Cryptography			top
Title / Updated	Author	Score
Neural Cryptography Updated: 29 Aug 2009 This article presents a new cryptography algorithm based on neural networks. Here, you can find some theory and a demo project. Windows, Dev	CyberTrone	5.00
Authenticated Encryption - Unedited Updated: 23 Mar 2009 Perform Authenticated Encryption with Crypto++ C++ (VC6, VC7, VC7.1, VC8.0), C, Windows (WinXP, Win2003, Vista, Win2008), Architect, Dev, Design	Jeffrey Walton	4.95
Creating an Asymmetric/Symmetric Secure Stream without SSL Updated: 24 Oct 2009 The article explains how to create a secure stream that uses asymmetric cryptography to connect and symmetric cryptography to continue without the need for SSL or Certificates C# (C# 3.0), .NET (.NET 3.5), Architect, Dev	Paulo Zemek	4.93
A simple C++ implementation of Elliptic Curve Cryptography Updated: 7 Jan 2008 A finite field EC and simple ECC scheme in C++ to help understand the principles. C++ (VC7.1, VC8.0), Windows (Win2K, WinXP, Win2003, Vista, TabletPC, Embedded), Win32, STL, Architect, Dev	Jarl Ostensen	4.89
WinAES: A C++ AES Class Updated: 27 Mar 2009 Yet another C++ class wrapper for AES and Windows CAPI. C++WinXP, Win2003, Vista, Embedded, Win2008, Win32, Win64, Dev	Jeffrey Walton	4.88
Product Activation Based on RSA Signatures Updated: 6 Jun 2007 Validate Product Keys using RSA Signing Functions and Crypto++ VC6, VC7, VC7.1, WindowsVS.NET2003, VS2005, Dev	Jeffrey Walton	4.81
Cryptographic Interoperability: Keys Updated: 5 Jun 2008 Import and export Cryptographic Keys in PKCS#8 and X.509 formats, using Crypto++, C#, and Java. C++ (VC6, VC7, VC7.1, VC8.0), C# (C# 2.0, C# 3.0), Windows (Win2K, WinXP, Win2003, Vista), .NET (.NET 2.0, .NET 3.0, .NET 3.5), Win32, Win64, Dev	Jeffrey Walton	4.81
Product Keys Based on the Advanced Encryption Standard (AES) Updated: 12 Jun 2007 A Compact Product Key System Based on AES and Crypto++ C++, WindowsVS.NET2003, Dev	Jeffrey Walton	4.78
Cryptographic Interoperability: Digital Signatures Updated: 20 Oct 2009 Sign and verify messages using Crypto++, Java, and C#. C++ (VC7, VC7.1, VC8.0), C# (C# 2.0, C# 3.0), Java, Windows (Win2K, WinXP, Win2003, Vista), Win32, Dev	Jeffrey Walton	4.77
WinAESwithHMAC: A C++ AES/HMAC Class Updated: 30 Mar 2009 A C++ class providing encryption and authentication using Windows CAPI. C++ (VC6, VC7, VC7.1, VC8.0)WinXP, Win2003, Vista, Win2008, Win32, Win64, Dev	Jeffrey Walton	4.73
Applied Crypto++: Block Ciphers Updated: 6 Apr 2008 Encrypt data using Block Ciphers with Crypto++. C++ (VC6, VC7, VC7.1, VC8.0), Windows (Win2K, WinXP, Win2003, Vista, TabletPC, Embedded), Win32, Win64, Dev	Jeffrey Walton	4.70
TEA Encryption/Decryption Made Simple Updated: 20 Dec 2008 Easy to use crypto class that uses TEA, XTEA and XXTEA standards VC8.0, Windows, MFC, Dev	Michael Mogensen	4.69
Creating a secure channel Updated: 24 May 2008 The purpose of this article is to explain how a secure channel is built. The article will explain the structure of a Very Simple Secured Protocol (VSSP) that sits above the TCP/IP layer. C# (C# 2.0), Windows (WinXP), Dev	Efi Merdler	4.69
Neat License Updated: 20 Dec 2007 An article on how to use a code-signing key to sign other data C# 2.0.NET 2.0, Dev	PTJA	4.64
Cryptography 101 for the .NET Framework Updated: 22 Dec 2006 An introduction to key cryptographic concepts supported by the .NET Framework. VB.NET 2.0, WinXP, Win2003, VistaVS2005, Dev	Toby Emden	4.62
Encryption and compression, native and managed Updated: 26 Aug 2009 DLL for native encryption and compression (using Crypto++). Includes RSA Key Generator in C#, and encryption and compression in ASP.NET (C#). C++, C#, Windows, .NET, ASP.NET, Dev	ErnestoNet	4.60
Tamper Aware and Self Healing Code Updated: 15 Nov 2007 Dynamically Detect Code Alterations and Repair In-Memory Executable Files Using Hashing and Crypto++ VC7, VC7.1, VC8.0Win2K, WinXP, Win2003, VistaVS.NET2003, VS2005, Dev	Jeffrey Walton	4.59
Obtain the plain text session key using CryptoAPI Updated: 10 Dec 2001 Generally it's very important to obtain the value of session keys. However, the Microsoft Cryptographic Providers (Base and Enhanced) do not support this feature. CryptExportKey() and CryptImportKey() require a valid key handle to encrypt and decrypt the session key, respectively. VC6, VC7Win2K, WinXP, MFC, Dev	Raphael Amorim	4.57
The FileDigest program and the C++ implementation of some Message-Digest algorithms Updated: 3 Jan 2003 Presenting the C++ implementation of some known and efficient Message-Digest algorithms (MD, RIPEMD, SHA) and a full FileDigest program that is applying the mentioned algorithms. VC6, VC7Win2K, WinXP, MFC, Dev	George Anescu	4.55
A C++ Implementation of the Blowfish Encryption/Decryption method Updated: 26 Sep 2001 An article presenting a C++ implementation of the Blowfish encryption/decryption method VC6Win2K, Dev	George Anescu	4.52
A C++ Implementation of the Rijndael Encryption/Decryption method Updated: 7 Nov 2002 An article presenting a C++ implementation of the Rijndael (AES) encryption/decryption method. VC6Win2K, Dev	George Anescu	4.46
Shared Key Generation using Diffie-Hellman Updated: 25 Mar 2008 Generate an encryption key between two parties and foil the eavesdropper C#	Jonathan C Dickinson	4.44
Hiding a text file in a bmp file Updated: 26 Nov 2003 How to hide a text file in a bmp file VC6Win2K, WinXP, MFC, Dev	Adore C++	4.43
