2 lines
43 KiB
JavaScript
2 lines
43 KiB
JavaScript
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i,s=t.slice(0),a=c.bitArray,f=a.bitLength(r)/8,u=a.bitLength(s)/8;if(o=o||64,n=n||[],7>f)throw new c.exception.invalid("ccm: iv must be at least 7 bytes");for(i=2;4>i&&u>>>8*i;i++);return i<15-f&&(i=15-f),r=a.clamp(r,8*(15-i)),t=c.mode.ccm.V(e,t,r,n,o,i),s=c.mode.ccm.C(e,s,r,t,o,i),a.concat(s.data,s.tag)},decrypt:function(e,t,r,n,o){o=o||64,n=n||[];var i=c.bitArray,s=i.bitLength(r)/8,u=i.bitLength(t),a=i.clamp(t,u-o),f=i.bitSlice(t,u-o),u=(u-o)/8;if(7>s)throw new c.exception.invalid("ccm: iv must be at least 7 bytes");for(t=2;4>t&&u>>>8*t;t++);if(t<15-s&&(t=15-s),r=i.clamp(r,8*(15-t)),a=c.mode.ccm.C(e,a,r,f,o,t),e=c.mode.ccm.V(e,a.data,r,n,o,t),!i.equal(a.tag,e))throw new c.exception.corrupt("ccm: tag doesn't match");return a.data},na:function(e,t,r,n,o,i){var s=[],a=c.bitArray,f=a.i;if(n=[a.partial(8,(t.length?64:0)|n-2<<2|i-1)],n=a.concat(n,r),n[3]|=o,n=e.encrypt(n),t.length)for(r=a.bitLength(t)/8,65279>=r?s=[a.partial(16,r)]:4294967295>=r&&(s=a.concat([a.partial(16,65534)],[r])),s=a.concat(s,t),t=0;t<s.length;t+=4)n=e.encrypt(f(n,s.slice(t,t+4).concat([0,0,0])));return n},V:function(e,t,r,n,o,i){var s=c.bitArray,a=s.i;if(o/=8,o%2||4>o||16<o)throw new c.exception.invalid("ccm: invalid tag length");if(4294967295<n.length||4294967295<t.length)throw new c.exception.bug("ccm: can't deal with 4GiB or more data");for(r=c.mode.ccm.na(e,n,r,o,s.bitLength(t)/8,i),n=0;n<t.length;n+=4)r=e.encrypt(a(r,t.slice(n,n+4).concat([0,0,0])));return s.clamp(r,8*o)},C:function(e,t,r,n,o,i){var s,a=c.bitArray;s=a.i;var f=t.length,u=a.bitLength(t),l=f/50,h=l;if(r=a.concat([a.partial(8,i-1)],r).concat([0,0,0]).slice(0,4),n=a.bitSlice(s(n,e.encrypt(r)),0,o),!f)return{tag:n,data:[]};for(s=0;s<f;s+=4)s>l&&(c.mode.ccm.fa(s/f),l+=h),r[3]++,o=e.encrypt(r),t[s]^=o[0],t[s+1]^=o[1],t[s+2]^=o[2],t[s+3]^=o[3];return{tag:n,data:a.clamp(t,u)}}};c.mode.ocb2={name:"ocb2",encrypt:function(e,t,r,n,o,i){if(c.bitArray.bitLength(r)!==128)throw new c.exception.invalid("ocb iv must be 128 bits");var s,a=c.mode.ocb2.S,f=c.bitArray,u=f.i,l=[0,0,0,0];r=a(e.encrypt(r));var h,d=[];for(n=n||[],o=o||64,s=0;s+4<t.length;s+=4)h=t.slice(s,s+4),l=u(l,h),d=d.concat(u(r,e.encrypt(u(r,h)))),r=a(r);return h=t.slice(s),t=f.bitLength(h),s=e.encrypt(u(r,[0,0,0,t])),h=f.clamp(u(h.concat([0,0,0]),s),t),l=u(l,u(h.concat([0,0,0]),s)),l=e.encrypt(u(l,u(r,a(r)))),n.length&&(l=u(l,i?n:c.mode.ocb2.pmac(e,n))),d.concat(f.concat(h,f.clamp(l,o)))},decrypt:function(e,t,r,n,o,i){if(c.bitArray.bitLength(r)!