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AccountPlus

, 10 Sep 2009
A Complete Account Management System
accountplus.zip
AccountPlus
AccountPlus
AccountPlus.JPG
Database
AccountPlus.mdb
Documents
AccountPlus.doc
Thumbs.db
Setup
setup.msi
Thumbs.db
Source_Code.zip
accountplussource.zip
AccountPlusSource
AccountPlus.BusinessLogic
AccountPlus.BusinessLogic.csproj.user
Properties
AccountPlus.Configurations
Properties
AccountPlus.DataAccess
Properties
AccountPlus.Formatting
Properties
AccountPlus.Messaging
Properties
AccountPlus.Setup
AccountPlus.Setup.CustomActions
Properties
Settings.settings
AccountPlus.Setup.vdproj
AccountPlus.UserInterface
AccountPlus.UserInterface.csproj.user
AccPlus.csproj.user
Help
AccountPlus.pdf
log4net.dll
Properties
Settings.settings
propertiesORoptions.ico
Assemblies
log4net.dll
database.zip
Database
MS Access
AccountPlus.mdb
MySQL
SQL Server
Backup
AccountPlus.bak
Script
setup.zip
Setup
Setup.msi
using System;
using System.Collections.Generic;
using System.Text;
using System.Security.Cryptography;
using System.IO;

namespace AccountPlus.BusinessLogic
{
    /// <summary>
    /// Class to be used for providing security to sensitive data by Encryption/ Decryption
    /// </summary>
    public class DataSecurity
    {
        static byte[] bytes = ASCIIEncoding.ASCII.GetBytes("ZeroCool");

        /// <summary>
        /// Encrypt normal string.
        /// </summary>
        /// <param name="originalString">String to be encrypted.</param>
        /// <returns>Encrypted string</returns>
        public string Encrypt(string originalString)
        {
            if (String.IsNullOrEmpty(originalString))            
                return string.Empty;
            
            DESCryptoServiceProvider cryptoProvider = new DESCryptoServiceProvider();
            MemoryStream memoryStream = new MemoryStream();
            CryptoStream cryptoStream = new CryptoStream(memoryStream,
                cryptoProvider.CreateEncryptor(bytes, bytes), CryptoStreamMode.Write);
            StreamWriter writer = new StreamWriter(cryptoStream);
            writer.Write(originalString);
            writer.Flush();
            cryptoStream.FlushFinalBlock();
            writer.Flush();
            return Convert.ToBase64String(memoryStream.GetBuffer(), 0, (int)memoryStream.Length);
        }

        /// <summary>
        /// Decrypt encrypted string to the normal string
        /// </summary>
        /// <param name="cryptedString">Decrypted string</param>
        /// <returns>Normal (Decrypted) string</returns>
        public string Decrypt(string cryptedString)
        {
            if (String.IsNullOrEmpty(cryptedString))
            {
                throw new ArgumentNullException
                   ("The string which needs to be decrypted can not be null.");
            }
            DESCryptoServiceProvider cryptoProvider = new DESCryptoServiceProvider();
            MemoryStream memoryStream = new MemoryStream
                    (Convert.FromBase64String(cryptedString));
            CryptoStream cryptoStream = new CryptoStream(memoryStream,
                cryptoProvider.CreateDecryptor(bytes, bytes), CryptoStreamMode.Read);
            StreamReader reader = new StreamReader(cryptoStream);
            return reader.ReadToEnd();
        }
    }
}

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License

This article, along with any associated source code and files, is licensed under The GNU Lesser General Public License (LGPLv3)

About the Author

Ashish Tripathi
Founder Aspirea Technologies Pvt Ltd
India India
• 8 years of experience in IT Industry as a Developer.
• Experience of End-To-End Software Development and Implementation (Entire SDLC i.e Software Development Life Cycle)
• Real time Exposure to Banking, Finance and Energy industry.
• Expertise in distributed application architecture as well as web based applications using Microsoft.NET platform.
• Expertise in database design, SQL programming and SQL performance tuning.
• Expertise in Web Services and WCF Services.
• Experience of Rich Internet Application using Adobe Flex.
• Experience in migration of legacy application to latest technology, migration of VB application to .NET.
• Knowledge of OOPS and Design Concepts.
• Expertise in Agile/ Scrum software development processes.
 
Specialties
• Languages\ Technologies-
.NET Framework 1.1/2.0/3.0/3.5, C#.NET, VB.NET, ASP.NET, VB6, AJAX, ASP.NET, Adobe Flex 3.0, Web Services, Windows Communication Foundation (WCF), LINQ, SQL Server, Oracle, MySql, MS Access, HTML, XML, JavaScript, C# Script, CSS and XSLT.
 
• Methodology/ Concepts-
OOPS, Data Structures, Design Concepts and Agile/ Scrum Software Development
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