分享中国银行快捷.NET P1签名和验签方法代码中ReturnValue为自定义类型请无视
#region 验证签名 /// <summary> /// 验证签名 /// </summary> /// <param name="plainText">返回数据原文</param> /// <param name="pubKeyPath">公钥证书地址</param> /// <param name="signatureData">签名值</param> /// <returns></returns> public static bool VerifyBankGatewayShortPaySign(string plainText, string pubKeyPath, string signatureData) { bool bVerify; try { //将base64签名数据转码为字节 byte[] signedBase64 = Convert.FromBase64String(signatureData); byte[] orgin = Encoding.UTF8.GetBytes(plainText); //加载公钥 X509Certificate2 x509_Cer1 = new X509Certificate2(pubKeyPath);
using (RSACryptoServiceProvider oRSA = new RSACryptoServiceProvider()) { oRSA.FromXmlString(x509_Cer1.PublicKey.Key.ToXmlString(false));
bVerify = oRSA.VerifyData(orgin, "SHA1", signedBase64); return bVerify; } } catch (Exception ex) { return false; } } #endregion
/// <summary> /// 证书 /// </summary> /// <param name="certifyFilePath">证书路径</param> /// <param name="certifyPassWord">证书密码</param> /// <returns></returns> private static X509Certificate2 RetrieveX509Certificate(string certifyFilePath, string certifyPassWord) { if (string.IsNullOrEmpty(certifyPassWord))
return new X509Certificate2(certifyFilePath); else return new X509Certificate2(certifyFilePath, certifyPassWord); }
#region 创建签名 /// <summary> /// 根据原文创建P1签名 /// </summary> /// <param name="plainText">请求数据原文</param> /// <param name="prikeyPath">私钥证书地址</param> /// <param name="pfxPwd">私钥密码</param> /// <returns></returns> public static string CreateBankGatewayShortPaySign(string plainText, string prikeyPath, string pfxPwd) { string sign; try { byte[] plainByte = System.Text.Encoding.UTF8.GetBytes(plainText); //加载私钥 X509Certificate2 myCert = RetrieveX509Certificate(prikeyPath, pfxPwd); using (RSACryptoServiceProvider RSA = (RSACryptoServiceProvider)myCert.PrivateKey) { RSAPKCS1SignatureFormatter rsaDeformatter = new RSAPKCS1SignatureFormatter(RSA); rsaDeformatter.SetHashAlgorithm("SHA1"); SHA1Managed sha = new SHA1Managed(); byte[] byteHash = sha.ComputeHash(plainByte); //执行签名 byte[] encryptedSignatureData = rsaDeformatter.CreateSignature(byteHash); sign = Convert.ToBase64String(encryptedSignatureData); } return sign; } catch (Exception ex) { return ""; }
} #endregion
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转载于:https://www.cnblogs.com/xinwuhen/p/5420545.html
相关资源：C# SHA256 PKCS#7 生成验名、验签源码 中行支付.rar