1204 lines
103 KiB
Text
1204 lines
103 KiB
Text
<!DOCTYPE html>
|
||
<html lang="en" dir="ltr" prefix="content: http://purl.org/rss/1.0/modules/content/ dc: http://purl.org/dc/terms/ foaf: http://xmlns.com/foaf/0.1/ og: http://ogp.me/ns# rdfs: http://www.w3.org/2000/01/rdf-schema# schema: http://schema.org/ sioc: http://rdfs.org/sioc/ns# sioct: http://rdfs.org/sioc/types# skos: http://www.w3.org/2004/02/skos/core# xsd: http://www.w3.org/2001/XMLSchema# ">
|
||
<head>
|
||
<meta charset="utf-8" /><script type="text/javascript">(window.NREUM||(NREUM={})).init={ajax:{deny_list:["bam.nr-data.net"]}};(window.NREUM||(NREUM={})).loader_config={licenseKey:"37b7ccb661",applicationID:"1089704227"};;/*! For license information please see nr-loader-rum-1.283.2.min.js.LICENSE.txt */
|
||
(()=>{var e,t,r={122:(e,t,r)=>{"use strict";r.d(t,{a:()=>i});var n=r(944);function i(e,t){try{if(!e||"object"!=typeof e)return(0,n.R)(3);if(!t||"object"!=typeof t)return(0,n.R)(4);const r=Object.create(Object.getPrototypeOf(t),Object.getOwnPropertyDescriptors(t)),o=0===Object.keys(r).length?e:r;for(let a in o)if(void 0!==e[a])try{if(null===e[a]){r[a]=null;continue}Array.isArray(e[a])&&Array.isArray(t[a])?r[a]=Array.from(new Set([...e[a],...t[a]])):"object"==typeof e[a]&&"object"==typeof t[a]?r[a]=i(e[a],t[a]):r[a]=e[a]}catch(e){(0,n.R)(1,e)}return r}catch(e){(0,n.R)(2,e)}}},555:(e,t,r)=>{"use strict";r.d(t,{Vp:()=>c,fn:()=>s,x1:()=>u});var n=r(384),i=r(122);const o={beacon:n.NT.beacon,errorBeacon:n.NT.errorBeacon,licenseKey:void 0,applicationID:void 0,sa:void 0,queueTime:void 0,applicationTime:void 0,ttGuid:void 0,user:void 0,account:void 0,product:void 0,extra:void 0,jsAttributes:{},userAttributes:void 0,atts:void 0,transactionName:void 0,tNamePlain:void 0},a={};function s(e){try{const t=c(e);return!!t.licenseKey&&!!t.errorBeacon&&!!t.applicationID}catch(e){return!1}}function c(e){if(!e)throw new Error("All info objects require an agent identifier!");if(!a[e])throw new Error("Info for ".concat(e," was never set"));return a[e]}function u(e,t){if(!e)throw new Error("All info objects require an agent identifier!");a[e]=(0,i.a)(t,o);const r=(0,n.nY)(e);r&&(r.info=a[e])}},217:(e,t,r)=>{"use strict";r.d(t,{D0:()=>m,gD:()=>v,xN:()=>h});r(860).K7.genericEvents;const n="experimental.marks",i="experimental.measures",o="experimental.resources",a=e=>{if(!e||"string"!=typeof e)return!1;try{document.createDocumentFragment().querySelector(e)}catch{return!1}return!0};var s=r(614),c=r(944),u=r(384),l=r(122);const d="[data-nr-mask]",f=()=>{const e={feature_flags:[],experimental:{marks:!1,measures:!1,resources:!1},mask_selector:"*",block_selector:"[data-nr-block]",mask_input_options:{color:!1,date:!1,"datetime-local":!1,email:!1,month:!1,number:!1,range:!1,search:!1,tel:!1,text:!1,time:!1,url:!1,week:!1,textarea:!1,select:!1,password:!0}};return{ajax:{deny_list:void 0,block_internal:!0,enabled:!0,autoStart:!0},distributed_tracing:{enabled:void 0,exclude_newrelic_header:void 0,cors_use_newrelic_header:void 0,cors_use_tracecontext_headers:void 0,allowed_origins:void 0},get feature_flags(){return e.feature_flags},set feature_flags(t){e.feature_flags=t},generic_events:{enabled:!0,autoStart:!0},harvest:{interval:30},jserrors:{enabled:!0,autoStart:!0},logging:{enabled:!0,autoStart:!0},metrics:{enabled:!0,autoStart:!0},obfuscate:void 0,page_action:{enabled:!0},page_view_event:{enabled:!0,autoStart:!0},page_view_timing:{enabled:!0,autoStart:!0},performance:{get capture_marks(){return e.feature_flags.includes(n)||e.experimental.marks},set capture_marks(t){e.experimental.marks=t},get capture_measures(){return e.feature_flags.includes(i)||e.experimental.measures},set capture_measures(t){e.experimental.measures=t},capture_detail:!0,resources:{get enabled(){return e.feature_flags.includes(o)||e.experimental.resources},set enabled(t){e.experimental.resources=t},asset_types:[],first_party_domains:[],ignore_newrelic:!0}},privacy:{cookies_enabled:!0},proxy:{assets:void 0,beacon:void 0},session:{expiresMs:s.wk,inactiveMs:s.BB},session_replay:{autoStart:!0,enabled:!1,preload:!1,sampling_rate:10,error_sampling_rate:100,collect_fonts:!1,inline_images:!1,fix_stylesheets:!0,mask_all_inputs:!0,get mask_text_selector(){return e.mask_selector},set mask_text_selector(t){a(t)?e.mask_selector="".concat(t,",").concat(d):""===t||null===t?e.mask_selector=d:(0,c.R)(5,t)},get block_class(){return"nr-block"},get ignore_class(){return"nr-ignore"},get mask_text_class(){return"nr-mask"},get block_selector(){return e.block_selector},set block_selector(t){a(t)?e.block_selector+=",".concat(t):""!==t&&(0,c.R)(6,t)},get mask_input_options(){return e.mask_input_options},set mask_input_options(t){t&&"object"==typeof t?e.mask_input_options={...t,password:!0}:(0,c.R)(7,t)}},session_trace:{enabled:!0,autoStart:!0},soft_navigations:{enabled:!0,autoStart:!0},spa:{enabled:!0,autoStart:!0},ssl:void 0,user_actions:{enabled:!0,elementAttributes:["id","className","tagName","type"]}}},g={},p="All configuration objects require an agent identifier!";function m(e){if(!e)throw new Error(p);if(!g[e])throw new Error("Configuration for ".concat(e," was never set"));return g[e]}function h(e,t){if(!e)throw new Error(p);g[e]=(0,l.a)(t,f());const r=(0,u.nY)(e);r&&(r.init=g[e])}function v(e,t){if(!e)throw new Error(p);var r=m(e);if(r){for(var n=t.split("."),i=0;i<n.length-1;i++)if("object"!=typeof(r=r[n[i]]))return;r=r[n[n.length-1]]}return r}},371:(e,t,r)=>{"use strict";r.d(t,{V:()=>f,f:()=>d});var n=r(122),i=r(384),o=r(154),a=r(324);let s=0;const c={buildEnv:a.F3,distMethod:a.Xs,version:a.xv,originTime:o.WN},u={customTransaction:void 0,disabled:!1,isolatedBacklog:!1,loaderType:void 0,maxBytes:3e4,onerror:void 0,ptid:void 0,releaseIds:{},appMetadata:{},session:void 0,denyList:void 0,timeKeeper:void 0,obfuscator:void 0,harvester:void 0},l={};function d(e){if(!e)throw new Error("All runtime objects require an agent identifier!");if(!l[e])throw new Error("Runtime for ".concat(e," was never set"));return l[e]}function f(e,t){if(!e)throw new Error("All runtime objects require an agent identifier!");l[e]={...(0,n.a)(t,u),...c},Object.hasOwnProperty.call(l[e],"harvestCount")||Object.defineProperty(l[e],"harvestCount",{get:()=>++s});const r=(0,i.nY)(e);r&&(r.runtime=l[e])}},324:(e,t,r)=>{"use strict";r.d(t,{F3:()=>i,Xs:()=>o,xv:()=>n});const n="1.283.2",i="PROD",o="CDN"},154:(e,t,r)=>{"use strict";r.d(t,{OF:()=>c,RI:()=>i,WN:()=>l,bv:()=>o,gm:()=>a,mw:()=>s,sb:()=>u});var n=r(863);const i="undefined"!=typeof window&&!!window.document,o="undefined"!=typeof WorkerGlobalScope&&("undefined"!=typeof self&&self instanceof WorkerGlobalScope&&self.navigator instanceof WorkerNavigator||"undefined"!=typeof globalThis&&globalThis instanceof WorkerGlobalScope&&globalThis.navigator instanceof WorkerNavigator),a=i?window:"undefined"!=typeof WorkerGlobalScope&&("undefined"!=typeof self&&self instanceof WorkerGlobalScope&&self||"undefined"!=typeof globalThis&&globalThis instanceof WorkerGlobalScope&&globalThis),s=Boolean("hidden"===a?.document?.visibilityState),c=/iPad|iPhone|iPod/.test(a.navigator?.userAgent),u=c&&"undefined"==typeof SharedWorker,l=((()=>{const e=a.navigator?.userAgent?.match(/Firefox[/\s](\d+\.\d+)/);Array.isArray(e)&&e.length>=2&&e[1]})(),Date.now()-(0,n.t)())},687:(e,t,r)=>{"use strict";r.d(t,{Ak:()=>c,Ze:()=>d,x3:()=>u});var n=r(836),i=r(606),o=r(860),a=r(646);const s={};function c(e,t){const r={staged:!1,priority:o.P3[t]||0};l(e),s[e].get(t)||s[e].set(t,r)}function u(e,t){e&&s[e]&&(s[e].get(t)&&s[e].delete(t),g(e,t,!1),s[e].size&&f(e))}function l(e){if(!e)throw new Error("agentIdentifier required");s[e]||(s[e]=new Map)}function d(e="",t="feature",r=!1){if(l(e),!e||!s[e].get(t)||r)return g(e,t);s[e].get(t).staged=!0,f(e)}function f(e){const t=Array.from(s[e]);t.every((([e,t])=>t.staged))&&(t.sort(((e,t)=>e[1].priority-t[1].priority)),t.forEach((([t])=>{s[e].delete(t),g(e,t)})))}function g(e,t,r=!0){const o=e?n.ee.get(e):n.ee,s=i.i.handlers;if(!o.aborted&&o.backlog&&s){if(r){const e=o.backlog[t],r=s[t];if(r){for(let t=0;e&&t<e.length;++t)p(e[t],r);Object.entries(r).forEach((([e,t])=>{Object.values(t||{}).forEach((t=>{t[0]?.on&&t[0]?.context()instanceof a.y&&t[0].on(e,t[1])}))}))}}o.isolatedBacklog||delete s[t],o.backlog[t]=null,o.emit("drain-"+t,[])}}function p(e,t){var r=e[1];Object.values(t[r]||{}).forEach((t=>{var r=e[0];if(t[0]===r){var n=t[1],i=e[3],o=e[2];n.apply(i,o)}}))}},836:(e,t,r)=>{"use strict";r.d(t,{P:()=>c,ee:()=>u});var n=r(384),i=r(990),o=r(371),a=r(646),s=r(607);const c="nr@context:".concat(s.W),u=function e(t,r){var n={},s={},l={},d=!1;try{d=16===r.length&&(0,o.f)(r).isolatedBacklog}catch(e){}var f={on:p,addEventListener:p,removeEventListener:function(e,t){var r=n[e];if(!r)return;for(var i=0;i<r.length;i++)r[i]===t&&r.splice(i,1)},emit:function(e,r,n,i,o){!1!==o&&(o=!0);if(u.aborted&&!i)return;t&&o&&t.emit(e,r,n);for(var a=g(n),c=m(e),l=c.length,d=0;d<l;d++)c[d].apply(a,r);var p=v()[s[e]];p&&p.push([f,e,r,a]);return a},get:h,listeners:m,context:g,buffer:function(e,t){const r=v();if(t=t||"feature",f.aborted)return;Object.entries(e||{}).forEach((([e,n])=>{s[n]=t,t in r||(r[t]=[])}))},abort:function(){f._aborted=!0,Object.keys(f.backlog).forEach((e=>{delete f.backlog[e]}))},isBuffering:function(e){return!!v()[s[e]]},debugId:r,backlog:d?{}:t&&"object"==typeof t.backlog?t.backlog:{},isolatedBacklog:d};return Object.defineProperty(f,"aborted",{get:()=>{let e=f._aborted||!1;return e||(t&&(e=t.aborted),e)}}),f;function g(e){return e&&e instanceof a.y?e:e?(0,i.I)(e,c,(()=>new a.y(c))):new a.y(c)}function p(e,t){n[e]=m(e).concat(t)}function m(e){return n[e]||[]}function h(t){return l[t]=l[t]||e(f,t)}function v(){return f.backlog}}(void 0,"globalEE"),l=(0,n.Zm)();l.ee||(l.ee=u)},646:(e,t,r)=>{"use strict";r.d(t,{y:()=>n});class n{constructor(e){this.contextId=e}}},908:(e,t,r)=>{"use strict";r.d(t,{d:()=>n,p:()=>i});var n=r(836).ee.get("handle");function i(e,t,r,i,o){o?(o.buffer([e],i),o.emit(e,t,r)):(n.buffer([e],i),n.emit(e,t,r))}},606:(e,t,r)=>{"use strict";r.d(t,{i:()=>o});var n=r(908);o.on=a;var i=o.handlers={};function o(e,t,r,o){a(o||n.d,i,e,t,r)}function a(e,t,r,i,o){o||(o="feature"),e||(e=n.d);var a=t[o]=t[o]||{};(a[r]=a[r]||[]).push([e,i])}},878:(e,t,r)=>{"use strict";function n(e,t){return{capture:e,passive:!1,signal:t}}function i(e,t,r=!1,i){window.addEventListener(e,t,n(r,i))}function o(e,t,r=!1,i){document.addEventListener(e,t,n(r,i))}r.d(t,{DD:()=>o,jT:()=>n,sp:()=>i})},607:(e,t,r)=>{"use strict";r.d(t,{W:()=>n});const n=(0,r(566).bz)()},566:(e,t,r)=>{"use strict";r.d(t,{LA:()=>s,bz:()=>a});var n=r(154);const i="xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx";function o(e,t){return e?15&e[t]:16*Math.random()|0}function a(){const e=n.gm?.crypto||n.gm?.msCrypto;let t,r=0;return e&&e.getRandomValues&&(t=e.getRandomValues(new Uint8Array(30))),i.split("").map((e=>"x"===e?o(t,r++).toString(16):"y"===e?(3&o()|8).toString(16):e)).join("")}function s(e){const t=n.gm?.crypto||n.gm?.msCrypto;let r,i=0;t&&t.getRandomValues&&(r=t.getRandomValues(new Uint8Array(e)));const a=[];for(var s=0;s<e;s++)a.push(o(r,i++).toString(16));return a.join("")}},614:(e,t,r)=>{"use strict";r.d(t,{BB:()=>a,H3:()=>n,g:()=>u,iL:()=>c,tS:()=>s,uh:()=>i,wk:()=>o});const n="NRBA",i="SESSION",o=144e5,a=18e5,s={STARTED:"session-started",PAUSE:"session-pause",RESET:"session-reset",RESUME:"session-resume",UPDATE:"session-update"},c={SAME_TAB:"same-tab",CROSS_TAB:"cross-tab"},u={OFF:0,FULL:1,ERROR:2}},863:(e,t,r)=>{"use strict";function n(){return Math.floor(performance.now())}r.d(t,{t:()=>n})},944:(e,t,r)=>{"use strict";function n(e,t){"function"==typeof console.debug&&console.debug("New Relic Warning: https://github.com/newrelic/newrelic-browser-agent/blob/main/docs/warning-codes.md#".concat(e),t)}r.d(t,{R:()=>n})},284:(e,t,r)=>{"use strict";r.d(t,{t:()=>c,B:()=>s});var n=r(836),i=r(154);const o="newrelic";const a=new Set,s={};function c(e,t){const r=n.ee.get(t);s[t]??