NAME

CSSM_GenerateMacUpdate

SYNOPSIS

CSSM_RETURN CSSMAPI CSSM_GenerateMacUpdate
    (CSSM_CC_HANDLE CCHandle,
    const CSSM_DATA_PTR DataBufs,
    uint32 DataBufCount)

DESCRIPTION

This function updates the staged message authentication code function.

PARAMETERS

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 a vector of CSSM_DATA structures that contain the data to be operated on.

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_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

CSSM_GenerateMac, CSSM_GenerateMacInit,
CSSM_GenerateMacFinal