CSPspEmu.Core.Crypto.Crypto.memcmp C# (CSharp) Method

        public static int memcmp(byte* str1, byte* str2, int count)
        {
            for (int n = 0; n < count; n++)
            {
                byte c1 = str1[n];
                byte c2 = str2[n];
                if (c1 > c2) return -1;
                if (c1 < c2) return +1;
            }
            return 0;
        }

        public int kirk_CMD10(byte *inbuff, int insize)
        {
            if (!is_kirk_initialized)
            {
                return(KIRK_NOT_INITIALIZED);
            }

            AES128CMACHeader *header = (AES128CMACHeader *)inbuff;

            if (!(header->Mode == KIRK_MODE_CMD1 || header->Mode == KIRK_MODE_CMD2 || header->Mode == KIRK_MODE_CMD3))
            {
                return(KIRK_INVALID_MODE);
            }
            if (header->DataSize == 0)
            {
                return(KIRK_DATA_SIZE_ZERO);
            }

            if (header->Mode == KIRK_MODE_CMD1)
            {
                header_keys keys;                                                 //0-15 AES key, 16-31 CMAC key

                Crypto.AES_cbc_decrypt(aes_kirk1_ptr, inbuff, (byte *)&keys, 32); //decrypt AES & CMAC key to temp buffer

                Crypto.AES_ctx cmac_key;
                Crypto.AES_set_key(&cmac_key, keys.CMAC, 128);

                var _cmac_header_hash = new byte[16];
                var _cmac_data_hash   = new byte[16];
                fixed(byte *cmac_header_hash = _cmac_header_hash)
                fixed(byte *cmac_data_hash = _cmac_data_hash)
                {
                    Crypto.AES_CMAC(&cmac_key, inbuff + 0x60, 0x30, cmac_header_hash);

                    //Make sure data is 16 aligned
                    int chk_size = header->DataSize;

                    if ((chk_size % 16) != 0)
                    {
                        chk_size += 16 - (chk_size % 16);
                    }
                    Crypto.AES_CMAC(&cmac_key, inbuff + 0x60, 0x30 + chk_size + header->DataOffset, cmac_data_hash);

                    if (Crypto.memcmp(cmac_header_hash, header->CMAC_header_hash, 16) != 0)
                    {
                        Console.WriteLine("header hash invalid");
                        return(KIRK_HEADER_HASH_INVALID);
                    }
                    if (Crypto.memcmp(cmac_data_hash, header->CMAC_data_hash, 16) != 0)
                    {
                        Console.WriteLine("data hash invalid");
                        return(KIRK_DATA_HASH_INVALID);
                    }

                    return(KIRK_OPERATION_SUCCESS);
                }
            }
            return(KIRK_SIG_CHECK_INVALID);            //Checks for cmd 2 & 3 not included right now
        }