Developer Guide and Reference for Intel® Integrated Performance Primitives Cryptography
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MD5Pack, MD5Unpack
Packs/unpacks the IppsMD5State context into/from a user-defined buffer (deprecated).
Syntax
IppStatus ippsMD5Pack (const IppsMD5State* pCtx, Ipp8u* pBuffer);
IppStatus ippsMD5Unpack (const Ipp8u* pBuffer, IppsMD5State* pCtx);
Include Files
ippcp.h
Parameters
pCtx  |  
        Pointer to the IppsMD5State context.  |  
       
pBuffer  |  
        Pointer to the user-defined buffer.  |  
       
Description
The MD5Pack function transforms the *pCtx context to a position-independent form and stores it in the *pBuffer buffer. The MD5Unpack function performs the inverse operation, that is, transforms the contents of the *pBuffer buffer into a normal IppsMD5State context. The MD5Pack and MD5Unpack functions enable replacing the position-dependent IppsMD5State context in the memory.
Call the MD5GetSize function prior to MD5Pack/MD5Unpack to determine the size of the buffer.
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.  |