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annotate src/browser/otr.min.js @ 749:7168a9873dde

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server_side (blog): fixes avatar callback
author souliane <souliane@mailoo.org>
date Mon, 23 Nov 2015 22:02:18 +0100
parents cd56f2b0e85b
children
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1 /*
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2
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3 This file contains minified versions of otr.js, Big Integer Library, CryptoJS, EventEmitter.
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4 It is sublicensed under AGPL v3 (or any later version) as allowed by the original licenses.
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5
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6 Below some information about the authors and the licences of the included libraries:
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7
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8 Big Integer Library v. 5.5
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9 Created 2000, last modified 2013
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10 Leemon Baird
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11 www.leemon.com
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12 Original licence information:
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13 // This file is public domain. You can use it for any purpose without restriction.
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14 // I do not guarantee that it is correct, so use it at your own risk. If you use
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15 // it for something interesting, I'd appreciate hearing about it. If you find
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16 // any bugs or make any improvements, I'd appreciate hearing about those too.
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17 // It would also be nice if my name and URL were left in the comments. But none
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18 // of that is required.
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19
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20 CryptoJS v3.1.2
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21 code.google.com/p/crypto-js
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22 (c) 2009-2013 by Jeff Mott. All rights reserved.
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23 code.google.com/p/crypto-js/wiki/License (MIT licence)
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24
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25 EventEmitter v4.2.3 - git.io/ee
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26 Oliver Caldwell
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27 MIT license
522
0de69fec24e9 browser and server sides: OTR plugin, first draft
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28
0de69fec24e9 browser and server sides: OTR plugin, first draft
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29 otr.js v0.2.12 - 2014-04-15
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30 (c) 2014 - Arlo Breault <arlolra@gmail.com>
0de69fec24e9 browser and server sides: OTR plugin, first draft
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31 Freely distributed under the MPL v2.0 license.
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32
0de69fec24e9 browser and server sides: OTR plugin, first draft
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33 */
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34
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cd56f2b0e85b browser_side: disable OTR if the browser is too old to offer crypto.getRandomValues (CSPRNG)
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35 if (typeof crypto !== 'undefined' && (typeof crypto.randomBytes === 'function' || typeof crypto.getRandomValues === 'function')) {
cd56f2b0e85b browser_side: disable OTR if the browser is too old to offer crypto.getRandomValues (CSPRNG)
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37 (function(a,b){if(typeof define==="function"&&define.amd){define(b.bind(a,a.crypto||a.msCrypto))}else{if(typeof module!=="undefined"&&module.exports){module.exports=b(require("crypto"))}else{a.BigInt=b(a.crypto||a.msCrypto)}}}(this,function(v){var x=26;var E=1<<x;var aw=E-1;var bd="0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz_=!@#$%^&*()[]{}|;:,.<>/?`~ \\'\"+-";var o=a0(1,1,1);var W=new Array(0);var aT=W;var n=W;var k=W;var j=W;var i=W;var h=W,g=W;var f=W;var e=W;var ar=W;var a2=W;var aR=W,F=W,R=W;var S=W,V=W,aG=W,aE=W,aC=W,aA=W;var ah=W,ag=W,af=W,aL=W,P=W,O=W,aH=W;var N=W,al=W,aa=W,aQ=W,ao=W,bf=W,U=W,a8=W;var ae=W,H=W,X=W,ad=W,ab=W,M=W,L=W,aW=W;var a7=W;function ba(bl){var T,bj,bk,t;bj=new Array(bl);for(T=0;T<bl;T++){bj[T]=0}bj[0]=2;bk=0;for(;bj[bk]<bl;){for(T=bj[bk]*bj[bk];T<bl;T+=bj[bk]){bj[T]=1}bk++;bj[bk]=bj[bk-1]+1;for(;bj[bk]<bl&&bj[bj[bk]];bj[bk]++){}}t=new Array(bk);for(T=0;T<bk;T++){t[T]=bj[T]}return t}function 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aF(){return a3(40)}function am(){return a3(1)[0]}function aV(bj){if(bj>31){throw new Error("Too many bits.")}var bk=0,bl=0;var t=Math.floor(bj/8);var T=(1<<(bj%8))-1;if(T){bl=am()&T}for(;bk<t;bk++){bl=(256*bl)+am()}return bl}return{str2bigInt:a6,bigInt2str:aM,int2bigInt:a0,multMod:an,powMod:aP,inverseMod:bg,randBigInt:aO,randBigInt_:a1,equals:Q,equalsInt:z,sub:a5,mod:b,modInt:be,mult:d,divInt_:ac,rightShift_:G,dup:K,greater:B,add:w,isZero:aZ,bitSize:ay,millerRabin:aN,divide_:c,trim:a4,primes:N,findPrimes:ba,getSeed:aF,divMod:bb,subMod:aj,twoToThe:I,bigInt2bits:ai,ba2bigInt:aK}}));(function(a,b){if(typeof define==="function"&&define.amd){define(b)}else{if(typeof module!=="undefined"&&module.exports){module.exports=b()}else{a.CryptoJS=b()}}}(this,function(){var a=a||(function(f,h){var b={};var c=b.lib={};var k=c.Base=(function(){function o(){}return{extend:function(q){o.prototype=this;var p=new 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o=this.sigBytes;p[o>>>2]&=4294967295<<(32-(o%4)*8);p.length=f.ceil(o/4)},clone:function(){var o=k.clone.call(this);o.words=this.words.slice(0);return o},random:function(q){var p=[];for(var o=0;o<q;o+=4){p.push((f.random()*4294967296)|0)}return new m.init(p,q)}});var n=b.enc={};var i=n.Hex={stringify:function(q){var s=q.words;var p=q.sigBytes;var r=[];for(var o=0;o<p;o++){var t=(s[o>>>2]>>>(24-(o%4)*8))&255;r.push((t>>>4).toString(16));r.push((t&15).toString(16))}return r.join("")},parse:function(q){var o=q.length;var r=[];for(var p=0;p<o;p+=2){r[p>>>3]|=parseInt(q.substr(p,2),16)<<(24-(p%8)*4)}return new m.init(r,o/2)}};var e=n.Latin1={stringify:function(r){var s=r.words;var q=r.sigBytes;var o=[];for(var p=0;p<q;p++){var t=(s[p>>>2]>>>(24-(p%4)*8))&255;o.push(String.fromCharCode(t))}return o.join("")},parse:function(q){var o=q.length;var r=[];for(var p=0;p<o;p++){r[p>>>2]|=(q.charCodeAt(p)&255)<<(24-(p%4)*8)}return new m.init(r,o)}};var d=n.Utf8={stringify:function(o){try{return 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this},finalize:function(o){if(o){this._append(o)}var p=this._doFinalize();return p},blockSize:512/32,_createHelper:function(o){return function(q,p){return new o.init(p).finalize(q)}},_createHmacHelper:function(o){return function(q,p){return new l.HMAC.init(o,p).finalize(q)}}});var l=b.algo={};return b}(Math));(function(){var f=a;var b=f.lib;var c=b.WordArray;var e=f.enc;var d=e.Base64={stringify:function(m){var o=m.words;var q=m.sigBytes;var h=this._map;m.clamp();var n=[];for(var l=0;l<q;l+=3){var t=(o[l>>>2]>>>(24-(l%4)*8))&255;var r=(o[(l+1)>>>2]>>>(24-((l+1)%4)*8))&255;var p=(o[(l+2)>>>2]>>>(24-((l+2)%4)*8))&255;var s=(t<<16)|(r<<8)|p;for(var k=0;(k<4)&&(l+k*0.75<q);k++){n.push(h.charAt((s>>>(6*(3-k)))&63))}}var g=h.charAt(64);if(g){while(n.length%4){n.push(g)}}return n.join("")},parse:function(p){var n=p.length;var h=this._map;var g=h.charAt(64);if(g){var q=p.indexOf(g);if(q!