C# sha256，Base64加密算法

加密eg：

增加引用：using System.Security.Cryptography;

public string sha256(string data)
{
   byte[] bytes = Encoding.UTF8.GetBytes(data);
   byte[] hash = SHA256Managed.Create().ComputeHash(bytes);
 
   StringBuilder builder = new StringBuilder();
   for (int i = 0; i < hash.Length; i++)
   {
          builder.Append(hash[i].ToString("X2"));
   }
 
   return builder.ToString();
}

 Base64加密（亲测，好使）

/// <summary>
/// Base64加密，解密方法
/// </summary>
/// <param name="s">输入字符串</param>
/// <param name="c">true-加密,false-解密</param>
static public string base64(string s, bool c)
{
    if (c)
    {
        return System.Convert.ToBase64String(System.Text.Encoding.Default.GetBytes(s));
    }
    else
    {
        return System.Text.Encoding.Default.GetString(System.Convert.FromBase64String(s));
    }
}