Presentation of the XOR256 Encryption/Decryption method for the block ciphering case Updated: 8 Jun 2001 An article presenting a new block ciphering method called XOR256 VC6Win2K, Dev	George Anescu	4.38
A simple MFC class to encrypt data with the Crypto API Updated: 3 Jul 2007 An article showing how to use the Crypto API to make a simple MFC class that can encrypt and decrypt different types of data C++, Windows, Visual Studio, MFC, Dev	Dave Kerr	4.24
CMD5: A C++ Message Digest 5 Class Updated: 9 Jan 2001 This C++ class serves as a wrapper for the Message Digest 5 code described in the Internet RFC 1321. VC6Win2K, Dev	Jim Howard	4.21
C# FNV Hash Updated: 18 May 2009 A C# class for creating a custom sized FNV hash. C#, Windows, .NET, Dev	Jasmin Muharemovic	4.17
A simple set of classes to encrypt data Updated: 4 Nov 2004 A simple set of classes to encrypt data VC6Win2K, WinXP, Win2003, MFC, Dev	Rob Manderson	4.15
Hashing using the Win32 Crypto API Updated: 22 Jul 2005 How to make hashing using the Win32 Crypto API. VC6WinXP, Dev	Jessn	4.12
CHash 1.5 - An MFC hashing class Updated: 9 Aug 2005 An MFC implementation of hashing files and strings with CRC32, GOST-Hash, MD2, MD4, MD5, SHA-1 and SHA-2 (256/384/512). VC6, Windows, Dev	.rich.w	4.03
CBBS: A Pseudo Random Number Generator Updated: 13 Jul 2007 A C++ class implementation of the pseudorandom number generator Blum Blum Shub (BBS) C++, Windows, Visual Studio, Dev	Alexandre Ravey	4.00
Message Digest Application Updated: 30 Mar 2004 A program which generates the various Message Digests using only one Class, also including the different techniques for Base 64 Encoding And Decoding VC6, Windows, Visual Studio, Dev	Shinde Vikram V.	3.86
RC6 encryption and decryption Updated: 14 Jul 2002 RC6 is an evolutionary improvement of RC5, designed to meet the requirements of the Advanced Encryption Standard (AES). VC6Win2K, MFC, Dev	Mingming Lu	3.74
A Simple, Portable, Rinjdael (AES) Based Stream Cipher Class Updated: 5 Jul 2005 A file encryption/decryption class with built in MD5 string and file hashing. VC6Win2K, WinXP, MFC, Dev	Douglas R. Keesler	3.73
Fortuna - A Cryptographically Secure Pseudo Random Number Generator Updated: 3 Mar 2004 A C++ component to generate cryptographically secure pseudo random numbers using the Fortuna Algorithm VC7Win2K, WinXP, Dev	citadel	3.68
SteganoPad - Steganographic Notepad Updated: 24 Dec 2008 Only the user can see the words on screen C++/CLI, C, VC6, VC7, VC7.1, VC8.0Win2K, WinXP, Win2003, Vista, TabletPC, MFC, VS2005	nbugalia	3.67
ARACrypt - a crypto class Updated: 24 May 2002 Extremely simple crypto class VC6, VC7Win2K, WinXP, Visual Studio, MFC, Dev	Darroll Walsh	3.65
Extended Password Generator Updated: 20 Jun 2006 The tool-at-hand of any system administrator to generate pronounceable and random passwords, secured against brute-force dictionary attacks. C++ (VC7.1), Windows (Win2K, WinXP), Visual Studio, MFC, Dev	Eugene Podkopaev	3.63
Diffie-Hellman Key Exchange Example Updated: 14 Nov 2008 An example of how an encryption key can be shared by two users using the Diffie-Hellman key exchange approach. VC7.1Win2K, WinXP, Win2003, MFC, VS.NET2003, Dev	Griffter UK	3.45
Encryption using the Win32 Crypto API Updated: 8 Sep 2005 How to encrypt using the Win32 Crypto API. VC6WinXP, MFC, Dev	Jessn	3.42
Using encryption in your server and embedded applications Updated: 24 Feb 2002 Explains the encryption algorithm selection process. VC6, VC7Win2K, WinXP, Visual Studio, MFC, Dev	shanthu	3.40
Fast Simple Secure Encryption Routine Updated: 28 Jul 2002 A simple secure algorithm that can be used in your programs VC6, VC7Win2K, WinXP, Visual Studio, MFC, Dev	Shrishail Rana	3.39
Spoofing the Wily Zip CRC Updated: 31 May 2003 How Zip CRCs work and how to create a specific file CRC VC6, VC7, Windows, Visual Studio, Dev	mdgray	3.39
Hide a file in a BMP file (Plus). Updated: 27 Nov 2003 Hide a file in a BMP file: extended from the author Ahmed Osama's article. VC6, VC7, VC7.1Win2K, WinXP, Win2003, MFC, VS.NET2003, Dev	Neil Xu	3.23
Use Windows Crypto API to calculate a MD5 string. Updated: 29 Aug 2002 Use Windows Crypto API to calculate a MD5 string. VC6, VC7Win2K, WinXP, MFC, Dev	Victor M. Valenzuela	3.02
Registry Value Encryption and Decryption Updated: 25 Feb 2004 Simple classes to perform crypt and registry operations VC6Win2K, WinXP, Win2003, MFC, Dev	jithus	2.82
Hex Encoder and Decoder using Crypto++ Updated: 20 Nov 2000 Encode binary data to and from hexadecimal format using the Crypto++ library VC6Win2K, Visual Studio, STL, Dev	Shaun Wilde	2.82
A simple 32-bit block file encryption application Updated: 25 Jun 2007 Uses pseudo-random bit rotations and xor on 32-bit integer blocks to encrypt/decrypt files. C++, Windows, Visual Studio, Dev	defconomicron	2.71
CSHADigest: A fast and single class implementation of SHA1 Digest algorithm Updated: 14 Mar 2005 A single class implementation of SHA1 Digest in Unix/Win - simple and fast. VC6, VC7.1, WindowsVS.NET2003, Dev	Adrien Pinet	2.60
File Encryption and Encrypted text embedding in an image Updated: 20 Sep 2003 This is an encryption tool which encrypts all files and can embed the encrypted data in an image. For encryption three ciphers are used ASG, SG, RC4. VC6Win2K, WinXP, Win2003, MFC, Dev	Tahir Naeem	2.09