={},e&&"object"==typeof e&&(a.has(t)||(r.emit("rumresp",[e]),s[t]=e,a.add(t),function(e={}){try{i.gm.dispatchEvent(new CustomEvent(o,{detail:e}))}catch(e){}}({loaded:!0})))}},990:(e,t,r)=>{"use strict";r.d(t,{I:()=>i});var n=Object.prototype.hasOwnProperty;function i(e,t,r){if(n.call(e,t))return e[t];var i=r();if(Object.defineProperty&&Object.keys)try{return Object.defineProperty(e,t,{value:i,writable:!0,enumerable:!1}),i}catch(e){}return e[t]=i,i}},389:(e,t,r)=>{"use strict";function n(e,t=500,r={}){const n=r?.leading||!1;let i;return(...r)=>{n&&void 0===i&&(e.apply(this,r),i=setTimeout((()=>{i=clearTimeout(i)}),t)),n||(clearTimeout(i),i=setTimeout((()=>{e.apply(this,r)}),t))}}function i(e){let t=!1;return(...r)=>{t||(t=!0,e.apply(this,r))}}r.d(t,{J:()=>i,s:()=>n})},289:(e,t,r)=>{"use strict";r.d(t,{GG:()=>o,sB:()=>a});var n=r(878);function i(){return"undefined"==typeof document||"complete"===document.readyState}function o(e,t){if(i())return e();(0,n.sp)("load",e,t)}function a(e){if(i())return e();(0,n.DD)("DOMContentLoaded",e)}},384:(e,t,r)=>{"use strict";r.d(t,{NT:()=>o,US:()=>l,Zm:()=>a,bQ:()=>c,dV:()=>s,nY:()=>u,pV:()=>d});var n=r(154),i=r(863);const o={beacon:"bam.nr-data.net",errorBeacon:"bam.nr-data.net"};function a(){return n.gm.NREUM||(n.gm.NREUM={}),void 0===n.gm.newrelic&&(n.gm.newrelic=n.gm.NREUM),n.gm.NREUM}function s(){let e=a();return e.o||(e.o={ST:n.gm.setTimeout,SI:n.gm.setImmediate,CT:n.gm.clearTimeout,XHR:n.gm.XMLHttpRequest,REQ:n.gm.Request,EV:n.gm.Event,PR:n.gm.Promise,MO:n.gm.MutationObserver,FETCH:n.gm.fetch,WS:n.gm.WebSocket}),e}function c(e,t){let r=a();r.initializedAgents??={},t.initializedAt={ms:(0,i.t)(),date:new Date},r.initializedAgents[e]=t}function u(e){let t=a();return t.initializedAgents?.[e]}function l(e,t){a()[e]=t}function d(){return function(){let e=a();const t=e.info||{};e.info={beacon:o.beacon,errorBeacon:o.errorBeacon,...t}}(),function(){let e=a();const t=e.init||{};e.init={...t}}(),s(),function(){let e=a();const t=e.loader_config||{};e.loader_config={...t}}(),a()}},843:(e,t,r)=>{"use strict";r.d(t,{u:()=>i});var n=r(878);function i(e,t=!1,r,i){(0,n.DD)("visibilitychange",(function(){if(t)return void("hidden"===document.visibilityState&&e());e(document.visibilityState)}),r,i)}},434:(e,t,r)=>{"use strict";r.d(t,{Jt:()=>o,YM:()=>c});var n=r(836),i=r(607);const o="nr@original:".concat(i.W);var a=Object.prototype.hasOwnProperty,s=!1;function c(e,t){return e||(e=n.ee),r.inPlace=function(e,t,n,i,o){n||(n="");const a="-"===n.charAt(0);for(let s=0;s<t.length;s++){const c=t[s],u=e[c];l(u)||(e[c]=r(u,a?c+n:n,i,c,o))}},r.flag=o,r;function r(t,r,n,s,c){return l(t)?t:(r||(r=""),nrWrapper[o]=t,function(e,t,r){if(Object.defineProperty&&Object.keys)try{return Object.keys(e).forEach((function(r){Object.defineProperty(t,r,{get:function(){return e[r]},set:function(t){return e[r]=t,t}})})),t}catch(e){u([e],r)}for(var n in e)a.call(e,n)&&(t[n]=e[n])}(t,nrWrapper,e),nrWrapper);function nrWrapper(){var o,a,l,d;try{a=this,o=[...arguments],l="function"==typeof n?n(o,a):n||{}}catch(t){u([t,"",[o,a,s],l],e)}i(r+"start",[o,a,s],l,c);try{return d=t.apply(a,o)}catch(e){throw i(r+"err",[o,a,e],l,c),e}finally{i(r+"end",[o,a,d],l,c)}}}function i(r,n,i,o){if(!s||t){var a=s;s=!0;try{e.emit(r,n,i,t,o)}catch(t){u([t,r,n,i],e)}s=a}}}function u(e,t){t||(t=n.ee);try{t.emit("internal-error",e)}catch(e){}}function l(e){return!(e&&"function"==typeof e&&e.apply&&!e[o])}},993:(e,t,r)=>{"use strict";r.d(t,{A$:()=>o,ET:()=>a,p_:()=>i});var n=r(860);const i={ERROR:"ERROR",WARN:"WARN",INFO:"INFO",DEBUG:"DEBUG",TRACE:"TRACE"},o={OFF:0,ERROR:1,WARN:2,INFO:3,DEBUG:4,TRACE:5},a="log";n.K7.logging},773:(e,t,r)=>{"use strict";r.d(t,{z_:()=>o,XG:()=>s,TZ:()=>n,rs:()=>i,xV:()=>a});r(154),r(566),r(384);const n=r(860).K7.metrics,i="sm",o="cm",a="storeSupportabilityMetrics",s="storeEventMetrics"},630:(e,t,r)=>{"use strict";r.d(t,{T:()=>n});const n=r(860).K7.pageViewEvent},782:(e,t,r)=>{"use strict";r.d(t,{T:()=>n});const n=r(860).K7.pageViewTiming},344:(e,t,r)=>{"use strict";r.d(t,{G4:()=>i});var n=r(614);r(860).K7.sessionReplay;const i={RECORD:"recordReplay",PAUSE:"pauseReplay",REPLAY_RUNNING:"replayRunning",ERROR_DURING_REPLAY:"errorDuringReplay"};n.g.ERROR,n.g.FULL,n.g.OFF},234:(e,t,r)=>{"use strict";r.d(t,{W:()=>o});var n=r(836),i=r(687);class o{constructor(e,t){this.agentIdentifier=e,this.ee=n.ee.get(e),this.featureName=t,this.blocked=!1}deregisterDrain(){(0,i.x3)(this.agentIdentifier,this.featureName)}}},603:(e,t,r)=>{"use strict";r.d(t,{j:()=>K});var n=r(860),i=r(555),o=r(371),a=r(908),s=r(836),c=r(687),u=r(289),l=r(154),d=r(944),f=r(773),g=r(384),p=r(344);const m=["setErrorHandler","finished","addToTrace","addRelease","recordCustomEvent","addPageAction","setCurrentRouteName","setPageViewName","setCustomAttribute","interaction","noticeError","setUserId","setApplicationVersion","start",p.G4.RECORD,p.G4.PAUSE,"log","wrapLogger"],h=["setErrorHandler","finished","addToTrace","addRelease"];var v=r(863),b=r(614),y=r(993);var w=r(646),R=r(434);const A=new Map;function E(e,t,r,n){if("object"!=typeof t||!t||"string"!=typeof r||!r||"function"!=typeof t[r])return(0,d.R)(29);const i=function(e){return(e||s.ee).get("logger")}(e),o=(0,R.YM)(i),a=new w.y(s.P);a.level=n.level,a.customAttributes=n.customAttributes;const c=t[r]?.[R.Jt]||t[r];return A.set(c,a),o.inPlace(t,[r],"wrap-logger-",(()=>A.get(c))),i}function _(){const e=(0,g.pV)();m.forEach((t=>{e[t]=(...r)=>function(t,...r){let n=[];return Object.values(e.initializedAgents).forEach((e=>{e&&e.api?e.exposed&&e.api[t]&&n.push(e.api[t](...r)):(0,d.R)(38,t)})),n.length>1?n:n[0]}(t,...r)}))}const x={};function N(e,t,g=!1){t||(0,c.Ak)(e,"api");const m={};var w=s.ee.get(e),R=w.get("tracer");x[e]=b.g.OFF,w.on(p.G4.REPLAY_RUNNING,(t=>{x[e]=t}));var A="api-",_=A+"ixn-";function N(t,r,n,o){const a=(0,i.Vp)(e);return null===r?delete a.jsAttributes[t]:(0,i.x1)(e,{...a,jsAttributes:{...a.jsAttributes,[t]:r}}),j(A,n,!0,o||null===r?"session":void 0)(t,r)}function k(){}m.log=function(e,{customAttributes:t={},level:r=y.p_.INFO}={}){(0,a.p)(f.xV,["API/log/called"],void 0,n.K7.metrics,w),function(e,t,r={},i=y.p_.INFO){(0,a.p)(f.xV,["API/logging/".concat(i.toLowerCase(),"/called")],void 0,n.K7.metrics,e),(0,a.p)(y.ET,[(0,v.t)(),t,r,i],void 0,n.K7.logging,e)}(w,e,t,r)},m.wrapLogger=(e,t,{customAttributes:r={},level:i=y.p_.INFO}={})=>{(0,a.p)(f.xV,["API/wrapLogger/called"],void 0,n.K7.metrics,w),E(w,e,t,{customAttributes:r,level:i})},h.forEach((e=>{m[e]=j(A,e,!0,"api")})),m.addPageAction=j(A,"addPageAction",!0,n.K7.genericEvents),m.recordCustomEvent=j(A,"recordCustomEvent",!0,n.K7.genericEvents),m.setPageViewName=function(t,r){if("string"==typeof t)return"/"!==t.charAt(0)&&(t="/"+t),(0,o.f)(e).customTransaction=(r||"http://custom.transaction")+t,j(A,"setPageViewName",!0)()},m.setCustomAttribute=function(e,t,r=!1){if("string"==typeof e){if(["string","number","boolean"].includes(typeof t)||null===t)return N(e,t,"setCustomAttribute",r);(0,d.R)(40,typeof t)}else(0,d.R)(39,typeof e)},m.setUserId=function(e){if("string"==typeof e||null===e)return N("enduser.id",e,"setUserId",!0);(0,d.R)(41,typeof e)},m.setApplicationVersion=function(e){if("string"==typeof e||null===e)return N("application.version",e,"setApplicationVersion",!1);(0,d.R)(42,typeof e)},m.start=()=>{try{(0,a.p)(f.xV,["API/start/called"],void 0,n.K7.metrics,w),w.emit("manual-start-all")}catch(e){(0,d.R)(23,e)}},m[p.G4.RECORD]=function(){(0,a.p)(f.xV,["API/recordReplay/called"],void 0,n.K7.metrics,w),(0,a.p)(p.G4.RECORD,[],void 0,n.K7.sessionReplay,w)},m[p.G4.PAUSE]=function(){(0,a.p)(f.xV,["API/pauseReplay/called"],void 0,n.K7.metrics,w),(0,a.p)(p.G4.PAUSE,[],void 0,n.K7.sessionReplay,w)},m.interaction=function(e){return(new k).get("object"==typeof e?e:{})};const T=k.prototype={createTracer:function(e,t){var r={},i=this,o="function"==typeof t;return(0,a.p)(f.xV,["API/createTracer/called"],void 0,n.K7.metrics,w),g||(0,a.p)(_+"tracer",[(0,v.t)(),e,r],i,n.K7.spa,w),function(){if(R.emit((o?"":"no-")+"fn-start",[(0,v.t)(),i,o],r),o)try{return t.apply(this,arguments)}catch(e){const t="string"==typeof e?new Error(e):e;throw R.emit("fn-err",[arguments,this,t],r),t}finally{R.emit("fn-end",[(0,v.t)()],r)}}}};function j(e,t,r,i){return function(){return(0,a.p)(f.xV,["API/"+t+"/called"],void 0,n.K7.metrics,w),i&&(0,a.p)(e+t,[r?(0,v.t)():performance.now(),...arguments],r?null:this,i,w),r?void 0:this}}function I(){r.e(296).then(r.bind(r,778)).then((({setAPI:t})=>{t(e),(0,c.Ze)(e,"api")})).catch((e=>{(0,d.R)(27,e),w.abort()}))}return["actionText","setName","setAttribute","save","ignore","onEnd","getContext","end","get"].forEach((e=>{T[e]=j(_,e,void 0,g?n.K7.softNav:n.K7.spa)})),m.setCurrentRouteName=g?j(_,"routeName",void 0,n.K7.softNav):j(A,"routeName",!0,n.K7.spa),m.noticeError=function(t,r){"string"==typeof t&&(t=new Error(t)),(0,a.p)(f.xV,["API/noticeError/called"],void 0,n.K7.metrics,w),(0,a.p)("err",[t,(0,v.t)(),!1,r,!!x[e]],void 0,n.K7.jserrors,w)},l.RI?(0,u.GG)((()=>I()),!0):I(),m}var k=r(217),T=r(122);const j={accountID:void 0,trustKey:void 0,agentID:void 0,licenseKey:void 0,applicationID:void 0,xpid:void 0},I={};var O=r(284);const S=e=>{const t=e.startsWith("http");e+="/",r.p=t?e:"https://"+e};let P=!1;function K(e,t={},r,n){let{init:a,info:c,loader_config:u,runtime:d={},exposed:f=!0}=t;d.loaderType=r;const p=(0,g.pV)();c||(a=p.init,c=p.info,u=p.loader_config),(0,k.xN)(e.agentIdentifier,a||{}),function(e,t){if(!e)throw new Error("All loader-config objects require an agent identifier!");I[e]=(0,T.a)(t,j);const r=(0,g.nY)(e);r&&(r.loader_config=I[e])}(e.agentIdentifier,u||{}),c.jsAttributes??={},l.bv&&(c.jsAttributes.isWorker=!0),(0,i.x1)(e.agentIdentifier,c);const m=(0,k.D0)(e.agentIdentifier),h=[c.beacon,c.errorBeacon];P||(m.proxy.assets&&(S(m.proxy.assets),h.push(m.proxy.assets)),m.proxy.beacon&&h.push(m.proxy.beacon),_(),(0,g.US)("activatedFeatures",O.B),e.runSoftNavOverSpa&&=!0===m.soft_navigations.enabled&&m.feature_flags.includes("soft_nav")),d.denyList=[...m.ajax.deny_list||[],...m.ajax.block_internal?h:[]],d.ptid=e.agentIdentifier,(0,o.V)(e.agentIdentifier,d),e.ee=s.ee.get(e.agentIdentifier),void 0===e.api&&(e.api=N(e.agentIdentifier,n,e.runSoftNavOverSpa)),void 0===e.exposed&&(e.exposed=f),P=!0}},374:(e,t,r)=>{r.nc=(()=>{try{return document?.currentScript?.nonce}catch(e){}return""})()},860:(e,t,r)=>{"use strict";r.d(t,{$J:()=>u,K7:()=>s,P3:()=>c,XX:()=>i,qY:()=>n,v4:()=>a});const n="events",i="jserrors",o="browser/blobs",a="rum",s={ajax:"ajax",genericEvents:"generic_events",jserrors:i,logging:"logging",metrics:"metrics",pageAction:"page_action",pageViewEvent:"page_view_event",pageViewTiming:"page_view_timing",sessionReplay:"session_replay",sessionTrace:"session_trace",softNav:"soft_navigations",spa:"spa"},c={[s.pageViewEvent]:1,[s.pageViewTiming]:2,[s.metrics]:3,[s.jserrors]:4,[s.spa]:5,[s.ajax]:6,[s.sessionTrace]:7,[s.softNav]:8,[s.sessionReplay]:9,[s.logging]:10,[s.genericEvents]:11},u={[s.pageViewEvent]:a,[s.pageViewTiming]:n,[s.ajax]:n,[s.spa]:n,[s.softNav]:n,[s.metrics]:i,[s.jserrors]:i,[s.sessionTrace]:o,[s.sessionReplay]:o,[s.logging]:"browser/logs",[s.genericEvents]:"ins"}}},n={};function i(e){var t=n[e];if(void 0!==t)return t.exports;var o=n[e]={exports:{}};return r[e](o,o.exports,i),o.exports}i.m=r,i.d=(e,t)=>{for(var r in t)i.o(t,r)&&!i.o(e,r)&&Object.defineProperty(e,r,{enumerable:!0,get:t[r]})},i.f={},i.e=e=>Promise.all(Object.keys(i.f).reduce(((t,r)=>(i.f[r](e,t),t)),[])),i.u=e=>"nr-rum-1.283.2.min.js",i.o=(e,t)=>Object.prototype.hasOwnProperty.call(e,t),e={},t="NRBA-1.283.2.PROD:",i.l=(r,n,o,a)=>{if(e[r])e[r].push(n);else{var s,c;if(void 0!