==128)throw new c.exception.invalid("ocb iv must be 128 bits");o=o||64;var s=c.mode.ocb2.S,a=c.bitArray,f=a.i,u=[0,0,0,0],l=s(e.encrypt(r)),h,d,y=c.bitArray.bitLength(t)-o,g=[];for(n=n||[],r=0;r+4<y/32;r+=4)h=f(l,e.decrypt(f(l,t.slice(r,r+4)))),u=f(u,h),g=g.concat(h),l=s(l);if(d=y-32*r,h=e.encrypt(f(l,[0,0,0,d])),h=f(h,a.clamp(t.slice(r),d).concat([0,0,0])),u=f(u,h),u=e.encrypt(f(u,f(l,s(l)))),n.length&&(u=f(u,i?n:c.mode.ocb2.pmac(e,n))),!a.equal(a.clamp(u,o),a.bitSlice(t,y)))throw new c.exception.corrupt("ocb: tag doesn't match");return g.concat(a.clamp(h,d))},pmac:function(e,t){var r,n=c.mode.ocb2.S,o=c.bitArray,i=o.i,s=[0,0,0,0],a=e.encrypt([0,0,0,0]),a=i(a,n(n(a)));for(r=0;r+4<t.length;r+=4)a=n(a),s=i(s,e.encrypt(i(a,t.slice(r,r+4))));return r=t.slice(r),128>o.bitLength(r)&&(a=i(a,n(a)),r=o.concat(r,[-2147483648,0,0,0])),s=i(s,r),e.encrypt(i(n(i(a,n(a))),s))},S:function(e){return[e[0]<<1^e[1]>>>31,e[1]<<1^e[2]>>>31,e[2]<<1^e[3]>>>31,e[3]<<1^135*(e[0]>>>31)]}};c.mode.gcm={name:"gcm",encrypt:function(e,t,r,n,o){var i=t.slice(0);return t=c.bitArray,n=n||[],e=c.mode.gcm.C(!0,e,i,n,r,o||128),t.concat(e.data,e.tag)},decrypt:function(e,t,r,n,o){var i=t.slice(0),s=c.bitArray,a=s.bitLength(i);if(o=o||128,n=n||[],o<=a?(t=s.bitSlice(i,a-o),i=s.bitSlice(i,0,a-o)):(t=i,i=[]),e=c.mode.gcm.C(!1,e,i,n,r,o),!s.equal(e.tag,t))throw new c.exception.corrupt("gcm: tag doesn't match");return e.data},ka:function(e,t){var r,n,o,i,s,a=c.bitArray.i;for(o=[0,0,0,0],i=t.slice(0),r=0;128>r;r++){for((n=(e[Math.floor(r/32)]&1<<31-r%32)!==0)&&(o=a(o,i)),s=(i[3]&1)!==0,n=3;0<n;n--)i[n]=i[n]>>>1|(i[n-1]&1)<<31;i[0]>>>=1,s&&(i[0]^=-520093696)}return o},j:function(e,t,r){var n,o=r.length;for(t=t.slice(0),n=0;n<o;n+=4)t[0]^=4294967295&r[n],t[1]^=4294967295&r[n+1],t[2]^=4294967295&r[n+2],t[3]^=4294967295&r[n+3],t=c.mode.gcm.ka(t,e);return t},C:function(e,t,r,n,o,i){var s,a,f,u,l,h,d,y,g=c.bitArray;for(h=r.length,d=g.bitLength(r),y=g.bitLength(n),a=g.bitLength(o),s=t.encrypt([0,0,0,0]),a===96?(o=o.slice(0),o=g.concat(o,[1])):(o=c.mode.gcm.j(s,[0,0,0,0],o),o=c.mode.gcm.j(s,o,[0,0,Math.floor(a/4294967296),a&4294967295])),a=c.mode.gcm.j(s,[0,0,0,0],n),l=o.slice(0),n=a.slice(0),e||(n=c.mode.gcm.j(s,a,r)),u=0;u<h;u+=4)l[3]++,f=t.encrypt(l),r[u]^=f[0],r[u+1]^=f[1],r[u+2]^=f[2],r[u+3]^=f[3];return r=g.clamp(r,d),e&&(n=c.mode.gcm.j(s,a,r)),e=[Math.floor(y/4294967296),y&4294967295,Math.floor(d/4294967296),d&4294967295],n=c.mode.gcm.j(s,n,e),f=t.encrypt(o),n[0]^=f[0],n[1]^=f[1],n[2]^=f[2],n[3]^=f[3],{tag:g.bitSlice(n,0,i),data:r}}};c.misc.hmac=function(e,t){this.W=t=t||c.hash.sha256;var r=[[],[]],n,o=t.prototype.blockSize/32;for(this.w=[new t,new t],e.length>o&&(e=t.hash(e)),n=0;n<o;n++)r[0][n]=e[n]^909522486,r[1][n]=e[n]^1549556828;this.w[0].update(r[0]),this.w[1].update(r[1]),this.R=new t(this.w[0])};c.misc.hmac.prototype.encrypt=c.misc.hmac.prototype.mac=function(e){if(this.aa)throw