The RC4 algorithm within a COM component Updated: 11 Jul 2005 The RC4 algorithm within a COM component made with C++ and ATL. VC6Win2K, ATL, Dev	Jessn	1.86
.NET - Encryption			top
Title / Updated	Author	Score
RFC3394 Key-wrapping Algorithm in C# Updated: 31 Oct 2008 An implementation of the RFC3394 AES key-wrapping algorithm. C# (C# 2.0), XML, .NET (.NET 2.0, Mono), Dev	ladenedge	4.82
Using RSA Public Key Encryption in a Shared Web Hosting Environment Updated: 22 Jun 2009 This article provides a way to use RSA public key encryption in scripts running on a Web server hosted by a shared hosting company. It also demonstrates how to use RSA in .NET to solve the 'real world' problem of signing license codes so that they cannot be forged. C# (C# 2.0), Windows (WinXP, Win2003, Vista), .NET (.NET 1.1, .NET 2.0), ASP.NET, IIS (IIS 5.1, IIS 6, IIS 7), Visual Studio (VS.NET2003, VS2005), Dev	Paul Sanders (AlpineSoft)	4.80
RSA Private Key Encryption Updated: 5 Aug 2009 How to encrypt data using a private key in .NET. C# 1.0, C# 2.0, C# 3.0, .NET, Dev	Dudi Bedner	4.77
An S/MIME Library for Sending Signed and Encrypted E-mail Updated: 24 Aug 2009 Send signed and encrypted e-mail in accordance with RFC 2633 C#, Windows, .NET (.NET 3.5), Dev	Pete Everett	4.75
.NET Encryption Simplified Updated: 29 Jan 2007 A simple, string-oriented class for symmetric encryption, asymmetric encryption, and hashing. VB, Windows, .NET 1.0, .NET 1.1, .NET 2.0VS.NET2003, VS2005, Dev	wumpus1	4.70
Password protecting IO streams Updated: 28 Aug 2006 An article on protecting a stream with a password by means of symmetic encryption. C#, Windows, .NET 2.0VS2005, Dev	Alex Perepletov	4.67
Vernam encryption/decryption of files Updated: 27 Sep 2008 Class for encrypting/decrypting files using a Vernam chipher. C# (C# 2.0, C# 3.0), Windows, .NET, Dev	Günther M. FOIDL	4.67
Using XML Digital Signatures for Application Licensing Updated: 23 Nov 2005 Use XML Digital Signatures for a request- and signing-based licensing mechanism for your applications. C#.NET 1.0, .NET 1.1, Win2K, WinXP, Win2003, Dev	Heath Stewart	4.66
Exploiting MD5 collisions (in C#) Updated: 20 Sep 2005 This article shows how the MD5 collisions can be used to tamper software distribution schemas. C#, Windows, .NET 1.1, ASP.NET, VS.NET2003, CEO, Architect, DBA, Dev, QA	ediazc	4.48
Using Encryption in .NET Updated: 26 Jun 2009 An article that describes the beginning steps to encryption using the .NET Framework. C# (C# 1.0, C# 2.0, C# 3.0)	logicchild	4.45
How To: Hash Data Using MD5 and SHA1 Updated: 13 Aug 2009 Sample application describing how to use the MD5 and SHA1 classes. C# 1.0, C# 2.0, C# 3.0, .NET, Dev	Waleed Elkot	4.45
Public Key RSA Encryption in C# .NET Updated: 29 Jan 2007 1024/2048 bit RSA cryptography in a "Notepad style" program. C#.NET 1.1, WinXP, Win2003VS.NET2003, Dev	Mathew John Schlabaugh	4.39
Cryptor - Encrypt Files With Rijndael 256 bit Updated: 20 Jan 2006 A simple utility for encrypting files using 256 bit Rijndael (AES). Also, adds menu items to Windows Explorer's file context menu for easy access. VB, Windows, .NET 1.1VS.NET2003, Dev	kasik	4.34
XCrypt - encryption & decryption class wrapper Updated: 18 Aug 2003 A generic encryption & decryption class wrapper for C#. C#.NET 1.0, Win2K, Dev	pdwolf	4.26
Encrypt/Decrypt Files in VB.NET (Using Rijndael) Updated: 4 Nov 2005 How to encrypt and decrypt files using Rijndael. VB, Windows, .NET 1.1VS.NET2003, Dev	Thad Van den Bosch	4.24
Strong and Fast Data Encryption with the CAST-128 Algorithm Updated: 27 May 2006 An effective implementation of the CAST-128 algorithm (ECB and CBC modes). C#, VB, Windows, .NET 1.1, .NET 2.0, WinForms, VS.NET2003, VS2005, Dev	Andrey Dryazgov	4.18
.NET cryptography library for files and strings Updated: 29 Dec 2005 This is a VB.NET wrapper for the .NET framework cryptography classes (HashAlgorithm, SymmetricAlgorithm) for working with strings and files. VB, Windows, .NET 1.1VS.NET2003, Dev	HanreG	4.16
Don't touch my log, how to protect your XML data with Xml-DSig Updated: 1 Aug 2005 Shows a simple class for digital signature generation and verificacion. C#, XML, .NET CF, .NET 1.1, .NET 2.0, Win2K, WinXPVS.NET2003, VS2005, Dev	ediazc	4.10
Simple encrypting and decrypting data in C# Updated: 25 Dec 2003 Well documented code showing how to do crypto in C# and the .NET framework. C#, Windows, .NET 1.0, .NET 1.1, Visual Studio, Dev	DotNetThis	4.02
Binary to Text Encode/Decode Class Updated: 9 Jun 2004 A .NET class Library to handle the encoding/decoding of QuotedPrintable, UUEncode, Base64 and Yenc algorithms. VB, Windows, .NET 1.1VS.NET2003, Dev	Frederico Daupias de Alcochete	4.02
How To Use Rijndael to Encrypt Any File Easily? Updated: 2 Jul 2009 Encrypt any file easily C#	qxcjust	4.00
Cryptography in .NET (part 1) Updated: 5 Mar 2003 Use the .NET Framework's Cryptography Classes to secure your data. VB.NET 1.0, Win2K, WinXP, Dev	Sameers (theAngrycodeR)	3.83
Good Bye MD5 Updated: 20 Sep 2005 The cracking of MD5 is making it useless? Windows, .NET, Visual Studio, CEO, Architect, DBA, Dev, QA	ediazc	3.73
P2P Secure File, Encrypt and Decrypt Any File with Password Updated: 5 Apr 2008 Protect any file by encryption and decryption with password. It encrypts the file and saves as secure XML with binary format, and stores file password as custom PK encrypter routine. XML, VB 7.x, VB 8.0, VB 9.0.NET 1.0, .NET 1.1, .NET 2.0, Win2K, WinXP, Win2003, Vista, .NET 3.0, WinForms, Architect, Dev, Design	Atanu Maity	3.61
