c# - 'System.Security.Cryptography.Rfc2898DeriveBytes' : type used in a using statement must be implicitly convertible to System. IDisposable

Question

我的代码在 .Net Framework 4.5 中工作，但是当我尝试在 .Net Framework 2.0 中编写相同的代码时，出现编译错误

'System.Security.Cryptography.Rfc2898DeriveBytes': type used in a using statement must be implicitly convertible to System.IDisposable

如何解决？

代码

[ComVisible(true)]
    public string HashPassword(string password)
    {

        byte[] salt;
        byte[] subkey;
        using (var deriveBytes = new Rfc2898DeriveBytes(password, SaltSize, PBKDF2IterCount))
        {
            salt = deriveBytes.Salt;
            subkey = deriveBytes.GetBytes(PBKDF2SubkeyLength);
        }

        var outputBytes = new byte[1 + SaltSize + PBKDF2SubkeyLength];
        //some more code goes here
        return Convert.ToBase64String(outputBytes);
    }

Answer 1

从 André's 中汲取灵感评论，看起来 Dispose 方法直到 .NET 4 才被引入:DeriveBytes.Dispose (注:“其他版本”)

您可以看一下Dispose 方法在当前框架中是如何实现的，并考虑将其应用到您的项目中:Source Browser