ARCFive128DecryptCBC

Decrypts a variable length data stream using the RC5 cipher with 128-bit block size in the CBC mode.

Syntax

IppStatus ippsARCFive128DecryptCBC (const Ipp8u* pSrc, Ipp8u* pDst, int length, const IppsARCFive128Spec* pCtx, const Ipp8u* pIV, IppsCPPadding padding);

Parameters

pSrc	Pointer to the input ciphertext data stream of variable length.
pDst	Pointer to the resulting plaintext data stream.
length	Length of the ciphertext data stream in bytes.
pCtx	Pointer to the IppsARCFive128Spec context.
pIV	Pointer to the initialization vector for the CBC mode operation.
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 in the CBC mode as specified in the [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 input data stream length is less than or equal to 0.
ippStsUnderRunErr	Indicates an error condition if length is not divisible by data block size.
ippStsContextMatchErr	Indicates an error condition if the context parameter does not match the operation.