==o)for(var u=document.getElementsByTagName("script"),l=0;l<u.length;l++){var d=u[l];if(d.getAttribute("src")==r||d.getAttribute("data-webpack")==t+o){s=d;break}}if(!s){c=!0;var f={296:"sha512-2Y8GMAOGF658KnXzOZ/v+DlLch8TBFvV0tTNnOy9wrpvtDa1t5CdZMyX+LubTymBlzPp6NUjllBghMCZqXBPmg=="};(s=document.createElement("script")).charset="utf-8",s.timeout=120,i.nc&&s.setAttribute("nonce",i.nc),s.setAttribute("data-webpack",t+o),s.src=r,0!==s.src.indexOf(window.location.origin+"/")&&(s.crossOrigin="anonymous"),f[a]&&(s.integrity=f[a])}e[r]=[n];var g=(t,n)=>{s.onerror=s.onload=null,clearTimeout(p);var i=e[r];if(delete e[r],s.parentNode&&s.parentNode.removeChild(s),i&&i.forEach((e=>e(n))),t)return t(n)},p=setTimeout(g.bind(null,void 0,{type:"timeout",target:s}),12e4);s.onerror=g.bind(null,s.onerror),s.onload=g.bind(null,s.onload),c&&document.head.appendChild(s)}},i.r=e=>{"undefined"!=typeof Symbol&&Symbol.toStringTag&&Object.defineProperty(e,Symbol.toStringTag,{value:"Module"}),Object.defineProperty(e,"__esModule",{value:!0})},i.p="https://js-agent.newrelic.com/",(()=>{var e={374:0,840:0};i.f.j=(t,r)=>{var n=i.o(e,t)?e[t]:void 0;if(0!==n)if(n)r.push(n[2]);else{var o=new Promise(((r,i)=>n=e[t]=[r,i]));r.push(n[2]=o);var a=i.p+i.u(t),s=new Error;i.l(a,(r=>{if(i.o(e,t)&&(0!==(n=e[t])&&(e[t]=void 0),n)){var o=r&&("load"===r.type?"missing":r.type),a=r&&r.target&&r.target.src;s.message="Loading chunk "+t+" failed.\n("+o+": "+a+")",s.name="ChunkLoadError",s.type=o,s.request=a,n[1](s)}}),"chunk-"+t,t)}};var t=(t,r)=>{var n,o,[a,s,c]=r,u=0;if(a.some((t=>0!==e[t]))){for(n in s)i.o(s,n)&&(i.m[n]=s[n]);if(c)c(i)}for(t&&t(r);u<a.length;u++)o=a[u],i.o(e,o)&&e[o]&&e[o][0](),e[o]=0},r=self["webpackChunk:NRBA-1.283.2.PROD"]=self["webpackChunk:NRBA-1.283.2.PROD"]||[];r.forEach(t.bind(null,0)),r.push=t.bind(null,r.push.bind(r))})(),(()=>{"use strict";i(374);var e=i(944),t=i(344),r=i(566);class n{agentIdentifier;constructor(){this.agentIdentifier=(0,r.LA)(16)}#e(t,...r){if("function"==typeof this.api?.[t])return this.api[t](...r);(0,e.R)(35,t)}addPageAction(e,t){return this.#e("addPageAction",e,t)}recordCustomEvent(e,t){return this.#e("recordCustomEvent",e,t)}setPageViewName(e,t){return this.#e("setPageViewName",e,t)}setCustomAttribute(e,t,r){return this.#e("setCustomAttribute",e,t,r)}noticeError(e,t){return this.#e("noticeError",e,t)}setUserId(e){return this.#e("setUserId",e)}setApplicationVersion(e){return this.#e("setApplicationVersion",e)}setErrorHandler(e){return this.#e("setErrorHandler",e)}addRelease(e,t){return this.#e("addRelease",e,t)}log(e,t){return this.#e("log",e,t)}}class o extends n{#e(t,...r){if("function"==typeof this.api?.[t])return this.api[t](...r);(0,e.R)(35,t)}start(){return this.#e("start")}finished(e){return this.#e("finished",e)}recordReplay(){return this.#e(t.G4.RECORD)}pauseReplay(){return this.#e(t.G4.PAUSE)}addToTrace(e){return this.#e("addToTrace",e)}setCurrentRouteName(e){return this.#e("setCurrentRouteName",e)}interaction(){return this.#e("interaction")}wrapLogger(e,t,r){return this.#e("wrapLogger",e,t,r)}}var a=i(860),s=i(217);const c=Object.values(a.K7);function u(e){const t={};return c.forEach((r=>{t[r]=function(e,t){return!0===(0,s.gD)(t,"".concat(e,".enabled"))}(r,e)})),t}var l=i(603);var d=i(687),f=i(234),g=i(289),p=i(154),m=i(384);const h=e=>p.RI&&!0===(0,s.gD)(e,"privacy.cookies_enabled");function v(e){return!!(0,m.dV)().o.MO&&h(e)&&!0===(0,s.gD)(e,"session_trace.enabled")}var b=i(389);class y extends f.W{constructor(e,t,r=!0){super(e.agentIdentifier,t),this.auto=r,this.abortHandler=void 0,this.featAggregate=void 0,this.onAggregateImported=void 0,!1===e.init[this.featureName].autoStart&&(this.auto=!1),this.auto?(0,d.Ak)(e.agentIdentifier,t):this.ee.on("manual-start-all",(0,b.J)((()=>{(0,d.Ak)(e.agentIdentifier,this.featureName),this.auto=!0,this.importAggregator(e)})))}importAggregator(t,r={}){if(this.featAggregate||!this.auto)return;let n;this.onAggregateImported=new Promise((e=>{n=e}));const o=async()=>{let o;try{if(h(this.agentIdentifier)){const{setupAgentSession:e}=await i.e(296).then(i.bind(i,861));o=e(t)}}catch(t){(0,e.R)(20,t),this.ee.emit("internal-error",[t]),this.featureName===a.K7.sessionReplay&&this.abortHandler?.()}try{if(!this.#t(this.featureName,o))return(0,d.Ze)(this.agentIdentifier,this.featureName),void n(!1);const{lazyFeatureLoader:e}=await i.e(296).then(i.bind(i,103)),{Aggregate:a}=await e(this.featureName,"aggregate");this.featAggregate=new a(t,r),t.runtime.harvester.initializedAggregates.push(this.featAggregate),n(!0)}catch(t){(0,e.R)(34,t),this.abortHandler?.(),(0,d.Ze)(this.agentIdentifier,this.featureName,!0),n(!1),this.ee&&this.ee.abort()}};p.RI?(0,g.GG)((()=>o()),!0):o()}#t(e,t){switch(e){case a.K7.sessionReplay:return v(this.agentIdentifier)&&!!t;case a.K7.sessionTrace:return!!t;default:return!0}}}var w=i(630);class R extends y{static featureName=w.T;constructor(e,t=!0){super(e,w.T,t),this.importAggregator(e)}}var A=i(908),E=i(843),_=i(878),x=i(782),N=i(863);class k extends y{static featureName=x.T;constructor(e,t=!0){super(e,x.T,t),p.RI&&((0,E.u)((()=>(0,A.p)("docHidden",[(0,N.t)()],void 0,x.T,this.ee)),!0),(0,_.sp)("pagehide",(()=>(0,A.p)("winPagehide",[(0,N.t)()],void 0,x.T,this.ee))),this.importAggregator(e))}}var T=i(773);class j extends y{static featureName=T.TZ;constructor(e,t=!0){super(e,T.TZ,t),this.importAggregator(e)}}new class extends o{constructor(t){super(),p.gm?(this.features={},(0,m.bQ)(this.agentIdentifier,this),this.desiredFeatures=new Set(t.features||[]),this.desiredFeatures.add(R),this.runSoftNavOverSpa=[...this.desiredFeatures].some((e=>e.featureName===a.K7.softNav)),(0,l.j)(this,t,t.loaderType||"agent"),this.run()):(0,e.R)(21)}get config(){return{info:this.info,init:this.init,loader_config:this.loader_config,runtime:this.runtime}}run(){try{const t=u(this.agentIdentifier),r=[...this.desiredFeatures];r.sort(((e,t)=>a.P3[e.featureName]-a.P3[t.featureName])),r.forEach((r=>{if(!t[r.featureName]&&r.featureName!==a.K7.pageViewEvent)return;if(this.runSoftNavOverSpa&&r.featureName===a.K7.spa)return;if(!this.runSoftNavOverSpa&&r.featureName===a.K7.softNav)return;const n=function(e){switch(e){case a.K7.ajax:return[a.K7.jserrors];case a.K7.sessionTrace:return[a.K7.ajax,a.K7.pageViewEvent];case a.K7.sessionReplay:return[a.K7.sessionTrace];case a.K7.pageViewTiming:return[a.K7.pageViewEvent];default:return[]}}(r.featureName).filter((e=>!(e in this.features)));n.length>0&&(0,e.R)(36,{targetFeature:r.featureName,missingDependencies:n}),this.features[r.featureName]=new r(this)}))}catch(t){(0,e.R)(22,t);for(const e in this.features)this.features[e].abortHandler?.();const r=(0,m.Zm)();delete r.initializedAgents[this.agentIdentifier]?.api,delete r.initializedAgents[this.agentIdentifier]?.features,delete this.sharedAggregator;return r.ee.get(this.agentIdentifier).abort(),!1}}}({features:[R,k,j],loaderType:"lite"})})()})();</script>
|
||
<noscript><style>form.antibot * :not(.antibot-message) { display: none !important; }</style>
|
||
</noscript><script async src="https://www.googletagmanager.com/gtag/js?id=G-HEQ0YF2VYL"></script>
|
||
<script>window.dataLayer = window.dataLayer || [];function gtag(){dataLayer.push(arguments)};gtag("js", new Date());gtag("set", "developer_id.dMDhkMT", true);gtag('set', {'cookie_flags': 'SameSite=None;Secure', 'cookie_domain': 'www.nist.gov'});gtag("config", "G-HEQ0YF2VYL", {"groups":"default","page_placeholder":"PLACEHOLDER_page_location","link_attribution":true,"allow_ad_personalization_signals":false});gtag("config", "G-CSLL4ZEK4L", {"groups":"default","page_placeholder":"PLACEHOLDER_page_location","link_attribution":true,"allow_ad_personalization_signals":false});gtag("event", "custom", {"node_title":"Scalability Challenges in Privacy-Preserving Federated Learning","node_id":"1863706","blog_author":"Joseph Near, David Darais, Mark Durkee ","content_type":"Blog entry"});</script>
|
||
<meta name="description" content="This post is part of a series on privacy-preserving federated learning" />
|
||
<link rel="canonical" href="https://www.nist.gov/blogs/cybersecurity-insights/scalability-challenges-privacy-preserving-federated-learning" />
|
||
<link rel="shortlink" href="https://www.nist.gov/node/1863706" />
|
||
<meta name="citation_title" content="Scalability Challenges in Privacy-Preserving Federated Learning | NIST" />
|
||
<meta property="og:site_name" content="NIST" />
|
||
<meta property="og:type" content="Article" />
|
||
<meta property="og:url" content="https://www.nist.gov/blogs/cybersecurity-insights/scalability-challenges-privacy-preserving-federated-learning" />
|
||
<meta property="og:title" content="Scalability Challenges in Privacy-Preserving Federated Learning" />
|
||
<meta property="og:description" content="This post is part of a series on privacy-preserving federated learning" />
|
||
<meta property="og:image" content="https://www.nist.gov/themes/custom/nist_www/img/homepage/nist_mark.png" />
|
||
<meta property="article:author" content="Joseph Near" />
|
||
<meta property="article:published_time" content="2024-10-08T08:00-04:00" />
|
||
<meta property="article:modified_time" content="2024-10-08T09:40-04:00" />
|
||
<meta name="dcterms.title" content="Scalability Challenges in Privacy-Preserving Federated Learning" />
|
||
<meta name="dcterms.creator" content="Joseph Near" />
|
||
<meta name="dcterms.description" content="This post is part of a series on privacy-preserving federated learning" />
|
||
<meta name="dcterms.publisher" content="Joseph Near" />
|
||
<meta name="dcterms.contributor" content="NIST" />
|
||
<meta name="dcterms.date" content="2024-10-08T08:00-04:00" />
|
||
<meta name="dcterms.type" content="text" />
|
||
<meta name="dcterms.format" content="text/html" />
|
||
<meta name="dcterms.identifier" content="https://www.nist.gov/blogs/cybersecurity-insights/scalability-challenges-privacy-preserving-federated-learning" />
|
||
<meta name="dcterms.source" content="NIST" />
|
||
<meta name="dcterms.created" content="2024-10-08T08:00-04:00" />
|
||
<meta name="dcterms.modified" content="2024-10-08T09:40-04:00" />
|
||
<meta name="twitter:card" content="summary_large_image" />
|
||
<meta name="twitter:description" content="This post is part of a series on privacy-preserving federated learning" />
|
||
<meta name="twitter:site" content="NIST" />
|
||
<meta name="twitter:title" content="Scalability Challenges in Privacy-Preserving Federated Learning" />
|
||
<meta name="google-site-verification" content="QMu0ODkER3rN5hLcMLqNVf7e3bkjYsNLTuhqfH48jCA" />
|
||
<meta name="Generator" content="Drupal 10 (https://www.drupal.org)" />
|
||
<meta name="MobileOptimized" content="width" />
|
||
<meta name="HandheldFriendly" content="true" />
|
||
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
|
||
<meta name="nist_search_modified" class="elastic" content="2024-10-08T09:40:00-04:00" />
|
||
<script type="application/ld+json">{
|
||
"@context": "https://schema.org",
|
||
"@graph": [
|
||
{
|
||
"@type": "Article",
|
||
"@id": "https://www.nist.gov/blogs/cybersecurity-insights/scalability-challenges-privacy-preserving-federated-learning",
|
||
"headline": "Scalability Challenges in Privacy-Preserving Federated Learning",
|
||
"name": "Scalability Challenges in Privacy-Preserving Federated Learning",
|
||
"description": "This post is part of a series on privacy-preserving federated learning.",
|
||
"datePublished": "2024-10-08T08:00-04:00",
|
||
"dateModified": "2024-10-08T09:40-04:00",
