/// <summary>
/// 获取签名字符串
/// </summary>
/// <param name="dic">待签名参数</param>
/// <param name="key">签名密钥</param>
/// <param name="signType">签名加密方法</param>
/// <returns></returns>
public static string GetSign(SortedDictionary <string, object> dic, string key, SignType signType)
{
var strSign = string.Empty;
var strRequestData = string.Empty;
StringBuilder sbRequest = new StringBuilder();
foreach (var item in dic)
{
if (item.Key.ToLower() != "sign" && item.Key.ToLower() != "sign_type" && item.Value != "" && item.Value != null)
{
sbRequest.AppendFormat("{0}={1}&", item.Key, item.Value);
}
}
if (sbRequest.Length > 0)
{
if (!string.IsNullOrEmpty(key))
{
strRequestData = string.Format("{0}&key={1}", sbRequest.ToString(), key.Trim());
}
else
{
strRequestData = sbRequest.ToString().TrimEnd('&');
}
}
switch (signType)
{
case SignType.MD5:
{
strSign = MD5CryptionUtil.Sign(strRequestData, "").ToUpper();
break;
};
case SignType.SHA1:
{
strSign = SecurityUtil.SHA1Encrypt(strRequestData);
break;
};
case SignType.SHA256:
{
strSign = SecurityUtil.SHA256Encrypt(strRequestData);
break;
}
default:
break;
}
return(strSign);
}
/// <summary>
/// 获取MD5签名
/// </summary>
/// <param name="key">签名密钥</param>
/// <param name="str">签名字符串</param>
/// <returns>MD5签名</returns>
public static string GetMD5Sign(string key, string str)
{
str += "&key=" + key;
return(MD5CryptionUtil.Sign(str).ToUpper());
}