asp.net - 使用SimpleMembershipProvider时使用盐

Answer 1

PasswordSalt列未使用，但是在创建存储在“密码”字段中的哈希密码时会使用盐化。如果查看SimpleMembershipProvider的源代码，则可以看到以下内容：http://aspnetwebstack.codeplex.com/SourceControl/changeset/view/3a669e7112e7#src%2fWebMatrix.WebData%2fSimpleMembershipProvider.cs

检查CreateUserAndAccount方法。它使用Crypto.HashPassword方法：

    /* =======================
     * HASHED PASSWORD FORMATS
     * =======================
     * 
     * Version 0:
     * PBKDF2 with HMAC-SHA1, 128-bit salt, 256-bit subkey, 1000 iterations.
     * (See also: SDL crypto guidelines v5.1, Part III)
     * Format: { 0x00, salt, subkey }
     */

    public static string HashPassword(string password)
    {
        if (password == null)
        {
            throw new ArgumentNullException("password");
        }

        // Produce a version 0 (see comment above) password hash.
        byte[] salt;
        byte[] subkey;
        using (var deriveBytes = new Rfc2898DeriveBytes(password, SaltSize, PBKDF2IterCount))
        {
            salt = deriveBytes.Salt;
            subkey = deriveBytes.GetBytes(PBKDF2SubkeyLength);
        }

        byte[] outputBytes = new byte[1 + SaltSize + PBKDF2SubkeyLength];
        Buffer.BlockCopy(salt, 0, outputBytes, 1, SaltSize);
        Buffer.BlockCopy(subkey, 0, outputBytes, 1 + SaltSize, PBKDF2SubkeyLength);
        return Convert.ToBase64String(outputBytes);
    }

基本上可以解决您的问题，它在没有任何其他麻烦的情况下也非常安全。