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/*
Copyright 2008-2011 Clipperz Srl
This file is part of Clipperz Community Edition.
Clipperz Community Edition is an online password manager.
For further information about its features and functionalities please
refer to http://www.clipperz.com.
* Clipperz Community Edition 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.
* Clipperz Community Edition 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 Clipperz Community Edition. If not, see
<http://www.gnu.org/licenses/>.
*/
try { if (typeof(Clipperz.Crypto.BigInt) == 'undefined') { throw ""; }} catch (e) {
throw "Clipperz.Crypto.RSA depends on Clipperz.Crypto.BigInt!";
}
if (typeof(Clipperz.Crypto.RSA) == 'undefined') { Clipperz.Crypto.RSA = {}; }
Clipperz.Crypto.RSA.VERSION = "0.1";
Clipperz.Crypto.RSA.NAME = "Clipperz.RSA";
//#############################################################################
MochiKit.Base.update(Clipperz.Crypto.RSA, {
//-------------------------------------------------------------------------
'publicKeyWithValues': function (e, d, n) {
var result;
result = {};
if (e.isBigInt) {
result.e = e;
} else {
result.e = new Clipperz.Crypto.BigInt(e, 16);
}
if (d.isBigInt) {
result.d = d;
} else {
result.d = new Clipperz.Crypto.BigInt(d, 16);
}
if (n.isBigInt) {
result.n = n;
} else {
result.n = new Clipperz.Crypto.BigInt(n, 16);
}
return result;
},
'privateKeyWithValues': function(e, d, n) {
return Clipperz.Crypto.RSA.publicKeyWithValues(e, d, n);
},
//-----------------------------------------------------------------------------
'encryptUsingPublicKey': function (aKey, aMessage) {
var messageValue;
var result;
messageValue = new Clipperz.Crypto.BigInt(aMessage, 16);
result = messageValue.powerModule(aKey.e, aKey.n);
return result.asString(16);
},
//.............................................................................
'decryptUsingPublicKey': function (aKey, aMessage) {
return Clipperz.Crypto.RSA.encryptUsingPublicKey(aKey, aMessage);
},
//-----------------------------------------------------------------------------
'encryptUsingPrivateKey': function (aKey, aMessage) {
var messageValue;
var result;
messageValue = new Clipperz.Crypto.BigInt(aMessage, 16);
result = messageValue.powerModule(aKey.d, aKey.n);
return result.asString(16);
},
//.............................................................................
'decryptUsingPrivateKey': function (aKey, aMessage) {
return Clipperz.Crypto.RSA.encryptUsingPrivateKey(aKey, aMessage);
},
//-----------------------------------------------------------------------------
'generatePublicKey': function(aNumberOfBits) {
var result;
var e;
var d;
var n;
e = new Clipperz.Crypto.BigInt("10001", 16);
{
var p, q;
var phi;
do {
p = Clipperz.Crypto.BigInt.randomPrime(aNumberOfBits);
} while (p.module(e).equals(1));
do {
q = Clipperz.Crypto.BigInt.randomPrime(aNumberOfBits);
} while ((q.equals(p)) || (q.module(e).equals(1)));
n = p.multiply(q);
phi = (p.subtract(1).multiply(q.subtract(1)));
d = e.powerModule(-1, phi);
}
result = Clipperz.Crypto.RSA.publicKeyWithValues(e, d, n);
return result;
},
//-------------------------------------------------------------------------
__syntaxFix__: "syntax fix"
//-------------------------------------------------------------------------
});
//#############################################################################
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