First version of the newly restructured repository

1 files changed, 331 insertions, 0 deletions

diff --git a/frontend/gamma/js/Clipperz/Crypto/SRP.js b/frontend/gamma/js/Clipperz/Crypto/SRP.js
new file mode 100644
index 0000000..0eef6ec
--- a/dev/null
+++ b/frontend/gamma/js/Clipperz/Crypto/SRP.js
@@ -0,0 +1,331 @@
+/*
+
+Copyright 2008-2011 Clipperz Srl
+
+This file is part of Clipperz's Javascript Crypto Library.
+Javascript Crypto Library provides web developers with an extensive
+and efficient set of cryptographic functions. The library aims to
+obtain maximum execution speed while preserving modularity and
+reusability.
+For further information about its features and functionalities please
+refer to http://www.clipperz.com
+
+* Javascript Crypto Library is free software: you can redistribute
+  it and/or modify it under the terms of the GNU Affero General Public
+  License as published by the Free Software Foundation, either version
+  3 of the License, or (at your option) any later version.
+
+* Javascript Crypto Library is distributed in the hope that it will
+  be useful, but WITHOUT ANY WARRANTY; without even the implied
+  warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+  See the GNU Affero General Public License for more details.
+
+* You should have received a copy of the GNU Affero General Public
+  License along with Javascript Crypto Library.  If not, see
+  <http://www.gnu.org/licenses/>.
+
+*/
+
+try { if (typeof(Clipperz.ByteArray) == 'undefined') { throw ""; }} catch (e) {
+	throw "Clipperz.Crypto.PRNG depends on Clipperz.ByteArray!";
+}  
+
+try { if (typeof(Clipperz.Crypto.BigInt) == 'undefined') { throw ""; }} catch (e) {
+	throw "Clipperz.Crypto.SRP depends on Clipperz.Crypto.BigInt!";
+}  
+
+try { if (typeof(Clipperz.Crypto.PRNG) == 'undefined') { throw ""; }} catch (e) {
+	throw "Clipperz.Crypto.SRP depends on Clipperz.Crypto.PRNG!";
+}  
+
+if (typeof(Clipperz.Crypto.SRP) == 'undefined') { Clipperz.Crypto.SRP = {}; }
+
+Clipperz.Crypto.SRP.VERSION = "0.1";
+Clipperz.Crypto.SRP.NAME = "Clipperz.Crypto.SRP";
+
+//#############################################################################
+
+MochiKit.Base.update(Clipperz.Crypto.SRP, {
+
+	'_n': null,
+	'_g': null,
+	//-------------------------------------------------------------------------
+
+	'n': function() {
+		if (Clipperz.Crypto.SRP._n == null) {
+		 	Clipperz.Crypto.SRP._n = new Clipperz.Crypto.BigInt("115b8b692e0e045692cf280b436735c77a5a9e8a9e7ed56c965f87db5b2a2ece3", 16);
+		}
+		
+		return Clipperz.Crypto.SRP._n;
+	},
+
+	//-------------------------------------------------------------------------
+
+	'g': function() {
+		if (Clipperz.Crypto.SRP._g == null) {
+			Clipperz.Crypto.SRP._g = new Clipperz.Crypto.BigInt(2);	//	eventually 5 (as suggested on the Diffi-Helmann documentation)
+		}
+		
+		return Clipperz.Crypto.SRP._g;
+	},
+
+	//-----------------------------------------------------------------------------
+
+	'exception': {
+		'InvalidValue': new MochiKit.Base.NamedError("Clipperz.Crypto.SRP.exception.InvalidValue") 
+	},
+
+	//-------------------------------------------------------------------------
+	__syntaxFix__: "syntax fix"
+
+});
+
+//#############################################################################
+//
+//		S R P   C o n n e c t i o n     version 1.0
+//
+//=============================================================================
+Clipperz.Crypto.SRP.Connection = function (args) {
+	args = args || {};
+
+	this._C = args.C;
+	this._P = args.P;
+	this.hash = args.hash;
+
+	this._a = null;
+	this._A = null;
+	
+	this._s = null;
+	this._B = null;
+
+	this._x = null;
+	
+	this._u = null;
+	this._K = null;
+	this._M1 = null;
+	this._M2 = null;
+	
+	this._sessionKey = null;
+
+	return this;
+}
+
+Clipperz.Crypto.SRP.Connection.prototype = MochiKit.Base.update(null, {
+
+	'toString': function () {
+		return "Clipperz.Crypto.SRP.Connection (username: " + this.username() + "). Status: " + this.statusDescription();
+	},
+
+	//-------------------------------------------------------------------------
+
+	'C': function () {
+		return this._C;
+	},
+
+	//-------------------------------------------------------------------------
+
+	'P': function () {
+		return this._P;
+	},
+
+	//-------------------------------------------------------------------------
+
+	'a': function () {
+		if (this._a == null) {
+			this._a = new Clipperz.Crypto.BigInt(Clipperz.Crypto.PRNG.defaultRandomGenerator().getRandomBytes(32).toHexString().substring(2), 16);
+//			this._a = new Clipperz.Crypto.BigInt("37532428169486597638072888476611365392249575518156687476805936694442691012367", 10);
+//MochiKit.Logging.logDebug("SRP a: " + this._a);
+		}
+		
+		return this._a;
+	},
+
+	//-------------------------------------------------------------------------
+
+	'A': function () {
+		if (this._A == null) {
+			//	Warning: this value should be strictly greater than zero: how should we perform this check?
