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 . |