Rijndael256DecryptECB

Decrypts a byte data stream according to Rijndael in the ECB mode.

Syntax

IppStatus ippsRijndael256DecryptECB(const Ipp8u* pSrc, Ipp8u* pDst, int srclen, const IppsRijndael256Spec* pCtx, IppsCPPadding padding);

Parameters

pSrc	Pointer to the input ciphertext data stream of variable length.
pDst	Pointer to the resulting plaintext data stream of variable length.
srclen	Length of the ciphertext data stream in bytes.
pCtx	Pointer to the IppsRijndael256Spec context.
padding	IppsCPPaddingNONE padding scheme.

Description

This function is declared in the ippcp.h file. The function decrypts the input data stream of a variable length according to the ECB mode as specified in [NIST SP 800-38A].

Return Values

ippStsNoErr	Indicates no error. Any other value indicates an error or warning.
ippStsNullPtrErr	Indicates an error condition if any of the specified pointers is NULL.
ippStsLengthErr	Indicates an error condition if the output data stream length is less than or equal to zero.
ippStsContextMatchErr	Indicates an error condition if the context parameter does not match the operation.
ippStsUnderRunErr	Indicates an error condition if srclen is not divisible by cipher block size.