An MD5 Function Compatible with PHP Updated: 14 Jul 2005 Describes an implementation of a MD5 function compatible with the PHP function. C#, Windows, .NET 1.1, ASP.NET, PHP, VS.NET2003, Architect, Dev	ediazc	3.57
Simple String Encryption and Decryption with Source Code Updated: 21 Feb 2008 Sample program for simple encryption and decryption of strings C#	Lovely M	3.38
Creating a Secure, Efficient Backup Client Updated: 19 Nov 2003 Describes some underlying concepts and techniques that are helpful when needing to copy data securely and efficiently. C#, Windows, .NET 1.0, .NET 1.1, Visual Studio, Dev	Steven Campbell	3.33
Cryptographically Strong Random Password Generation Updated: 1 Nov 2005 An article on creating a simple, but robust cryptographically strong password generator. C#, Windows, .NET, Visual Studio, Dev	Wil Peck	3.21
Encryption/Decryption with .NET Updated: 14 Mar 2002 A .NET SymmetricAlgorithm security class wrapper for in memory encryption/decryption with a private key C#, Windows, .NET 1.0, ASP.NET, Dev	Frank Fang	3.05
Data Compression and Data Encryption Updated: 10 Aug 2006 Data Compression and Data Encryption C# 2.0, Windows, .NETVS2005, Dev	medo_elbatah	3.00
Secure Encryption For Data Storage with Key Re-use Updated: 22 Jul 2008 Enhanced encryption algorthim for data storage (console app) C++/CLI, C, VC6, VC7, VC7.1, VC8.0	Tom Stone	2.83
Secret Key Encryption in .NET Updated: 28 Nov 2004 Implemnts secret key encryption. VB, Windows, .NET 1.0, .NET 1.1VS.NET2003, Dev	Adnan Samuel	2.61
Implementing Caesar Cipher in VB.NET Updated: 2 Nov 2006 This article implements Caesar Cipher (shift by 3) in VB.NET. VB, Windows, .NET 2.0VS2005, Dev	Deobrat Singh	2.53
Deriving Encryption Keys From Passwords Updated: 25 Jul 2005 Show how to generate and store your keys for cryptography in safe mode C#, Windows, .NET, Visual Studio, Dev	ediazc	2.50
Automated File Decryption Using GnuPG and C# Updated: 11 Dec 2007 How To: Automate decryption of PGP / GnuPG encrypted files. C# (C# 1.0, C# 2.0), Windows (Win2K, WinXP), ASP.NET, Dev	Kurt Mang	2.50
Encrypt and sign data using PKCS #12 Certificates Updated: 12 Jun 2005 Encrypt and sign data using PKCS #12 certificates. VB.NET 1.1, Win2K, WinXP, Win2003VS.NET2003, CEO, Architect, DBA, Dev	Adnan Samuel	2.48
Learn the TripleDES encryption algorithm in a minute Updated: 24 Feb 2008 Triple Data Encryption Standard algorithms from which all TripleDES implementations must derive. VB, .NET (.NET 2.0), Dev	Imran A Momin	2.43
Secret Key Encryption Demo Updated: 25 Jul 2008 This application demonstrates how to perform secret encryption using VB.NET and the .NET Framework 3.0. VB 9.0.NET 3.0, Dev	VB Rocks	2.33
Would you, please, take your eyes OFF my sensitive data?! - Unedited Updated: 10 Nov 2008 A C++ namespace, non-ATL yes-MFC dependent, to encrypt/decrypt data in a form of a byte array, using a symmetric algorithm, OR, how to keep an eye in your sensitive data, and the other (better yet, both) in a beautiful lady... C++ (VC7.1), Windows (WinXP), MFC, Dev	aljodav	2.15
All about Cryptography in .NET Updated: 20 Dec 2004 Cryptography classes available in .NET. C#.NET 1.0, .NET 1.1, Win2K, WinXP, Win2003, ASP.NET, Visual Studio, IIS 6, Dev	AtulMalhotra	1.55
General			top
Title / Updated	Author	Score
K3YK4Y String Hasher Updated: 18 Aug 2008 Advanced/Not-So Advanced string and password hash. VB 7.x, VB 8.0, VB 9.0, VB 6, .NET, Visual Studio, Dev	trecool999	1.67
.NET - Security			top
Title / Updated	Author	Score
Free PHP Encoder Application Updated: 4 Aug 2009 A free PHP encoder application. C#	Sần Hải Quang	5.00
Removing strong-signing from assemblies at file level (byte patching) Updated: 19 Jul 2007 This article describes how to remove strong signing from .NET assemblies without recompiling code. C#, Windows, .NET 2.0VS2005, Dev	Andrea Bertolotto	4.85
Software Development: Build your own Windows Security Center Updated: 9 Aug 2009 I think many users have been wondering how Windows Security Center is built. Well, in this article I will demonstrate how Windows® XP Security Center is made. How it’s working? Etc. C# (C# 1.0, C# 2.0, C# 3.0), Windows (WinXP), .NET (.NET 1.0, .NET 1.1, .NET 2.0), Visual Studio (VS2005, VS2008), CEO, Architect, Dev, Design, SysAdmin	Coder24.com	4.83
Strong Names Explained Updated: 25 Nov 2004 .NET Strong Name technology explained C#, Windows, .NET 1.0, .NET 1.1VS.NET2003, Dev	Jan Seda (Skilldrive.com)	4.81
An Anti-Reverse Engineering Guide Updated: 9 Nov 2008 A look into what goes into the area of preventing reverse engineering, and gives developers some functions and ideas about preventing reversing engineering of their programs. C++ (VC6, VC7, VC7.1, VC8.0), C++/CLI, C, ASM, Windows (WinXP, Win2003, Vista), Win32, Win64, Visual Studio (VS.NET2003, VS2005, VS2008), Architect, Dev	Josh_Jackson	4.80
Steganography 16 - Hiding additional files in a ZIP archive Updated: 16 Apr 2006 How to zip and unzip files, avoiding the central directory. C#, Windows, .NET 2.0VS2005, Dev	Corinna John	4.79
Understanding .NET Code Access Security Updated: 14 Jan 2004 A full length article on .NET Code Access Security C#, .NET, Win2K, WinXP, Win2003, Visual Studio, Dev	UB	4.78
Simple Password Manager Using System.Security Updated: 29 Sep 2006 Password Manager is a System.Security usage example using SecureString and SymmetricAlgorithms. C# 2.0.NET 2.0, Win2K, WinXP, Win2003, WinForms, VS2005, Dev	Stefan Prodan	4.78