=-1){n=q}}var o=[];var m=0;for(var l=0;l<n;l++){if(l%4){var k=h.indexOf(p.charAt(l-1))<<((l%4)*2);var j=h.indexOf(p.charAt(l))>>>(6-(l%4)*2);o[m>>>2]|=(k|j)<<(24-(m%4)*8);m++}}return c.create(o,m)},_map:"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/="}}());a.lib.Cipher||(function(e){var n=a;var x=n.lib;var j=x.Base;var u=x.WordArray;var w=x.BufferedBlockAlgorithm;var s=n.enc;var g=s.Utf8;var m=s.Base64;var c=n.algo;var i=c.EvpKDF;var k=x.Cipher=w.extend({cfg:j.extend(),createEncryptor:function(C,B){return this.create(this._ENC_XFORM_MODE,C,B)},createDecryptor:function(C,B){return this.create(this._DEC_XFORM_MODE,C,B)},init:function(D,C,B){this.cfg=this.cfg.extend(B);this._xformMode=D;this._key=C;this.reset()},reset:function(){w.reset.call(this);this._doReset()},process:function(B){this._append(B);return this._process()},finalize:function(C){if(C){this._append(C)}var B=this._doFinalize();return B},keySize:128/32,ivSize:128/32,_ENC_XFORM_MODE:1,_DEC_XFORM_MODE:2,_createHelper:(function(){function B(C){if(typeof C=="string"){return h}else{return A}}return function(C){return{encrypt:function(F,E,D){return B(E).encrypt(C,F,E,D)},decrypt:function(F,E,D){return B(E).decrypt(C,F,E,D)}}}}())});var q=x.StreamCipher=k.extend({_doFinalize:function(){var B=this._process(!!"flush");return B},blockSize:1});var t=n.mode={};var z=x.BlockCipherMode=j.extend({createEncryptor:function(B,C){return this.Encryptor.create(B,C)},createDecryptor:function(B,C){return this.Decryptor.create(B,C)},init:function(B,C){this._cipher=B;this._iv=C}});var d=t.CBC=(function(){var B=z.extend();B.Encryptor=B.extend({processBlock:function(G,F){var D=this._cipher;var E=D.blockSize;C.call(this,G,F,E);D.encryptBlock(G,F);this._prevBlock=G.slice(F,F+E)}});B.Decryptor=B.extend({processBlock:function(H,G){var D=this._cipher;var F=D.blockSize;var E=H.slice(G,G+F);D.decryptBlock(H,G);C.call(this,H,G,F);this._prevBlock=E}});function C(I,H,F){var D=this._iv;if(D){var G=D;this._iv=e}else{var G=this._prevBlock}for(var E=0;E<F;E++){I[H+E]^=G[E]}}return B}());var f=n.pad={};var b=f.Pkcs7={pad:function(G,E){var F=E*4;var I=F-G.sigBytes%F;var B=(I<<24)|(I<<16)|(I<<8)|I;var D=[];for(var C=0;C<I;C+=4){D.push(B)}var H=u.create(D,I);G.concat(H)},unpad:function(B){var C=B.words[(B.sigBytes-1)>>>2]&255;B.sigBytes-=C}};var r=x.BlockCipher=k.extend({cfg:k.cfg.extend({mode:d,padding:b}),reset:function(){k.reset.call(this);var B=this.cfg;var C=B.iv;var E=B.mode;if(this._xformMode==this._ENC_XFORM_MODE){var D=E.createEncryptor}else{var D=E.createDecryptor;this._minBufferSize=1}this._mode=D.call(E,this,C&&C.words)},_doProcessBlock:function(C,B){this._mode.processBlock(C,B)},_doFinalize:function(){var C=this.cfg.padding;if(this._xformMode==this._ENC_XFORM_MODE){C.pad(this._data,this.blockSize);var B=this._process(!!"flush")}else{var B=this._process(!!"flush");C.unpad(B)}return B},blockSize:128/32});var p=x.CipherParams=j.extend({init:function(B){this.mixIn(B)},toString:function(B){return(B||this.formatter).stringify(this)}});var o=n.format={};var v=o.OpenSSL={stringify:function(B){var E=B.ciphertext;var C=B.salt;if(C){var D=u.create([1398893684,1701076831]).concat(C).concat(E)}else{var D=E}return D.toString(m)},parse:function(D){var C=m.parse(D);var E=C.words;if(E[0]==1398893684&&E[1]==1701076831){var B=u.create(E.slice(2,4));E.splice(0,4);C.sigBytes-=16}return p.create({ciphertext:C,salt:B})}};var A=x.SerializableCipher=j.extend({cfg:j.extend({format:v}),encrypt:function(B,G,E,C){C=this.cfg.extend(C);var D=B.createEncryptor(E,C);var H=D.finalize(G);var F=D.cfg;return p.create({ciphertext:H,key:E,iv:F.iv,algorithm:B,mode:F.mode,padding:F.padding,blockSize:B.blockSize,formatter:C.format})},decrypt:function(B,F,D,C){C=this.cfg.extend(C);F=this._parse(F,C.format);var E=B.createDecryptor(D,C).finalize(F.ciphertext);return E},_parse:function(B,C){if(typeof B=="string"){return C.parse(B,this)}else{return B}}});var l=n.kdf={};var y=l.OpenSSL={execute:function(D,G,B,F){if(!F){F=u.random(64/8)}var E=i.create({keySize:G+B}).compute(D,F);var C=u.create(E.words.slice(G),B*4);E.sigBytes=G*4;return p.create({key:E,iv:C,salt:F})}};var h=x.PasswordBasedCipher=A.extend({cfg:A.cfg.extend({kdf:y}),encrypt:function(B,E,D,C){C=this.cfg.extend(C);var G=C.kdf.execute(D,B.keySize,B.ivSize);C.iv=G.iv;var F=A.encrypt.call(this,B,E,G.key,C);F.mixIn(G);return F},decrypt:function(B,F,D,C){C=this.cfg.extend(C);F=this._parse(F,C.format);var G=C.kdf.execute(D,B.keySize,B.ivSize,F.salt);C.iv=G.iv;var E=A.decrypt.call(this,B,F,G.key,C);return E}})}());(function(){var b=a;var c=b.lib;var q=c.BlockCipher;var l=b.algo;var e=[];var m=[];var p=[];var o=[];var n=[];var k=[];var j=[];var i=[];var h=[];var g=[];(function(){var u=[];for(var s=0;s<256;s++){if(s<128){u[s]=s<<1}else{u[s]=(s<<1)^283}}var y=0;var v=0;for(var s=0;s<256;s++){var w=v^(v<<1)^(v<<2)^(v<<3)^(v<<4);w=(w>>>8)^(w&255)^99;e[y]=w;m[w]=y;var r=u[y];var B=u[r];var z=u[B];var A=(u[w]*257)^(w*16843008);p[y]=(A<<24)|(A>>>8);o[y]=(A<<16)|(A>>>16);n[y]=(A<<8)|(A>>>24);k[y]=A;var A=(z*16843009)^(B*65537)^(r*257)^(y*16843008);j[w]=(A<<24)|(A>>>8);i[w]=(A<<16)|(A>>>16);h[w]=(A<<8)|(A>>>24);g[w]=A;if(!y){y=v=1}else{y=r^u[u[u[z^r]]];v^=u[u[v]]}}}());var d=[0,1,2,4,8,16,32,64,128,27,54];var f=l.AES=q.extend({_doReset:function(){var A=this._key;var s=A.words;var z=A.sigBytes/4;var y=this._nRounds=z+6;var r=(y+1)*4;var u=this._keySchedule=[];for(var x=0;x<r;x++){if(x<z){u[x]=s[x]}else{var B=u[x-1];if(!(x%z)){B=(B<<8)|(B>>>24);B=(e[B>>>24]<<24)|(e[(B>>>16)&255]<<16)|(e[(B>>>8)&255]<<8)|e[B&255];B^=d[(x/z)|0]<<24}else{if(z>6&&x%z==4){B=(e[B>>>24]<<24)|(e[(B>>>16)&255]<<16)|(e[(B>>>8)&255]<<8)|e[B&255]}}u[x]=u[x-z]^B}}var v=this._invKeySchedule=[];for(var w=0;w<r;w++){var x=r-w;if(w%4){var B=u[x]}else{var B=u[x-4]}if(w<4||x<=4){v[w]=B}else{v[w]=j[e[B>>>24]]^i[e[(B>>>16)&255]]^h[e[(B>>>8)&255]]^g[e[B&255]]}}},encryptBlock:function(s,r){this._doCryptBlock(s,r,this._keySchedule,p,o,n,k,e)},decryptBlock:function(u,s){var r=u[s+1];u[s+1]=u[s+3];u[s+3]=r;this._doCryptBlock(u,s,this._invKeySchedule,j,i,h,g,m);var r=u[s+1];u[s+1]=u[s+3];u[s+3]=r},_doCryptBlock:function(A,z,I,w,u,s,r,H){var F=this._nRounds;var y=A[z]^I[0];var x=A[z+1]^I[1];var v=A[z+2]^I[2];var t=A[z+3]^I[3];var G=4;for(var J=1;J<F;J++){var E=w[y>>>24]^u[(x>>>16)&255]^s[(v>>>8)&255]^r[t&255]^I[G++];var D=w[x>>>24]^u[(v>>>16)&255]^s[(t>>>8)&255]^r[y&255]^I[G++];var C=w[v>>>24]^u[(t>>>16)&255]^s[(y>>>8)&255]^r[x&255]^I[G++];var B=w[t>>>24]^u[(y>>>16)&255]^s[(x>>>8)&255]^r[v&255]^I[G++];y=E;x=D;v=C;t=B}var E=((H[y>>>24]<<24)|(H[(x>>>16)&255]<<16)|(H[(v>>>8)&255]<<8)|H[t&255])^I[G++];var D=((H[x>>>24]<<24)|(H[(v>>>16)&255]<<16)|(H[(t>>>8)&255]<<8)|H[y&255])^I[G++];var C=((H[v>>>24]<<24)|(H[(t>>>16)&255]<<16)|(H[(y>>>8)&255]<<8)|H[x&255])^I[G++];var B=((H[t>>>24]<<24)|(H[(y>>>16)&255]<<16)|(H[(x>>>8)&255]<<8)|H[v&255])^I[G++];A[z]=E;A[z+1]=D;A[z+2]=C;A[z+3]=B},keySize:256/32});b.AES=q._createHelper(f)}());(function(){var h=a;var e=h.lib;var g=e.WordArray;var c=e.Hasher;var f=h.algo;var b=[];var d=f.SHA1=c.extend({_doReset:function(){this._hash=new g.init([1732584193,4023233417,2562383102,271733878,3285377520])},_doProcessBlock:function(o,k){var u=this._hash.words;var s=u[0];var r=u[1];var q=u[2];var p=u[3];var m=u[4];for(var l=0;l<80;l++){if(l<16){b[l]=o[k+l]|0}else{var j=b[l-3]^b[l-8]^b[l-14]^b[l-16];b[l]=(j<<1)|(j>>>31)}var v=((s<<5)|(s>>>27))+m+b[l];if(l<20){v+=((r&q)|(~r&p))+1518500249}else{if(l<40){v+=(r^q^p)+1859775393}else{if(l<60){v+=((r&q)|(r&p)|(q&p))-1894007588}else{v+=(r^q^p)-899497514}}}m=p;p=q;q=(r<<30)|(r>>>2);r=s;s=v}u[0]=(u[0]+s)|0;u[1]=(u[1]+r)|0;u[2]=(u[2]+q)|0;u[3]=(u[3]+p)|0;u[4]=(u[4]+m)|0},_doFinalize:function(){var k=this._data;var l=k.words;var i=this._nDataBytes*8;var j=k.sigBytes*8;l[j>>>5]|=128<<(24-j%32);l[(((j+64)>>>9)<<4)+14]=Math.floor(i/4294967296);l[(((j+64)>>>9)<<4)+15]=i;k.sigBytes=l.length*4;this._process();return this._hash},clone:function(){var i=c.clone.call(this);i._hash=this._hash.clone();return i}});h.SHA1=c._createHelper(d);h.HmacSHA1=c._createHmacHelper(d)}());(function(d){var b=a;var c=b.lib;var h=c.WordArray;var f=c.Hasher;var i=b.algo;var k=[];var j=[];(function(){function o(s){var r=d.sqrt(s);for(var q=2;q<=r;q++){if(!