CertAlgIdToOID

This function converts a CryptoAPI algorithm identifier (ALG_ID) to an ASN.1 object identifier string.

LPCSTR WINAPI CertAlgIdToOID(
DWORD dwAlgId
);

Parameters

• dwAlgId
  [in] Value to be converted to an object identifier (OID).

Return Values

Returns the NULL-terminated OID string or NULL if there is no OID string that corresponds to the algorithm identifier.

Examples

// EXAMPLE CODE USING CertAlgIdToOID() to 
// convert the CALG_SHA algorithm identifier to an 
// Object Identifier string.
+
//--------------------------------------------------------------------
//  Declare variables. 
LPCSTR pszObjID;
if(pszObjID= CertAlgIdToOID(CALG_SHA))
{
   printf("The OID for CALG_SHA  is %s \n",pszObjID);
}
else
{
   printf("No object identifier string correlates to the ALG_ID. \n");
} 

Requirements

Note   This API is part of the complete Windows CE OS package as provided by Microsoft. The functionality of a particular platform is determined by the original equipment manufacturer (OEM) and some devices may not support this API.

See Also

ALG_ID

 Last updated on Tuesday, July 13, 2004

© 1992-2000 Microsoft Corporation. All rights reserved.