/// <summary>
/// 获取返回时的签名验证结果
/// </summary>
/// <param name="inputPara">通知返回参数数组</param>
/// <param name="sign">对比的签名结果</param>
/// <returns>签名验证结果</returns>
// ReSharper disable once InconsistentNaming
private static bool GetSignVeryfyRSA(SortedDictionary <string, string> inputPara, string sign)
{
//过滤空值、sign与sign_type参数
Dictionary <string, string> sPara = FilterPara(inputPara);
//获取待签名字符串
string preSignStr = CreateLinkString(sPara);
//获得签名验证结果
return(AlipayRSA.Verify(preSignStr, sign, RSAPublicKey, InputCharset));
}
/// <summary>
/// 验证消息是否是支付宝发出的合法消息
/// </summary>
/// <param name="inputPara">通知返回参数数组</param>
/// <param name="notifyId">通知验证ID</param>
/// <param name="sign">支付宝生成的签名结果</param>
/// <param name="signType"></param>
/// <returns>验证结果</returns>
public static bool Verify(SortedDictionary <string, string> inputPara, string notifyId, string sign, string signType, string paytype)
{
//获取返回时的签名验证结果
//bool isSign = signType.ToUpper() == "RSA" ? GetSignVeryfyRSA(inputPara, sign) : GetSignVeryfyMD5(inputPara, sign);
string PublicKey = string.Empty;
if (paytype == "APP")
{
PublicKey = RSAPublicKey;
}
else if (paytype == "H5")
{
PublicKey = alipay_public_key;
}
bool isSign = AlipayRSA.RSACheckV1(inputPara, PublicKey, InputCharset, signType);
//获取是否是支付宝服务器发来的请求的验证结果
string responseTxt = "false";
if (!string.IsNullOrEmpty(notifyId))
{
responseTxt = GetResponseTxt(notifyId);
}
return(responseTxt == "true" && isSign);
}