AES_GCMProcessAAD¶
Processes additional authenticated data of a given length according to the GCM specification.
Syntax¶
IppStatus ippsAES_GCMProcessAAD(const Ipp8u* pAAD, int ivAAD, IppsAES_GCMState* pState);
Include Files¶
ippcp.h
Parameters¶
pAAD |
Pointer to the additional authenticated data. |
ivAAD |
Length of additional authenticated data *pAAD (in bytes). |
pState |
Pointer to the IppsAES_GCMState context. |
Description¶
The function processes ivAAD bytes of additional authenticated data *pAAD as specified in [NIST SP 800-38D].
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 if ivAAD is less than zero. |
ippStsBadArgErr |
Indicates an error condition if ivAAD is zero and pState is not GcmInit or GcmIVProcessing. This means that the function call sequence is illegal. |