new c.exception.invalid("encrypt on already updated hmac called!");return this.update(e),this.digest(e)};c.misc.hmac.prototype.reset=function(){this.R=new this.W(this.w[0]),this.aa=!1};c.misc.hmac.prototype.update=function(e){this.aa=!0,this.R.update(e)};c.misc.hmac.prototype.digest=function(){var e=this.R.finalize(),e=new this.W(this.w[1]).update(e).finalize();return this.reset(),e};c.misc.pbkdf2=function(e,t,r,n,o){if(r=r||1e4,0>n||0>r)throw new c.exception.invalid("invalid params to pbkdf2");typeof e=="string"&&(e=c.codec.utf8String.toBits(e)),typeof t=="string"&&(t=c.codec.utf8String.toBits(t)),o=o||c.misc.hmac,e=new o(e);var i,s,a,f,u=[],l=c.bitArray;for(f=1;32*u.length<(n||1);f++){for(o=i=e.encrypt(l.concat(t,[f])),s=1;s<r;s++)for(i=e.encrypt(i),a=0;a<i.length;a++)o[a]^=i[a];u=u.concat(o)}return n&&(u=l.clamp(u,n)),u};c.prng=function(e){this.c=[new c.hash.sha256],this.m=[0],this.P=0,this.H={},this.N=0,this.U={},this.Z=this.f=this.o=this.ha=0,this.b=[0,0,0,0,0,0,0,0],this.h=[0,0,0,0],this.L=void 0,this.M=e,this.D=!1,this.K={progress:{},seeded:{}},this.u=this.ga=0,this.I=1,this.J=2,this.ca=65536,this.T=[0,48,64,96,128,192,256,384,512,768,1024],this.da=3e4,this.ba=80};c.prng.prototype={randomWords:function(e,t){var r=[],n;n=this.isReady(t);var o;if(n===this.u)throw new c.exception.notReady("generator isn't seeded");if(n&this.J){n=!(n&this.I),o=[];var i=0,s;for(this.Z=o[0]=new Date().valueOf()+this.da,s=0;16>s;s++)o.push(4294967296*Math.random()|0);for(s=0;s<this.c.length&&(o=o.concat(this.c[s].finalize()),i+=this.m[s],this.m[s]=0,n||!(this.P&1<<s));s++);for(this.P>=1<<this.c.length&&(this.c.push(new c.hash.sha256),this.m.push(0)),this.f-=i,i>this.o&&(this.o=i),this.P++,this.b=c.hash.sha256.hash(this.b.concat(o)),this.L=new c.cipher.aes(this.b),n=0;4>n&&(this.h[n]=this.h[n]+1|0,!this.h[n]);n++);}for(n=0;n<e;n+=4)(n+1)%this.ca===0&&Re(this),o=ne(this),r.push(o[0],o[1],o[2],o[3]);return Re(this),r.slice(0,e)},setDefaultParanoia:function(e,t){if(e===0&&t!=="Setting paranoia=0 will ruin your security; use it only for testing")throw new c.exception.invalid("Setting paranoia=0 will ruin your security; use it only for testing");this.M=e},addEntropy:function(e,t,r){r=r||"user";var n,o,i=new Date().valueOf(),s=this.H[r],a=this.isReady(),f=0;switch(n=this.U[r],n===void 0&&(n=this.U[r]=this.ha++),s===void 0&&(s=this.H[r]=0),this.H[r]=(this.H[r]+1)%this.c.length,typeof e){case"number":t===void 0&&(t=1),this.c[s].update([n,this.N++,1,t,i,1,e|0]);break;case"object":if(r=Object.prototype.toString.call(e),r==="[object Uint32Array]"){for(o=[],r=0;r<e.length;r++)o.push(e[r]);e=o}else for(r!=="[object Array]"&&(f=1),r=0;r<e.length&&!f;r++)typeof e[r]!