Rijndael128Init, SafeRijndael128Init

Initialize user-supplied memory as IppsRijndael128Spec context for future use.

Syntax

IppStatus ippsRijndael128Init(const Ipp8u *pKey, IppsRijndaelKeyLength keylen, IppsRijndael128Spec* pCtx);

IppStatus ippsSafeRijndael128Init(const Ipp8u *pKey, IppsRijndaelKeyLength keylen, IppsRijndael128Spec* pCtx);

Parameters

pKey	Pointer to the Rijndael128 key.
keylen	Key byte stream length in bytes defined by the IppsRijndaelKeyLength enumerator.
pCtx	Pointer to the IppsRijndael128Spec context being initialized.

Description

These functions are declared in the ippcp.h file. Each function initializes the memory pointed by pCtx as IppsRijndael128Spec. In addition, each function uses the key to provide all necessary key material for both encryption and decryption operations. Depending upon whether you wish to employ fast or safe implementation of the AES algorithm, call Rijndael128Init or SafeRijndael128Init, respectively.

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	Returns an error condition if keyLen is not set to IppsRijndaelKey128, IppsRijndaelKey192 or IppsRijndaelKey256.