Hi,
Using CryptoPP API (ver 5.0.4 FIPS validated DLL) if I try to decrypt
(block) data which (last block) is pkcs5 padded I am getting the pkcs5
pad as well in the output. how do I get the CryptoPP API (ver 5.0.4)
to handle/discard the padding?
I saw some mention of the constant "CRYPTOPP_PAD_PKCS5" while
searching google but where do I specify this padding mode in the
CryptoPP API usage?
Of course, FYI, pkcs5 padding is something like the remaining unused
bytes in a block are filled with a value which is the count itself (of
the unused bytes).
Thanks,
Vishal
PS: I am doing something like
byte * pIV = {1, 2, 3, 4, 5, 6, 7, 8};
DES_EDE3_Decryption * p3DES = new DES_EDE3_Decryption...;
BlockOrientedCipherModeBase * pCipher = new
CBC_Mode_ExternalCipher::Decryption(*p3DES, pIV);
and in a loop...
pCipher->ProcessData(pData, pData, uiBlockSize);
even if i use:
pCipher->ProcessLastBlock(pData, pData, uiBlockSize);
I still get the padding...
--
"Thou shalt not follow the null pointer for at its end madness and chaos lie."
