Rijndael128GCMStart

Starts the process of authenticated encryption/decryption for new message.

Syntax

IppStatus ippsRijndael128GCMStart(const Ipp8u* pIV, Ipp32u ivLen, const Ipp8u* pAAD, Ipp32u aadLen, IppsRijndael128GCMState* pState);

pIV	Pointer to the initialization vector.
ivLen	Length of the initialization vector *pIV (in bytes).
pAAD	Pointer to the additional authenticated data.
aadLen	Length of additional authenticated data *pAAD (in bytes).
pState	Pointer to the IppsRijndael128GCMState context.

This function is declared in the ippcp.h file. The function resets internal counters and buffers of the *pState context.

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 if the length of the initialization vector is zero.