CSP_DecryptDataFinal
CSSM_RETURN CSSMSPI CSP_DecryptDataFinal
(CSSM_CSP_HANDLE CSPHandle,
CSSM_CC_HANDLE CCHandle,
CSSM_DATA_PTR RemData)
This function finalizes the staged decrypt function.
- 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.
A CSSM return value. This function returns CSSM_OK if successful and returns an error code if an error has occurred.
- 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.
CSP_DecryptData, CSP_DecryptDataInit, CSP_DecryptDataUpdate
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