/// <summary>
/// 获取应答报文中的加密公钥证书,并存储到本地,并备份原始证书。
/// 更新成功则返回1，无更新返回0，失败异常返回-1。
/// </summary>
/// <param name="dic">Dictionary数据</param>
/// <param name="encoding">编码</param>
/// <returns>成功返回1，无更新返回0，失败异常返回-1</returns>
public static int UpdateEncryptCert(Dictionary <string, string> dic, Encoding encoding)
{
if (!dic.ContainsKey("encryptPubKeyCert") || !dic.ContainsKey("certType"))
{
Log.Error("encryptPubKeyCert or certType is null.");
return(-1);
}
string strCert = dic["encryptPubKeyCert"];
string certType = dic["certType"];
X509Certificate x509Cert = CertUtil.GetPubKeyCert(strCert);
if (x509Cert == null)
{
Log.Error("从encryptPubKeyCert获取证书内容失败。");
return(-1);
}
if ("01".Equals(certType))
{
if (!CertUtil.GetEncryptCertId().Equals(x509Cert.SerialNumber.ToString()))
{
// ID不同时进行本地证书更新操作
string localCertPath = SdkConfig.EncryptCert;
string newLocalCertPath = SDKUtil.GenBackupName(localCertPath);
// 1.将本地证书进行备份存储
try
{
System.IO.File.Copy(localCertPath, newLocalCertPath, true);
}
catch (Exception e)
{
Log.Error("备份旧加密证书失败：", e);
return(-1);
}
// 2.备份成功,进行新证书的存储
FileStream fs = null;
try
{
fs = File.OpenWrite(localCertPath);
Byte[] info = encoding.GetBytes(strCert);
fs.Write(info, 0, info.Length);
}
catch (Exception e)
{
Log.Error("写入新加密证书失败：", e);
return(-1);
}
finally
{
if (fs != null)
{
fs.Close();
}
}
Log.Info("save new encryptPubKeyCert success");
CertUtil.ResetEncryptCertPublicKey();
return(1);
}
else
{
Log.Info("加密公钥无更新。");
return(0);
}
}
else if ("02".Equals(certType))
{
Log.Info("加密公钥无更新。");
return(0);
}
else
{
Log.Error("unknown cerType:" + certType);
return(-1);
}
}
/// <summary>
/// 验证签名
/// </summary>
/// <param name="rspData"></param>
/// <param name="encoder"></param>
/// <returns></returns>
public static bool Validate(Dictionary <string, string> rspData, Encoding encoding)
{
if (!rspData.ContainsKey("signMethod") || !rspData.ContainsKey("signature") || !rspData.ContainsKey("version"))
{
Log.Error("signMethod或signature或version为空，无法验证签名。");
return(false);
}
string signMethod = rspData["signMethod"];
string version = rspData["version"];
bool result = false;
if ("01".Equals(signMethod))
{
Log.Info("验签处理开始");
if ("5.0.0".Equals(version))
{
string signValue = rspData["signature"];
Log.Info("签名原文：[" + signValue + "]");
byte[] signByte = Convert.FromBase64String(signValue);
rspData.Remove("signature");
string stringData = SDKUtil.CreateLinkString(rspData, true, false, encoding);
Log.Info("排序串：[" + stringData + "]");
byte[] signDigest = SecurityUtil.Sha1(stringData, encoding);
string stringSignDigest = SDKUtil.ByteArray2HexString(signDigest);
Log.Debug("sha1结果：[" + stringSignDigest + "]");
AsymmetricKeyParameter key = CertUtil.GetValidateKeyFromPath(rspData["certId"]);
if (null == key)
{
Log.Error("未找到证书，无法验签，验签失败。");
return(false);
}
result = SecurityUtil.ValidateSha1WithRsa(key, signByte, encoding.GetBytes(stringSignDigest));
}
else
{
string signValue = rspData["signature"];
Log.Info("签名原文：[" + signValue + "]");
byte[] signByte = Convert.FromBase64String(signValue);
rspData.Remove("signature");
string stringData = SDKUtil.CreateLinkString(rspData, true, false, encoding);
Log.Info("排序串：[" + stringData + "]");
byte[] signDigest = SecurityUtil.Sha256(stringData, encoding);
string stringSignDigest = SDKUtil.ByteArray2HexString(signDigest);
Log.Debug("sha256结果：[" + stringSignDigest + "]");
string signPubKeyCert = rspData["signPubKeyCert"];
X509Certificate x509Cert = CertUtil.VerifyAndGetPubKey(signPubKeyCert);
if (x509Cert == null)
{
Log.Error("获取验签证书失败，无法验签，验签失败。");
return(false);
}
result = SecurityUtil.ValidateSha256WithRsa(x509Cert.GetPublicKey(), signByte, encoding.GetBytes(stringSignDigest));
}
}
else if ("11".Equals(signMethod) || "12".Equals(signMethod))
{
return(ValidateBySecureKey(rspData, SdkConfig.SecureKey, encoding));
}
else
{
Log.Error("Error signMethod [" + signMethod + "] in Validate. ");
return(false);
}
if (result)
{
Log.Info("验签成功");
}
else
{
Log.Info("验签失败");
}
return(result);
}