CSPspEmu.Core.Crypto.Crypto.generate_subkey C# (CSharp) Метод

        public static void generate_subkey(AES_ctx* ctx, byte* K1, byte* K2)
        {
            var _L = new byte[16];
            var _Z = new byte[16];
            var _tmp = new byte[16];
            int i;

            fixed (byte* tmp = _tmp)
            fixed (byte* L = _L)
            fixed (byte* Z = _Z)
            fixed (byte* const_Rb = _const_Rb)
            {
                for ( i=0; i<16; i++ ) Z[i] = 0;

                AES_encrypt(ctx, Z, L);

                if ( (L[0] & 0x80) == 0 ) /* If MSB(L) = 0, then K1 = L << 1 */
                {
                    leftshift_onebit(L,K1);
                } else {    /* Else K1 = ( L << 1 ) (+) Rb */
                    leftshift_onebit(L,tmp);
                    xor_128(tmp,const_Rb,K1);
                }

                if ( (K1[0] & 0x80) == 0 )
                {
                    leftshift_onebit(K1,K2);
                } else {
                    leftshift_onebit(K1,tmp);
                    xor_128(tmp,const_Rb,K2);
                }
            }
        }