(s%q)){return false}}return true}function m(q){return((q-(q|0))*4294967296)|0}var p=2;var l=0;while(l<64){if(o(p)){if(l<8){k[l]=m(d.pow(p,1/2))}j[l]=m(d.pow(p,1/3));l++}p++}}());var e=[];var g=i.SHA256=f.extend({_doReset:function(){this._hash=new h.init(k.slice(0))},_doProcessBlock:function(o,n){var r=this._hash.words;var E=r[0];var D=r[1];var C=r[2];var B=r[3];var A=r[4];var z=r[5];var y=r[6];var x=r[7];for(var w=0;w<64;w++){if(w<16){e[w]=o[n+w]|0}else{var m=e[w-15];var G=((m<<25)|(m>>>7))^((m<<14)|(m>>>18))^(m>>>3);var s=e[w-2];var F=((s<<15)|(s>>>17))^((s<<13)|(s>>>19))^(s>>>10);e[w]=G+e[w-7]+F+e[w-16]}var t=(A&z)^(~A&y);var l=(E&D)^(E&C)^(D&C);var v=((E<<30)|(E>>>2))^((E<<19)|(E>>>13))^((E<<10)|(E>>>22));var u=((A<<26)|(A>>>6))^((A<<21)|(A>>>11))^((A<<7)|(A>>>25));var q=x+u+t+j[w]+e[w];var p=v+l;x=y;y=z;z=A;A=(B+q)|0;B=C;C=D;D=E;E=(q+p)|0}r[0]=(r[0]+E)|0;r[1]=(r[1]+D)|0;r[2]=(r[2]+C)|0;r[3]=(r[3]+B)|0;r[4]=(r[4]+A)|0;r[5]=(r[5]+z)|0;r[6]=(r[6]+y)|0;r[7]=(r[7]+x)|0},_doFinalize:function(){var n=this._data;var o=n.words;var l=this._nDataBytes*8;var m=n.sigBytes*8;o[m>>>5]|=128<<(24-m%32);o[(((m+64)>>>9)<<4)+14]=d.floor(l/4294967296);o[(((m+64)>>>9)<<4)+15]=l;n.sigBytes=o.length*4;this._process();return this._hash},clone:function(){var l=f.clone.call(this);l._hash=this._hash.clone();return l}});b.SHA256=f._createHelper(g);b.HmacSHA256=f._createHmacHelper(g)}(Math));(function(){var h=a;var e=h.lib;var d=e.Base;var g=h.enc;var c=g.Utf8;var f=h.algo;var b=f.HMAC=d.extend({init:function(r,o){r=this._hasher=new r.init();if(typeof o=="string"){o=c.parse(o)}var l=r.blockSize;var j=l*4;if(o.sigBytes>j){o=r.finalize(o)}o.clamp();var q=this._oKey=o.clone();var n=this._iKey=o.clone();var p=q.words;var k=n.words;for(var m=0;m<l;m++){p[m]^=1549556828;k[m]^=909522486}q.sigBytes=n.sigBytes=j;this.reset()},reset:function(){var i=this._hasher;i.reset();i.update(this._iKey)},update:function(i){this._hasher.update(i);return this},finalize:function(i){var j=this._hasher;var l=j.finalize(i);j.reset();var k=j.finalize(this._oKey.clone().concat(l));return k}})}());a.pad.NoPadding={pad:function(){},unpad:function(){}};a.mode.CTR=(function(){var c=a.lib.BlockCipherMode.extend();var b=c.Encryptor=c.extend({processBlock:function(l,k){var d=this._cipher;var h=d.blockSize;var f=this._iv;var e=this._counter;if(f){e=this._counter=f.slice(0);this._iv=undefined}var j=e.slice(0);d.encryptBlock(j,0);e[h-1]=(e[h-1]+1)|0;for(var g=0;g<h;g++){l[k+g]^=j[g]}}});c.Decryptor=b;return c}());return a}));
ee38b6a87692 add licence information for otr.js and dependencies
souliane <souliane@mailoo.org>
parents: 522
diff changeset
38 (function(){function c(){}var l=c.prototype;function h(w,x){var v=w.length;while(v--){if(w[v].listener===x){return v}}return -1}function j(v){return function w(){return this[v].apply(this,arguments)}}l.getListeners=function t(v){var y=this._getEvents();var w;var x;if(typeof v==="object"){w={};for(x in y){if(y.hasOwnProperty(x)&&v.test(x)){w[x]=y[x]}}}else{w=y[v]||(y[v]=[])}return w};l.flattenListeners=function r(x){var v=[];var w;for(w=0;w<x.length;w+=1){v.push(x[w].listener)}return v};l.getListenersAsObject=function e(v){var x=this.getListeners(v);var w;if(x instanceof Array){w={};w[v]=x}return w||x};l.addListener=function f(v,y){var x=this.getListenersAsObject(v);var z=typeof y==="object";var w;for(w in x){if(x.hasOwnProperty(w)&&h(x[w],y)===-1){x[w].push(z?y:{listener:y,once:false})}}return this};l.on=j("addListener");l.addOnceListener=function a(v,w){return this.addListener(v,{listener:w,once:true})};l.once=j("addOnceListener");l.defineEvent=function p(v){this.getListeners(v);return this};l.defineEvents=function q(v){for(var w=0;w<v.length;w+=1){this.defineEvent(v[w])}return this};l.removeListener=function b(v,z){var y=this.getListenersAsObject(v);var w;var x;for(x in y){if(y.hasOwnProperty(x)){w=h(y[x],z);if(w!==-1){y[x].splice(w,1)}}}return this};l.off=j("removeListener");l.addListeners=function m(v,w){return this.manipulateListeners(false,v,w)};l.removeListeners=function s(v,w){return this.manipulateListeners(true,v,w)};l.manipulateListeners=function g(w,x,z){var y;var A;var B=w?this.removeListener:this.addListener;var v=w?this.removeListeners:this.addListeners;if(typeof x==="object"&&!(x instanceof RegExp)){for(y in x){if(x.hasOwnProperty(y)&&(A=x[y])){if(typeof A==="function"){B.call(this,y,A)}else{v.call(this,y,A)}}}}else{y=z.length;while(y--){B.call(this,x,z[y])}}return this};l.removeEvent=function o(v){var y=typeof v;var x=this._getEvents();var w;if(y==="string"){delete x[v]}else{if(y==="object"){for(w in x){if(x.hasOwnProperty(w)&&v.test(w)){delete x[w]}}}else{delete this._events}}return this};l.emitEvent=function u(v,x){var A=this.getListenersAsObject(v);var B;var z;var y;var w;for(y in A){if(A.hasOwnProperty(y)){z=A[y].length;while(z--){B=A[y][z];if(B.once===true){this.removeListener(v,B.listener)}w=B.listener.apply(this,x||[]);if(w===this._getOnceReturnValue()){this.removeListener(v,B.listener)}}}}return this};l.trigger=j("emitEvent");l.emit=function k(v){var w=Array.prototype.slice.call(arguments,1);return this.emitEvent(v,w)};l.setOnceReturnValue=function i(v){this._onceReturnValue=v;return this};l._getOnceReturnValue=function n(){if(this.hasOwnProperty("_onceReturnValue")){return this._onceReturnValue}else{return true}};l._getEvents=function d(){return this._events||(this._events={})};if(typeof define==="function"&&define.amd){define(function(){return c})}else{if(typeof module==="object"&&module.exports){module.exports=c}else{this.EventEmitter=c}}}.call(this));
522
0de69fec24e9 browser and server sides: OTR plugin, first draft
souliane <souliane@mailoo.org>
parents:
diff changeset
39 !function(root,factory){"function"==typeof define&&define.amd?define(["bigint","crypto","eventemitter"],function(BigInt,CryptoJS,EventEmitter){var root={BigInt:BigInt,CryptoJS:CryptoJS,EventEmitter:EventEmitter,OTR:{},DSA:{}};return factory.call(root)}):(root.OTR={},root.DSA={},factory.call(root))}(this,function(){return function(){"use strict";var root=this,CONST={N:"FFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD129024E088A67CC74020BBEA63B139B22514A08798E3404DDEF9519B3CD3A431B302B0A6DF25F14374FE1356D6D51C245E485B576625E7EC6F44C42E9A637ED6B0BFF5CB6F406B7EDEE386BFB5A899FA5AE9F24117C4B1FE649286651ECE45B3DC2007CB8A163BF0598DA48361C55D39A69163FA8FD24CF5F83655D23DCA3AD961C62F356208552BB9ED529077096966D670C354E4ABC9804F1746C08CA237327FFFFFFFFFFFFFFFF",G:"2",MSGSTATE_PLAINTEXT:0,MSGSTATE_ENCRYPTED:1,MSGSTATE_FINISHED:2,AUTHSTATE_NONE:0,AUTHSTATE_AWAITING_DHKEY:1,AUTHSTATE_AWAITING_REVEALSIG:2,AUTHSTATE_AWAITING_SIG:3,WHITESPACE_TAG:" ",WHITESPACE_TAG_V2:" ",WHITESPACE_TAG_V3:" ",OTR_TAG:"?OTR",OTR_VERSION_1:"\x00",OTR_VERSION_2:"\x00",OTR_VERSION_3:"\x00",SMPSTATE_EXPECT0:0,SMPSTATE_EXPECT1:1,SMPSTATE_EXPECT2:2,SMPSTATE_EXPECT3:3,SMPSTATE_EXPECT4:4,STATUS_SEND_QUERY:0,STATUS_AKE_INIT:1,STATUS_AKE_SUCCESS:2,STATUS_END_OTR:3};"undefined"!=typeof module&&module.exports?module.exports=CONST:root.OTR.CONST=CONST}.call(this),function(){"use strict";var CryptoJS,BigInt,root=this,HLP={};"undefined"!=typeof module&&module.exports?(module.exports=HLP={},CryptoJS=require("../vendor/crypto.js"),BigInt=require("../vendor/bigint.js")):(root.OTR&&(root.OTR.HLP=HLP),root.DSA&&(root.DSA.HLP=HLP),CryptoJS=root.CryptoJS,BigInt=root.BigInt);var DTS={BYTE:1,SHORT:2,INT:4,CTR:8,MAC:20,SIG:40},WRAPPER_BEGIN="?OTR",WRAPPER_END=".",TWO=BigInt.str2bigInt("2",10);HLP.debug=function(msg){this.debug&&"function"!=typeof this.debug&&"undefined"!=typeof console&&console.log(msg)},HLP.extend=function(child,parent){function Ctor(){this.constructor=child}for(var key in parent)Object.hasOwnProperty.call(parent,key)&&(child[key]=parent[key]);Ctor.prototype=parent.prototype,child.prototype=new Ctor,child.__super__=parent.prototype},HLP.compare=function(str1,str2){if(str1.length!==str2.length)return!1;for(var i=0,result=0;i<str1.length;i++)result|=str1[i].charCodeAt(0)^str2[i].charCodeAt(0);return 0===result},HLP.randomExponent=function(){return BigInt.randBigInt(1536)},HLP.smpHash=function(version,fmpi,smpi){var sha256=CryptoJS.algo.SHA256.create();sha256.update(CryptoJS.enc.Latin1.parse(HLP.packBytes(version,DTS.BYTE))),sha256.update(CryptoJS.enc.Latin1.parse(HLP.packMPI(fmpi))),smpi&&sha256.update(CryptoJS.enc.Latin1.parse(HLP.packMPI(smpi)));var hash=sha256.finalize();return HLP.bits2bigInt(hash.toString(CryptoJS.enc.Latin1))},HLP.makeMac=function(aesctr,m){var pass=CryptoJS.enc.Latin1.parse(m),mac=CryptoJS.HmacSHA256(CryptoJS.enc.Latin1.parse(aesctr),pass);return HLP.mask(mac.toString(CryptoJS.enc.Latin1),0,160)},HLP.make1Mac=function(aesctr,m){var pass=CryptoJS.enc.Latin1.parse(m),mac=CryptoJS.HmacSHA1(CryptoJS.enc.Latin1.parse(aesctr),pass);return mac.toString(CryptoJS.enc.Latin1)},HLP.encryptAes=function(msg,c,iv){var opts={mode:CryptoJS.mode.CTR,iv:CryptoJS.enc.Latin1.parse(iv),padding:CryptoJS.pad.NoPadding},aesctr=CryptoJS.AES.encrypt(msg,CryptoJS.enc.Latin1.parse(c),opts),aesctr_decoded=CryptoJS.enc.Base64.parse(aesctr.toString());return CryptoJS.enc.Latin1.stringify(aesctr_decoded)},HLP.decryptAes=function(msg,c,iv){msg=CryptoJS.enc.Latin1.parse(msg);var opts={mode:CryptoJS.mode.CTR,iv:CryptoJS.enc.Latin1.parse(iv),padding:CryptoJS.pad.NoPadding};return CryptoJS.AES.decrypt(CryptoJS.enc.Base64.stringify(msg),CryptoJS.enc.Latin1.parse(c),opts)},HLP.multPowMod=function(a,b,c,d,e){return BigInt.multMod(BigInt.powMod(a,b,e),BigInt.powMod(c,d,e),e)},HLP.ZKP=function(v,c,d,e){return