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CSSM_CSP_CreateAsymmetricContext(3)	   CSSM_CSP_CreateAsymmetricContext(3)

NAME
       CSSM_CSP_CreateAsymmetricContext	 -  Create  an	asymmetric  encryption
       cryptographic context (CDSA)

SYNOPSIS
       # include <cdsa/cssm.h>

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

LIBRARY
       Common Security Services Manager library (libcssm.so)

PARAMETERS
       The  handle  that  describes  the add-in cryptographic service provider
       module used to perform this function. If a NULL	handle	is  specified,
       CSSM  returns  an  error.   The algorithm identification number for the
       algorithm used for asymmetric encryption.  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 can be required  for
       encryption  and	decryption  operations.	  The  key used for asymmetric
       encryption. The caller passes a pointer to a  CSSM_KEY  structure  con‐
       taining the key. When the context is used for a sign operation, Access‐
       Credentials is required to access the private  key  used	 for  signing.
       When the context is used for a verify operation, the public key is used
       to verify the signature. When the context is used for a wrapkey	opera‐
       tion,  the public key can be used as the wrapping key. When the context
       is used for an  unwrap  operation,  AccessCredentials  is  required  to
       access  the private key used to perform the unwrapping.	The method for
       padding. Typically specified for ciphers that pad.  Cryptographic  con‐
       text handle.

DESCRIPTION
       This  function  creates an asymmetric encryption cryptographic context,
       given a handle of a CSP, an algorithm identification number, a key, and
       padding.	  The  cryptographic  context  handle is returned. The crypto‐
       graphic context handle can be used to call asymmetric encryption	 func‐
       tions and cryptographic wrap or unwrap functions.

RETURN VALUE
       A CSSM_RETURN value indicating success or specifying a particular error
       condition. The value CSSM_OK indicates success. All other values repre‐
       sent an error condition.

SEE ALSO
       Books

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

       Reference Pages

       Functions:  CSSM_DecryptData(3), CSSM_DecryptDataInit(3), CSSM_Decrypt‐
       DataUpdate(3),	  CSSM_DecryptDataFinal(3),	CSSM_DeleteContext(3),
       CSSM_EncryptData(3),    CSSM_EncryptDataInit(3),	   CSSM_EncryptDataUp‐
       date(3), CSSM_EncryptDataFinal(3), CSSM_GetContext(3),  CSSM_GetContex‐
       tAttribute(3),  CSSM_QuerySize(3),  CSSM_SetContext(3), CSSM_UpdateCon‐
       textAttributes(3)

					   CSSM_CSP_CreateAsymmetricContext(3)

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