/// <summary>
///
/// </summary>
/// <param name="outbuff"></param>
/// <param name="inbuff"></param>
/// <param name="size"></param>
/// <param name="header"></param>
/// <returns></returns>
public void kirk_CMD1_ex(byte *outbuff, byte *inbuff, int size, Aes128CmacHeader *header)
{
var bufferBytes = new byte[size];
fixed(byte *buffer = bufferBytes)
{
Crypto.Memcpy(buffer, header, sizeof(Aes128CmacHeader));
Crypto.Memcpy(buffer + sizeof(Aes128CmacHeader), inbuff, header->DataSize);
kirk_CMD1(outbuff, buffer, size);
}
}
/// <summary>
///
/// </summary>
/// <param name="outbuff"></param>
/// <param name="inbuff"></param>
/// <param name="size"></param>
/// <param name="generateTrash"></param>
/// <returns></returns>
public void kirk_CMD0(byte *outbuff, byte *inbuff, int size, bool generateTrash)
{
var cmacHeaderHashBytes = new byte[16];
var cmacDataHashBytes = new byte[16];
fixed(byte *cmacHeaderHash = cmacHeaderHashBytes)
fixed(byte *cmacDataHash = cmacDataHashBytes)
//#if !USE_DOTNET_CRYPTO
fixed(Crypto.AesCtx * aesKirk1Ptr = &_aesKirk1)
//#endif
{
check_initialized();
Aes128CmacHeader *header = (Aes128CmacHeader *)outbuff;
Crypto.Memcpy(outbuff, inbuff, size);
if (header->Mode != KirkMode.Cmd1)
{
throw(new KirkException(ResultEnum.PspKirkInvalidMode,
$"Expected mode Cmd1 but found {header->Mode}"));
}
HeaderKeys *keys = (HeaderKeys *)outbuff; //0-15 AES key, 16-31 CMAC key
//FILL PREDATA WITH RANDOM DATA
if (generateTrash)
{
kirk_CMD14(outbuff + sizeof(Aes128CmacHeader), header->DataOffset);
}
//Make sure data is 16 aligned
var chkSize = header->DataSize;
if ((chkSize % 16) != 0)
{
chkSize += 16 - (chkSize % 16);
}
//ENCRYPT DATA
Crypto.AesCtx k1;
Crypto.AES_set_key(&k1, keys->Aes, 128);
Crypto.AES_cbc_encrypt(&k1, inbuff + sizeof(Aes128CmacHeader) + header->DataOffset,
outbuff + sizeof(Aes128CmacHeader) + header->DataOffset, chkSize);
//CMAC HASHES
Crypto.AesCtx cmacKey;
Crypto.AES_set_key(&cmacKey, keys->Cmac, 128);
Crypto.AES_CMAC(&cmacKey, outbuff + 0x60, 0x30, cmacHeaderHash);
Crypto.AES_CMAC(&cmacKey, outbuff + 0x60, 0x30 + chkSize + header->DataOffset, cmacDataHash);
Crypto.Memcpy(header->CmacHeaderHash, cmacHeaderHash, 16);
Crypto.Memcpy(header->CmacDataHash, cmacDataHash, 16);
//ENCRYPT KEYS
Crypto.AES_cbc_encrypt(aesKirk1Ptr, inbuff, outbuff, 16 * 2);
}
}