How to Programmatically add IP Addresses to IIS's Deny Access List using C# and WMI Updated: 31 Jul 2003 An article that shows the basic steps to programmatically adding an IP address to the IIS deny access list. C#.NET 1.1, Win2K, WinXP, Visual Studio, Dev	Scott Burgett	4.75
A Stegano-Framework for .NET Developers Updated: 2 Aug 2006 From tutorial snippets to open source project C#, Windows, .NET, Visual Studio, Dev	Corinna John	4.75
SharpPrivacy - OpenPGP for C# Updated: 7 Jun 2003 SharpPrivacy is an OpenPGP implementation in C#. It can be used to encrypt and sign data, created OpenPGP compatible keys, and a lot more. This article explains how to use the library in your own .NET application or webpage to encrypt, sign, decrypt or verify OpenPGP messages. C#, Windows, .NET 1.0, .NET 1.1, Visual Studio, Dev	gek_at	4.73
Steganography 14 - What Text Lists, GIF Images, and HTML Pages have in common Updated: 22 Jan 2005 A simple way to hide binary data in any kind of list C#, Windows, .NET 1.1, .NET 2.0VS2005, Dev	Corinna John	4.70
RSA Encryption with .NET 2.0 Cryptography Services and Crypto++ Wrapped as a Managed C++ Class Library Updated: 17 Aug 2007 Encrypt in .NET and decrypt in Crypto++, a cryptography newbie's journey. C++, C# 2.0, Windows, .NET 2.0, Visual Studio, Dev	mmsinclair	4.70
Public/Private Key Encrypted Messenger Updated: 17 Sep 2007 An article about creating a public/private key encrypted internet messenger C#, Windows, .NET 2.0, Visual Studio, Dev	Michael Demeersseman	4.69
Using the G711 standard Updated: 28 Jul 2006 Implementing the G711 µ-law and a-law codecs in C#. C#, Windows, .NET 2.0VS2005, Dev	Marc Sweetgall	4.69
Steganography IV - Reading and Writing AVI files Updated: 19 May 2004 An article about hiding bytes in the bitmap frames of uncompressed AVI files. C#, Windows, .NET 1.0, .NET 1.1, Dev	Corinna John	4.68
CCryptoTokenizer Updated: 13 Nov 2003 CCryptoTokenizer C#, Windows, .NET 1.0, Dev	raymond.fung, Norman Fung	4.67
Steganography 15 - Hiding Digital Data in Music on Audio Cassettes Updated: 4 Jun 2005 How to hide data of any kind inside a sound, and keep it alive on an analog medium. C#, Windows, .NET 2.0VS2005, Dev	Corinna John	4.66
Generic SymmetricAlgorithm Helper Updated: 15 Nov 2007 A generic helper class that exposes simplified Encrypt and Decrypt functionality for strings, byte arrays and streams for any SymmetricAlgorithm derivative (DES, RC2, Rijndael, TripleDES, etc.) C# 2.0, Windows, .NET 2.0, Visual Studio, Dev	Tony Selke	4.66
Enigma emulator in C# Updated: 9 May 2005 This article shows the inner workings of the German Enigma machine used during the WWII, translated to C#. C#.NET 1.1, Win2K, WinXP, WinForms, VS.NET2003, Dev	adi_clepcea	4.64
Steganography 13 - Hiding Binary Data in HTML Documents Updated: 13 Mar 2008 Some ideas on how to hide binary data in text documents C#, Windows, .NET 2.0VS2005, Dev	Corinna John	4.64
Copy Protection for Windows Applications (Part 2) Updated: 10 Sep 2009 Describes the implementation of a key registration, installation, and validation methodology for Windows applications. C++, Windows, COM, COM+, Architect, Dev	Foolomon	4.63
Protect your IM (Instant Messenger) conversations by encrypting them Updated: 19 Oct 2005 Learn how to encrypt IM (Instant Messenger) conversations. C#.NET 2.0, WinXPVS2005, CEO, Dev	Silviu Gologan	4.62
Introduction Into Windows Anti-Debugging Updated: 18 Sep 2008 A brief introduction into Windows anti-debugging techniques. C++ (VC6, VC7, VC7.1, VC8.0), C, ASM, Windows (Win2K, WinXP, Win2003, Vista), Win32, Visual Studio (VS.NET2003, VS2005, VS2008), Dev	Josh_Jackson	4.62
Get info about local digital certificates with WSE 2.0 and .NET Updated: 27 Feb 2007 This article describes how to get information about digital certificates stored on your local machine. It also shows how to search certificates by name, and retrieve a certificate hash. VB 7.x, Windows, .NET 1.1VS.NET2003, Dev	Orka	4.60
Steganography 11- Indexed Images and their Palettes Updated: 25 Jun 2004 Hiding data of any kind in indexed Bitmaps like PNG and GIF. C#, Windows, .NET 1.0, GDI+, Dev	Corinna John	4.59
Implementing Protected Configuration With Windows Apps Updated: 29 Aug 2006 How to use the ProtectedConfiguration API to protect sensitive information in your application’s configuration file. C#, XML.NET 2.0, Win2K, WinForms, VS2005, Dev	Hameer Saleem	4.57
Insight into Security Model using Principal and Identity Objects in .NET Updated: 9 Oct 2003 This article introduces the concept behind Principal and Indentity objects in .NET and proposes a security model adopting these objects in a .NET application. VB.NET 1.0, Win2K, WinXP, Dev	* Sandeep Alur	4.56
Steganography V - Hiding Messages in MIDI Songs Updated: 5 Aug 2004 An article about hiding bytes in the Program Change events of a MIDI file C#, Windows, .NET 1.0, .NET 1.1, Dev	Corinna John	4.56
Steganography 18 - GPS Tracks and Waypoints Updated: 1 Aug 2009 Encode a message as waypoints in a GPX file. XML, C# 2.0.NET 2.0, Dev	Corinna John	4.56
Copy Protection for Windows Applications (Part 3) Updated: 16 Sep 2009 Describes the implementation of a key registration, installation, and validation methodology for Windows applications C++, C#, Windows, .NET, COM, COM+, Architect, Dev	Foolomon	4.56
