CSSM_CSP_CreateSignatureContext

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HP Open Source Security for OpenVMS Volume 1:...

API Functions

CSSM_CSP_CreateRandomGenContext

CSSM_CSP_CreateSymmetricContext

CSSM_CSP_CreateSignatureContext

Library
Description
See Also

Parameters
Return Value

NAME

CSSM_CSP_CreateSignatureContext - Create a signature cryptographic context (CDSA)

SYNOPSIS

# include <cssm.h>

CSSM_RETURN CSSMAPI CSSM_CSP_CreateSignatureContext
(CSSM_CSP_HANDLE CSPHandle,
CSSM_ALGORITHMS AlgorithmID,
const CSSM_ACCESS_CREDENTIALS *AccessCred,
const CSSM_KEY *Key,
CSSM_CC_HANDLE *NewContextHandle)

LIBRARY

Common Security Services Manager library (cdsa$incssm300_shr.exe)

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 a signature/verification algorithm.
`AccessCred` (input/optional)
		A pointer to the set of one or more credentials required to unlock the private key. The credentials structure can contain an immediate value for the credential, such as a passphrase, or the caller can specify a callback function the CSP can use to obtain one or more credentials. Credentials are required for signature operations, not for verify operations.
`Key` (input)		The key used to sign and verify. The caller passes a pointer to a CSSM_KEY structure containing the key and the key length.
`NewContextHandle` (output)
		Cryptographic context handle.

DESCRIPTION

This function creates a signature cryptographic context for sign and verify, given a handle of a CSP, an algorithm identification number, a key, and an AccessCredentials structure. The AccessCredentials structure will be used to unlock the private key when this context is used to perform a signing operation. The cryptographic context handle is returned. The cryptographic context handle can be used to call sign and verify cryptographic 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.