="number"&&(f=1);if(!f){if(t===void 0)for(r=t=0;r<e.length;r++)for(o=e[r];0<o;)t++,o=o>>>1;this.c[s].update([n,this.N++,2,t,i,e.length].concat(e))}break;case"string":t===void 0&&(t=e.length),this.c[s].update([n,this.N++,3,t,i,e.length]),this.c[s].update(e);break;default:f=1}if(f)throw new c.exception.bug("random: addEntropy only supports number, array of numbers or string");this.m[s]+=t,this.f+=t,a===this.u&&(this.isReady()!==this.u&&Ce("seeded",Math.max(this.o,this.f)),Ce("progress",this.getProgress()))},isReady:function(e){return e=this.T[e!==void 0?e:this.M],this.o&&this.o>=e?this.m[0]>this.ba&&new Date().valueOf()>this.Z?this.J|this.I:this.I:this.f>=e?this.J|this.u:this.u},getProgress:function(e){return e=this.T[e||this.M],this.o>=e||this.f>e?1:this.f/e},startCollectors:function(){if(!this.D){if(this.a={loadTimeCollector:X(this,this.ma),mouseCollector:X(this,this.oa),keyboardCollector:X(this,this.la),accelerometerCollector:X(this,this.ea),touchCollector:X(this,this.qa)},window.addEventListener)window.addEventListener("load",this.a.loadTimeCollector,!1),window.addEventListener("mousemove",this.a.mouseCollector,!1),window.addEventListener("keypress",this.a.keyboardCollector,!1),window.addEventListener("devicemotion",this.a.accelerometerCollector,!1),window.addEventListener("touchmove",this.a.touchCollector,!1);else if(document.attachEvent)document.attachEvent("onload",this.a.loadTimeCollector),document.attachEvent("onmousemove",this.a.mouseCollector),document.attachEvent("keypress",this.a.keyboardCollector);else throw new c.exception.bug("can't attach event");this.D=!0}},stopCollectors:function(){this.D&&(window.removeEventListener?(window.removeEventListener("load",this.a.loadTimeCollector,!1),window.removeEventListener("mousemove",this.a.mouseCollector,!1),window.removeEventListener("keypress",this.a.keyboardCollector,!1),window.removeEventListener("devicemotion",this.a.accelerometerCollector,!1),window.removeEventListener("touchmove",this.a.touchCollector,!1)):document.detachEvent&&(document.detachEvent("onload",this.a.loadTimeCollector),document.detachEvent("onmousemove",this.a.mouseCollector),document.detachEvent("keypress",this.a.keyboardCollector)),this.D=!1)},addEventListener:function(e,t){this.K[e][this.ga++]=t},removeEventListener:function(e,t){var r,n,o=this.K[e],i=[];for(n in o)o.hasOwnProperty(n)&&o[n]===t&&i.push(n);for(r=0;r<i.length;r++)n=i[r],delete o[n]},la:function(){F(this,1)},oa:function(e){var t,r;try{t=e.x||e.clientX||e.offsetX||0,r=e.y||e.clientY||e.offsetY||0}catch{r=t=0}t!=0&&r!