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Cryptography and Security

Great Reads

Cryptographic Interoperability: Keys
by Jeffrey Walton
Import and export Cryptographic Keys in PKCS#8 and X.509 formats, using Crypto++, C#, and Java.
Authenticated Encryption
by Jeffrey Walton
Perform authenticated encryption with Crypto++.
A Stegano-Framework for .NET Developers
by Corinna John
From tutorial snippets to open source project
A C++ SHA1 and MD5 Implementation with CryptoAPI
by Marius Bancila
This article proposes a C++ implementation for computing hashes (SHA1, MD5, MD4 and MD2) on Windows with the Microsoft CryptoAPI library.

Latest Articles

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Presenting TuringFonts, a way to make uncrawable and uncopiable texts
File Encryption/Decryption Tutorial in C++
by giorgi.m
Tutorial on how to encrypt/decrypt files using C++
Two-factor Authentication Support using Google Authenticator
by Ivan Yakimov
One thing I should mention about writing two-factor authentication for work with Google Authenticator.

Research Library

Defend Against Injection Based Attacks
As our reliability on software grows each day, it becomes imperative...
Web application firewalls: Laying the myths to rest
The web application firewall (WAF) market has grown strongly in recent...
The Business Case for Earlier Software Defect Detection and Compliance
Errors that are introduced into software code can cause major problems...
Reduce Your Open Source Security Risk: Strategies, Tactics, and Tools
While there’s no doubt that open source software is here to stay, that...

Discussions

Where's the third method?
by Brisingr Aerowing on tip/trick "Get Certificates from the System Store"
SetKey() ??????
by 7798171301 on Article "Simple String Encryption and...
bootkit doesn't work with Windows 8 or 7
by jame kitty on Article "Bypassing Windows XP Logon Password...
Public Key RSA Encryption in C# .NET
by Member 11735437 on Public Key RSA Encryption in C# .NET
Error in debugging mode
by Member 11735081 on Article "iSafePDF : the open source PDF...

