Note
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Use the CryptFindOIDInfo function instead of this function because ALG_ID identifiers are no longer supported in CNG. Use the CRYPT_OID_INFO_CNG_ALGID_KEY value in the dwKeyType parameter of the CryptFindOIDInfo function instead.
Windows Server 2003 and Windows XP: The CertAlgIdToOID function converts a CryptoAPI algorithm identifier (ALG_ID) to an Abstract Syntax Notation One (ASN.1) object identifier (OID) string.
Syntax
LPCSTR CertAlgIdToOID(
[in] DWORD dwAlgId
);
Parameters
[in] dwAlgId
Value to be converted to an OID.
Return value
If the function succeeds, the function returns the null-terminated OID string.
If no OID string corresponds to the algorithm identifier, the function returns NULL.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows XP [desktop apps only] |
| Minimum supported server | Windows Server 2003 [desktop apps only] |
| Target Platform | Windows |
| Header | wincrypt.h |
| Library | Crypt32.lib |
| DLL | Crypt32.dll |