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13 lines
46 KiB
JavaScript
13 lines
46 KiB
JavaScript
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/*!
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otr.js v0.2.14 - 2015-01-16
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(c) 2015 - Arlo Breault <arlolra@gmail.com>
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Freely distributed under the MPL v2.0 license.
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This file is concatenated for the browser.
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Please see: https://github.com/arlolra/otr
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*/
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!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";function intCompare(x,y){var z=~(x^y);return z&=z>>16,z&=z>>8,z&=z>>4,z&=z>>2,z&=z>>1,1&z}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 intCompare(result,0)},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 BigI
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this.sendMsg(HLP.packTLV(3,send))},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 OTRCB(cb){this.cb=cb}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.termina
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