CryptFindCertificateKeyProvInfo (Compact 2013)

3/28/2014

This function enumerates the cryptographic providers and their containers to find the private key corresponding to the certificate's public key.

Syntax

BOOL WINAPI CryptFindCertificateKeyProvInfo(
  PCCERT_CONTEXT pCert,
  DWORD dwFlags,
  void* pvReserved
);

Parameters

• pCert
  [in] Pointer to the CERT_CONTEXT structure of the certificate to use when exporting public key information.

• dwFlags
  [in] Bitmask of flags. The following table shows flag values that are defined.

  Value	Description
  CRYPT_FIND_USER_KEYSET_FLAG	Restricts the search to the user container.
  CRYPT_FIND_MACHINE_KEYSET_FLAG	Restricts the search to the machine container.

  If no flag value is specified, both the user and the machine containers are searched.

• pvReserved
  [in] Reserved; set to NULL.

  This function enumerates the cryptographic providers and their containers to find the private key corresponding to the certificate's public key. For a match, the function updates the certificate's CERT_KEY_PROV_INFO_PROP_ID property. If the CERT_KEY_PROV_INFO_PROP_ID is already set, it is checked to see if it matches the provider's public key. For a match, the function skips the previously mentioned enumeration.

Return Value

Returns TRUE if the function finds a private key corresponding to the certificate's public key within a searched container.

Returns FALSE if the function fails to find a container or a private key within a container.

The following table shows an error that the GetLastError function returns.

The GetLastError function can return NTE_NO_KEY, which indicates there was no container found.

Requirements

See Also

Reference

Certificates Functions
CERT_CONTEXT