pure javascript RSA

// The passphrase used to repeatably generate this RSA key.
var PassPhrase = "The Moon is a Harsh Mistress."; 

// The length of the RSA key, in bits.
var Bits = 1024; 
var MattsRSAkey = cryptico.generateRSAKey(PassPhrase, Bits);
var MattsPublicKeyString = cryptico.publicKeyString(MattsRSAkey);

var PlainText = "Matt, I need you to help me with my Starcraft strategy.";
var EncryptionResult = cryptico.encrypt(PlainText, MattsPublicKeyString);

var DecryptionResult = cryptico.decrypt(EncryptionResult.cipher, MattsRSAkey);

    my.generateRSAKey = function(passphrase, bitlength)
    {
        Math.seedrandom(sha256.hex(passphrase));
        var rsa = new RSAKey();
        rsa.generate(bitlength, "03");
        return rsa;
    }
    my.publicKeyString = function(rsakey) 
    {
        pubkey = my.b16to64(rsakey.n.toString(16));
        return pubkey; 
    }