author | Giulio Cesare Solaroli <giulio.cesare@clipperz.com> | 2014-06-02 11:39:16 (UTC) |
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committer | Giulio Cesare Solaroli <giulio.cesare@clipperz.com> | 2014-06-02 16:35:38 (UTC) |
commit | 0422224521f62da210d1ae6ee15ecdf09f47f1f8 (patch) (side-by-side diff) | |
tree | df7c0394fbcd1f8bc588ca8aab3ee83f5dc9f0cf /frontend/gamma/js/Clipperz/PM/Proxy/Proxy.Offline.DataStore.js | |
parent | 7fdb41fa2b1f621636882ad9059c1f3ecfb74083 (diff) | |
download | clipperz-0422224521f62da210d1ae6ee15ecdf09f47f1f8.zip clipperz-0422224521f62da210d1ae6ee15ecdf09f47f1f8.tar.gz clipperz-0422224521f62da210d1ae6ee15ecdf09f47f1f8.tar.bz2 |
Fixed authentication procedure for offline copy
Diffstat (limited to 'frontend/gamma/js/Clipperz/PM/Proxy/Proxy.Offline.DataStore.js') (more/less context) (show whitespace changes)
-rw-r--r-- | frontend/gamma/js/Clipperz/PM/Proxy/Proxy.Offline.DataStore.js | 27 |
1 files changed, 21 insertions, 6 deletions
diff --git a/frontend/gamma/js/Clipperz/PM/Proxy/Proxy.Offline.DataStore.js b/frontend/gamma/js/Clipperz/PM/Proxy/Proxy.Offline.DataStore.js index b806cb7..e5f68a8 100644 --- a/frontend/gamma/js/Clipperz/PM/Proxy/Proxy.Offline.DataStore.js +++ b/frontend/gamma/js/Clipperz/PM/Proxy/Proxy.Offline.DataStore.js @@ -308,71 +308,86 @@ Clipperz.Base.extend(Clipperz.PM.Proxy.Offline.DataStore, Object, { //------------------------------------------------------------------------- '_handshake': function(aConnection, someParameters) { var result; var nextTollRequestType; result = {}; if (someParameters.message == "connect") { var userData; var randomBytes; var v; userData = this.data()['users'][someParameters.parameters.C]; if ((typeof(userData) != 'undefined') && (userData['version'] == someParameters.version)) { aConnection['userData'] = userData; aConnection['C'] = someParameters.parameters.C; } else { aConnection['userData'] = this.data()['users']['catchAllUser']; } randomBytes = Clipperz.Crypto.Base.generateRandomSeed(); aConnection['b'] = new Clipperz.Crypto.BigInt(randomBytes, 16); v = new Clipperz.Crypto.BigInt(aConnection['userData']['v'], 16); - aConnection['B'] = v.add(Clipperz.Crypto.SRP.g().powerModule(aConnection['b'], Clipperz.Crypto.SRP.n())); + aConnection['B'] = (Clipperz.Crypto.SRP.k().multiply(v)).add(Clipperz.Crypto.SRP.g().powerModule(aConnection['b'], Clipperz.Crypto.SRP.n())); aConnection['A'] = someParameters.parameters.A; result['s'] = aConnection['userData']['s']; result['B'] = aConnection['B'].asString(16); nextTollRequestType = 'CONNECT'; } else if (someParameters.message == "credentialCheck") { - var v, u, S, A, K, M1; + var v, u, s, S, A, K, M1; + var stringHash = function (aValue) { + return Clipperz.PM.Crypto.encryptingFunctions.versions[someParameters.version].hash(new Clipperz.ByteArray(aValue)).toHexString().substring(2); + }; v = new Clipperz.Crypto.BigInt(aConnection['userData']['v'], 16); - u = new Clipperz.Crypto.BigInt(Clipperz.PM.Crypto.encryptingFunctions.versions[someParameters.version].hash(new Clipperz.ByteArray(aConnection['B'].asString(10))).toHexString(), 16); A = new Clipperz.Crypto.BigInt(aConnection['A'], 16); + u = new Clipperz.Crypto.BigInt(Clipperz.PM.Crypto.encryptingFunctions.versions[someParameters.version].hash(new Clipperz.ByteArray(A.asString(10) + aConnection['B'].asString(10))).toHexString(), 16); + s = new Clipperz.Crypto.BigInt(aConnection['userData']['s'], 16); S = (A.multiply(v.powerModule(u, Clipperz.Crypto.SRP.n()))).powerModule(aConnection['b'], Clipperz.Crypto.SRP.n()); - K = Clipperz.PM.Crypto.encryptingFunctions.versions[someParameters.version].hash(new Clipperz.ByteArray(S.asString(10))).toHexString().slice(2); + K = stringHash(S.asString(10)); - M1 = Clipperz.PM.Crypto.encryptingFunctions.versions[someParameters.version].hash(new Clipperz.ByteArray(A.asString(10) + aConnection['B'].asString(10) + K)).toHexString().slice(2); + M1 = stringHash( + "597626870978286801440197562148588907434001483655788865609375806439877501869636875571920406529" + + stringHash(aConnection['C']) + + s.asString(10) + + A.asString(10) + + aConnection['B'].asString(10) + + K + ); if (someParameters.parameters.M1 == M1) { var M2; - M2 = Clipperz.PM.Crypto.encryptingFunctions.versions[someParameters.version].hash(new Clipperz.ByteArray(A.asString(10) + someParameters.parameters.M1 + K)).toHexString().slice(2); + M2 = stringHash( + A.asString(10) + + someParameters.parameters.M1 + + K + ); result['M2'] = M2; } else { throw new Error("Client checksum verification failed! Expected <" + M1 + ">, received <" + someParameters.parameters.M1 + ">.", "Error"); } nextTollRequestType = 'MESSAGE'; } else if (someParameters.message == "oneTimePassword") { var otpData; otpData = this.data()['onetimePasswords'][someParameters.parameters.oneTimePasswordKey]; try { if (typeof(otpData) != 'undefined') { if (otpData['status'] == 'ACTIVE') { if (otpData['key_checksum'] == someParameters.parameters.oneTimePasswordKeyChecksum) { result = { 'data': otpData['data'], 'version': otpData['version'] } otpData['status'] = 'REQUESTED'; } else { otpData['status'] = 'DISABLED'; throw "The requested One Time Password has been disabled, due to a wrong keyChecksum"; |