BigInt.equals(c,HLP.smpHash(v,d,e))},HLP.GTOE=function(a,b){return BigInt.equals(a,b)||BigInt.greater(a,b)},HLP.between=function(x,a,b){return BigInt.greater(x,a)&&BigInt.greater(b,x)},HLP.checkGroup=function(g,N_MINUS_2){return HLP.GTOE(g,TWO)&&HLP.GTOE(N_MINUS_2,g)},HLP.h1=function(b,secbytes){var sha1=CryptoJS.algo.SHA1.create();return sha1.update(CryptoJS.enc.Latin1.parse(b)),sha1.update(CryptoJS.enc.Latin1.parse(secbytes)),sha1.finalize().toString(CryptoJS.enc.Latin1)},HLP.h2=function(b,secbytes){var sha256=CryptoJS.algo.SHA256.create();return sha256.update(CryptoJS.enc.Latin1.parse(b)),sha256.update(CryptoJS.enc.Latin1.parse(secbytes)),sha256.finalize().toString(CryptoJS.enc.Latin1)},HLP.mask=function(bytes,start,n){return bytes.substr(start/8,n/8)};var _toString=String.fromCharCode;HLP.packBytes=function(val,bytes){val=val.toString(16);for(var nex,res="";bytes>0;bytes--)nex=val.length?val.substr(-2,2):"0",val=val.substr(0,val.length-2),res=_toString(parseInt(nex,16))+res;return res},HLP.packINT=function(d){return HLP.packBytes(d,DTS.INT)},HLP.packCtr=function(d){return HLP.padCtr(HLP.packBytes(d,DTS.CTR))},HLP.padCtr=function(ctr){return ctr+"\x00\x00\x00\x00\x00\x00\x00\x00"},HLP.unpackCtr=function(d){return d=HLP.toByteArray(d.substring(0,8)),HLP.unpack(d)},HLP.unpack=function(arr){for(var val=0,i=0,len=arr.length;len>i;i++)val=256*val+arr[i];return val},HLP.packData=function(d){return HLP.packINT(d.length)+d},HLP.bits2bigInt=function(bits){return bits=HLP.toByteArray(bits),BigInt.ba2bigInt(bits)},HLP.packMPI=function(mpi){return HLP.packData(BigInt.bigInt2bits(BigInt.trim(mpi,0)))},HLP.packSHORT=function(short){return HLP.packBytes(short,DTS.SHORT)},HLP.unpackSHORT=function(short){return short=HLP.toByteArray(short),HLP.unpack(short)},HLP.packTLV=function(type,value){return HLP.packSHORT(type)+HLP.packSHORT(value.length)+value},HLP.readLen=function(msg){return msg=HLP.toByteArray(msg.substring(0,4)),HLP.unpack(msg)},HLP.readData=function(data){var n=HLP.unpack(data.splice(0,4));return[n,data]},HLP.readMPI=function(data){return data=HLP.toByteArray(data),data=HLP.readData(data),BigInt.ba2bigInt(data[1])},HLP.packMPIs=function(arr){return arr.reduce(function(prv,cur){return prv+HLP.packMPI(cur)},"")},HLP.unpackMPIs=function(num,mpis){for(var i=0,arr=[];num>i;i++)arr.push("MPI");return HLP.splitype(arr,mpis).map(function(m){return HLP.readMPI(m)})},HLP.wrapMsg=function(msg,fs,v3,our_it,their_it){msg=CryptoJS.enc.Base64.stringify(CryptoJS.enc.Latin1.parse(msg)),msg=WRAPPER_BEGIN+":"+msg+WRAPPER_END;var its;if(v3&&(its="|",its+=HLP.readLen(our_it).toString(16),its+="|",its+=HLP.readLen(their_it).toString(16)),!fs)return[null,msg];var n=Math.ceil(msg.length/fs);if(n>65535)return["Too many fragments"];if(1==n)return[null,msg];var k,bi,ei,frag,mf,mfs=[];for(k=1;n>=k;k++)bi=(k-1)*fs,ei=k*fs,frag=msg.slice(bi,ei),mf=WRAPPER_BEGIN,v3&&(mf+=its),mf+=","+k+",",mf+=n+",",mf+=frag+",",mfs.push(mf);return[null,mfs]},HLP.splitype=function splitype(arr,msg){var data=[];return arr.forEach(function(a){var str;switch(a){case"PUBKEY":str=splitype(["SHORT","MPI","MPI","MPI","MPI"],msg).join("");break;case"DATA":case"MPI":str=msg.substring(0,HLP.readLen(msg)+4);break;default:str=msg.substring(0,DTS[a])}data.push(str),msg=msg.substring(str.length)}),data};var _bin2num=function(){for(var i=0,_bin2num={};256>i;++i)_bin2num[String.fromCharCode(i)]=i;for(i=128;256>i;++i)_bin2num[String.fromCharCode(63232+i)]=i;return _bin2num}();HLP.toByteArray=function(data){for(var rv=[],ary=data.split(""),i=-1,iz=ary.length,remain=iz%8;remain--;)++i,rv[i]=_bin2num[ary[i]];for(remain=iz>>3;remain--;)rv.push(_bin2num[ary[++i]],_bin2num[ary[++i]],_bin2num[ary[++i]],_bin2num[ary[++i]],_bin2num[ary[++i]],_bin2num[ary[++i]],_bin2num[ary[++i]],_bin2num[ary[++i]]);return rv}}.call(this),function(){"use strict";function timer(){var start=(new Date).getTime();return function(s){if(DEBUG&&"undefined"!=typeof console){var t=(new Date).getTime();console.log(s+": "+(t-start)),start=t}}}function makeRandom(min,max){var c=BigInt.randBigInt(BigInt.bitSize(max));return HLP.between(c,min,max)?c:makeRandom(min,max)}function isProbPrime(k,n){var i,B=3e4,l=BigInt.bitSize(k),primes=BigInt.primes;for(0===primes.length&&(primes=BigInt.findPrimes(B)),rpprb.length!=k.length&&(rpprb=BigInt.dup(k)),i=0;i<primes.length&&primes[i]<=B;i++)if(0===BigInt.modInt(k,primes[i])&&!BigInt.equalsInt(k,primes[i]))return 0;for(i=0;n>i;i++){for(BigInt.randBigInt_(rpprb,l,0);!BigInt.greater(k,rpprb);)BigInt.randBigInt_(rpprb,l,0);if(!BigInt.millerRabin(k,rpprb))return 0}return 1}function generatePrimes(bit_length){for(var q,p,rem,counter,t=timer(),repeat=bit_lengths[bit_length].repeat,N=bit_lengths[bit_length].N,LM1=BigInt.twoToThe(bit_length-1),bl4=4*bit_length,brk=!1;;)if(q=BigInt.randBigInt(N,1),q[0]|=1,isProbPrime(q,repeat)){for(t("q"),counter=0;bl4>counter;counter++)if(p=BigInt.randBigInt(bit_length,1),p[0]|=1,rem=BigInt.mod(p,q),rem=BigInt.sub(rem,ONE),p=BigInt.sub(p,rem),!BigInt.greater(LM1,p)&&isProbPrime(p,repeat)){t("p"),primes[bit_length]={p:p,q:q},brk=!0;break}if(brk)break}for(var g,h=BigInt.dup(TWO),pm1=BigInt.sub(p,ONE),e=BigInt.multMod(pm1,BigInt.inverseMod(q,p),p);;){g=BigInt.powMod(h,e,p);{if(!BigInt.equals(g,ONE))return primes[bit_length].g=g,void t("g");h=BigInt.add(h,ONE)}}throw new Error("Unreachable!")}function DSA(obj,opts){if(!(this instanceof DSA))return new DSA(obj,opts);if(opts=opts||{},obj){var self=this;return["p","q","g","y","x"].forEach(function(prop){self[prop]=obj[prop]}),void(this.type=obj.type||KEY_TYPE)}var bit_length=parseInt(opts.bit_length?opts.bit_length:1024,10);if(!bit_lengths[bit_length])throw new Error("Unsupported bit length.");primes[bit_length]||generatePrimes(bit_length),this.p=primes[bit_length].p,this.q=primes[bit_length].q,this.g=primes[bit_length].g,this.type=KEY_TYPE,this.x=makeRandom(ZERO,this.q),this.y=BigInt.powMod(this.g,this.x,this.p),opts.nocache&&(primes[bit_length]=null)}function tokenizeStr(str){var start,end;if(start=str.indexOf("("),end=str.lastIndexOf(")"),0>start||0>end)throw new Error("Malformed S-Expression");str=str.substring(start+1,end);var splt=str.search(/\s/),obj={type:str.substring(0,splt),val:[]};if(str=str.substring(splt+1,end),start=str.indexOf("("),0>start)obj.val.push(str);else for(var i,len,ss,es;start>-1;){for(i=start+1,len=str.length,ss=1,es=0;len>i&&ss>es;i++)"("===str[i]&&ss++,")"===str[i]&&es++;obj.val.push(tokenizeStr(str.substring(start,++i))),str=str.substring(++i),start=str.indexOf("(")}return obj}function parseLibotr(obj){if(!obj.type)throw new Error("Parse error.");var o,val;return"privkeys"===obj.type?(o=[],obj.val.forEach(function(i){o.push(parseLibotr(i))}),o):(o={},obj.val.forEach(function(i){val=i.val[0],"string"==typeof val?0===val.indexOf("#")&&(val=val.substring(1,val.lastIndexOf("#")),val=BigInt.str2bigInt(val,16)):val=parseLibotr(i),o[i.type]=val}),o)}var CryptoJS,BigInt,Worker,WWPath,HLP,root=this;"undefined"!=typeof module&&module.exports?(module.exports=DSA,CryptoJS=require("../vendor/crypto.js"),BigInt=require("../vendor/bigint.js"),WWPath=require("path").join(__dirname,"/dsa-webworker.js"),HLP=require("./helpers.js")):(Object.keys(root.DSA).forEach(function(k){DSA[k]=root.DSA[k]}),root.DSA=DSA,CryptoJS=root.CryptoJS,BigInt=root.BigInt,Worker=root.Worker,WWPath="dsa-webworker.js",HLP=DSA.HLP);var ZERO=BigInt.str2bigInt("0",10),ONE=BigInt.str2bigInt("1",10),TWO=BigInt.str2bigInt("2",10),KEY_TYPE="\x00\x00",DEBUG=!1,rpprb=[],bit_lengths={1024:{N:160,repeat:40},2048:{N:224,repeat:56}},primes={};DSA.prototype={constructor:DSA,packPublic:function(){var str=this.type;return str+=HLP.packMPI(this.p),str+=HLP.packMPI(this.q),str+=HLP.packMPI(this.g),str+=HLP.packMPI(this.y)},packPrivate:function(){var str=this.packPublic()+HLP.packMPI(this.x);return str=CryptoJS.enc.Latin1.parse(str),str.toString(CryptoJS.enc.Base64)},generateNonce:function(m){var priv=BigInt.bigInt2bits(BigInt.trim(this.x,0)),rand=BigInt.bigInt2bits(BigInt.randBigInt(256)),sha256=CryptoJS.algo.SHA256.create();sha256.update(CryptoJS.enc.Latin1.parse(priv)),sha256.update(m),sha256.update(CryptoJS.enc.Latin1.parse(rand));var hash=sha256.finalize();return hash=HLP.bits2bigInt(hash.toString(CryptoJS.enc.Latin1)),BigInt.rightShift_(hash,256-BigInt.bitSize(this.q)),HLP.between(hash,ZERO,this.q)?hash:this.generateNonce(m)},sign:function(m){m=CryptoJS.enc.Latin1.parse(m);for(var