NAME

CSP_DecryptDataFinal

SYNOPSIS

CSSM_RETURN CSSMSPI CSP_DecryptDataFinal
    (CSSM_CSP_HANDLE CSPHandle,
    CSSM_CC_HANDLE CCHandle,
    CSSM_DATA_PTR RemData)

DESCRIPTION

This function finalizes the staged decrypt 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.

RemData(output)

A pointer to the CSSM_DATA structure for the last decrypted block.

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. In-place decryption can be done by supplying the same input and output buffers.

SEE ALSO

CSP_DecryptData, CSP_DecryptDataInit, CSP_DecryptDataUpdate