EncryptAndDecrypt.SHA1_Encrypt Method

public string SHA1_Encrypt(string text)
 {
     using (SHA1Managed sha1 = new SHA1Managed())
     {
         var hash = sha1.ComputeHash(Encoding.UTF8.GetBytes(text));
         var sb = new StringBuilder(hash.Length * 2);
         foreach (byte b in hash)
             sb.Append(b.ToString("X2"));
         return sb.ToString();
     }
 }