AES_CCMStart

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

Syntax

IppStatus ippsAES_CCMStart(const Ipp8u* pIV, int ivLen, const Ipp8u* pAD, int adLen, IppsAES_CCMState* pCtx);

Include Files

ippcp.h

Parameters

pIV	Pointer to the initialization vector.
ivLen	Length of the initialization vector *pIV (in bytes).
pAD	Pointer to the additional authenticated data.
adLen	Length of additional authenticated data *pAAD (in bytes).
pCtx	Pointer to the IppsAES_CCMState context.

Description

The function resets internal counters and buffers of the *pCtx context.

Return Values

ippStsNoErr	Indicates no error. Any other value indicates an error or warning.
pState	Indicates an error condition if any of the specified pointers is NULL.
pState	Indicates an error condition if the context parameter does not match the operation.
pState	Indicates an error condition if ivLen < 7 or ivLen > 13 .