NAME

CSP_GenerateMacFinal

SYNOPSIS

CSSM_RETURN CSSMSPI CSP_GenerateMacFinal
    (CSSM_CSP_HANDLE CSPHandle,
    CSSM_CC_HANDLE CCHandle,
    CSSM_DATA_PTR Mac)

DESCRIPTION

This function finalizes the staged message authentication code function.

PARAMETERS

CSPHandle (input)

The handle that describes the add-in cryptographic service provider module used to perform up-calls to CSSM for the memory functions managed by CSSM.

CCHandle (input)

The handle that describes the context of this cryptographic operation used to link to the CSP-managed information.

Mac (output)

A pointer to the CSSM_DATA structure for the message authentication code.

RETURN VALUE

A CSSM return value. This function returns CSSM_OK if successful and returns an error code if an error has occurred.

ERRORS

CSSM_CSP_INVALID_CSP_HANDLE

Invalid CSP handle.

CSSM_CSP_INVALID_CONTEXT_HANDLE

Invalid context handle.

CSSM_CSP_INVALID_DATA_POINTER

Invalid output CSSM_DATA pointer.

CSSM_CSP_INVALID_DATA

Invalid output CSSM_DATA buffer.

CSSM_CSP_NOT_ENOUGH_BUFFER

The output buffer is not big enough.

CSSM_CSP_MEMORY_ERROR

Not enough memory to allocate.

CSSM_CSP_STAGED_OPERATION_UNSUPPORTED

Staged operation unsupported.

CSSM_CSP_STAGED_OPERATION_FAILED

Staged Cryptographic operation failed.

Comments

The output can be obtained either by filling the caller-supplied buffer or using the application's memory allocation functions to allocate space, application has to free the memory in this case. If the output buffer pointer is NULL, an error code CSSM_CSP_INVALID_DATA_POINTER is returned.

SEE ALSO

CSP_GenerateMac, CSP_GenerateMacInit, CSP_GenerateMacUpdate