Secure Coding Technique: A Better C# Password Dialog Box Updated: 6 Aug 2003 An article demonstrating a better Password Dialog box in C# C#.NET 1.0, Win2K, WinXP, Win2003, Dev	Dana Epp	4.55
Quick and easy user-level security checks - Part 3 Updated: 16 Jun 2004 Demonstrates how to use the security library in a web application C#.NET 1.1, Win2K, WinXP, ASP.NET, VS.NET2003, Dev	Martin Cook	4.53
Copy Protection for Windows Applications Updated: 7 Sep 2009 Describes the implementation of a key registration, installation, and validation methodology for Windows applications. C++, Windows, .NET, COM, COM+, Architect, Dev	Foolomon	4.53
Using CAPICOM in .NET for Digital Signatures with ASCII/UTF8 Content Updated: 26 Feb 2005 Modifying CAPICOM Runtime Callable Wrapper (RCW) generated by TlbImp.exe to enable CAPICOM to process digital signatures with UTF8/ASCII content (mostly signed by Java). C#, MSIL, Windows, .NET 1.1VS.NET2003, Dev	Fatih KIHTIR	4.53
Steganography 12 - Regions with different data density Updated: 12 Jul 2006 Define regions inside an image to keep smooth colours free from hidden data. C#, Windows, .NET 1.0, .NET 1.1, .NET 2.0, GDI+, VS.NET2003, VS2005, Dev	Corinna John	4.49
Gnu Privacy Guard (GPG/PGP) for .NET [v1.0] Updated: 18 Sep 2003 This article provides a C# wrapper class (GnuPGWrapper) that will enable use of GnuPG (the OpenPGP Internet encryption standard) within a .NET application. C#.NET 1.0, Win2K, WinXP, Visual Studio, Dev	Emmanuel Kartmann	4.49
Steganography X - Tuning the Image Processing Updated: 29 Nov 2004 Unsafe pixel modification and bitmaps from the clipboard. C#, Windows, .NET 1.0, .NET 1.1, Dev	Corinna John	4.47
Quick and easy user-level security checks Updated: 3 Apr 2005 A library to manage the low-level details behind user-level security. C#.NET 1.1, Win2K, WinXPVS.NET2003, Dev	Martin Cook	4.47
Client/Server Encryption plus extras Updated: 19 Aug 2005 Shows how to implement an RSA encryption algorithm on a server and client environement, even through a web browser! C#.NET 1.1, Win2K, WinXP, Win2003, ASP.NET, Visual Studio, Dev	Domenic	4.45
Common application data, virtualization, and access control lists Updated: 24 Jan 2008 Vista: what to do when storing common data is needed? Windows (Win2K, WinXP, Win2003, Vista), DBA, Dev, SysAdmin	Luigi Grilli, Michela Carriero - Lyra	4.43
A simple but robust software protection and activation Updated: 18 Jun 2007 A simple but robust software protection and activation. C#, Windows, .NET 2.0VS2005, Dev	BruceWang_korea	4.43
Quick and easy user-level security checks - Part 2 Updated: 24 Jun 2004 A library to manage the low-level details behind user-level security. C#, Windows, .NET 1.1VS.NET2003, Dev	Martin Cook	4.42
A C# component to encode and decode yEnc data Updated: 12 Apr 2004 A fully tested component capable of encoding and decoding yEnc data. C#, Windows, .NET 1.0, .NET 1.1VS.NET2003, Dev	Steven Campbell	4.37
Steganography II - multiple key and carrier files Updated: 3 Apr 2004 An article about spreading hidden data over many images. C#, Windows, .NET 1.0, .NET 1.1, Dev	Corinna John	4.35
Steganography - Hiding messages in the Noise of a Picture Updated: 12 Jul 2004 Hiding all kinds of data in the pixels of bitmaps. C#, Windows, .NET 1.0, .NET 1.1, Dev	Corinna John	4.35
Steganography IX - The Cross-Format Solution Updated: 29 Nov 2004 Merging the pieces into one application. C#, Windows, .NET 1.0, .NET 1.1, Dev	Corinna John	4.34
File Encryption/Decryption with Hash Verification in C# Updated: 22 Oct 2004 This article describes how to use C# and the .NET Framework to encrypt/decrypt files, and use hash algorithms to verify that the decrypted file is valid. C#.NET 1.1, Win2K, WinXPVS.NET2003, Dev	Nathan Blomquist	4.30
SECURITY: Building Secured Applications using Microsoft® Visual Studio® 2005 and Microsoft® Application Security Tools Updated: 14 Feb 2009 Security is important to make powerful applications with high security C# 1.0, C# 2.0WinXP, VistaVS.NET2003, VS2005, VS2008, Architect	Coder24.com	4.29
Building Security Awareness in .NET Assemblies : Part 1 - Learn to break a .NET Assembly Updated: 31 Oct 2004 Building Security Awareness in .NET Assemblies : Part 1 of 3 C#, MSIL, VB 6, Windows, .NET 1.0, .NET 1.1VS.NET2003, Dev	Chua Wen Ching	4.25
Copy Protection for Windows Applications (Part 4) Updated: 21 Sep 2009 Describes the implementation of a key registration, installation, and validation methodology for Windows applications C++, C#, Windows, .NET, COM, COM+, Architect, Dev	Foolomon	4.19
Building Security Awareness in .NET Assemblies : Part 2 - Learn to protect your .NET assemblies from being tampered Updated: 31 Oct 2004 Building Security Awareness in .NET Assemblies : Part 2 of 3 C#, MSIL, VB 6, Windows, .NET 1.0, .NET 1.1VS.NET2003, Dev	Chua Wen Ching	4.17
AxiomaticTokenizer - Unedited Updated: 12 Jan 2009 Financial security with one-time tokens Javascript, HTML	GeorgeHara	4.17
A CBC Stream Cipher in C# (With wrappers for two open source AES implementations in C# and C) Updated: 4 Jul 2004 An article on .NET cryptography C#, Windows, .NET, Visual Studio, Dev	Vasian Cepa	4.15
Tamper-proof and Obfuscate your Configuration Files Updated: 5 Jan 2009 How to prevent your configuration sections from unauthorized modification (includes a nifty configuration file editor) C#, .NET, Dev	Sunny Ahuwanya	4.14
