MD5GetTag¶
Computes the current MD5 digest value of the processed part of the message (deprecated).
Syntax¶
IppStatus ippsMD5GetTag(Ipp8u* pTag, Ipp32u tagLen, const IppsMD5State* pCtx);
Include Files¶
ippcp.h
Parameters¶
pTag |
Pointer to the authentication tag. |
tagLen |
Length of the tag (in bytes). |
pCtx |
Pointer to the IppsMD5State context. |
Description¶
Note
This algorithm is considered weak due to known attacks on it. The functionality remains in the library, but the implementation will no longer be optimized and no security patches will be applied.
The function computes the message digest based on the current context as specified in [FIPS PUB 180-2] and [RFC 1321]. A call to this function retains the possibility to update the digest.
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. |
ippStsLengthErr |
Indicates an error condition if tagLen < 1 or tagLen exceeds the maximal length of a particular digest. |
ippStsContextMatchErr |
Indicates an error condition if the context parameter does not match the operation. |