=0&&this.addEntropy([t,r],2,"mouse"),F(this,0)},qa:function(e){e=e.touches[0]||e.changedTouches[0],this.addEntropy([e.pageX||e.clientX,e.pageY||e.clientY],1,"touch"),F(this,0)},ma:function(){F(this,2)},ea:function(e){if(e=e.accelerationIncludingGravity.x||e.accelerationIncludingGravity.y||e.accelerationIncludingGravity.z,window.orientation){var t=window.orientation;typeof t=="number"&&this.addEntropy(t,1,"accelerometer")}e&&this.addEntropy(e,2,"accelerometer"),F(this,0)}};function Ce(e,t){var r,n=c.random.K[e],o=[];for(r in n)n.hasOwnProperty(r)&&o.push(n[r]);for(r=0;r<o.length;r++)o[r](t)}function F(e,t){typeof window<"u"&&window.performance&&typeof window.performance.now=="function"?e.addEntropy(window.performance.now(),t,"loadtime"):e.addEntropy(new Date().valueOf(),t,"loadtime")}function Re(e){e.b=ne(e).concat(ne(e)),e.L=new c.cipher.aes(e.b)}function ne(e){for(var t=0;4>t&&(e.h[t]=e.h[t]+1|0,!e.h[t]);t++);return e.L.encrypt(e.h)}function X(e,t){return function(){t.apply(e,arguments)}}c.random=new c.prng(6);e:try{if(V=typeof j<"u"&&j.exports){try{Z=qe("crypto")}catch{Z=null}V=Y=Z}if(V&&Y.randomBytes)z=Y.randomBytes(128),z=new Uint32Array(new Uint8Array(z).buffer),c.random.addEntropy(z,1024,"crypto['randomBytes']");else if(typeof window<"u"&&typeof Uint32Array<"u"){if(G=new Uint32Array(32),window.crypto&&window.crypto.getRandomValues)window.crypto.getRandomValues(G);else if(window.msCrypto&&window.msCrypto.getRandomValues)window.msCrypto.getRandomValues(G);else break e;c.random.addEntropy(G,1024,"crypto['getRandomValues']")}}catch(e){typeof window<"u"&&window.console&&(console.log("There was an error collecting entropy from the browser:"),console.log(e))}var z,Y,G,V,Z;c.json={defaults:{v:1,iter:1e4,ks:128,ts:64,mode:"ccm",adata:"",cipher:"aes"},ja:function(e,t,r,n){r=r||{},n=n||{};var o=c.json,i=o.g({iv:c.random.randomWords(4,0)},o.defaults),s;if(o.g(i,r),r=i.adata,typeof i.salt=="string"&&(i.salt=c.codec.base64.toBits(i.salt)),typeof i.iv=="string"&&(i.iv=c.codec.base64.toBits(i.iv)),!c.mode[i.mode]||!c.cipher[i.cipher]||typeof e=="string"&&100>=i.iter||i.ts!==64&&i.ts!==96&&i.ts!==128||i.ks!==128&&i.ks!==192&&i.ks!==256||2>i.iv.length||4<i.iv.length)throw new c.exception.invalid("json encrypt: invalid parameters");return typeof e=="string"?(s=c.misc.cachedPbkdf2(e,i),e=s.key.slice(0,i.ks/32),i.salt=s.salt):c.ecc&&e instanceof c.ecc.elGamal.publicKey&&(s=e.kem(),i.kemtag=s.tag,e=s.key.slice(0,i.ks/32)),typeof t=="string"&&(t=c.codec.utf8String.toBits(t)),typeof r=="string"&&(i.adata=r=c.codec.utf8String.toBits(r)),s=new c.cipher[i.cipher](e),o.g(n,i),n.key=e,i.ct=i.mode==="ccm"&&c.arrayBuffer&&c.arrayBuffer.ccm&&t instanceof ArrayBuffer?c.arrayBuffer.ccm.encrypt(s,t,i.iv,r,i.ts):c.mode[i.mode].encrypt(s,t,i.iv,r,i.ts),i},encrypt:function(e,t,r,n){var o=c.json,i=o.ja.apply(o,arguments);return o.encode(i)},ia:function(e,t,r,n){r=r||{},n=n||{};var o=c.json;t=o.g(o.g(o.g({},o.defaults),t),r,!0);var i,s;if(i=t.adata,typeof t.salt=="string"&&(t.salt=c.codec.base64.toBits(t.salt)),typeof t.iv=="string"&&(t.iv=c.codec.base64.toBits(t.iv)),!c.mode[t.mode]||!c.cipher[t.cipher]||typeof e=="string"&&100>=t.iter||t.ts!