使用带SHA256证书的ECDSA验证C#签名

using System;
using System.Security.Cryptography;
using System.Security.Cryptography.X509Certificates;

public class ECDSASignatureVerifier
{
    public bool VerifySignature(byte[] message, byte[] signature, X509Certificate2 certificate)
    {
        using (ECDsa ecdsa = certificate.GetECDsaPublicKey())
        {
            if (ecdsa == null)
            {
                throw new InvalidOperationException("Invalid ECDSA public key");
            }

            ecdsa.HashAlgorithm = "SHA256";
            return ecdsa.VerifyData(message, signature, HashAlgorithmName.SHA256);
        }
    }
}

public class Program
{
    public static void Main(string[] args)
    {
        byte[] message = // 待验证的消息数据
        byte[] signature = // 签名数据

        X509Certificate2 certificate = new X509Certificate2("path/to/certificate.pfx", "password");

        ECDSASignatureVerifier verifier = new ECDSASignatureVerifier();
        bool isValid = verifier.VerifySignature(message, signature, certificate);

        Console.WriteLine("Signature is valid: " + isValid);
    }
}