k,b=BigInt.str2bigInt(m.toString(CryptoJS.enc.Hex),16),r=ZERO,s=ZERO;BigInt.isZero(s)||BigInt.isZero(r);)k=this.generateNonce(m),r=BigInt.mod(BigInt.powMod(this.g,k,this.p),this.q),BigInt.isZero(r)||(s=BigInt.inverseMod(k,this.q),s=BigInt.mult(s,BigInt.add(b,BigInt.mult(this.x,r))),s=BigInt.mod(s,this.q));return[r,s]},fingerprint:function(){var pk=this.packPublic();return this.type===KEY_TYPE&&(pk=pk.substring(2)),pk=CryptoJS.enc.Latin1.parse(pk),CryptoJS.SHA1(pk).toString(CryptoJS.enc.Hex)}},DSA.parsePublic=function(str,priv){var fields=["SHORT","MPI","MPI","MPI","MPI"];priv&&fields.push("MPI"),str=HLP.splitype(fields,str);var obj={type:str[0],p:HLP.readMPI(str[1]),q:HLP.readMPI(str[2]),g:HLP.readMPI(str[3]),y:HLP.readMPI(str[4])};return priv&&(obj.x=HLP.readMPI(str[5])),new DSA(obj)},DSA.parsePrivate=function(str,libotr){return libotr?parseLibotr(tokenizeStr(str))[0]["private-key"].dsa:(str=CryptoJS.enc.Base64.parse(str),str=str.toString(CryptoJS.enc.Latin1),DSA.parsePublic(str,!0))},DSA.verify=function(key,m,r,s){if(!HLP.between(r,ZERO,key.q)||!HLP.between(s,ZERO,key.q))return!1;var hm=CryptoJS.enc.Latin1.parse(m);hm=BigInt.str2bigInt(hm.toString(CryptoJS.enc.Hex),16);var w=BigInt.inverseMod(s,key.q),u1=BigInt.multMod(hm,w,key.q),u2=BigInt.multMod(r,w,key.q);u1=BigInt.powMod(key.g,u1,key.p),u2=BigInt.powMod(key.y,u2,key.p);var v=BigInt.mod(BigInt.multMod(u1,u2,key.p),key.q);return BigInt.equals(v,r)},DSA.createInWebWorker=function(options,cb){var opts={path:WWPath,seed:BigInt.getSeed};options&&"object"==typeof options&&Object.keys(options).forEach(function(k){opts[k]=options[k]}),"undefined"!=typeof module&&module.exports&&(Worker=require("webworker-threads").Worker);var worker=new Worker(opts.path);worker.onmessage=function(e){var data=e.data;switch(data.type){case"debug":if(!DEBUG||"undefined"==typeof console)return;console.log(data.val);break;case"data":worker.terminate(),cb(DSA.parsePrivate(data.val));break;default:throw new Error("Unrecognized type.")}},worker.postMessage({seed:opts.seed(),imports:opts.imports,debug:DEBUG})}}.call(this),function(){"use strict";var CryptoJS,CONST,HLP,root=this,Parse={};"undefined"!=typeof module&&module.exports?(module.exports=Parse,CryptoJS=require("../vendor/crypto.js"),CONST=require("./const.js"),HLP=require("./helpers.js")):(root.OTR.Parse=Parse,CryptoJS=root.CryptoJS,CONST=root.OTR.CONST,HLP=root.OTR.HLP);var tags={};tags[CONST.WHITESPACE_TAG_V2]=CONST.OTR_VERSION_2,tags[CONST.WHITESPACE_TAG_V3]=CONST.OTR_VERSION_3,Parse.parseMsg=function(otr,msg){var ver=[],start=msg.indexOf(CONST.OTR_TAG);if(!~start){if(this.initFragment(otr),ind=msg.indexOf(CONST.WHITESPACE_TAG),~ind){msg=msg.split(""),msg.splice(ind,16);for(var tag,len=msg.length;len>ind;)tag=msg.slice(ind,ind+8).join(""),Object.hasOwnProperty.call(tags,tag)?(msg.splice(ind,8),ver.push(tags[tag])):ind+=8;msg=msg.join("")}return{msg:msg,ver:ver}}var ind=start+CONST.OTR_TAG.length,com=msg[ind];if(","===com||"|"===com)return this.msgFragment(otr,msg.substring(ind+1),"|"===com);if(this.initFragment(otr),~["?","v"].indexOf(com)){"?"===msg[ind]&&(ver.push(CONST.OTR_VERSION_1),ind+=1);var vers={2:CONST.OTR_VERSION_2,3:CONST.OTR_VERSION_3},qs=msg.substring(ind+1),qi=qs.indexOf("?");return qi>=1&&(qs=qs.substring(0,qi).split(""),"v"===msg[ind]&&qs.forEach(function(q){Object.hasOwnProperty.call(vers,q)&&ver.push(vers[q])})),{cls:"query",ver:ver}}if(":"===com){ind+=1;var info=msg.substring(ind,ind+4);if(info.length<4)return{msg:msg};info=CryptoJS.enc.Base64.parse(info).toString(CryptoJS.enc.Latin1);var version=info.substring(0,2),type=info.substring(2);if(!otr["ALLOW_V"+HLP.unpackSHORT(version)])return{msg:msg};ind+=4;var end=msg.substring(ind).indexOf(".");if(!~end)return{msg:msg};msg=CryptoJS.enc.Base64.parse(msg.substring(ind,ind+end)),msg=CryptoJS.enc.Latin1.stringify(msg);var instance_tags;version===CONST.OTR_VERSION_3&&(instance_tags=msg.substring(0,8),msg=msg.substring(8));var cls;return~["","\n","",""].indexOf(type)?cls="ake":""===type&&(cls="data"),{version:version,type:type,msg:msg,cls:cls,instance_tags:instance_tags}}return" Error:"===msg.substring(ind,ind+7)?(otr.ERROR_START_AKE&&otr.sendQueryMsg(),{msg:msg.substring(ind+7),cls:"error"}):{msg:msg}},Parse.initFragment=function(otr){otr.fragment={s:"",j:0,k:0}},Parse.msgFragment=function(otr,msg,v3){if(msg=msg.split(","),v3){var its=msg.shift().split("|"),their_it=HLP.packINT(parseInt(its[0],16)),our_it=HLP.packINT(parseInt(its[1],16));if(otr.checkInstanceTags(their_it+our_it))return}if(!(msg.length<4||isNaN(parseInt(msg[0],10))||isNaN(parseInt(msg[1],10)))){var k=parseInt(msg[0],10),n=parseInt(msg[1],10);return msg=msg[2],k>n||0===n||0===k?void this.initFragment(otr):(1===k?(this.initFragment(otr),otr.fragment={k:1,n:n,s:msg}):n===otr.fragment.n&&k===otr.fragment.k+1?(otr.fragment.s+=msg,otr.fragment.k+=1):this.initFragment(otr),n===k?(msg=otr.fragment.s,this.initFragment(otr),this.parseMsg(otr,msg)):void 0)}}}.call(this),function(){"use strict";function hMac(gx,gy,pk,kid,m){var pass=CryptoJS.enc.Latin1.parse(m),hmac=CryptoJS.algo.HMAC.create(CryptoJS.algo.SHA256,pass);return hmac.update(CryptoJS.enc.Latin1.parse(HLP.packMPI(gx))),hmac.update(CryptoJS.enc.Latin1.parse(HLP.packMPI(gy))),hmac.update(CryptoJS.enc.Latin1.parse(pk)),hmac.update(CryptoJS.enc.Latin1.parse(kid)),hmac.finalize().toString(CryptoJS.enc.Latin1)}function AKE(otr){if(!(this instanceof AKE))return new AKE(otr);this.otr=otr,this.our_dh=otr.our_old_dh,this.our_keyid=otr.our_keyid-1,this.their_y=null,this.their_keyid=null,this.their_priv_pk=null,this.ssid=null,this.transmittedRS=!1,this.r=null;var self=this;["sendMsg"].forEach(function(meth){self[meth]=self[meth].bind(self)})}var CryptoJS,BigInt,CONST,HLP,DSA,root=this;"undefined"!=typeof module&&module.exports?(module.exports=AKE,CryptoJS=require("../vendor/crypto.js"),BigInt=require("../vendor/bigint.js"),CONST=require("./const.js"),HLP=require("./helpers.js"),DSA=require("./dsa.js")):(root.OTR.AKE=AKE,CryptoJS=root.CryptoJS,BigInt=root.BigInt,CONST=root.OTR.CONST,HLP=root.OTR.HLP,DSA=root.DSA);var N=BigInt.str2bigInt(CONST.N,16),N_MINUS_2=BigInt.sub(N,BigInt.str2bigInt("2",10));AKE.prototype={constructor:AKE,createKeys:function(g){var s=BigInt.powMod(g,this.our_dh.privateKey,N),secbytes=HLP.packMPI(s);this.ssid=HLP.mask(HLP.h2("\x00",secbytes),0,64);var tmp=HLP.h2("",secbytes);this.c=HLP.mask(tmp,0,128),this.c_prime=HLP.mask(tmp,128,128),this.m1=HLP.h2("",secbytes),this.m2=HLP.h2("",secbytes),this.m1_prime=HLP.h2("",secbytes),this.m2_prime=HLP.h2("",secbytes)},verifySignMac:function(mac,aesctr,m2,c,their_y,our_dh_pk,m1,ctr){var vmac=HLP.makeMac(aesctr,m2);if(!HLP.compare(mac,vmac))return["MACs do not match."];var x=HLP.decryptAes(aesctr.substring(4),c,ctr);x=HLP.splitype(["PUBKEY","INT","SIG"],x.toString(CryptoJS.enc.Latin1));var m=hMac(their_y,our_dh_pk,x[0],x[1],m1),pub=DSA.parsePublic(x[0]),r=HLP.bits2bigInt(x[2].substring(0,20)),s=HLP.bits2bigInt(x[2].substring(20));return DSA.verify(pub,m,r,s)?[null,HLP.readLen(x[1]),pub]:["Cannot verify signature of m."]},makeM:function(their_y,m1,c,m2){var pk=this.otr.priv.packPublic(),kid=HLP.packINT(this.our_keyid),m=hMac(this.our_dh.publicKey,their_y,pk,kid,m1);m=this.otr.priv.sign(m);var msg=pk+kid;msg+=BigInt.bigInt2bits(m[0],20),msg+=BigInt.bigInt2bits(m[1],20),msg=CryptoJS.enc.Latin1.parse(msg);var aesctr=HLP.packData(HLP.encryptAes(msg,c,HLP.packCtr(0))),mac=HLP.makeMac(aesctr,m2);return aesctr+mac},akeSuccess:function(version){return HLP.debug.call(this.otr,"success"),BigInt.equals(this.their_y,this.our_dh.publicKey)?this.otr.error("equal keys - we have a problem.",!0):(this.otr.our_old_dh=this.our_dh,this.otr.their_priv_pk=this.their_priv_pk,this.their_keyid===this.otr.their_keyid&&BigInt.equals(this.their_y,this.otr.their_y)||this.their_keyid===this.otr.their_keyid-1&&BigInt.equals(this.their_y,this.otr.their_old_y)||(this.otr.their_y=this.their_y,this.otr.their_old_y=null,this.otr.their_keyid=this.their_keyid,this.otr.sessKeys[0]=[new this.otr.DHSession(this.otr.our_dh,this.otr.their_y),null],this.otr.sessKeys[1]=[new this.otr.DHSession(this.otr.our_old_dh,this.otr.their_y),null]),this.otr.ssid=this.ssid,this.otr.transmittedRS=this.transmittedRS,this.otr_version=version,this.otr.authstate=CONST.AUTHSTATE_NONE,this.otr.msgstate=CONST.MSGSTATE_ENCRYPTED,this.r=null,this.myhashed=null,this.dhcommit=null,this.encrypted=null,this.hashed=null,this.otr.trigger("status",[CONST.STATUS_AKE_SUCCESS]),void this.otr.sendStored())},handleAKE:function(msg){var send,vsm,type,version=msg.version;switch(msg.type){case"":if(HLP.debug.call(this.otr,"d-h key message"),msg=HLP.splitype(["DATA","DATA"],msg.msg),this.otr.authstate===CONST.AUTHSTATE_AWAITING_DHKEY){var ourHash=HLP.readMPI(this.myhashed),theirHash=HLP.readMPI(msg[1]);if(BigInt.greater(ourHash,theirHash)){type="",send=this.dhcommit;break}this.our_dh=this.otr.dh(),this.otr.authstate=CONST.AUTHSTATE_NONE,this.r=null,this.myhashed=null}else this.otr.authstate===CONST.AUTHSTATE_AWAITING_SIG&&(this.our_dh=this.otr.dh());this.otr.authstate=CONST.AUTHSTATE_AWAITING_REVEALSIG,this.encrypted=msg[0].substring(4),this.hashed=msg[1].substring(4),type="\n",send=HLP.packMPI(this.our_dh.publicKey);break;case"\n":if(HLP.debug.call(this.otr,"reveal signature message"),msg=HLP.splitype(["MPI"],msg.msg),this.otr.authstate!