Crack the Modified Caesar Cipher with Relative Frequency Letters Updated: 29 May 2005 Crack the Modified Caesar Cipher using only relative frequency English letters. C#, Windows, .NET 1.1VS.NET2003, Dev	Dragon Slayer	4.13
Porting Java Public Key Hash to C# .NET Updated: 26 Oct 2004 This tutorial is an effort to overcome problems faced by the developers who want to sign data using Java Key Store and want to verify it on .NET platform. The tutorial demonstrates how to export the Public Key using Java to .NET compatible Public Key (XML format). C#, Java, .NET, Win2K, WinXP, Win2003, Visual Studio, Dev	Shaheryar Ch.	4.07
Modifying ACEs on file and directory DACLs, using the Win32 API Security assembly Updated: 15 Nov 2006 Sample code for setting ACE on file and directory DACLs just as the OS does. C#, Windows, .NET 1.1VS.NET2003, Dev	rmortega77	4.07
Cryptography in .NET Updated: 9 Oct 2002 Cryptography in .NET using the Windows PKI C#, Windows, .NET 1.0, Dev	Manuel Permuy	4.00
Steganography VI - Hiding messages in .NET Assemblies Updated: 22 Nov 2003 An article about hiding instructions at the end of methods in an .NET Assembly C#, Windows, .NET 1.0, Dev	Corinna John	3.97
Implementing Application Security with Client Application Services in VS2008 Updated: 17 Jul 2008 The ASP.NET provider framework for Membership, Role, and Profile functionality in .NET 3.5 is made available for non-ASP.NET consumers in the form of Client Application Services. This means that, for example, in a WinForms application, you can implement Forms Authentication as easy as in an ASP.NET C# (C# 3.0), VB (VB 9.0), .NET (.NET 3.5), WinForms, Dev	Nowak Alexander	3.92
Steganography VII - Hiding more Text in .NET Assemblies Updated: 9 Apr 2004 Another article about hiding bytes at the end of methods in a .NET Assembly. C#, Windows, .NET 1.0, Dev	Corinna John	3.91
A small and elegant bruteforcing class Updated: 14 Dec 2006 A class that returns all possible combinations of a given subset, without using recursion. C#.NET 2.0, WinXPVS2005, Dev	Filip Waeytens	3.91
Building Security Awareness in .NET Assemblies : Part 3 - Learn to break Strong Name .NET Assemblies Updated: 1 Nov 2004 Building Security Awareness in .NET Assemblies : Part 3 of 3 MSIL, VB 6, Windows, .NET, Visual Studio, Dev	Chua Wen Ching	3.90
Applied cryptography Part 2: a tool to encrypt files on your HDD Updated: 4 Jul 2004 There is a lot of .NET cryptography articles but not many sample applications using it. This article (part 2) introduces an application to encrypt files on your hard disk to keep them secret and unreadable to others. C#, Windows, .NET 1.1VS.NET2003, Dev	Marcin Cuprjak (aka Vlad Tepes)	3.85
Cryptography in C# Updated: 14 Apr 2004 An article on cryptography in C# C#, Windows, .NET 1.1VS.NET2003, Dev	Alex Getman	3.84
How to Generate (and Validate) CD-Keys for your Software Updated: 5 Apr 2009 An example of how to implement and validate non-personal CD-Keys (ideal for distribution on the back of CD cases) VB (VB 7.x, VB 8.0, VB 9.0, VB 6), .NET, WinForms, Dev, Design	dawmail333	3.78
Steganography III - Change only one Bit per Pixel Updated: 3 Apr 2004 An article about hiding each byte of a message bit-by-bit in eight pixels. C#, Windows, .NET 1.0, .NET 1.1, Dev	Corinna John	3.77
Steganography VIII - Hiding Data in Wave Audio Files Updated: 5 May 2004 How to hide data of any kind inside a sound. C#, Windows, .NET 1.0, .NET 1.1, Dev	Corinna John	3.77
Developing a Secure Solution using Commerce Server 2002 and .NET Updated: 21 Apr 2004 Developing a secure solution using Commerce Server 2002 and .NET. C#, Windows, .NET 1.0, Visual Studio, Dev	Khalid Hai	3.73
Strategy to distribute secure database connection strings in an enterprise environment Updated: 29 Nov 2003 The article discusses a strategy to securely configure and administer a set of connection strings which can be maintained environment wise. It also talks about distributing this information securely in a huge environment to be used by authorized clients only. C++, C#, Windows, .NET 1.0, .NET 1.1, MFC, VS.NET2003, Dev	Sriram Chitturi	3.73
Watch Dog Updated: 5 Sep 2007 Execute applications with a Windows Service and ensure its existance. C#, Windows, .NET 1.1VS.NET2003, Dev	Babak Ansari	3.67
Crypto & Hashing Wrapper Classes Updated: 22 Mar 2004 Simple class wrappers that encapsulate all the built in .NET functionality of both the symmetric encryption classes and the hashing classes. C#, Windows, .NET 1.1, Visual Studio, Dev	Brad Vincent	3.65
C# WEPkey generator Updated: 25 Jul 2004 A Wepkey generator for protecting your wireless LAN. C#, Windows, .NET 1.0, .NET 1.1, .NET 2.0VS.NET2003, VS2005, Dev	Mark van den Broek	3.64
Attaching a digital certificate (public key) to an HTTPS request Updated: 6 Aug 2008 Posting data to HTTPS (a secure connection) URL from a Windows application (.NET) by attaching a digital certificate and getting the response back. C# (C# 2.0), Windows, .NET (.NET 2.0), Dev	Rehan Ahmad Abbasi	3.63
.NET Code Protection Solutions Review Updated: 18 Jan 2007 The article discusses .NET code protection methods. C++, Windows, .NET, Visual Studio, Dev	michaelas	3.62
Authorization Manager Access Component Updated: 11 Mar 2005 .NET Authorization using Windows Identity, X509 Certificate or ASP.NET Forms C#, VB.NET 1.1, Win2003, ASP.NET, VS.NET2003, Dev	jqd2001	3.50