|
||
"author": [
|
||
{
|
||
"@type": "Person",
|
||
"@id": "https://www.nist.gov/blogs/cybersecurity-insights/authors/joseph-near",
|
||
"name": "Joseph Near",
|
||
"url": "https://www.nist.gov/blogs/cybersecurity-insights/authors/joseph-near"
|
||
},
|
||
{
|
||
"@type": "Person",
|
||
"@id": "https://www.nist.gov/blogs/cybersecurity-insights/authors/david-darais",
|
||
"name": "David Darais",
|
||
"url": "https://www.nist.gov/blogs/cybersecurity-insights/authors/david-darais"
|
||
},
|
||
{
|
||
"@type": "Person",
|
||
"@id": "https://www.nist.gov/blogs/cybersecurity-insights/authors/mark-durkee",
|
||
"name": "Mark Durkee",
|
||
"url": "https://www.nist.gov/blogs/cybersecurity-insights/authors/mark-durkee"
|
||
}
|
||
],
|
||
"publisher": {
|
||
"@type": "GovernmentOrganization",
|
||
"@id": "https://www.nist.gov/",
|
||
"name": "National Institute of Standards and Technology",
|
||
"url": "https://www.nist.gov/"
|
||
}
|
||
}
|
||
]
|
||
}</script>
|
||
<meta name="nist_search_bundle" class="elastic" content="blog" />
|
||
<link rel="icon" href="/themes/custom/nist_www/favicon.ico" type="image/vnd.microsoft.icon" />
|
||
|
||
<title>Scalability Challenges in Privacy-Preserving Federated Learning | NIST</title>
|
||
<link rel="stylesheet" media="all" href="/sites/default/files/css/css_ZtlGKjRlcsetYFZOgm4XEB79Us1_9Rfto8uYAe8uLYA.css?delta=0&language=en&theme=nist_www&include=eJxFTgkKxDAI_FBoniQmkV2piSXaZvv7TfegIOIMc5gwr-A6Z4vpvoGzttDYHPxJlSankrBD1RILGyYhEG5rsNOc6vQaffTxIZpQvt4xxh_Tyy99LH3fUJYfDKaZUaBSYbxCOAfBU3eH2ZL1oH5GbZRVwsE0LH72Mt_Yhe6SyrmrsdMbgIdSHw" />
|
||
<link rel="stylesheet" media="all" href="/sites/default/files/css/css_kGS0ApDpFo-_3JI4Ijxg4RCWlTqsImK3lqH7bCv5v2U.css?delta=1&language=en&theme=nist_www&include=eJxFTgkKxDAI_FBoniQmkV2piSXaZvv7TfegIOIMc5gwr-A6Z4vpvoGzttDYHPxJlSankrBD1RILGyYhEG5rsNOc6vQaffTxIZpQvt4xxh_Tyy99LH3fUJYfDKaZUaBSYbxCOAfBU3eH2ZL1oH5GbZRVwsE0LH72Mt_Yhe6SyrmrsdMbgIdSHw" />
|
||
<link rel="stylesheet" media="print" href="/sites/default/files/css/css_-IXwLuTUdm8IGHxib8GX8wWKw3LjKsNWSYYskZ5fEGg.css?delta=2&language=en&theme=nist_www&include=eJxFTgkKxDAI_FBoniQmkV2piSXaZvv7TfegIOIMc5gwr-A6Z4vpvoGzttDYHPxJlSankrBD1RILGyYhEG5rsNOc6vQaffTxIZpQvt4xxh_Tyy99LH3fUJYfDKaZUaBSYbxCOAfBU3eH2ZL1oH5GbZRVwsE0LH72Mt_Yhe6SyrmrsdMbgIdSHw" />
|
||
<link rel="stylesheet" media="all" href="/sites/default/files/css/css_jmXeSZNqhh6ayjrVIlS8rDw3mcnQaE5dzE2ZwwPSzNA.css?delta=3&language=en&theme=nist_www&include=eJxFTgkKxDAI_FBoniQmkV2piSXaZvv7TfegIOIMc5gwr-A6Z4vpvoGzttDYHPxJlSankrBD1RILGyYhEG5rsNOc6vQaffTxIZpQvt4xxh_Tyy99LH3fUJYfDKaZUaBSYbxCOAfBU3eH2ZL1oH5GbZRVwsE0LH72Mt_Yhe6SyrmrsdMbgIdSHw" />
|
||
|
||
<script src="/sites/default/files/js/js_GM8kl6wk698qKTTwusj83bCoGHHtOZ1UinjY1sE_Qbk.js?scope=header&delta=0&language=en&theme=nist_www&include=eJxdjeEOgyAMhF9I10dqinTYCdQAyvb2A-eyxaQ_-l2vd4amBYu2WcH8dnzkwak6z0iR_KvIlOEqDFFywbs0zWqNXsliSS1EogNHn3OWwhLWpDvDVegth1ZmDtx61RtKGNSClUymBXuJy-EB59WQH88XmJkspy9irfXPwc_SH8GmbSV_O3HYhWvGxxZWDBw3OHjsPHZ-AyPAajY"></script>
|
||
|
||
</head>
|
||
<body class="node-1863706">
|
||
<a href="#main-content" class="visually-hidden focusable" data-elastic-exclude>
|
||
Skip to main content
|
||
</a>
|
||
|
||
<div class="dialog-off-canvas-main-canvas" data-off-canvas-main-canvas>
|
||
|
||
<!-- nist-index-ignore-start -->
|
||
<section data-elastic-exclude class="usa-banner" aria-label="Official government website">
|
||
<div class="usa-accordion">
|
||
<header class="usa-banner__header">
|
||
<div class="usa-banner__inner">
|
||
<div class="grid-col-auto">
|
||
<img class="usa-banner__header-flag" src="/libraries/nist-component-library/dist/img/us_flag_small.png" alt="U.S. flag">
|
||
</div>
|
||
<div class="grid-col-fill tablet:grid-col-auto">
|
||
<p class="usa-banner__header-text">An official website of the United States government</p>
|
||
<p class="usa-banner__header-action" aria-hidden="true">Here’s how you know</p>
|
||
</div>
|
||
<button class="usa-accordion__button usa-banner__button" aria-expanded="false" aria-controls="gov-banner-default">
|
||
<span class="usa-banner__button-text">Here’s how you know</span>
|
||
</button>
|
||
</div>
|
||
</header>
|
||
<div class="usa-banner__content usa-accordion__content" id="gov-banner-default">
|
||
<div class="grid-row grid-gap-lg">
|
||
<div class="usa-banner__guidance tablet:grid-col-6">
|
||
<img class="usa-banner__icon usa-media-block__img" src="/libraries/nist-component-library/dist/img/icon-dot-gov.svg" role="img" alt="" aria-hidden="true">
|
||
<div class="usa-media-block__body">
|
||
<p>
|
||
<strong>Official websites use .gov</strong>
|
||
<br/>
|
||
A <strong>.gov</strong> website belongs to an official government organization in the United States.
|
||
</p>
|
||
</div>
|
||
</div>
|
||
<div class="usa-banner__guidance tablet:grid-col-6">
|
||
<img class="usa-banner__icon usa-media-block__img" src="/libraries/nist-component-library/dist/img/icon-https.svg" role="img" alt="" aria-hidden="true">
|
||
<div class="usa-media-block__body">
|
||
<p>
|
||
<strong>Secure .gov websites use HTTPS</strong>
|
||
<br/>
|
||
A <strong>lock</strong> ( <span class="icon-lock">
|
||
<svg xmlns="http://www.w3.org/2000/svg" width="52" height="64" viewbox="0 0 52 64" class="usa-banner__lock-image" role="img" aria-labelledby="banner-lock-title banner-lock-description" focusable="false">
|
||
<title id="banner-lock-title">Lock</title>
|
||
<desc id="banner-lock-description">A locked padlock</desc><path fill="#000000" fill-rule="evenodd" d="M26 0c10.493 0 19 8.507 19 19v9h3a4 4 0 0 1 4 4v28a4 4 0 0 1-4 4H4a4 4 0 0 1-4-4V32a4 4 0 0 1 4-4h3v-9C7 8.507 15.507 0 26 0zm0 8c-5.979 0-10.843 4.77-10.996 10.712L15 19v9h22v-9c0-6.075-4.925-11-11-11z"/></svg>
|
||
</span>
|
||
) or <strong>https://</strong> means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
|
||
</p>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
</section>
|
||
<!-- nist-index-ignore-end -->
|
||
|
||
|
||
<div data-elastic-exclude>
|
||
<!-- nist-index-ignore-start -->
|
||
<div class="nist-print-header" style="display:none;">
|
||
<p class="nist-print-header__url">https://www.nist.gov/blogs/cybersecurity-insights/scalability-challenges-privacy-preserving-federated-learning</p>
|
||
<img class="nist-print-header__logo" width="289" height="38" src="/libraries/nist-component-library/dist/img/logo/nist_logo_sidestack.svg" alt="National Institute of Standards and Technology" />
|
||
</div>
|
||
|
||
|
||
<div class="usa-overlay"></div>
|
||
<header class="usa-header nist-header--www nist-header--minimal" role="banner">
|
||
<div class="usa-navbar">
|
||
<div class="usa-logo flex-fill">
|
||
<a href="/" title="National Institute of Standards and Technology" aria-label="Home">
|
||
<img src="/libraries/nist-component-library/dist/img/logo/logo.svg" alt="National Institute of Standards and Technology" width="300px" height="80px" />
|
||
</a>
|
||
</div>
|
||
<div class="usa-header__right grid-row flex-auto">
|
||
<div class="grid-col-fill nist-header__search-group">
|
||
|
||
<form class="usa-search usa-search--small"
|
||
accept-charset="UTF-8"
|
||
action="/search"
|
||
id="search_form"
|
||
method="get">
|
||
<div role="search">
|
||
<label class="usa-sr-only" for="search-form">Search NIST</label>
|
||
<input class="usa-input" id="search-form" type="search" name="s" placeholder="Search NIST" required="" maxlength="128">
|
||
<button class="usa-button" type="submit"><img src="/libraries/nist-component-library/dist/img/usa-icons-bg/search--white.svg" class="usa-search__submit-icon" alt="Search"></button>
|
||
</div>
|
||
</form>
|
||
</div>
|
||
<div class="grid-col-auto padding-left-1">
|
||
<button class="usa-menu-btn">Menu</button>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
|
||
|
||
|
||
|
||
<nav aria-label="Primary navigation" class="usa-nav">
|
||
<div class="usa-nav__inner">
|
||
<button class="usa-nav__close">Close</button>
|
||
<ul class="usa-nav__primary usa-accordion">
|
||
<li class="usa-nav__primary-item">
|
||
<a class="usa-nav__link" href="/publications">Publications</a>
|
||
</li>
|
||
<li class="usa-nav__primary-item">
|
||
<button class="usa-accordion__button usa-nav__link" aria-expanded="false" aria-controls="primary_menu-2"><span>What We Do</span></button>
|
||
<div id="primary_menu-2" class="usa-nav__submenu usa-megamenu">
|
||
<div class="grid-row">
|
||
<div class="tablet:grid-col-fill"><ul class="usa-nav__submenu-list">
|
||
<li class="usa-nav__submenu-item">
|
||
<a href="/topics" class="usa-nav__link">All Topics</a>
|
||
</li>
|
||
<li class="usa-nav__submenu-item">
|
||
<a href="/advanced-communications" class="usa-nav__link">Advanced communications</a>
|
||
</li>
|
||
<li class="usa-nav__submenu-item">
|
||
<a href="/artificial-intelligence" class="usa-nav__link">Artificial intelligence</a>
|
||
</li>
|
||
<li class="usa-nav__submenu-item">
|
||
<a href="/bioscience" class="usa-nav__link">Bioscience</a>
|
||
</li>
|
||
<li class="usa-nav__submenu-item">
|
||
<a href="/buildings-construction" class="usa-nav__link">Buildings and construction</a>
|
||
</li>
|
||
<li class="usa-nav__submenu-item">
|
||
<a href="/chemistry" class="usa-nav__link">Chemistry</a>
|
||
</li>
|
||
<li class="usa-nav__submenu-item">
|
||
<a href="/cybersecurity" class="usa-nav__link">Cybersecurity</a>
|
||
</li>
|
||
<li class="usa-nav__submenu-item">
|
||
<a href="/electronics" class="usa-nav__link">Electronics</a>
|
||
</li>
|
||
<li class="usa-nav__submenu-item">
|
||
<a href="/energy" class="usa-nav__link">Energy</a>
|
||
</li>
|
||
</ul></div><div class="column-break tablet:grid-col-fill"><ul class="usa-nav__submenu-list">
|
||
<li class="usa-nav__submenu-item">
|
||
<a href="/environment" class="usa-nav__link">Environment</a>
|
||
</li>
|
||
<li class="usa-nav__submenu-item">
|
||
<a href="/fire" class="usa-nav__link">Fire</a>
|
||
</li>
|
||
<li class="usa-nav__submenu-item">
|
||
<a href="/forensic-science" class="usa-nav__link">Forensic science</a>
|
||
</li>
|
||
<li class="usa-nav__submenu-item">
|
||
<a href="/health" class="usa-nav__link">Health</a>
|
||
</li>
|
||
<li class="usa-nav__submenu-item">
|
||
<a href="/information-technology" class="usa-nav__link">Information technology</a>
|
||
</li>
|
||
<li class="usa-nav__submenu-item">
|
||
<a href="/infrastructure" class="usa-nav__link">Infrastructure</a>
|
||
</li>
|
||
<li class="usa-nav__submenu-item">
|
||
<a href="/manufacturing" class="usa-nav__link">Manufacturing</a>
|
||
</li>
|
||
<li class="usa-nav__submenu-item">
|
||
<a href="/materials" class="usa-nav__link">Materials</a>
|
||
</li>
|
||
<li class="usa-nav__submenu-item">
|
||
<a href="/mathematics-statistics" class="usa-nav__link">Mathematics and statistics</a>
|
||
</li>
|
||
</ul></div><div class="column-break tablet:grid-col-fill"><ul class="usa-nav__submenu-list">
|
||
<li class="usa-nav__submenu-item">
|
||
<a href="/metrology" class="usa-nav__link">Metrology</a>
|
||
</li>
|
||
<li class="usa-nav__submenu-item">
|
||
<a href="/nanotechnology" class="usa-nav__link">Nanotechnology</a>
|
||
</li>
|
||
<li class="usa-nav__submenu-item">
|
||
<a href="/neutron-research" class="usa-nav__link">Neutron research</a>
|
||
</li>
|
||
<li class="usa-nav__submenu-item">
|
||
<a href="/performance-excellence" class="usa-nav__link">Performance excellence</a>
|
||
</li>
|
||
<li class="usa-nav__submenu-item">
|
||
<a href="/physics" class="usa-nav__link">Physics</a>
|
||
</li>
|
||
<li class="usa-nav__submenu-item">
|
||
<a href="/public-safety" class="usa-nav__link">Public safety</a>
|
||
</li>
|
||
<li class="usa-nav__submenu-item">
|
||
<a href="/quantum-information-science" class="usa-nav__link">Quantum information science</a>