+			this._A = Clipperz.Crypto.SRP.g().powerModule(this.a(), Clipperz.Crypto.SRP.n());
+			
+			if (this._A.equals(0)) {
+MochiKit.Logging.logError("Clipperz.Crypto.SRP.Connection: trying to set 'A' to 0.");
+				throw Clipperz.Crypto.SRP.exception.InvalidValue;
+			}
+//MochiKit.Logging.logDebug("SRP A: " + this._A);
+		}
+		
+		return this._A;
+	},
+
+	//-------------------------------------------------------------------------
+
+	's': function () {
+		return this._s;
+//MochiKit.Logging.logDebug("SRP s: " + this._S);
+	},
+
+	'set_s': function(aValue) {
+		this._s = aValue;
+	},
+	
+	//-------------------------------------------------------------------------
+
+	'B': function () {
+		return this._B;
+	},
+
+	'set_B': function(aValue) {
+		//	Warning: this value should be strictly greater than zero: how should we perform this check?
+		if (! aValue.equals(0)) {
+			this._B = aValue;
+//MochiKit.Logging.logDebug("SRP B: " + this._B);
+		} else {
+MochiKit.Logging.logError("Clipperz.Crypto.SRP.Connection: trying to set 'B' to 0.");
+			throw Clipperz.Crypto.SRP.exception.InvalidValue;
+		}
+	},
+	
+	//-------------------------------------------------------------------------
+
+	'x': function () {
+		if (this._x == null) {
+			this._x = new Clipperz.Crypto.BigInt(this.stringHash(this.s().asString(16, 64) + this.P()), 16);
+//MochiKit.Logging.logDebug("SRP x: " + this._x);
+		}
+		
+		return this._x;
+	},
+
+	//-------------------------------------------------------------------------
+
+	'u': function () {
+		if (this._u == null) {
+			this._u = new Clipperz.Crypto.BigInt(this.stringHash(this.B().asString()), 16);
+//MochiKit.Logging.logDebug("SRP u: " + this._u);
+		}
+		
+		return this._u;
+	},
+
+	//-------------------------------------------------------------------------
+
+	'S': function () {
+		if (this._S == null) {
+			var bigint;
+			var	srp;
+
+			bigint = Clipperz.Crypto.BigInt;
+			srp = 	 Clipperz.Crypto.SRP;
+
+			this._S =	bigint.powerModule(
+								bigint.subtract(this.B(), bigint.powerModule(srp.g(), this.x(), srp.n())),
+								bigint.add(this.a(), bigint.multiply(this.u(), this.x())),
+								srp.n()
+						)
+//MochiKit.Logging.logDebug("SRP S: " + this._S);
+		}
+		
+		return this._S;
+	},
+
+	//-------------------------------------------------------------------------
+
+	'K': function () {
+		if (this._K == null) {
+			this._K = this.stringHash(this.S().asString());
+//MochiKit.Logging.logDebug("SRP K: " + this._K);
+		}
+		
+		return this._K;
+	},
+
+	//-------------------------------------------------------------------------
+
+	'M1': function () {
+		if (this._M1 == null) {
+			this._M1 = this.stringHash(this.A().asString(10) + this.B().asString(10) + this.K());
+//MochiKit.Logging.logDebug("SRP M1: " + this._M1);
+		}
+		
+		return this._M1;
+	},
+
+	//-------------------------------------------------------------------------
+
+	'M2': function () {
+		if (this._M2 == null) {
+			this._M2 = this.stringHash(this.A().asString(10) + this.M1() + this.K());
+//MochiKit.Logging.logDebug("SRP M2: " + this._M2);
+		}
+		
+		return this._M2;
+	},
+
+	//=========================================================================
+
+	'serverSideCredentialsWithSalt': function(aSalt) {
+		var result;
+		var s, x, v;
+		
+		s = aSalt;
+		x = this.stringHash(s + this.P());
+		v = Clipperz.Crypto.SRP.g().powerModule(new Clipperz.Crypto.BigInt(x, 16), Clipperz.Crypto.SRP.n());
+
+		result = {};
+		result['C'] = this.C();
+		result['s'] = s;
+		result['v'] = v.asString(16);
+		
+		return result;
+	},
+	
+	'serverSideCredentials': function() {
+		var result;
+		var s;
+		
+		s = Clipperz.Crypto.PRNG.defaultRandomGenerator().getRandomBytes(32).toHexString().substring(2);
+
+		result = this.serverSideCredentialsWithSalt(s);
+		
+		return result;
+	},
+	
+	//=========================================================================
+/*
+	'computeServerSide_S': function(b) {
+		var result;
+		var v;
+		var bigint;
+		var	srp;
+
+		bigint = Clipperz.Crypto.BigInt;
+		srp = 	 Clipperz.Crypto.SRP;
+
+		v = new Clipperz.Crypto.BigInt(srpConnection.serverSideCredentialsWithSalt(this.s().asString(16, 64)).v, 16);
+//		_S =  (this.A().multiply(this.v().modPow(this.u(), this.n()))).modPow(this.b(), this.n());
+		result = bigint.powerModule(
+					bigint.multiply(
+						this.A(),
+						bigint.powerModule(v, this.u(), srp.n())
+					), new Clipperz.Crypto.BigInt(b, 10), srp.n()
+				);
+
+		return result;
+	},
+*/
+	//=========================================================================
+
+	'stringHash': function(aValue) {
+		var	result;
+
+		result = this.hash(new Clipperz.ByteArray(aValue)).toHexString().substring(2);
+		
+		return result;
+	},
+	
+	//=========================================================================
+	__syntaxFix__: "syntax fix"
+	
+});
+
+//#############################################################################