NAME

CSP_GenerateMacUpdate

SYNOPSIS

CSSM_RETURN CSSMSPI CSP_GenerateMacUpdate
    (CSSM_CSP_HANDLE CSPHandle,
    CSSM_CC_HANDLE CCHandle,
    const CSSM_DATA_PTR DataBufs,
    uint32 DataBufCount)

DESCRIPTION

This function updates 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.

DataBufs (input)

A pointer to one or more CSSM_DATA structures containing the supplied data.

DataBufCount (input)

The number of DataBufs.

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 input CSSM_DATA pointer.

CSSM_CSP_INVALID_DATA_COUNT

Invalid input data count; data count cannot be 0.

CSSM_CSP_INVALID_DATA

Invalid input CSSM_DATA buffer.

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.

CSSM_CSP_VECTOROFBUFS_UNSUPPORTED

Supports only a single buffer of input.

SEE ALSO

CSP_GenerateMac, CSP_GenerateMacInit, CSP_GenerateMacFinal