|
||
</li>
|
||
<li class="usa-nav__submenu-item">
|
||
<a href="/resilience" class="usa-nav__link">Resilience</a>
|
||
</li>
|
||
<li class="usa-nav__submenu-item">
|
||
<a href="/standards" class="usa-nav__link">Standards</a>
|
||
</li>
|
||
<li class="usa-nav__submenu-item">
|
||
<a href="/transportation" class="usa-nav__link">Transportation</a>
|
||
</li>
|
||
</ul>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
</li>
|
||
<li class="usa-nav__primary-item">
|
||
<button class="usa-accordion__button usa-nav__link" aria-expanded="false" aria-controls="primary_menu-3"><span>Labs & Major Programs</span></button>
|
||
<div id="primary_menu-3" class="usa-nav__submenu usa-megamenu">
|
||
<div class="grid-row">
|
||
<div class="tablet:grid-col-fill"><ul class="usa-nav__submenu-list">
|
||
<li class="usa-nav__submenu-item">
|
||
<a href="/adlp" class="usa-nav__link">Assoc Director of Laboratory Programs</a>
|
||
</li>
|
||
<li class="usa-nav__submenu-item">
|
||
<a href="/laboratories" class="usa-nav__link">Laboratories</a>
|
||
<ul class="usa-nav__submenu-list">
|
||
<li>
|
||
<a href="/ctl" class="usa-nav__link">Communications Technology Laboratory</a>
|
||
</li>
|
||
<li>
|
||
<a href="/el" class="usa-nav__link">Engineering Laboratory</a>
|
||
</li>
|
||
<li>
|
||
<a href="/itl" class="usa-nav__link">Information Technology Laboratory</a>
|
||
</li>
|
||
<li>
|
||
<a href="/mml" class="usa-nav__link">Material Measurement Laboratory</a>
|
||
</li>
|
||
<li>
|
||
<a href="/pml" class="usa-nav__link">Physical Measurement Laboratory</a>
|
||
</li>
|
||
</ul>
|
||
</li>
|
||
</ul></div><div class="column-break tablet:grid-col-fill"><ul class="usa-nav__submenu-list">
|
||
<li class="usa-nav__submenu-item">
|
||
<a href="/user-facilities" class="usa-nav__link">User Facilities</a>
|
||
<ul class="usa-nav__submenu-list">
|
||
<li>
|
||
<a href="/ncnr" class="usa-nav__link">NIST Center for Neutron Research</a>
|
||
</li>
|
||
<li>
|
||
<a href="/cnst" class="usa-nav__link">CNST NanoFab</a>
|
||
</li>
|
||
</ul>
|
||
</li>
|
||
<li class="usa-nav__submenu-item">
|
||
<a href="/labs-major-programs/research-test-beds" class="usa-nav__link">Research Test Beds</a>
|
||
</li>
|
||
<li class="usa-nav__submenu-item">
|
||
<a href="/laboratories/projects-programs" class="usa-nav__link">Research Projects</a>
|
||
</li>
|
||
<li class="usa-nav__submenu-item">
|
||
<a href="/laboratories/tools-instruments" class="usa-nav__link">Tools & Instruments</a>
|
||
</li>
|
||
</ul></div><div class="column-break tablet:grid-col-fill"><ul class="usa-nav__submenu-list">
|
||
<li class="usa-nav__submenu-item">
|
||
<a href="/major-programs" class="usa-nav__link">Major Programs</a>
|
||
<ul class="usa-nav__submenu-list">
|
||
<li>
|
||
<a href="/baldrige" class="usa-nav__link">Baldrige Performance Excellence Program</a>
|
||
</li>
|
||
<li>
|
||
<a href="/chips" class="usa-nav__link">CHIPS for America Initiative</a>
|
||
</li>
|
||
<li>
|
||
<a href="/mep" class="usa-nav__link">Manufacturing Extension Partnership (MEP)</a>
|
||
</li>
|
||
<li>
|
||
<a href="/oam" class="usa-nav__link">Office of Advanced Manufacturing</a>
|
||
</li>
|
||
<li>
|
||
<a href="/spo" class="usa-nav__link">Special Programs Office</a>
|
||
</li>
|
||
<li>
|
||
<a href="/tpo" class="usa-nav__link">Technology Partnerships Office</a>
|
||
</li>
|
||
</ul>
|
||
</li>
|
||
</ul>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
</li>
|
||
<li class="usa-nav__primary-item">
|
||
<button class="usa-accordion__button usa-nav__link" aria-expanded="false" aria-controls="primary_menu-4"><span>Services & Resources</span></button>
|
||
<div id="primary_menu-4" class="usa-nav__submenu usa-megamenu">
|
||
<div class="grid-row">
|
||
<div class="tablet:grid-col-fill"><ul class="usa-nav__submenu-list">
|
||
<li class="usa-nav__submenu-item">
|
||
<a href="/content/standards-measurements" class="usa-nav__link">Standards and Measurements</a>
|
||
<ul class="usa-nav__submenu-list">
|
||
<li>
|
||
<a href="/calibrations" class="usa-nav__link">Calibration Services</a>
|
||
</li>
|
||
<li>
|
||
<a href="/nvlap" class="usa-nav__link">Laboratory Accreditation (NVLAP)</a>
|
||
</li>
|
||
<li>
|
||
<a href="/nist-quality-system" class="usa-nav__link">Quality System</a>
|
||
</li>
|
||
<li>
|
||
<a href="/srm" class="usa-nav__link">Standard Reference Materials (SRMs)</a>
|
||
</li>
|
||
<li>
|
||
<a href="/sri" class="usa-nav__link">Standard Reference Instruments (SRIs)</a>
|
||
</li>
|
||
<li>
|
||
<a href="/standardsgov" class="usa-nav__link">Standards.gov</a>
|
||
</li>
|
||
<li>
|
||
<a href="/pml/time-and-frequency-division/time-services" class="usa-nav__link">Time Services</a>
|
||
</li>
|
||
<li>
|
||
<a href="/pml/owm" class="usa-nav__link">Office of Weights and Measures</a>
|
||
</li>
|
||
</ul>
|
||
</li>
|
||
</ul></div><div class="column-break tablet:grid-col-fill"><ul class="usa-nav__submenu-list">
|
||
<li class="usa-nav__submenu-item">
|
||
<a href="/services-resources/software" class="usa-nav__link">Software</a>
|
||
</li>
|
||
<li class="usa-nav__submenu-item">
|
||
<a href="/data" class="usa-nav__link">Data</a>
|
||
<ul class="usa-nav__submenu-list">
|
||
<li>
|
||
<a href="https://webbook.nist.gov/chemistry/" class="usa-nav__link">Chemistry WebBook</a>
|
||
</li>
|
||
<li>
|
||
<a href="https://nvd.nist.gov/" class="usa-nav__link">National Vulnerability Database</a>
|
||
</li>
|
||
<li>
|
||
<a href="/pml/productsservices/physical-reference-data" class="usa-nav__link">Physical Reference Data</a>
|
||
</li>
|
||
<li>
|
||
<a href="/srd" class="usa-nav__link">Standard Reference Data (SRD)</a>
|
||
</li>
|
||
</ul>
|
||
</li>
|
||
<li class="usa-nav__submenu-item">
|
||
<a href="https://shop.nist.gov/" class="usa-nav__link">Storefront</a>
|
||
</li>
|
||
<li class="usa-nav__submenu-item">
|
||
<a href="/tpo" class="usa-nav__link">License & Patents</a>
|
||
</li>
|
||
</ul></div><div class="column-break tablet:grid-col-fill"><ul class="usa-nav__submenu-list">
|
||
<li class="usa-nav__submenu-item">
|
||
<a href="https://csrc.nist.gov/" class="usa-nav__link">Computer Security Resource Center (CSRC)</a>
|
||
</li>
|
||
<li class="usa-nav__submenu-item">
|
||
<a href="/nist-research-library" class="usa-nav__link">NIST Research Library</a>
|
||
</li>
|
||
</ul>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
</li>
|
||
<li class="usa-nav__primary-item">
|
||
<button class="usa-accordion__button usa-nav__link" aria-expanded="false" aria-controls="primary_menu-5"><span>News & Events</span></button>
|
||
<div id="primary_menu-5" class="usa-nav__submenu usa-megamenu">
|
||
<div class="grid-row">
|
||
<div class="tablet:grid-col-fill"><ul class="usa-nav__submenu-list">
|
||
<li class="usa-nav__submenu-item">
|
||
<a href="/news-events/news" class="usa-nav__link">News</a>
|
||
</li>
|
||
<li class="usa-nav__submenu-item">
|
||
<a href="/news-events/events" class="usa-nav__link">Events</a>
|
||
</li>
|
||
<li class="usa-nav__submenu-item">
|
||
<a href="/blogs" class="usa-nav__link">Blogs</a>
|
||
</li>
|
||
<li class="usa-nav__submenu-item">
|
||
<a href="/feature-stories" class="usa-nav__link">Feature Stories</a>
|
||
</li>
|
||
<li class="usa-nav__submenu-item">
|
||
<a href="/awards" class="usa-nav__link">Awards</a>
|
||
</li>
|
||
</ul></div><div class="column-break tablet:grid-col-fill"><ul class="usa-nav__submenu-list">
|
||
<li class="usa-nav__submenu-item">
|
||
<a href="/video-gallery" class="usa-nav__link">Video Gallery</a>
|
||
</li>
|
||
<li class="usa-nav__submenu-item">
|
||
<a href="/image-gallery" class="usa-nav__link">Image Gallery</a>
|
||
</li>
|
||
<li class="usa-nav__submenu-item">
|
||
<a href="/pao/media-contacts" class="usa-nav__link">Media Contacts</a>
|
||
</li>
|
||
</ul>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
</li>
|
||
<li class="usa-nav__primary-item">
|
||
<button class="usa-accordion__button usa-nav__link" aria-expanded="false" aria-controls="primary_menu-6"><span>About NIST</span></button>
|
||
<div id="primary_menu-6" class="usa-nav__submenu usa-megamenu">
|
||
<div class="grid-row">
|
||
<div class="tablet:grid-col-fill"><ul class="usa-nav__submenu-list">
|
||
<li class="usa-nav__submenu-item">
|
||
<a href="/about-nist" class="usa-nav__link">About Us</a>
|
||
<ul class="usa-nav__submenu-list">
|
||
<li>
|
||
<a href="/director/leadership" class="usa-nav__link">Leadership</a>
|
||
</li>
|
||
<li>
|
||
<a href="/director/nist-organization-structure" class="usa-nav__link">Organization Structure</a>
|
||
</li>
|
||
<li>
|
||
<a href="/about-nist/budget-planning" class="usa-nav__link">Budget & Planning</a>
|
||
</li>
|
||
</ul>
|
||
</li>
|
||
<li class="usa-nav__submenu-item">
|
||
<a href="/about-nist/contact-us" class="usa-nav__link">Contact Us</a>
|
||
</li>
|
||
<li class="usa-nav__submenu-item">
|
||
<a href="/about-nist/visit" class="usa-nav__link">Visit</a>
|
||
</li>
|
||
<li class="usa-nav__submenu-item">
|
||
<a href="/careers" class="usa-nav__link">Careers</a>
|
||
<ul class="usa-nav__submenu-list">
|
||
<li>
|
||
<a href="/iaao/academic-affairs-office" class="usa-nav__link">Student programs</a>
|
||
</li>
|
||
</ul>
|
||
</li>
|
||
</ul></div><div class="column-break tablet:grid-col-fill"><ul class="usa-nav__submenu-list">
|
||
<li class="usa-nav__submenu-item">
|
||
<a href="/about-nist/work-nist" class="usa-nav__link">Work with NIST</a>
|
||
</li>
|
||
<li class="usa-nav__submenu-item">
|
||
<a href="/history" class="usa-nav__link">History</a>
|
||
<ul class="usa-nav__submenu-list">
|
||
<li>
|
||
<a href="http://nistdigitalarchives.contentdm.oclc.org/" class="usa-nav__link">NIST Digital Archives</a>
|
||
</li>
|
||
<li>
|
||
<a href="/nist-museum" class="usa-nav__link">NIST Museum</a>
|
||
</li>
|
||
<li>
|
||
<a href="/nist-and-nobel" class="usa-nav__link">NIST and the Nobel</a>
|
||
</li>
|
||
</ul>
|
||
</li>
|
||
<li class="usa-nav__submenu-item">
|
||
<a href="/education" class="usa-nav__link">Educational Resources</a>
|
||
</li>
|
||
</ul>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
</li>
|
||
</ul>
|
||
</div>
|
||
</nav>
|
||
|
||
|
||
|
||
|
||
</header>
|
||
<!-- nist-index-ignore-end -->
|
||
</div>
|
||
|
||
<div class="grid-container">
|
||
|
||
|
||
|
||
|
||
</div>
|
||
|
||
|
||
|
||
|
||
|
||
<div
|
||
id="block-nist-www-content" class="nist-block"
|
||
>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<section
|
||
class="nist-page__content usa-section clearfix"
|
||
>
|
||
|
||
<a id="main-content" tabindex="-1"></a>
|
||
|
||
<div
|
||
class="nist-page__region nist-page__region--content-top-full"
|
||
>
|
||
|
||
<div
|
||
class="nist-block"
|
||
>
|
||
|
||
|
||
<div class="entity-reference">
|
||
|
||
<div class="nist-blog-header nist-blog-header--darkgray nist-blog-header--inner">
|
||
<div class="nist-blog-header__bkgrd">
|
||
<div class="nist-blog-header__main grid-container">
|
||
<div class="grid-row">
|
||
<h2 class="nist-blog-header__title">
|
||
<a href="/blogs/cybersecurity-insights"> Cybersecurity Insights
|
||
</a>
|
||
</h2>
|
||
<div class="nist-blog-header__tagline">
|
||
<p class="text">a NIST blog</p>
|
||
|
||
</div>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
|
||
|
||
</div>
|
||
|
||
</div>
|
||
|
||
<div class="grid-container margin-top-4">
|
||
<div
|
||
class="nist-page__region nist-page__region--content-top"
|
||
>
|
||
|
||
<div
|
||
class="nist-block"
|
||
>
|
||
|
||
|
||
<h1 class="nist-page__title">Scalability Challenges in Privacy-Preserving Federated Learning</h1>
|
||
|
||
|
||
</div>
|
||
|
||
<div
|
||
class="font-body-md"
|
||
>
|
||
|
||
|
||
|
||
