NAME

CSSM_CSP_CreateMacContext − Create a message authentication code cryptographic context (CDSA)

SYNOPSIS

# include <cdsa/cssm.h>

CSSM_RETURN CSSMAPI CSSM_CSP_CreateMacContext
(CSSM_CSP_HANDLE CSPHandle,
CSSM_ALGORITHMS AlgorithmID,
const CSSM_KEY ∗Key,
CSSM_CC_HANDLE ∗NewContextHandle)

LIBRARY

Common Security Services Manager library (libcssm.so)

PARAMETERS

CSPHandle (input)
The handle that describes the add-in cryptographic service provider module used to perform this function. If a NULL handle is specified, CSSM returns error.

AlgorithmID (input)
The algorithm identification number for the MAC algorithm.

Key (input)
The key used to generate a message authentication code. Caller passes a pointer to a CSSM_KEY structure containing the key.

NewContextHandle (output)
Cryptographic context handle.

DESCRIPTION

This function creates a message authentication code cryptographic context, given a handle of a CSP, algorithm identification number, and a key. The cryptographic context handle is returned. The cryptographic context handle can be used to call message authentication code functions. 

RETURN VALUE

A CSSM_RETURN value indicating success or specifying a particular error condition. The value CSSM_OK indicates success. All other values represent an error condition. 

SEE ALSO

Books

Intel CDSA Application Developer’s Guide (see CDSA_intro(3))

Reference Pages

Functions: CSSM_GenerateMac(3), CSSM_GenerateMacInit(3), CSSM_GenerateMacUpdate(3), CSSM_GenerateMacFinal(3), CSSM_VerifyMac(3), CSSM_VerifyMacInit(3), CSSM_VerifyMacUpdate(3), CSSM_VerifyMacFinal(3), CSSM_GetContext(3), CSSM_SetContext(3), CSSM_DeleteContext(3), CSSM_GetContextAttribute(3), CSSM_UpdateContextAttributes(3)