CryptXmlVerifySignature function (cryptxml.h)

The CryptXmlVerifySignature function performs a cryptographic signature validation of a SignedInfo element.

Syntax

HRESULT CryptXmlVerifySignature(
  [in]           HCRYPTXML         hSignature,
  [in, optional] BCRYPT_KEY_HANDLE hKey,
                 DWORD             dwFlags
);

Parameters

[in] hSignature

The handle of a Signature element.

[in, optional] hKey

The handle of the public key to use to verify the signature value on the SignedInfo element. This parameter must be NULL for HMAC-based signature algorithms.

dwFlags

A DWORD value that controls which implementations are used. This parameter can be one of the following values.

Return value

If the function succeeds, the function returns zero.

If the function fails, it returns an HRESULT value that indicates the error.

Requirements