==CONST.AUTHSTATE_AWAITING_DHKEY){if(this.otr.authstate!==CONST.AUTHSTATE_AWAITING_SIG)return;if(!BigInt.equals(this.their_y,HLP.readMPI(msg[0])))return}if(this.otr.authstate=CONST.AUTHSTATE_AWAITING_SIG,this.their_y=HLP.readMPI(msg[0]),!HLP.checkGroup(this.their_y,N_MINUS_2))return this.otr.error("Illegal g^y.",!0);this.createKeys(this.their_y),type="",send=HLP.packMPI(this.r),send+=this.makeM(this.their_y,this.m1,this.c,this.m2),this.m1=null,this.m2=null,this.c=null;break;case"":if(HLP.debug.call(this.otr,"signature message"),this.otr.authstate!==CONST.AUTHSTATE_AWAITING_REVEALSIG)return;msg=HLP.splitype(["DATA","DATA","MAC"],msg.msg),this.r=HLP.readMPI(msg[0]);var key=CryptoJS.enc.Hex.parse(BigInt.bigInt2str(this.r,16));key=CryptoJS.enc.Latin1.stringify(key);var gxmpi=HLP.decryptAes(this.encrypted,key,HLP.packCtr(0));gxmpi=gxmpi.toString(CryptoJS.enc.Latin1),this.their_y=HLP.readMPI(gxmpi);var hash=CryptoJS.SHA256(CryptoJS.enc.Latin1.parse(gxmpi));return HLP.compare(this.hashed,hash.toString(CryptoJS.enc.Latin1))?HLP.checkGroup(this.their_y,N_MINUS_2)?(this.createKeys(this.their_y),vsm=this.verifySignMac(msg[2],msg[1],this.m2,this.c,this.their_y,this.our_dh.publicKey,this.m1,HLP.packCtr(0)),vsm[0]?this.otr.error(vsm[0],!0):(this.their_keyid=vsm[1],this.their_priv_pk=vsm[2],send=this.makeM(this.their_y,this.m1_prime,this.c_prime,this.m2_prime),this.m1=null,this.m2=null,this.m1_prime=null,this.m2_prime=null,this.c=null,this.c_prime=null,this.sendMsg(version,"",send),void this.akeSuccess(version))):this.otr.error("Illegal g^x.",!0):this.otr.error("Hashed g^x does not match.",!0);case"":if(HLP.debug.call(this.otr,"data message"),this.otr.authstate!==CONST.AUTHSTATE_AWAITING_SIG)return;return msg=HLP.splitype(["DATA","MAC"],msg.msg),vsm=this.verifySignMac(msg[1],msg[0],this.m2_prime,this.c_prime,this.their_y,this.our_dh.publicKey,this.m1_prime,HLP.packCtr(0)),vsm[0]?this.otr.error(vsm[0],!0):(this.their_keyid=vsm[1],this.their_priv_pk=vsm[2],this.m1_prime=null,this.m2_prime=null,this.c_prime=null,this.transmittedRS=!0,void this.akeSuccess(version));default:return}this.sendMsg(version,type,send)},sendMsg:function(version,type,msg){var send=version+type,v3=version===CONST.OTR_VERSION_3;return v3&&(HLP.debug.call(this.otr,"instance tags"),send+=this.otr.our_instance_tag,send+=this.otr.their_instance_tag),send+=msg,send=HLP.wrapMsg(send,this.otr.fragment_size,v3,this.otr.our_instance_tag,this.otr.their_instance_tag),send[0]?this.otr.error(send[0]):void this.otr.io(send[1])},initiateAKE:function(version){HLP.debug.call(this.otr,"d-h commit message"),this.otr.trigger("status",[CONST.STATUS_AKE_INIT]),this.otr.authstate=CONST.AUTHSTATE_AWAITING_DHKEY;var gxmpi=HLP.packMPI(this.our_dh.publicKey);gxmpi=CryptoJS.enc.Latin1.parse(gxmpi),this.r=BigInt.randBigInt(128);var key=CryptoJS.enc.Hex.parse(BigInt.bigInt2str(this.r,16));key=CryptoJS.enc.Latin1.stringify(key),this.myhashed=CryptoJS.SHA256(gxmpi),this.myhashed=HLP.packData(this.myhashed.toString(CryptoJS.enc.Latin1)),this.dhcommit=HLP.packData(HLP.encryptAes(gxmpi,key,HLP.packCtr(0))),this.dhcommit+=this.myhashed,this.sendMsg(version,"",this.dhcommit)}}}.call(this),function(){"use strict";function SM(reqs){return this instanceof SM?(this.version=1,this.our_fp=reqs.our_fp,this.their_fp=reqs.their_fp,this.ssid=reqs.ssid,this.debug=!!reqs.debug,void this.init()):new SM(reqs)}var CryptoJS,BigInt,EventEmitter,CONST,HLP,root=this;"undefined"!=typeof module&&module.exports?(module.exports=SM,CryptoJS=require("../vendor/crypto.js"),BigInt=require("../vendor/bigint.js"),EventEmitter=require("../vendor/eventemitter.js"),CONST=require("./const.js"),HLP=require("./helpers.js")):(root.OTR.SM=SM,CryptoJS=root.CryptoJS,BigInt=root.BigInt,EventEmitter=root.EventEmitter,CONST=root.OTR.CONST,HLP=root.OTR.HLP);var G=BigInt.str2bigInt(CONST.G,10),N=BigInt.str2bigInt(CONST.N,16),N_MINUS_2=BigInt.sub(N,BigInt.str2bigInt("2",10)),Q=BigInt.sub(N,BigInt.str2bigInt("1",10));BigInt.divInt_(Q,2),HLP.extend(SM,EventEmitter),SM.prototype.init=function(){this.smpstate=CONST.SMPSTATE_EXPECT1,this.secret=null},SM.prototype.makeSecret=function(our,secret){var sha256=CryptoJS.algo.SHA256.create();sha256.update(CryptoJS.enc.Latin1.parse(HLP.packBytes(this.version,1))),sha256.update(CryptoJS.enc.Hex.parse(our?this.our_fp:this.their_fp)),sha256.update(CryptoJS.enc.Hex.parse(our?this.their_fp:this.our_fp)),sha256.update(CryptoJS.enc.Latin1.parse(this.ssid)),sha256.update(CryptoJS.enc.Latin1.parse(secret));var hash=sha256.finalize();this.secret=HLP.bits2bigInt(hash.toString(CryptoJS.enc.Latin1))},SM.prototype.makeG2s=function(){this.a2=HLP.randomExponent(),this.a3=HLP.randomExponent(),this.g2a=BigInt.powMod(G,this.a2,N),this.g3a=BigInt.powMod(G,this.a3,N),HLP.checkGroup(this.g2a,N_MINUS_2)&&HLP.checkGroup(this.g3a,N_MINUS_2)||this.makeG2s()},SM.prototype.computeGs=function(g2a,g3a){this.g2=BigInt.powMod(g2a,this.a2,N),this.g3=BigInt.powMod(g3a,this.a3,N)},SM.prototype.computePQ=function(r){this.p=BigInt.powMod(this.g3,r,N),this.q=HLP.multPowMod(G,r,this.g2,this.secret,N)},SM.prototype.computeR=function(){this.r=BigInt.powMod(this.QoQ,this.a3,N)},SM.prototype.computeRab=function(r){return BigInt.powMod(r,this.a3,N)},SM.prototype.computeC=function(v,r){return HLP.smpHash(v,BigInt.powMod(G,r,N))},SM.prototype.computeD=function(r,a,c){return BigInt.subMod(r,BigInt.multMod(a,c,Q),Q)},SM.prototype.handleSM=function(msg){var send,r2,r3,r7,t1,t2,t3,t4,rab,tmp2,cR,d7,ms,trust,expectStates={2:CONST.SMPSTATE_EXPECT1,3:CONST.SMPSTATE_EXPECT2,4:CONST.SMPSTATE_EXPECT3,5:CONST.SMPSTATE_EXPECT4,7:CONST.SMPSTATE_EXPECT1};if(6===msg.type)return this.init(),void this.trigger("abort");if(this.smpstate!==expectStates[msg.type])return this.abort();switch(this.smpstate){case CONST.SMPSTATE_EXPECT1:HLP.debug.call(this,"smp tlv 2");var ind,question;return 7===msg.type&&(ind=msg.msg.indexOf("\x00"),question=msg.msg.substring(0,ind),msg.msg=msg.msg.substring(ind+1)),ms=HLP.readLen(msg.msg.substr(0,4)),6!==ms?this.abort():(msg=HLP.unpackMPIs(6,msg.msg.substring(4)),HLP.checkGroup(msg[0],N_MINUS_2)&&HLP.checkGroup(msg[3],N_MINUS_2)&&HLP.ZKP(1,msg[1],HLP.multPowMod(G,msg[2],msg[0],msg[1],N))&&HLP.ZKP(2,msg[4],HLP.multPowMod(G,msg[5],msg[3],msg[4],N))?(this.g3ao=msg[3],this.makeG2s(),r2=HLP.randomExponent(),r3=HLP.randomExponent(),this.c2=this.computeC(3,r2),this.c3=this.computeC(4,r3),this.d2=this.computeD(r2,this.a2,this.c2),this.d3=this.computeD(r3,this.a3,this.c3),this.computeGs(msg[0],msg[3]),this.smpstate=CONST.SMPSTATE_EXPECT0,question=CryptoJS.enc.Latin1.parse(question).toString(CryptoJS.enc.Utf8),void this.trigger("question",[question])):this.abort());case CONST.SMPSTATE_EXPECT2:if(HLP.debug.call(this,"smp tlv 3"),ms=HLP.readLen(msg.msg.substr(0,4)),11!==ms)return this.abort();if(msg=HLP.unpackMPIs(11,msg.msg.substring(4)),!(HLP.checkGroup(msg[0],N_MINUS_2)&&HLP.checkGroup(msg[3],N_MINUS_2)&&HLP.checkGroup(msg[6],N_MINUS_2)&&HLP.checkGroup(msg[7],N_MINUS_2)))return this.abort();if(!HLP.ZKP(3,msg[1],HLP.multPowMod(G,msg[2],msg[0],msg[1],N)))return this.abort();if(!HLP.ZKP(4,msg[4],HLP.multPowMod(G,msg[5],msg[3],msg[4],N)))return this.abort();if(this.g3ao=msg[3],this.computeGs(msg[0],msg[3]),t1=HLP.multPowMod(this.g3,msg[9],msg[6],msg[8],N),t2=HLP.multPowMod(G,msg[9],this.g2,msg[10],N),t2=BigInt.multMod(t2,BigInt.powMod(msg[7],msg[8],N),N),!HLP.ZKP(5,msg[8],t1,t2))return this.abort();var r4=HLP.randomExponent();this.computePQ(r4);var r5=HLP.randomExponent(),r6=HLP.randomExponent(),tmp=HLP.multPowMod(G,r5,this.g2,r6,N),cP=HLP.smpHash(6,BigInt.powMod(this.g3,r5,N),tmp),d5=this.computeD(r5,r4,cP),d6=this.computeD(r6,this.secret,cP);this.QoQ=BigInt.divMod(this.q,msg[7],N),this.PoP=BigInt.divMod(this.p,msg[6],N),this.computeR(),r7=HLP.randomExponent(),tmp2=BigInt.powMod(this.QoQ,r7,N),cR=HLP.smpHash(7,BigInt.powMod(G,r7,N),tmp2),d7=this.computeD(r7,this.a3,cR),this.smpstate=CONST.SMPSTATE_EXPECT4,send=HLP.packINT(8)+HLP.packMPIs([this.p,this.q,cP,d5,d6,this.r,cR,d7]),send=HLP.packTLV(4,send);break;case CONST.SMPSTATE_EXPECT3:if(HLP.debug.call(this,"smp tlv 4"),ms=HLP.readLen(msg.msg.substr(0,4)),8!