Utility methods
예제 #1
0
        /// <summary>
        /// M is client's proof of K.
        /// </summary>
        /// <returns></returns>
        public static Byte[] CalcM(NetBigInteger N, NetBigInteger g, String userName, Byte[] salt, NetBigInteger A, NetBigInteger B, Byte[] K)
        {
            // User -> Host:  M = H(H(N) xor H(g), H(I), s, A, B, K)
            Byte[]    gBytes         = g.ToByteArray();
            Byte[]    NBytes         = N.ToByteArray();
            Byte[]    hg             = hashAlgo.ComputeHash(gBytes);
            Byte[]    hN             = hashAlgo.ComputeHash(NBytes);
            Byte[]    gNXorBytes     = XorArrays(hN, hg);
            Byte[]    userNameBytes  = Encoding.UTF8.GetBytes(userName);
            Byte[]    hUserNameBytes = hashAlgo.ComputeHash(userNameBytes);
            Byte[]    ABytes         = A.ToByteArray();
            Byte[]    BBytes         = B.ToByteArray();
            ArrayList al             = new ArrayList();

            al.Add(gNXorBytes);
            al.Add(hUserNameBytes);
            al.Add(salt);
            al.Add(ABytes);
            al.Add(BBytes);
            al.Add(K);
            Byte[] all = NetUtility.JoinArrays(al);
            return(hashAlgo.ComputeHash(all));
        }