<div class="daterange"><time datetime="2024-10-08T12:00:00Z">October 8, 2024</time>
|
||
</div>
|
||
|
||
</div>
|
||
<div
|
||
class="nist-block"
|
||
>
|
||
|
||
|
||
|
||
<span>By: </span>
|
||
<a href="/blogs/cybersecurity-insights/authors/joseph-near" hreflang="en">Joseph Near</a>, <a href="/blogs/cybersecurity-insights/authors/david-darais" hreflang="en">David Darais</a> and <a href="/blogs/cybersecurity-insights/authors/mark-durkee" hreflang="en">Mark Durkee</a>
|
||
|
||
</div>
|
||
|
||
<div
|
||
class="nist-block"
|
||
>
|
||
|
||
|
||
<!-- nist-index-ignore-start -->
|
||
<div data-elastic-exclude class="nist-block nist-social__wrapper">
|
||
<h2 class="nist-social__title">Share</h2>
|
||
<div class="social-media-sharing">
|
||
<div class="nist-social__wrapper--share">
|
||
<div>
|
||
<a target="_blank" rel="noopener" href="https://www.facebook.com/share.php?u=https://www.nist.gov/blogs/cybersecurity-insights/scalability-challenges-privacy-preserving-federated-learning"
|
||
title="Facebook" class="nist-social nist-social--facebook-gray">
|
||
<span>Facebook</span>
|
||
</a>
|
||
</div>
|
||
<div>
|
||
<a target="_blank" rel="noopener" href="https://www.linkedin.com/shareArticle?mini=true&url=https://www.nist.gov/blogs/cybersecurity-insights/scalability-challenges-privacy-preserving-federated-learning&source=https://www.nist.gov/blogs/cybersecurity-insights/scalability-challenges-privacy-preserving-federated-learning"
|
||
title="Linkedin" class="nist-social nist-social--linkedin-gray">
|
||
<span>Linkedin</span>
|
||
</a>
|
||
</div>
|
||
<div>
|
||
<a target="_blank" rel="noopener" href="https://x.com/intent/tweet?url=https://www.nist.gov/blogs/cybersecurity-insights/scalability-challenges-privacy-preserving-federated-learning&status=https://www.nist.gov/blogs/cybersecurity-insights/scalability-challenges-privacy-preserving-federated-learning"
|
||
title="X.com" class="nist-social nist-social--x-gray">
|
||
<span>X.com</span>
|
||
</a>
|
||
</div>
|
||
<div>
|
||
<a href="mailto:?subject=NIST.gov&body=Check out this site https://www.nist.gov/blogs/cybersecurity-insights/scalability-challenges-privacy-preserving-federated-learning"
|
||
title="Email" class="nist-social nist-social--envelope-gray">
|
||
<span>Email</span>
|
||
</a>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
<!-- nist-index-ignore-end -->
|
||
|
||
|
||
</div>
|
||
|
||
</div>
|
||
</div>
|
||
|
||
<div class="grid-container margin-top-4">
|
||
<div class="grid-row grid-gap-6">
|
||
|
||
|
||
|
||
<div
|
||
class="nist-page__region nist-page__region--content tablet-lg:grid-col-8"
|
||
>
|
||
|
||
<div
|
||
class="nist-block"
|
||
>
|
||
|
||
|
||
<div class="text-with-summary">
|
||
|
||
|
||
|
||
<div class="nist-callout"><p><span lang="EN">This post is part of a series on privacy-preserving federated learning. The series is a collaboration between NIST and the UK government’s Responsible Technology Adoption Unit (RTA), previously known as the Centre for Data Ethics and Innovation. Learn more and read all the posts published to date at </span><a href="https://www.nist.gov/itl/applied-cybersecurity/privacy-engineering/collaboration-space/blog-series/privacy-preserving"><span lang="EN">NIST’s Privacy Engineering Collaboration Space</span></a><span lang="EN"> or </span><a href="https://rtau.blog.gov.uk/tag/petsblogseries/"><span lang="EN">RTA’s blog</span></a><span lang="EN">. </span></p></div><p><strong>Introduction</strong></p><p>In this post, we talk with <a href="https://cgi.csc.liv.ac.uk/~xiaowei/"><span>Dr. Xiaowei Huang</span></a><span> and </span><a href="https://cgi.csc.liv.ac.uk/~yidong/"><span>Dr. Yi Dong</span></a><span> (University of Liverpool), </span><a href="https://datasciencecampus.ons.gov.uk/author/mat-weldon/"><span>Dr. Mat Weldon</span></a><span> (UK Office of National Statistics (ONS)),</span> and <a href="https://sikhapentyala.github.io/">Sikha Pentyala</a> (University of Washington Tacoma), who were winners in the <a href="https://www.nist.gov/itl/applied-cybersecurity/privacy-engineering/collaboration-space/challenges/us-uk-pets-prize"><span>UK-US PETs Prize Challenges</span></a><span>. We discuss</span> scalability challenges and solutions in privacy-preserving federated learning (PPFL). Traditional federated learning enables scaling to extremely large training datasets by leveraging distributed computing power; adding privacy-preserving techniques can introduce new scalability challenges specific to PPFL.</p><p><strong>Challenges of Scaling Up</strong></p><p>A major challenge of scaling PPFL systems to large datasets and many clients comes from the computational challenges of the cryptography used to implement PPFL defenses. Techniques like fully-homomorphic encryption (FHE) and multiparty computation (MPC) can protect sensitive computations, but often introduce significant performance overhead. In addition, practical PPFL systems often need to work with heterogeneous clients that have different data and computational abilities. The UK-US Prize Challenges were designed to not only test whether solutions offered a strong level of privacy, but also to establish whether they could achieve performance that was practical in real world applications at scale. We asked some of the winners about the scalability challenges that they had to address, and about how the way data is distributed impacts the solutions.</p><p><strong>Authors: How does the distribution of data affect the ability of PPFL systems to scale up?</strong></p><p><strong>Sikha Pentyala, team PPMLHuskies:</strong> One of the biggest gaps is developing general defense techniques for FL with arbitrary data distribution scenarios. This includes data that is horizontally distributed, such as data across different hospitals who each have their own patients, as well as data that is vertically distributed such as in scenarios where a patient's data is distributed across multiple entities (hospitals, companies, labs, etc.). While current literature primarily focuses on horizontal distribution scenarios, less focus has been on vertical or arbitrary distributions. Solutions based on cryptography, such as Secure Multi-Party Computation and Homomorphic Encryption, do work for arbitrary partitions but incur significant computational costs. Developing more efficient algorithms, protocols and tools capable of handling large-scale datasets and complex models is crucial for practical applications with arbitrary partitions.</p><p><strong>Authors: How do differences between clients impact the performance of PPFL systems?</strong></p><p><strong>Sikha Pentyala, team PPMLHuskies: </strong>FL in a heterogeneous cross-device setting can bring additional engineering challenges, in terms of model versioning and synchronization. Client selection sampling algorithms would require access to device configurations, which makes achieving both private and fair sampling of clients challenging.</p><p><strong>Challenges of Scaling Down</strong></p><p>Our discussions with winning teams from the <span>UK-US PETs Prize Challenges also highlighted a second challenge of adding privacy-preserving technologies to federated learning systems: PPFL systems often perform </span><em><span>better</span></em><span> when they have access to </span><em><span>more data</span></em><span>. </span></p><p><strong>Authors: Are there additional challenges in the context of deploying PPFL systems on smaller datasets or federations?</strong></p><p><strong>Dr. Mat Weldon, ONS: </strong><span> </span>Federated learning has a reverse scalability challenge: there are methods that work well enough on large chunks of data, that don’t scale well to smaller data. Differential privacy is one such example, An active area of research is how to achieve performant ‘local’ differential privacy at the level of a single record. </p><p>Currently the dominant output privacy method for machine learning is Differentially Private Stochastic Gradient Descent (DP-SGD). However, DP-SGD is very inefficient, in the sense that it blurs model updates (gradients) so much that very large quantities of data are needed to achieve a satisfactory level of performance. </p><p><strong>Dr. Xiaowei Huang and Dr. Yi Dong, University of Liverpool: </strong>In our previous FL experiments, we observed a trade-off between the number of clients and the final accuracy of the trained models. This trade-off varies depending on the model being trained and the dataset used. It's not a straightforward case where increasing the number of participants always leads to better results, nor does reducing them necessarily improve outcomes. There appears to be an optimal point in terms of the number of parties involved in the training process, which maximises the training accuracy. However, it is not easy to find such an optimal point.</p><p><strong>Challenges of Data Coordination and Data Quality</strong></p><p>Finally, a specific challenge of PPFL is the fact that no single participant has access to all of the data, so it is not possible to perform a global evaluation of the quality and properties of the data. For example, some participants may contribute low-quality data to the training process or may use a different data format than the other participants. Since PPFL systems are designed to protect the data, it’s not easy to discover these kinds of problems before training begins.</p><p><strong>Authors: Are there data quality and coordination challenges specific to PPFL systems?</strong></p><p><strong>Dr. Xiaowei Huang and Dr. Yi Dong, University of Liverpool</strong>: The second challenge is the accurate detection of potential attackers. Due to the privacy-friendly nature of PPFL and the limited information available about the users' data due to federated learning, distinguishing between malicious attacks and poor updates becomes difficult. It's challenging to identify and understand the user behind the data, making it hard to efficiently exclude potential attackers from the learning process.</p><p><strong>Dr. Mat Weldon, ONS: </strong>In federated learning, the need for privacy leads to data quality challenges around aligning data specifications and definitions. If the federated learning architecture were designed at the same time as the data collection this wouldn’t be such an issue. But in most cases the data will have been collected by different owners, possibly to different specifications. In these applications, the biggest obstacle to data quality will be aligning data specifications and definitions in an eyes-off setting, without being able to manually troubleshoot problems.</p><p>For vertical federated learning applications, such as financial fraud detection, data specification alignment issues such as this will have an especially large impact on the accuracy of record matching, making robust privacy-preserving record linkage (PPRL) methods even more important.</p><p><strong>Meeting the Challenge</strong></p><p>Winning solutions in the UK-US PETs Prize Challenges highlighted recent developments in PPFL research that can help to address all three challenges described earlier. For example, to address the scalability challenges of PPML on vertically-partitioned data, the Scarlet Pets solution combined a Bloom filter with lightweight cryptography for aggregation (as <a href="https://www.nist.gov/blogs/cybersecurity-insights/protecting-model-updates-privacy-preserving-federated-learning-part-two">described in our earlier post</a>) to produce a system that scaled to many clients in the context of vertically-distributed data. In the context of horizontally-distributed data, <a href="https://research.google/blog/advances-in-private-training-for-production-on-device-language-models/">deployments like Google’s</a> have demonstrated the feasibility of current techniques across thousands of devices.</p><p><a name="_Int_wvJaUydZ">To address the challenge of model accuracy under PPFL, ongoing research in the field of differential privacy is investigating methods for reducing the impact of noise on trained models.</a> For example, pre-training on public data is now common in centralized machine learning, though it was not used in the UK-US PETs Prize Challenges; future PPFL systems can likely improve accuracy significantly by leveraging this idea.</p><p>To address the challenge of data coordination, recent research has begun to explore approaches for <a href="https://www.usenix.org/conference/usenixsecurity23/presentation/bell"><em>secure input validation</em></a><em> </em>and <a href="https://link.springer.com/chapter/10.1007/978-3-030-63076-8_11"><em>data valuation</em></a>. These techniques can help ensure that all participants provide data with the right format and sufficient quality to help improve the trained model, without revealing the data. Examples include cryptography for input validation and new defenses to protect against Byzantine participants (who may perform arbitrary malicious actions at any point).</p><p><strong>Coming up Next...</strong></p><p>Our next post will focus on the practical challenges associated with the entire data pipeline required to deploy a PPFL solution.</p>