==ms)return this.abort();if(msg=HLP.unpackMPIs(8,msg.msg.substring(4)),!HLP.checkGroup(msg[0],N_MINUS_2)||!HLP.checkGroup(msg[1],N_MINUS_2)||!HLP.checkGroup(msg[5],N_MINUS_2))return this.abort();if(t1=HLP.multPowMod(this.g3,msg[3],msg[0],msg[2],N),t2=HLP.multPowMod(G,msg[3],this.g2,msg[4],N),t2=BigInt.multMod(t2,BigInt.powMod(msg[1],msg[2],N),N),!HLP.ZKP(6,msg[2],t1,t2))return this.abort();if(t3=HLP.multPowMod(G,msg[7],this.g3ao,msg[6],N),this.QoQ=BigInt.divMod(msg[1],this.q,N),t4=HLP.multPowMod(this.QoQ,msg[7],msg[5],msg[6],N),!HLP.ZKP(7,msg[6],t3,t4))return this.abort();this.computeR(),r7=HLP.randomExponent(),tmp2=BigInt.powMod(this.QoQ,r7,N),cR=HLP.smpHash(8,BigInt.powMod(G,r7,N),tmp2),d7=this.computeD(r7,this.a3,cR),send=HLP.packINT(3)+HLP.packMPIs([this.r,cR,d7]),send=HLP.packTLV(5,send),rab=this.computeRab(msg[5]),trust=!!BigInt.equals(rab,BigInt.divMod(msg[0],this.p,N)),this.trigger("trust",[trust,"answered"]),this.init();break;case CONST.SMPSTATE_EXPECT4:return HLP.debug.call(this,"smp tlv 5"),ms=HLP.readLen(msg.msg.substr(0,4)),3!==ms?this.abort():(msg=HLP.unpackMPIs(3,msg.msg.substring(4)),HLP.checkGroup(msg[0],N_MINUS_2)?(t3=HLP.multPowMod(G,msg[2],this.g3ao,msg[1],N),t4=HLP.multPowMod(this.QoQ,msg[2],msg[0],msg[1],N),HLP.ZKP(8,msg[1],t3,t4)?(rab=this.computeRab(msg[0]),trust=!!BigInt.equals(rab,this.PoP),this.trigger("trust",[trust,"asked"]),void this.init()):this.abort()):this.abort())}this.sendMsg(send)},SM.prototype.sendMsg=function(send){this.trigger("send",[this.ssid,"\x00"+send])},SM.prototype.rcvSecret=function(secret,question){HLP.debug.call(this,"receive secret");var fn,our=!1;this.smpstate===CONST.SMPSTATE_EXPECT0?fn=this.answer:(fn=this.initiate,our=!0),this.makeSecret(our,secret),fn.call(this,question)},SM.prototype.answer=function(){HLP.debug.call(this,"smp answer");var r4=HLP.randomExponent();this.computePQ(r4);var r5=HLP.randomExponent(),r6=HLP.randomExponent(),tmp=HLP.multPowMod(G,r5,this.g2,r6,N),cP=HLP.smpHash(5,BigInt.powMod(this.g3,r5,N),tmp),d5=this.computeD(r5,r4,cP),d6=this.computeD(r6,this.secret,cP);this.smpstate=CONST.SMPSTATE_EXPECT3;var send=HLP.packINT(11)+HLP.packMPIs([this.g2a,this.c2,this.d2,this.g3a,this.c3,this.d3,this.p,this.q,cP,d5,d6]);this.sendMsg(HLP.packTLV(3,send))
549
cd56f2b0e85b browser_side: disable OTR if the browser is too old to offer crypto.getRandomValues (CSPRNG)
souliane <souliane@mailoo.org>
parents: 526
diff changeset
40 },SM.prototype.initiate=function(question){HLP.debug.call(this,"smp initiate"),this.smpstate!==CONST.SMPSTATE_EXPECT1&&this.abort(),this.makeG2s();var r2=HLP.randomExponent(),r3=HLP.randomExponent();this.c2=this.computeC(1,r2),this.c3=this.computeC(2,r3),this.d2=this.computeD(r2,this.a2,this.c2),this.d3=this.computeD(r3,this.a3,this.c3),this.smpstate=CONST.SMPSTATE_EXPECT2;var send="",type=2;question&&(send+=question,send+="\x00",type=7),send+=HLP.packINT(6)+HLP.packMPIs([this.g2a,this.c2,this.d2,this.g3a,this.c3,this.d3]),this.sendMsg(HLP.packTLV(type,send))},SM.prototype.abort=function(){this.init(),this.sendMsg(HLP.packTLV(6,"")),this.trigger("abort")}}.call(this),function(){"use strict";function OTR(options){if(!(this instanceof OTR))return new OTR(options);if(options=options||{},options.priv&&!(options.priv instanceof DSA))throw new Error("Requires long-lived DSA key.");if(this.priv=options.priv?options.priv:new DSA,this.fragment_size=options.fragment_size||0,this.fragment_size<0)throw new Error("Fragment size must be a positive integer.");if(this.send_interval=options.send_interval||0,this.send_interval<0)throw new Error("Send interval must be a positive integer.");this.outgoing=[],this.our_instance_tag=options.instance_tag||OTR.makeInstanceTag(),this.debug=!!options.debug,this.smw=options.smw,this.init();var self=this;["sendMsg","receiveMsg"].forEach(function(meth){self[meth]=self[meth].bind(self)}),EventEmitter.call(this)}var CryptoJS,BigInt,EventEmitter,Worker,SMWPath,CONST,HLP,Parse,AKE,SM,DSA,root=this;"undefined"!=typeof module&&module.exports?(module.exports=OTR,CryptoJS=require("../vendor/crypto.js"),BigInt=require("../vendor/bigint.js"),EventEmitter=require("../vendor/eventemitter.js"),SMWPath=require("path").join(__dirname,"/sm-webworker.js"),CONST=require("./const.js"),HLP=require("./helpers.js"),Parse=require("./parse.js"),AKE=require("./ake.js"),SM=require("./sm.js"),DSA=require("./dsa.js"),OTR.CONST=CONST):(Object.keys(root.OTR).forEach(function(k){OTR[k]=root.OTR[k]}),root.OTR=OTR,CryptoJS=root.CryptoJS,BigInt=root.BigInt,EventEmitter=root.EventEmitter,Worker=root.Worker,SMWPath="sm-webworker.js",CONST=OTR.CONST,HLP=OTR.HLP,Parse=OTR.Parse,AKE=OTR.AKE,SM=OTR.SM,DSA=root.DSA);var G=BigInt.str2bigInt(CONST.G,10),N=BigInt.str2bigInt(CONST.N,16),MAX_INT=Math.pow(2,53)-1,MAX_UINT=Math.pow(2,31)-1;HLP.extend(OTR,EventEmitter),OTR.prototype.init=function(){this.msgstate=CONST.MSGSTATE_PLAINTEXT,this.authstate=CONST.AUTHSTATE_NONE,this.ALLOW_V2=!0,this.ALLOW_V3=!0,this.REQUIRE_ENCRYPTION=!1,this.SEND_WHITESPACE_TAG=!1,this.WHITESPACE_START_AKE=!1,this.ERROR_START_AKE=!1,Parse.initFragment(this),this.their_y=null,this.their_old_y=null,this.their_keyid=0,this.their_priv_pk=null,this.their_instance_tag="\x00\x00\x00\x00",this.our_dh=this.dh(),this.our_old_dh=this.dh(),this.our_keyid=2,this.sessKeys=[new Array(2),new Array(2)],this.storedMgs=[],this.oldMacKeys=[],this.sm=null,this._akeInit(),this.receivedPlaintext=!1},OTR.prototype._akeInit=function(){this.ake=new AKE(this),this.transmittedRS=!1,this.ssid=null},OTR.prototype._SMW=function(otr,reqs){this.otr=otr;var opts={path:SMWPath,seed:BigInt.getSeed};"object"==typeof otr.smw&&Object.keys(otr.smw).forEach(function(k){opts[k]=otr.smw[k]}),"undefined"!=typeof module&&module.exports&&(Worker=require("webworker-threads").Worker),this.worker=new Worker(opts.path);var self=this;this.worker.onmessage=function(e){var d=e.data;d&&self.trigger(d.method,d.args)},this.worker.postMessage({type:"seed",seed:opts.seed(),imports:opts.imports}),this.worker.postMessage({type:"init",reqs:reqs})},HLP.extend(OTR.prototype._SMW,EventEmitter),["handleSM","rcvSecret","abort"].forEach(function(m){OTR.prototype._SMW.prototype[m]=function(){this.worker.postMessage({type:"method",method:m,args:Array.prototype.slice.call(arguments,0)})}}),OTR.prototype._smInit=function(){var reqs={ssid:this.ssid,our_fp:this.priv.fingerprint(),their_fp:this.their_priv_pk.fingerprint(),debug:this.debug};this.smw?(this.sm&&this.sm.worker.terminate(),this.sm=new this._SMW(this,reqs)):this.sm=new SM(reqs);var self=this;["trust","abort","question"].forEach(function(e){self.sm.on(e,function(){self.trigger("smp",[e].concat(Array.prototype.slice.call(arguments)))})}),this.sm.on("send",function(ssid,send){self.ssid===ssid&&(send=self.prepareMsg(send),self.io(send))})},OTR.prototype.io=function(msg,meta){msg=[].concat(msg).map(function(m){return{msg:m,meta:meta}}),this.outgoing=this.outgoing.concat(msg);var self=this;!function send(first){if(!first){if(!self.outgoing.length)return;var elem=self.outgoing.shift();self.trigger("io",[elem.msg,elem.meta])}setTimeout(send,first?0:self.send_interval)}(!0)},OTR.prototype.dh=function(){var keys={privateKey:BigInt.randBigInt(320)};return keys.publicKey=BigInt.powMod(G,keys.privateKey,N),keys},OTR.prototype.DHSession=function DHSession(our_dh,their_y){if(!(this instanceof DHSession))return new DHSession(our_dh,their_y);var s=BigInt.powMod(their_y,our_dh.privateKey,N),secbytes=HLP.packMPI(s);this.id=HLP.mask(HLP.h2("\x00",secbytes),0,64);var sq=BigInt.greater(our_dh.publicKey,their_y),sendbyte=sq?"":"",rcvbyte=sq?"":"";this.sendenc=HLP.mask(HLP.h1(sendbyte,secbytes),0,128),this.sendmac=CryptoJS.SHA1(CryptoJS.enc.Latin1.parse(this.sendenc)),this.sendmac=this.sendmac.toString(CryptoJS.enc.Latin1),this.rcvenc=HLP.mask(HLP.h1(rcvbyte,secbytes),0,128),this.rcvmac=CryptoJS.SHA1(CryptoJS.enc.Latin1.parse(this.rcvenc)),this.rcvmac=this.rcvmac.toString(CryptoJS.enc.Latin1),this.rcvmacused=!1,this.extra_symkey=HLP.h2("ÿ",secbytes),this.send_counter=0,this.rcv_counter=0},OTR.prototype.rotateOurKeys=function(){var self=this;this.sessKeys[1].forEach(function(sk){sk&&sk.rcvmacused&&self.oldMacKeys.push(sk.rcvmac)}),this.our_old_dh=this.our_dh,this.our_dh=this.dh(),this.our_keyid+=1,this.sessKeys[1][0]=this.sessKeys[0][0],this.sessKeys[1][1]=this.sessKeys[0][1],this.sessKeys[0]=[this.their_y?new this.DHSession(this.our_dh,this.their_y):null,this.their_old_y?new this.DHSession(this.our_dh,this.their_old_y):null]},OTR.prototype.rotateTheirKeys=function(their_y){this.their_keyid+=1;var self=this;this.sessKeys.forEach(function(sk){sk[1]&&sk[1].rcvmacused&&self.oldMacKeys.push(sk[1].rcvmac)}),this.their_old_y=this.their_y,this.sessKeys[0][1]=this.sessKeys[0][0],this.sessKeys[1][1]=this.sessKeys[1][0],this.their_y=their_y,this.sessKeys[0][0]=new this.DHSession(this.our_dh,this.their_y),this.sessKeys[1][0]=new this.DHSession(this.our_old_dh,this.their_y)},OTR.prototype.prepareMsg=function(msg,esk){if(this.msgstate!