/// <summary>
/// 对一键支付返回的业务数据进行验签
/// </summary>
/// <param name="data"></param>
/// <param name="encrypt_key"></param>
/// <param name="yibaoPublickKey"></param>
/// <param name="merchantPrivateKey"></param>
/// <returns></returns>
public static bool checkDecryptAndSign(string data, string encrypt_key,
string yibaoPublickKey, string merchantPrivateKey)
{
/** 1.使用YBprivatekey解开aesEncrypt。 */
string AESKey = "";
try
{
AESKey = RSAFromPkcs8.decryptData(encrypt_key, merchantPrivateKey, "UTF-8");
}
catch (Exception e)
{
/** AES密钥解密失败 */
return(false);
}
/** 2.用aeskey解开data。取得data明文 */
string realData = AES.Decrypt(data, AESKey);
SortedDictionary <string, object> sd = Newtonsoft.Json.JsonConvert.DeserializeObject <SortedDictionary <string, object> >(realData);
/** 3.取得data明文sign。 */
string sign = (string)sd["sign"];
/** 4.对map中的值进行验证 */
StringBuilder signData = new StringBuilder();
foreach (var item in sd)
{
/** 把sign参数隔过去 */
if (item.Key == "sign")
{
continue;
}
signData.Append(item.Value);
}
signData = signData.Replace("\r", "");
signData = signData.Replace("\n", "");
signData = signData.Replace(" ", "");
signData = signData.Replace(" ", "");
signData = signData.Replace("\": \"", "\":\"");
signData = signData.Replace("\": ", "\":");
/**5. result为true时表明验签通过 */
bool result = RSAFromPkcs8.checkSign(Convert.ToString(signData), sign,
yibaoPublickKey, "UTF-8");
return(result);
}
