Cryptography for Intel® Integrated Performance Primitives Developer Reference

Developer Reference

Contents

AES_GCMDecrypt

Decrypts a data buffer in the GCM mode.

Syntax

IppStatus ippsAES_GCMDecrypt(const Ipp8u*
pSrc
, Ipp8u*
pDst
, int
len
, IppsAES_GCMState*
pState
);
Include Files
ippcp.h
Parameters
pSrc
Pointer to the input ciphertext data stream of a variable length.
pDst
Pointer to the resulting plaintext data stream.
len
Length of the plaintext and ciphertext data stream in bytes.
pState
Pointer to the
IppsAES_GCMState
 context.
Description
The function decrypts the input cipher data stream of a variable length according to GCM 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
len
 is less than zero.

Product and Performance Information

1

Performance varies by use, configuration and other factors. Learn more at www.Intel.com/PerformanceIndex.