|
||
|
||
</div>
|
||
|
||
</div>
|
||
|
||
<div
|
||
class="nist-block"
|
||
>
|
||
|
||
<h2
|
||
class="nist-block__title"
|
||
>About the author</h2>
|
||
|
||
<div class="nist-field nist-field--label-hidden entity-reference">
|
||
<div class="nist-field__items">
|
||
<div class="nist-field__item">
|
||
|
||
<article
|
||
about="/blogs/cybersecurity-insights/authors/joseph-near" class="nist-teaser"
|
||
>
|
||
<div class="nist-teaser__image">
|
||
<div class="entity-reference"> <a href="/blogs/cybersecurity-insights/authors/joseph-near" hreflang="en"><img loading="lazy" src="/sites/default/files/styles/thumbnail/public/images/2023/12/06/Jo%20Near.jpg?itok=r50VF0v7" width="86" height="100" alt="Joseph Near" typeof="foaf:Image" />
|
||
|
||
</a>
|
||
</div>
|
||
|
||
</div>
|
||
<div class="nist-teaser__content-wrapper">
|
||
<header>
|
||
<h3 class="nist-teaser__title"><a href="/blogs/cybersecurity-insights/authors/joseph-near"><span>Joseph Near</span>
|
||
</a></h3>
|
||
|
||
</header>
|
||
<div class="nist-teaser__content">
|
||
<div class="text-with-summary"><p class="MsoBodyText"><span><span><strong>Joseph Near</strong> is an assistant professor of computer science at the University of Vermont who supports NIST as a moderator for the Privacy Engineering Collaboration Space. His research interests include data privacy, computer security, and programming languages. Joseph received his B.S. in computer science from Indiana University, and his M.S. and Ph.D. in computer science from MIT.</span></span></p></div>
|
||
|
||
</div>
|
||
</div>
|
||
</article>
|
||
</div>
|
||
<div class="nist-field__item">
|
||
|
||
<article
|
||
about="/blogs/cybersecurity-insights/authors/david-darais" class="nist-teaser"
|
||
>
|
||
<div class="nist-teaser__image">
|
||
<div class="entity-reference"> <a href="/blogs/cybersecurity-insights/authors/david-darais" hreflang="en"><img loading="lazy" src="/sites/default/files/styles/thumbnail/public/images/2023/12/06/darais-new-640%2B240.jpg?itok=ogWja4KM" width="100" height="100" alt="David Darais" typeof="foaf:Image" />
|
||
|
||
</a>
|
||
</div>
|
||
|
||
</div>
|
||
<div class="nist-teaser__content-wrapper">
|
||
<header>
|
||
<h3 class="nist-teaser__title"><a href="/blogs/cybersecurity-insights/authors/david-darais"><span>David Darais</span>
|
||
</a></h3>
|
||
|
||
</header>
|
||
<div class="nist-teaser__content">
|
||
<div class="text-with-summary"><p><span><span><span><span><span><span><span><span><strong>David Darais</strong> is a Principal Scientist at Galois, Inc. and supports NIST as a moderator for the Privacy Engineering Collaboration Space. David's research focuses on tools for achieving reliable software in critical, security-sensitive, and privacy-sensitive systems. David received his B.S. from the University of Utah, M.S. from Harvard University and Ph.D. from the University of Maryland.</span></span></span></span></span></span></span></span></p></div>
|
||
|
||
</div>
|
||
</div>
|
||
</article>
|
||
</div>
|
||
<div class="nist-field__item">
|
||
|
||
<article
|
||
about="/blogs/cybersecurity-insights/authors/mark-durkee" class="nist-teaser"
|
||
>
|
||
<div class="nist-teaser__image">
|
||
<div class="entity-reference"> <a href="/blogs/cybersecurity-insights/authors/mark-durkee" hreflang="en"><img loading="lazy" src="/sites/default/files/styles/thumbnail/public/images/2024/01/24/Mark%20Durkee%20.png?itok=co4ZojG9" width="75" height="100" alt="Mark Durkee " typeof="foaf:Image" />
|
||
|
||
</a>
|
||
</div>
|
||
|
||
</div>
|
||
<div class="nist-teaser__content-wrapper">
|
||
<header>
|
||
<h3 class="nist-teaser__title"><a href="/blogs/cybersecurity-insights/authors/mark-durkee"><span>Mark Durkee</span>
|
||
</a></h3>
|
||
|
||
</header>
|
||
<div class="nist-teaser__content">
|
||
<div class="text-with-summary"><p><span><span><em><span><span>Mark Durkee is Head of Data & Technology at the Centre for Data Ethics and Innovation (CDEI). He leads a portfolio of work including the CDEI's work on the Algorithmic Transparency Recording Standard, privacy enhancing technologies, and a broader programme of work focused on promoting responsible access to data. He previously led CDEI's independent review into bias in algorithmic decision-making. He has spent over a decade working in a variety of technology strategy, architecture and cyber security roles within the UK government, and previously worked as a software engineer and completed a PhD in Theoretical Physics.</span></span></em></span></span></p></div>
|
||
|
||
</div>
|
||
</div>
|
||
</article>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
|
||
|
||
</div>
|
||
|
||
|
||
<div
|
||
class="nist-block no-print"
|
||
>
|
||
|
||
<h2
|
||
class="nist-block__title"
|
||
>Comments</h2>
|
||
|
||
<section>
|
||
|
||
|
||
|
||
<h2>Add new comment</h2>
|
||
<link rel="stylesheet" media="all" href="/sites/default/files/css/css_Lx5yvw0vUi4TN7C0L-5Rdrp4Q049mXEKn-dXREWOtBs.css?delta=0&language=en&theme=nist_www&include=eJxLzCvJTMov0U-E0Hpp-UW5OsmJBSXJGYn6SYnFqTppmTklqUX6KUWlBYk5ehAeAD47FNs&exclude=eJx1UAGOwyAM-xAdT0IBsi5bIBXQ9nqvv9B2WjXpJISwE-zEHsLLNdEzWf95u2c1_p8SBclmFBkZHWTgrVGo9pswmWpzd1IuyppZILpWVIbyaEc4ypUaUpqKLGi_iT7CzrUHJlRnYQ_FJYk2UgWvwkz5ZepWGyadsOLeb0cWD3x9D6eUfSBELG_o1nW9dl9wb8Gf1g1sLPMEfDuhCZIS5vamTzj4bVgIVyyHU4Ix052CWSiiOEweo6aBHC3D7zb0PIym07DYAFMjzbRKIGCXMBL0ffQ3wyZzc7pw0EjKZiVjEDbdqtr9vmkiM-NBueecJlXI81EcOh46_myYKBTpQf8BO5rHtg" />
|
||
<form class="comment-comment-node-blog-form comment-form usa-form antibot" novalidate="novalidate" data-drupal-selector="comment-form" data-action="/comment/reply/node/1863706/comment_node_blog" action="/antibot" method="post" id="comment-form" accept-charset="UTF-8">
|
||
<noscript>
|
||
<div class="antibot-no-js antibot-message antibot-message-warning">You must have JavaScript enabled to use this form.</div>
|
||
</noscript>
|
||
<div class="form-item js-form-item form-type-textfield js-form-type-textfield form-item-name js-form-item-name">
|
||
<label for="edit-name" class="usa-label">
|
||
Your name
|
||
</label>
|
||
|
||
|
||
<input data-drupal-default-value="Anonymous" data-drupal-selector="edit-name" type="text" id="edit-name" name="name" value="" size="30" maxlength="60" class="form-text usa-input" />
|
||
|
||
|
||
|
||
</div>
|
||
<input data-drupal-selector="form-0nksznz3qgo0haulpsw3-ml0fivcghz5uagb54mjvoe" type="hidden" name="form_build_id" value="form-0NkSzNZ3qgO0HAulpSw3_ML0fiVcgHz5uAGB54mjVOE" class="usa-input" /><input data-drupal-selector="edit-comment-comment-node-blog-form" type="hidden" name="form_id" value="comment_comment_node_blog_form" class="usa-input" /><input data-drupal-selector="edit-antibot-key" type="hidden" name="antibot_key" value="" class="usa-input" /><div class="field--type-text-long field--name-comment-body field--widget-text-textarea js-form-wrapper form-wrapper" data-drupal-selector="edit-comment-body-wrapper" id="edit-comment-body-wrapper"> <div class="js-text-format-wrapper js-form-item form-item">
|
||
<div class="form-item js-form-item form-type-textarea js-form-type-textarea form-item-comment-body-0-value js-form-item-comment-body-0-value">
|
||
<label for="edit-comment-body-0-value" class="usa-label form-required">
|
||
Comment
|
||
<span class="usa-label--required"> <span class="usa-sr-only">Required</span>*</span></label>
|
||
|
||
|
||
<div class="form-textarea-wrapper">
|
||
<textarea class="js-text-full text-full form-textarea required usa-textarea resize-vertical" data-entity_embed-host-entity-langcode="en" data-media-embed-host-entity-langcode="en" data-drupal-selector="edit-comment-body-0-value" id="edit-comment-body-0-value" name="comment_body[0][value]" rows="5" cols="60" placeholder="" required="required" aria-required="true"></textarea>
|
||
</div>
|
||
|
||
|
||
|
||
|
||
</div>
|
||
<div class="js-filter-wrapper filter-wrapper hidden js-form-wrapper form-wrapper" data-drupal-selector="edit-comment-body-0-format" id="edit-comment-body-0-format"><div class="js-filter-guidelines filter-guidelines js-form-wrapper form-wrapper" data-drupal-selector="edit-comment-body-0-format-guidelines" id="edit-comment-body-0-format-guidelines"><div data-drupal-format-id="plain_text">
|
||
<h4>Plain text</h4>
|
||
|
||
|
||
|
||
<ul>
|
||
<li>No HTML tags allowed.</li>
|
||
<li>Web page addresses and email addresses turn into links automatically.</li>
|
||
<li>Lines and paragraphs break automatically.</li>
|
||
</ul>
|
||
|
||
|
||
|
||
</div>
|
||
</div>
|
||
</div>
|
||
|
||
</div>
|
||
|
||
</div>
|
||
|
||
|
||
<fieldset data-drupal-selector="edit-captcha" class="captcha captcha-type-challenge--image">
|
||
<legend class="captcha__title js-form-required form-required">
|
||
CAPTCHA
|
||
</legend>
|
||
<div class="captcha__element">
|
||
<input data-drupal-selector="edit-captcha-sid" type="hidden" name="captcha_sid" value="652310696" class="usa-input" /><input data-drupal-selector="edit-captcha-token" type="hidden" name="captcha_token" value="SKdrC2eohRBV-xk3Tz8ik_ErEbxZ3tIexf2VbgtP_BU" class="usa-input" /><div class="captcha__image-wrapper js-form-wrapper form-wrapper" data-drupal-selector="edit-captcha-image-wrapper" id="edit-captcha-image-wrapper"><img data-drupal-selector="edit-captcha-image" src="/image-captcha-generate/652310696/1741101716" width="180" height="60" alt="Image CAPTCHA" title="Image CAPTCHA" loading="lazy" typeof="foaf:Image" />
|
||
</div>
|
||
<div class="form-item js-form-item form-type-textfield js-form-type-textfield form-item-captcha-response js-form-item-captcha-response">
|
||
<label for="edit-captcha-response" class="usa-label form-required">
|
||
What code is in the image?
|
||
<span class="usa-label--required"> <span class="usa-sr-only">Required</span>*</span></label>
|
||
|
||
|
||
<input autocomplete="off" data-drupal-selector="edit-captcha-response" aria-describedby="edit-captcha-response--description" type="text" id="edit-captcha-response" name="captcha_response" value="" size="15" maxlength="128" class="form-text required usa-input" required="required" aria-required="true" />
|
||
|
||
|
||
|
||
<div id="edit-captcha-response--description" class="description help-block">
|
||
Enter the characters shown in the image.
