加密算法之C#兼容PHP中sha1加密

/// <summary>
/// sha1 加密，与PHP加密结果一样
/// </summary>
/// <param name="data"></param>
/// <returns></returns>
public static string Sha1Sign(string data)
{
byte[] temp1 = Encoding.UTF8.GetBytes(data);
SHA1CryptoServiceProvider sha = new SHA1CryptoServiceProvider();
byte[] temp2 = sha.ComputeHash(temp1);
sha.Clear();            // 注意， 不能用这个
// string output = Convert.ToBase64String(temp2);// 不能直接转换成 base64string
var output = BitConverter.ToString(temp2);
output = output.Replace("-", "");
output = output.ToLower();
return output;
}