The .NET Framework Security Model Updated: 28 Apr 2006 An article on the .NET framework security model. C#, Windows, .NET, Visual Studio, Dev	Alex Getman	3.50
Applied Cryptography Part 1: Simple tool to enrcypt/decrypt e-mail messages Updated: 30 Jun 2004 There is a lot of .NET cryptography articles but not many sample applications using it. This article (part 1) introduces an application that enables to send secure messages via email. C#, Windows, .NET 1.1VS.NET2003, Dev	Marcin Cuprjak (aka Vlad Tepes)	3.47
Using authentication certificates to connect to web services with Windows form applications Updated: 8 May 2007 How to use a certification to connect to an SSL channel and use a web service C#, Windows, .NET 2.0, IIS, VS2005, Dev	--==## Andy74 ##==--	3.45
Code Access Security from the perspective of the Developer and Administrator Updated: 18 Feb 2004 Looking at Code Access Security From the Perspective of the Developer and Administrator Windows, .NET 1.0, .NET 1.1, Dev	benjaminwootton	3.41
Symmetric Cryptography and Hashing in C# Updated: 12 Aug 2004 An article on symmetric cryptography and hashing. C#.NET 1.0, Win2K, WinXP, Win2003, Dev	Chidi Ezeukwu	3.38
Encrypting windows application connection strings Updated: 25 Apr 2007 This article shows a simply method of encrypting connection strings for windows applications C# 2.0, Windows, .NET 2.0SQL 2000, SQL 2005, VS2005, DBA, Dev	Daniel Kuettel	3.31
Find LastLogon Across All Windows Domain Controllers Updated: 14 Jun 2007 Use the .Net Framework to find the lastLogon for every user across all domain controllers C#, Windows, .NET, Visual Studio, Dev	Dwight Johnson	3.31
Poly-Engine Crypt String Updated: 11 Jul 2004 Hide (crypt) string with a polymorphic dynamic code ("game" with the class Stack!). VB, Windows, .NET 1.0, .NET 1.1VS.NET2003, Dev	Marcello Cantelmo	3.28
Protecting Your Software Using Simple Serial Number/Activation Key Pair Updated: 12 Aug 2008 This article guides you to simply, yet effectively, prevent your software customers from copying your product without your authorization. I admit it is not a top-security solution, and it will be easy to crack without protecting your compiled code, but it is just for conveying the idea. VB (VB 7.x, VB 8.0, VB 9.0, VB 6), Windows (Win2K, WinXP, Win2003, Vista), .NET (.NET 2.0, .NET 3.0, .NET 3.5), Win32, Visual Studio (VS2005, VS2008), Dev	Yasser M. Jaffal	3.13
PassWDCipher Updated: 4 Apr 2005 An article on password protection for applications that need them. C#, Windows, .NET 1.1VS.NET2003, Dev	Thoughthopper	3.11
Digital Signatures Updated: 11 Sep 2008 Custom digital signatures using iTextSharp C# (C# 2.0), Windows, .NET, Visual Studio (VS2008), Dev	nimeshmca	3.00
Secutirty at your Hands: Encryption of Configuration file in Whidbey Updated: 4 Jul 2005 Encryption of configuration file in Whidbey. Windows, .NET, Visual Studio, Dev	Nishith Pathak	2.82
Securing .NET Assemblies Updated: 21 Oct 2005 Making .NET assemblies secure for an enterprise. C#.NET 1.0, .NET 1.1, Win2K, WinXP, Win2003, WinForms, VS.NET2003, Dev	AtulMalhotra	2.67
Securing ADO.NET Connection Strings Updated: 25 Aug 2006 Some possible ways to encrypt and store connection strings in an ADO.NET application. VB.NET 2.0, WinXPVS2005, Dev	Levan Midodashvili	2.67
Don’t rely on obfuscation Updated: 21 Feb 2008 An article demonstrating why you should not rely on obfuscation to protect your .NET applications. C# (C# 1.0, C# 2.0, C# 3.0), MSIL, .NET, Dev	Fady Anwar	2.62
Using CryptoStream in C# Updated: 19 Mar 2004 This article explains how to use CryptoStream for simple on the fly cryptography. C#, .NET, Win2K, WinXP, Win2003, Visual Studio, Dev	WillemM	2.60
Securing Web Accounts Updated: 5 Oct 2003 Here we would briefly see how to keep accounts (signups) in online websites in a more secure way. C#, VB.NET 1.0, .NET 1.1, Win2K, WinXP, Win2003, ASP, ASP.NET, Visual Studio, Dev	Vasudevan Deepak Kumar	2.53
Ensuring Strong Passwords Updated: 10 Oct 2003 In this article, we will discuss a very brief technique and an overall idea of how to keep passwords sufficiently strong, so that a brute force generation and hack attempt could be blocked easily. C#, VB.NET 1.1, Win2K, WinXP, Win2003, ASP.NET, Visual Studio, Dev	Vasudevan Deepak Kumar	2.32
Combining Symmetric and Asymmetric Encryption Updated: 25 Oct 2004 Describes symmetric and asymmetric encryption, then shows how to combine them. VB, Windows, .NET, Visual Studio, Architect, DBA, Dev	larryjf	2.31
Exploring Security in .NET - Part I Updated: 7 Jul 2005 Exploring security features in .NET. C#, VB, Windows, .NET, Visual Studio, Dev	razi bin rais	2.13
Authentication to a phpbb based forum using C# Updated: 5 Apr 2008 Authentication to a phpbb based forum using C#. C# 1.0, C# 2.0, C# 3.0Win2K, WinXP, Win2003, Vista, PHP, Dev	gyllbert
Better way to determine and police Password Strengths - Unedited Updated: 13 Sep 2009 Perhaps my Google search mo-jo has been acting up, but I could not find a good strong C# implementation for strong passwords (in fact I really couldn’t find much outside of logical cut & paste of implementations of random Information entropy implementations) . They were all predicated on t All Topics	GarethI


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Cryptography and Security

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Cryptography

.NET - Encryption

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.NET - Security