|
||
</div>
|
||
</div>
|
||
|
||
</div>
|
||
<div class="captcha__description description">This question is for testing whether or not you are a human visitor and to prevent automated spam submissions.</div>
|
||
</fieldset>
|
||
<div data-drupal-selector="edit-actions" class="form-actions js-form-wrapper form-wrapper" id="edit-actions"><input data-drupal-selector="edit-submit" type="submit" id="edit-submit" name="op" value="Save" class="button button--primary js-form-submit form-submit usa-button" /></div>
|
||
|
||
<div class="comments__disclaimer padding-top-2">
|
||
<em>Please be respectful when posting comments. We will post all comments without editing as long as they are appropriate for a public, family friendly website, are on topic and do not contain profanity, personal attacks, misleading or false information/accusations or promote specific commercial products, services or organizations. Comments that violate our comment policy or include links to non-government organizations/web pages will not be posted.</em>
|
||
</div>
|
||
</form>
|
||
|
||
|
||
</section>
|
||
|
||
|
||
</div>
|
||
|
||
|
||
</div>
|
||
|
||
<aside class="nist-page__region nist-page__region--sidebar-second tablet-lg:grid-col-4">
|
||
|
||
<div>
|
||
|
||
<div
|
||
class="nist-block"
|
||
>
|
||
|
||
|
||
|
||
<div>
|
||
<div about="/blogs/cybersecurity-insights">
|
||
|
||
|
||
|
||
<div
|
||
class="views-exposed-form usa-form filters nist-block" novalidate="novalidate" data-drupal-selector="views-exposed-form-search-blog-cybersecurity-insights-search-page"
|
||
>
|
||
|
||
<h2
|
||
class="nist-block__title"
|
||
>Search</h2>
|
||
|
||
<form action="/blogs/cybersecurity-insights/search" method="get" id="views-exposed-form-search-blog-cybersecurity-insights-search-page" accept-charset="UTF-8" class="usa-form">
|
||
<div class="form-item js-form-item form-type-textfield js-form-type-textfield form-item-k js-form-item-k form-no-label">
|
||
|
||
|
||
<input placeholder="Search this blog" data-drupal-selector="edit-k" type="text" id="edit-k" name="k" value="" size="30" maxlength="128" class="form-text usa-input" />
|
||
|
||
|
||
|
||
<div id="edit-k--description" class="description help-block">
|
||
Put exact phrase in quotes (e.g., "information technology")
|
||
</div>
|
||
</div>
|
||
<div class="grid-col-12 form-actions js-form-wrapper form-wrapper" data-drupal-selector="edit-actions" id="edit-actions"><input data-drupal-selector="edit-submit-search-blog" type="submit" id="edit-submit-search-blog" value="Search" class="button js-form-submit form-submit usa-button" /></div>
|
||
|
||
|
||
</form>
|
||
|
||
|
||
</div>
|
||
<div
|
||
class="nist-block no-print"
|
||
>
|
||
|
||
<h2
|
||
class="nist-block__title"
|
||
>Email alerts</h2>
|
||
|
||
<div class="text-long"><p>Sign up below to receive Cybersecurity Insights blog updates.</p>
|
||
<form action="https://public.govdelivery.com/accounts/USNIST/subscribers/qualify" accept-charset="UTF-8" method="post">
|
||
<input name="utf8" type="hidden" value="✓">
|
||
<input type="hidden" name="authenticity_token" value="umng6itSRmNK2AM4clGhRFfjURNr8Xq93Wj+SgyY3mzPrAiisJN3Hm4xl+o5D5KH7uXFJ4nQ/OqkKO3CG8H0Vw==">
|
||
<input type="hidden" name="topic_id" id="topic_id" value="USNIST_213">
|
||
<div class="grid-row grid-gap-1">
|
||
<div class="tablet:grid-col-8">
|
||
<label class="usa-sr-only" for="email">Enter Email Address</label>
|
||
<input class="usa-input" type="text" name="email" id="email" title="email">
|
||
</div>
|
||
<div class="tablet:grid-col-4">
|
||
<input type="submit" name="commit" value="Sign Up" class="usa-button margin-top-1">
|
||
</div>
|
||
</div>
|
||
</form></div>
|
||
|
||
|
||
</div>
|
||
<div
|
||
class="nist-block no-print"
|
||
>
|
||
|
||
<h2
|
||
class="nist-block__title"
|
||
>Stay Connected</h2>
|
||
|
||
|
||
|
||
<div><a href="https://www.x.com/nistcyber" class="nist-social nist-social--x" title="X (Twitter)" ><span>X (Twitter)</span></a><a href="https://public.govdelivery.com/accounts/USNIST/subscriber/new?topic_id=USNIST_213" class="nist-social nist-social--envelope" title="GovDelivery" ><span>GovDelivery</span></a></div>
|
||
|
||
</div>
|
||
<div
|
||
class="views-element-container nist-block no-print"
|
||
>
|
||
|
||
<h2
|
||
class="nist-block__title"
|
||
>Categories</h2>
|
||
|
||
<div><div class="js-view-dom-id-e44aebfb67a43ef22ef5127ebcc7878fe0d004b59013e3e1bdd35a148a982e6b">
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<div>
|
||
<select class="usa-select ViewsJumpMenu js-viewsJumpMenu" title="-- Choose --" id="blog-categories-block-2-jump-menu">
|
||
<option>-- Choose --</option>
|
||
<option data-url="/cybersecurity-insights-categories/events-and-workshops">Events and Workshops</option>
|
||
<option data-url="/cybersecurity-insights-categories/implementation">Implementation</option>
|
||
<option data-url="/cybersecurity-insights-categories/measurement-science">Measurement Science</option>
|
||
<option data-url="/cybersecurity-insights-categories/multi-factor-authentication">Multi Factor Authentication</option>
|
||
<option data-url="/cybersecurity-insights-categories/partnerships">Partnerships</option>
|
||
<option data-url="/cybersecurity-insights-categories/publications">Publications</option>
|
||
</select>
|
||
</div>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
</div>
|
||
</div>
|
||
|
||
|
||
</div>
|
||
|
||
|
||
</div>
|
||
|
||
</div>
|
||
|
||
|
||
</div>
|
||
|
||
</div>
|
||
</aside>
|
||
|
||
</div>
|
||
</div>
|
||
|
||
|
||
<div class="grid-container">
|
||
|
||
|
||
</div>
|
||
|
||
</section>
|
||
|
||
|
||
|
||
</div>
|
||
|
||
|
||
|
||
<div data-elastic-exclude>
|
||
<!-- nist-index-ignore-start -->
|
||
|
||
<footer class="nist-footer padding-bottom-4">
|
||
|
||
|
||
<div class="grid-container nist-footer__info">
|
||
<div class="grid-row">
|
||
<div class="tablet:grid-col-6">
|
||
<div class="nist-footer__logo">
|
||
<a href="/" title="National Institute of Standards and Technology" rel="home">
|
||
<img class="nist-footer__logo-img" src="/libraries/nist-component-library/dist/img/logo/NIST-Logo-Brand-White.svg" alt="National Institute of Standards and Technology logo" width="300px" height="42px" />
|
||
</a>
|
||
</div>
|
||
<div class="nist-footer__contact">
|
||
<h3 class="nist-footer__contact-heading">HEADQUARTERS</h3>
|
||
<address>
|
||
100 Bureau Drive<br>
|
||
Gaithersburg, MD 20899<br>
|
||
<a href="tel:301-975-2000">301-975-2000</a>
|
||
</address>
|
||
<p>
|
||
<a href="mailto:do-webmaster@nist.gov">Webmaster</a> | <a href="https://www.nist.gov/about-nist/contact-us">Contact Us</a> | <a href="https://www.nist.gov/visit">Our Other Offices</a>
|
||
</p>
|
||
</div>
|
||
</div>
|
||
<div class="tablet:grid-col-6">
|
||
<div class="nist-footer__social-links">
|
||
|
||
<a class="nist-social nist-social--x-white" href=" https://x.com/NIST">
|
||
<span>X.com</span>
|
||
</a>
|
||
|
||
<a class="nist-social nist-social--facebook-white" href=" https://www.facebook.com/NIST">
|
||
<span>Facebook</span>
|
||
</a>
|
||
|
||
<a class="nist-social nist-social--linkedin-white" href=" https://www.linkedin.com/company/nist">
|
||
<span>LinkedIn</span>
|
||
</a>
|
||
|
||
<a class="nist-social nist-social--instagram-white" href=" https://www.instagram.com/nist/">
|
||
<span>Instagram</span>
|
||
</a>
|
||
|
||
<a class="nist-social nist-social--youtube-white" href=" https://www.youtube.com/NIST">
|
||
<span>YouTube</span>
|
||
</a>
|
||
|
||
<a class="nist-social nist-social--giphy-white" href=" https://giphy.com/nist">
|
||
<span>Giphy</span>
|
||
</a>
|
||
|
||
<a class="nist-social nist-social--rss-white" href=" https://www.nist.gov/news-events/nist-rss-feeds">
|
||
<span>RSS Feed</span>
|
||
</a>
|
||
|
||
<a class="nist-social nist-social--envelope-white" href=" https://public.govdelivery.com/accounts/USNIST/subscriber/new">
|
||
<span>Mailing List</span>
|
||
</a>
|
||
</div>
|
||
<div class="nist-footer__feedback">
|
||
How are we doing? <a class="usa-button" rel="nofollow" href="/form/nist-gov-feedback?destination=/blogs/cybersecurity-insights/scalability-challenges-privacy-preserving-federated-learning" title="Provide feedback">Feedback</a>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
|
||
|
||
<div class="grid-container">
|
||
<div class="nist-footer__nav" role="navigation">
|
||
<ul>
|
||
<li class="nist-footer__menu-item">
|
||
<a href="https://www.nist.gov/privacy-policy">Site Privacy</a>
|
||
</li>
|
||
<li class="nist-footer__menu-item">
|
||
<a href="https://www.nist.gov/oism/accessibility">Accessibility</a>
|
||
</li>
|
||
<li class="nist-footer__menu-item">
|
||
<a href="https://www.nist.gov/privacy">Privacy Program</a>
|
||
</li>
|
||
<li class="nist-footer__menu-item">
|
||
<a href="https://www.nist.gov/oism/copyrights">Copyrights</a>
|
||
</li>
|
||
<li class="nist-footer__menu-item">
|
||
<a href="https://www.commerce.gov/vulnerability-disclosure-policy">Vulnerability Disclosure</a>
|
||
</li>
|
||
<li class="nist-footer__menu-item">
|
||
<a href="https://www.nist.gov/no-fear-act-policy">No Fear Act Policy</a>
|
||
</li>
|
||
<li class="nist-footer__menu-item">
|
||
<a href="https://www.nist.gov/office-director/freedom-information-act">FOIA</a>
|
||
</li>
|
||
<li class="nist-footer__menu-item">
|
||
<a href="https://www.nist.gov/environmental-policy-statement">Environmental Policy</a>
|
||
</li>
|
||
<li class="nist-footer__menu-item">
|
||
<a href="https://www.nist.gov/summary-report-scientific-integrity">Scientific Integrity</a>
|
||
</li>
|
||
<li class="nist-footer__menu-item">
|
||
<a href="https://www.nist.gov/nist-information-quality-standards">Information Quality Standards</a>
|
||
</li>
|
||
<li class="nist-footer__menu-item">
|
||
<a href="https://www.commerce.gov/">Commerce.gov</a>
|
||
</li>
|
||
<li class="nist-footer__menu-item">
|
||
<a href="http://www.science.gov/">Science.gov</a>
|
||
</li>
|
||
<li class="nist-footer__menu-item">
|
||
<a href="http://www.usa.gov/">USA.gov</a>
|
||
</li>
|
||
<li class="nist-footer__menu-item">
|
||
<a href="https://vote.gov/">Vote.gov</a>
|
||
</li>
|
||
</ul>
|
||
</div>
|
||
</div>
|
||
|
||
|
||
</footer>
|
||
<!-- nist-index-ignore-end -->
|
||
</div>
|
||
|
||
</div>
|
||
|
||
|
||
|
||
<script type="application/json" data-drupal-selector="drupal-settings-json">{"path":{"baseUrl":"\/","pathPrefix":"","currentPath":"node\/1863706","currentPathIsAdmin":false,"isFront":false,"currentLanguage":"en"},"pluralDelimiter":"\u0003","suppressDeprecationErrors":true,"back_to_top":{"back_to_top_button_trigger":100,"back_to_top_speed":1200,"back_to_top_prevent_on_mobile":false,"back_to_top_prevent_in_admin":true,"back_to_top_button_type":"image","back_to_top_button_text":"Back to top"},"google_analytics":{"account":"G-HEQ0YF2VYL","trackOutbound":true,"trackMailto":true,"trackTel":true,"trackDownload":true,"trackDownloadExtensions":"7z|aac|arc|arj|asf|asx|avi|bin|bsh|c|csv|doc(x|m)?|dot(x|m)?|dw(fx|g|gd)|dxf|eps|epub|exe|f(90)|flv|gif|gz|gzip|hqx|jar|jpe?g|js|m1v|mp(2|3|4|e?g)|mobi|mov(ie)?|msi|msp|pdf|phps|pl|png|ppt(x|m)?|pot(x|m)?|pps(x|m)?|ppam|sld(x|m)?|thmx|qtm?|ra(m|r)?|rfa|rtf|rvt|sch|sea|sit|swf|tar|tgz|tif|txt|txz|wav|wma|wmv|wpd|wrl|xls(x|m|b)?|xlt(x|m)|xlam|xml|xsd|z|zip"},"nist_search":{"clickTracking":"search-report-click","isDebug":false,"clickTrackEnabled":true,"message":"NIST Search in debug mode. Check the browsers network inspector for Click Track reporting results..."},"data":{"extlink":{"extTarget":false,"extTargetNoOverride":false,"extNofollow":false,"extNoreferrer":false,"extFollowNoOverride":false,"extClass":"ext","extLabel":"(link is external)","extImgClass":false,"extSubdomains":true,"extExclude":"\\.gov\\\/|\\.mil\\\/|\\manufacturingusa\\.com\\\/","extInclude":"","extCssExclude":".ck-editor, .nist-video-thumbnail__lightbox-trigger, a.nist-icon--mail-blue","extCssExplicit":"","extAlert":true,"extAlertText":"Thank you for visiting NIST. We hope your visit was informative. We have provided a link to this site because it has information that may be of interest to our users. NIST does not necessarily endorse the views expressed or the facts presented on this site. Further, NIST does not endorse any commercial products that may be advertised or available on this site. Click OK to be directed to your link.","mailtoClass":"0","mailtoLabel":"(link sends email)","extUseFontAwesome":false,"extIconPlacement":"after","extFaLinkClasses":"fa fa-external-link","extFaMailtoClasses":"fa fa-envelope-o","whitelistedDomains":[]}},"viewsJumpMenu":{"blog-categories-block-2-jump-menu":{"new_window":false}},"ajaxTrustedUrl":{"\/blogs\/cybersecurity-insights\/search":true,"\/comment\/reply\/node\/1863706\/comment_node_blog":true},"user":{"uid":0,"permissionsHash":"bd6a443844dbe99b4e6942f3b1397526e760137efd2b1ee6b2d588fc414dff20"},"antibot":{"forms":{"comment-form":{"id":"comment-form","key":"8s3HerPNUiBWAup-NU0eICdfN5XSJ1VRGAW7gyEytXD"}}}}</script>
|
||
<script src="/sites/default/files/js/js_jDaFaXhHm6gPUKstNYX9eIyoQXghVs3g7rbR0QoqpYY.js?scope=footer&delta=0&language=en&theme=nist_www&include=eJxdjwEOwjAIRS_UyZEItVhxbVlaZvX2dnNGY0IC7wOf4Ok8o-mIBfy3xltzUTUmRiqUnibnBv-CK9IMLzK0oL0kpYBWh4mUCJHe7SbGkpeqd4Z_Ybuya3blzOOuJk8VswYI0sgP4yRl3mcgJvWUpmMFrkyB6wex9_4zwQ_bFiHUdaF0OtDdhXvD25oXzFxW2HnaeNrYUTHxanDk00VrduM_4_qxetML6kp6cg"></script>
|
||
<script src="https://siteimproveanalytics.com/js/siteanalyze_6017546.js" async></script>
|
||
<script src="/sites/default/files/js/js_89G8-zvUpEN2pyq9pCxew6ycYaCbd_j4y6q6QPMEDfk.js?scope=footer&delta=2&language=en&theme=nist_www&include=eJxdjwEOwjAIRS_UyZEItVhxbVlaZvX2dnNGY0IC7wOf4Ok8o-mIBfy3xltzUTUmRiqUnibnBv-CK9IMLzK0oL0kpYBWh4mUCJHe7SbGkpeqd4Z_Ybuya3blzOOuJk8VswYI0sgP4yRl3mcgJvWUpmMFrkyB6wex9_4zwQ_bFiHUdaF0OtDdhXvD25oXzFxW2HnaeNrYUTHxanDk00VrduM_4_qxetML6kp6cg"></script>
|
||
<script type="text/javascript">window.NREUM||(NREUM={});NREUM.info={"beacon":"bam.nr-data.net","licenseKey":"37b7ccb661","applicationID":"1089704227","transactionName":"YFxUN0sADEdYVkBaClkWdwBNCA1aFnFGRhVWVWoNVgUHaHpaWkcXWFVaBks9LFtdUGJaAEB6WQ1NEw1YVVBGHltBUFMU","queueTime":3,"applicationTime":564,"atts":"TBtXQQMaH0k=","errorBeacon":"bam.nr-data.net","agent":""}</script></body>
|
||
</html>
|