==64&&t.ts!==96&&t.ts!==128||t.ks!==128&&t.ks!==192&&t.ks!==256||!t.iv||2>t.iv.length||4<t.iv.length)throw new c.exception.invalid("json decrypt: invalid parameters");return typeof e=="string"?(s=c.misc.cachedPbkdf2(e,t),e=s.key.slice(0,t.ks/32),t.salt=s.salt):c.ecc&&e instanceof c.ecc.elGamal.secretKey&&(e=e.unkem(c.codec.base64.toBits(t.kemtag)).slice(0,t.ks/32)),typeof i=="string"&&(i=c.codec.utf8String.toBits(i)),s=new c.cipher[t.cipher](e),i=t.mode==="ccm"&&c.arrayBuffer&&c.arrayBuffer.ccm&&t.ct instanceof ArrayBuffer?c.arrayBuffer.ccm.decrypt(s,t.ct,t.iv,t.tag,i,t.ts):c.mode[t.mode].decrypt(s,t.ct,t.iv,i,t.ts),o.g(n,t),n.key=e,r.raw===1?i:c.codec.utf8String.fromBits(i)},decrypt:function(e,t,r,n){var o=c.json;return o.ia(e,o.decode(t),r,n)},encode:function(e){var t,r="{",n="";for(t in e)if(e.hasOwnProperty(t)){if(!t.match(/^[a-z0-9]+$/i))throw new c.exception.invalid("json encode: invalid property name");switch(r+=n+'"'+t+'":',n=",",typeof e[t]){case"number":case"boolean":r+=e[t];break;case"string":r+='"'+escape(e[t])+'"';break;case"object":r+='"'+c.codec.base64.fromBits(e[t],0)+'"';break;default:throw new c.exception.bug("json encode: unsupported type")}}return r+"}"},decode:function(e){if(e=e.replace(/\s/g,""),!e.match(/^\{.*\}$/))throw new c.exception.invalid("json decode: this isn't json!");e=e.replace(/^\{|\}$/g,"").split(/,/);var t={},r,n;for(r=0;r<e.length;r++){if(!(n=e[r].match(/^\s*(?:(["']?)([a-z][a-z0-9]*)\1)\s*:\s*(?:(-?\d+)|"([a-z0-9+\/%*_.@=\-]*)"|(true|false))$/i)))throw new c.exception.invalid("json decode: this isn't json!");n[3]!=null?t[n[2]]=parseInt(n[3],10):n[4]!=null?t[n[2]]=n[2].match(/^(ct|adata|salt|iv)$/)?c.codec.base64.toBits(n[4]):unescape(n[4]):n[5]!=null&&(t[n[2]]=n[5]==="true")}return t},g:function(e,t,r){if(e===void 0&&(e={}),t===void 0)return e;for(var n in t)if(t.hasOwnProperty(n)){if(r&&e[n]!==void 0&&e[n]!==t[n])throw new c.exception.invalid("required parameter overridden");e[n]=t[n]}return e},sa:function(e,t){var r={},n;for(n in e)e.hasOwnProperty(n)&&e[n]!==t[n]&&(r[n]=e[n]);return r},ra:function(e,t){var r={},n;for(n=0;n<t.length;n++)e[t[n]]!==void 0&&(r[t[n]]=e[t[n]]);return r}};c.encrypt=c.json.encrypt;c.decrypt=c.json.decrypt;c.misc.pa={};c.misc.cachedPbkdf2=function(e,t){var r=c.misc.pa,n;return t=t||{},n=t.iter||1e3,r=r[e]=r[e]||{},n=r[n]=r[n]||{firstSalt:t.salt&&t.salt.length?t.salt.slice(0):c.random.randomWords(2,0)},r=t.salt===void 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