生成哈希字符串

 public static  string SHAHash(string valueToHash, string salt)
{
      System.Security.Cryptography.SHA512Managed hasher = new System.Security.Cryptography.SHA512Managed();
      Byte[] valueToHashAsByte = System.Text.Encoding.UTF8.GetBytes(string.Concat(valueToHash, salt));
      Byte[] returnBytes = hasher.ComputeHash(valueToHashAsByte);
      hasher.Clear();
      return Convert.ToBase64String(returnBytes);
}
 
参考： http://dev.mjxy.cn/a-Generate-hash-strings.aspx