Cryptography/Crypto.cs

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/*
 * Author: Kishore Reddy
 * Url: http://commonlibrarynet.codeplex.com/
 * Title: CommonLibrary.NET
 * Copyright: � 2009 Kishore Reddy
 * License: LGPL License
 * LicenseUrl: http://commonlibrarynet.codeplex.com/license
 * Description: A C# based .NET 3.5 Open-Source collection of reusable components.
 * Usage: Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
using System;
using System.Security.Cryptography;
using System.Text; 
using System.Configuration;

namespace ComLib.Cryptography
{

    /// <summary>
    /// Cryptography service to encrypt and decrypt strings.
    /// </summary>
    public class Crypto
	{
        private static ICrypto _provider;


        /// <summary>
        /// Create default instance of symmetric cryptographer.
        /// </summary>
        static Crypto()
        {
            _provider = new CryptoSym();
        }


        /// <summary>
        /// Initialize to new provider.
        /// </summary>
        /// <param name="service"></param>
        public static void Init(ICrypto service)
        {
            _provider = service;
        }


        /// <summary>
        /// Get reference to current encryption provider.
        /// </summary>
        public static ICrypto Provider
        {
            get { return _provider; }
        }        


		/// <summary>
		/// Encrypts the plaintext using an internal private key.