Rijndael128CCMInit

Initializes user-supplied memory as the IppsRijndael128CCMState context for future use.

Syntax

IppStatus ippsRijndael128CCMInit(const Ipp8u* pKey, IppsRijndaelKeyLength keyLen, IppsRijndael128GCMState* pState);

Parameters

pKey Pointer to the secret key.

keyLength Length of the secret key.

pState Pointer to the IppsRijndael128CCMState context.

Description

This function is declared in the ippcp.h file. The function initializes the memory pointed by pState as the IppsRijndael128CCMState context. In addition, the function uses the initialization variable and additional authenticated data to provide all necessary key material for both encryption and decryption.

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.
ippStsContextMatchErr	Indicates an error condition if the context parameter does not match the operation.
ippStsLengthErr	Indicates an error condition an error condition if keyLen is not set to IppsRijndaelKey128, IppsRijndaelKey192 or IppsRijndaelKey256.