File: Security\Cryptography\ICryptoService.cs
Project: ndp\fx\src\xsp\system\Web\System.Web.csproj (System.Web)
// <copyright file="ICryptoService.cs" company="Microsoft">
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// </copyright>                                                                
namespace System.Web.Security.Cryptography {
    using System;
    // Represents an object that can perform cryptographic operations.
    // Get an instance of this class via an ICryptoServiceProvider (like AspNetCryptoServiceProvider).
    internal interface ICryptoService {
        // Protects some data by applying appropriate cryptographic transformations to it.
        byte[] Protect(byte[] clearData);
        // Returns the unprotected form of some protected data by validating and undoing the cryptographic transformations that led to it.
        byte[] Unprotect(byte[] protectedData);