==CONST.MSGSTATE_ENCRYPTED||0===this.their_keyid)return this.error("Not ready to encrypt.");var sessKeys=this.sessKeys[1][0];if(sessKeys.send_counter>=MAX_INT)return this.error("Should have rekeyed by now.");sessKeys.send_counter+=1;var ctr=HLP.packCtr(sessKeys.send_counter),send=this.ake.otr_version+"",v3=this.ake.otr_version===CONST.OTR_VERSION_3;if(v3&&(send+=this.our_instance_tag,send+=this.their_instance_tag),send+="\x00",send+=HLP.packINT(this.our_keyid-1),send+=HLP.packINT(this.their_keyid),send+=HLP.packMPI(this.our_dh.publicKey),send+=ctr.substring(0,8),Math.ceil(msg.length/8)>=MAX_UINT)return this.error("Message is too long.");var aes=HLP.encryptAes(CryptoJS.enc.Latin1.parse(msg),sessKeys.sendenc,ctr);return send+=HLP.packData(aes),send+=HLP.make1Mac(send,sessKeys.sendmac),send+=HLP.packData(this.oldMacKeys.splice(0).join("")),send=HLP.wrapMsg(send,this.fragment_size,v3,this.our_instance_tag,this.their_instance_tag),send[0]?this.error(send[0]):(esk&&this.trigger("file",["send",sessKeys.extra_symkey,esk]),send[1])},OTR.prototype.handleDataMsg=function(msg){var vt=msg.version+msg.type;this.ake.otr_version===CONST.OTR_VERSION_3&&(vt+=msg.instance_tags);var types=["BYTE","INT","INT","MPI","CTR","DATA","MAC","DATA"];msg=HLP.splitype(types,msg.msg);var ign=""===msg[0];if(this.msgstate!==CONST.MSGSTATE_ENCRYPTED||8!==msg.length)return void(ign||this.error("Received an unreadable encrypted message.",!0));var our_keyid=this.our_keyid-HLP.readLen(msg[2]),their_keyid=this.their_keyid-HLP.readLen(msg[1]);if(0>our_keyid||our_keyid>1)return void(ign||this.error("Not of our latest keys.",!0));if(0>their_keyid||their_keyid>1)return void(ign||this.error("Not of your latest keys.",!0));var their_y=their_keyid?this.their_old_y:this.their_y;if(1===their_keyid&&!their_y)return void(ign||this.error("Do not have that key."));var sessKeys=this.sessKeys[our_keyid][their_keyid],ctr=HLP.unpackCtr(msg[4]);if(ctr<=sessKeys.rcv_counter)return void(ign||this.error("Counter in message is not larger."));sessKeys.rcv_counter=ctr,vt+=msg.slice(0,6).join("");var vmac=HLP.make1Mac(vt,sessKeys.rcvmac);if(!HLP.compare(msg[6],vmac))return void(ign||this.error("MACs do not match."));sessKeys.rcvmacused=!0;var out=HLP.decryptAes(msg[5].substring(4),sessKeys.rcvenc,HLP.padCtr(msg[4]));out=out.toString(CryptoJS.enc.Latin1),our_keyid||this.rotateOurKeys(),their_keyid||this.rotateTheirKeys(HLP.readMPI(msg[3]));var ind=out.indexOf("\x00");return~ind&&(this.handleTLVs(out.substring(ind+1),sessKeys),out=out.substring(0,ind)),out=CryptoJS.enc.Latin1.parse(out),out.toString(CryptoJS.enc.Utf8)},OTR.prototype.handleTLVs=function(tlvs,sessKeys){for(var type,len,msg;tlvs.length&&(type=HLP.unpackSHORT(tlvs.substr(0,2)),len=HLP.unpackSHORT(tlvs.substr(2,2)),msg=tlvs.substr(4,len),!(msg.length<len));){switch(type){case 1:this.msgstate=CONST.MSGSTATE_FINISHED,this.trigger("status",[CONST.STATUS_END_OTR]);break;case 2:case 3:case 4:case 5:case 6:case 7:if(this.msgstate!==CONST.MSGSTATE_ENCRYPTED)return void(this.sm&&this.sm.abort());this.sm||this._smInit(),this.sm.handleSM({msg:msg,type:type});break;case 8:msg=msg.substring(4),msg=CryptoJS.enc.Latin1.parse(msg),msg=msg.toString(CryptoJS.enc.Utf8),this.trigger("file",["receive",sessKeys.extra_symkey,msg])}tlvs=tlvs.substring(4+len)}},OTR.prototype.smpSecret=function(secret,question){return this.msgstate!==CONST.MSGSTATE_ENCRYPTED?this.error("Must be encrypted for SMP."):"string"!=typeof secret||secret.length<1?this.error("Secret is required."):(this.sm||this._smInit(),secret=CryptoJS.enc.Utf8.parse(secret).toString(CryptoJS.enc.Latin1),question=CryptoJS.enc.Utf8.parse(question).toString(CryptoJS.enc.Latin1),void this.sm.rcvSecret(secret,question))},OTR.prototype.sendQueryMsg=function(){var versions={},msg=CONST.OTR_TAG;this.ALLOW_V2&&(versions[2]=!0),this.ALLOW_V3&&(versions[3]=!0);var vs=Object.keys(versions);vs.length&&(msg+="v",vs.forEach(function(v){"1"!==v&&(msg+=v)}),msg+="?"),this.io(msg),this.trigger("status",[CONST.STATUS_SEND_QUERY])},OTR.prototype.sendMsg=function(msg,meta){switch((this.REQUIRE_ENCRYPTION||this.msgstate!==CONST.MSGSTATE_PLAINTEXT)&&(msg=CryptoJS.enc.Utf8.parse(msg),msg=msg.toString(CryptoJS.enc.Latin1)),this.msgstate){case CONST.MSGSTATE_PLAINTEXT:if(this.REQUIRE_ENCRYPTION)return this.storedMgs.push({msg:msg,meta:meta}),void this.sendQueryMsg();this.SEND_WHITESPACE_TAG&&!this.receivedPlaintext&&(msg+=CONST.WHITESPACE_TAG,this.ALLOW_V3&&(msg+=CONST.WHITESPACE_TAG_V3),this.ALLOW_V2&&(msg+=CONST.WHITESPACE_TAG_V2));break;case CONST.MSGSTATE_FINISHED:return this.storedMgs.push({msg:msg,meta:meta}),void this.error("Message cannot be sent at this time.");case CONST.MSGSTATE_ENCRYPTED:msg=this.prepareMsg(msg);break;default:throw new Error("Unknown message state.")}msg&&this.io(msg,meta)},OTR.prototype.receiveMsg=function(msg){if(msg=Parse.parseMsg(this,msg)){switch(msg.cls){case"error":return void this.error(msg.msg);case"ake":if(msg.version===CONST.OTR_VERSION_3&&this.checkInstanceTags(msg.instance_tags))return;return void this.ake.handleAKE(msg);case"data":if(msg.version===CONST.OTR_VERSION_3&&this.checkInstanceTags(msg.instance_tags))return;msg.msg=this.handleDataMsg(msg),msg.encrypted=!0;break;case"query":this.msgstate===CONST.MSGSTATE_ENCRYPTED&&this._akeInit(),this.doAKE(msg);break;default:(this.REQUIRE_ENCRYPTION||this.msgstate!==CONST.MSGSTATE_PLAINTEXT)&&this.error("Received an unencrypted message."),this.receivedPlaintext=!0,this.WHITESPACE_START_AKE&&msg.ver.length>0&&this.doAKE(msg)}msg.msg&&this.trigger("ui",[msg.msg,!!msg.encrypted])}},OTR.prototype.checkInstanceTags=function(it){var their_it=HLP.readLen(it.substr(0,4)),our_it=HLP.readLen(it.substr(4,4));if(our_it&&our_it!==HLP.readLen(this.our_instance_tag))return!0;if(HLP.readLen(this.their_instance_tag)){if(HLP.readLen(this.their_instance_tag)!==their_it)return!0}else{if(100>their_it)return!0;this.their_instance_tag=HLP.packINT(their_it)}},OTR.prototype.doAKE=function(msg){this.ALLOW_V3&&~msg.ver.indexOf(CONST.OTR_VERSION_3)?this.ake.initiateAKE(CONST.OTR_VERSION_3):this.ALLOW_V2&&~msg.ver.indexOf(CONST.OTR_VERSION_2)?this.ake.initiateAKE(CONST.OTR_VERSION_2):this.error("OTR conversation requested, but no compatible protocol version found.")},OTR.prototype.error=function(err,send){return send?(this.debug||(err="An OTR error has occurred."),err="?OTR Error:"+err,void this.io(err)):void this.trigger("error",[err])},OTR.prototype.sendStored=function(){var self=this;this.storedMgs.splice(0).forEach(function(elem){var msg=self.prepareMsg(elem.msg);self.io(msg,elem.meta)})},OTR.prototype.sendFile=function(filename){if(this.msgstate!==CONST.MSGSTATE_ENCRYPTED)return this.error("Not ready to encrypt.");if(this.ake.otr_version!==CONST.OTR_VERSION_3)return this.error("Protocol v3 required.");if(!filename)return this.error("Please specify a filename.");var l1name=CryptoJS.enc.Utf8.parse(filename);if(l1name=l1name.toString(CryptoJS.enc.Latin1),l1name.length>=65532)return this.error("filename is too long.");var msg="\x00";msg+="\x00\b",msg+=HLP.packSHORT(4+l1name.length),msg+="\x00\x00\x00",msg+=l1name,msg=this.prepareMsg(msg,filename),this.io(msg)},OTR.prototype.endOtr=function(){this.msgstate===CONST.MSGSTATE_ENCRYPTED&&(this.sendMsg("\x00\x00\x00\x00"),this.sm&&(this.smw&&this.sm.worker.terminate(),this.sm=null)),this.msgstate=CONST.MSGSTATE_PLAINTEXT,this.receivedPlaintext=!1,this.trigger("status",[CONST.STATUS_END_OTR])},OTR.makeInstanceTag=function(){var num=BigInt.randBigInt(32);return BigInt.greater(BigInt.str2bigInt("100",16),num)?OTR.makeInstanceTag():HLP.packINT(parseInt(BigInt.bigInt2str(num,10),10))}}.call(this),{OTR:this.OTR,DSA:this.DSA}});
cd56f2b0e85b browser_side: disable OTR if the browser is too old to offer crypto.getRandomValues (CSPRNG)
souliane <souliane@mailoo.org>
parents: 526
diff changeset
41
cd56f2b0e85b browser_side: disable OTR if the browser is too old to offer crypto.getRandomValues (CSPRNG)
souliane <souliane@mailoo.org>
parents: 526
diff changeset
42 };