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Cryptography 

Cryptographic Interoperability: Keys
5 Jun 2008
Jeffrey Walton
Import and export Cryptographic Keys in PKCS#8 and X.509 formats, using Crypto++, C#, and Java.
VC6VC7VC7.1VC8.0.NET2.0Win2KWinXPWin2003VistaC#2.0
Authenticated Encryption
24 Mar 2009
Jeffrey Walton
Perform authenticated encryption with Crypto++.
VC6VC7VC7.1VC8.0WinXPWin2003VistaCArchitectDev
Secure file exchange with .NET Crypto API
8 Jan 2013
orouit
This article presents a format to exchange encrypted documents and the C# code that can handle the encryption and the decryption of the data.
C#.NETDevIntermediate
Cryptographic Interoperability: Digital Signatures
20 Oct 2009
Jeffrey Walton
Sign and verify messages using Crypto++, Java, and C#.
VC7VC7.1VC8.0Win2KWinXPWin2003VistaC#2.0C#3.0C++
Product Keys Based on the Advanced Encryption Standard (AES)
12 Jun 2007
Jeffrey Walton
A Compact Product Key System Based on AES and Crypto++
VS.NET2003VS6C++WindowsDevIntermediateVisual-Studio
The FileDigest program and the C++ implementation of some Message-Digest algorithms
3 Jan 2003
George Anescu
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.
VC6VC7Win2KWinXPVS6C++MFCDevIntermediateC++
Obtain the plain text session key using CryptoAPI
18 Jul 2012
Raphael Amorim
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.
VC6VC7Win2KWinXPMFCDevIntermediateC++Windows
Product Activation Based on RSA Signatures
6 Jun 2007
Jeffrey Walton
Validate Product Keys using RSA Signing Functions and Crypto++
VC6VC7VC7.1VS.NET2002VS.NET2003VS2005VS6WindowsDevIntermediate
Creating an Asymmetric/Symmetric Secure Stream without SSL
24 Oct 2009
Paulo Zemek
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#3.0.NET3.5C#.NETArchitectDevIntermediateC#.NET
Salted Challenge Response Authentication Mechanism (SCRAM) SHA-1
26 Mar 2014
Don Fizachi
A C# implementation of the SCRAM SHA-1 (RFC 5802) authentication protocol.
C#Windows.NETMobileDevLinuxBeginnerIntermediateMobileAndroid
A simple C++ implementation of Elliptic Curve Cryptography
7 Jan 2008
Jarl Ostensen
A finite field EC and simple ECC scheme in C++ to help understand the principles.
VC7.1VC8.0Win2KWinXPWin2003VistaTabletPCEmbeddedC++Windows
A simple set of classes to encrypt data
5 Nov 2004
Rob Manderson
A simple set of classes to encrypt data
VC6Win2KWinXPWin2003VS6MFCDevIntermediateC++Windows
A C++ Implementation of the Blowfish Encryption/Decryption method
26 Sep 2001
George Anescu
An article presenting a C++ implementation of the Blowfish encryption/decryption method
VC6Win2KVS6DevIntermediateC++WindowsVisual-Studio
Tamper Aware and Self Healing Code
15 Nov 2007
Jeffrey Walton
Dynamically Detect Code Alterations and Repair In-Memory Executable Files Using Hashing and Crypto++
VC7VC7.1VC8.0Win2KWinXPWin2003VistaVS.NET2002VS.NET2003VS2005
Creating a secure channel
24 May 2008
Efi Merdler
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.
WinXPC#2.0C#WindowsDevIntermediateAdvancedC#Windows
Applied Crypto++: Block Ciphers
6 Apr 2008
Jeffrey Walton
Encrypt data using Block Ciphers with Crypto++.
VC6VC7VC7.1VC8.0Win2KWinXPWin2003VistaTabletPCEmbedded
WinAES: A C++ AES Class
27 Mar 2009
Jeffrey Walton
Yet another C++ class wrapper for AES and Windows CAPI.
WinXPWin2003VistaEmbeddedC++Win32Win64DevBeginnerWindows
Neural Cryptography
29 Aug 2009
CyberTrone
This article presents a new cryptography algorithm based on neural networks. Here, you can find some theory and a demo project.
WindowsDevIntermediateAdvanced
Certificates to DB and Back
25 Feb 2011
Mario Majčica
Creating the X509 based on certificate and key in PEM format
C#.NETArchitectDevDesignIntermediatecryptography
A simple MFC class to encrypt data with the Crypto API
3 Jul 2007
Dave Kerr
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++WindowsVisual-StudioMFCDevIntermediate
Cryptography 101 for the .NET Framework
22 Dec 2006
Toby Emden
An introduction to key cryptographic concepts supported by the .NET Framework.
.NET2.0WinXPWin2003VistaVS2005VBDevBeginnerWindows.NET
Implementation of Diffie-Hellman Algorithm of Key Exchange
2 Apr 2010
Apriorit Inc, Tatyana Khitrova
The article is devoted to the development of the library that implements the Diffie – Hellman cryptographic algorithm of key exchange.
C++Windows
Securing Data in .NET
28 Oct 2007
Murat Firat
Need to learn further on cryptology? This article takes an overview of common cryptosystems, along with a step by step description of the Data Encryption Standard and the Advanced Encryption Standard.
.NET2.0WinXPVistaVS2005C#2.0DevAdvancedC#Windows.NET
A C++ Implementation of the Rijndael Encryption/Decryption method
7 Nov 2002
George Anescu
An article presenting a C++ implementation of the Rijndael (AES) encryption/decryption method.
VC6Win2KVS6DevIntermediateC++WindowsVisual-Studio
Chaos Based Encryption
8 Jan 2012
Simon Bridge
Generating encryption keys using Cellular Automata.
C#Windows.NETIntermediateEncryptionDecryption
Hashing using the Win32 Crypto API
22 Jul 2005
Jessn
How to make hashing using the Win32 Crypto API.
VC6WinXPVS6DevIntermediateC++WindowsVisual-Studio
CMD5: A C++ Message Digest 5 Class
9 Jan 2001
Jim Howard
This C++ class serves as a wrapper for the Message Digest 5 code described in the Internet RFC 1321.
VC6Win2KVS6DevIntermediateC++WindowsVisual-Studio
WinAESwithHMAC: A C++ AES/HMAC Class
30 Mar 2009
Jeffrey Walton
A C++ class providing encryption and authentication using Windows CAPI.
VC6VC7VC7.1VC8.0WinXPWin2003VistaC++Win32Win64
Hiding a text file in a bmp file
26 Nov 2003
Adore C++
How to hide a text file in a bmp file
VC6Win2KWinXPVS6MFCDevIntermediateC++WindowsVisual-Studio
Cryptography using the Win32 Cryptography API
9 Aug 2003
Chad Slater
An ATL COM Object Demonstrating How-to Use the Win32 Crypto API
VC6Win2KVS6ATLDevIntermediateC++WindowsVisual-Studio
TEA Encryption/Decryption Made Simple
20 Dec 2008
Michael Pauli
Easy to use crypto class that uses TEA, XTEA and XXTEA standards
VC8.0WindowsMFCDevIntermediateC++
Applied OpenSSL: CTR Mode in File Encryption
22 Feb 2011
Apriorit Inc, Eugene Wineblat
In this article, the use of open source OpenSSL library for file and disk encryption is described
VS2008C++Visual-StudioDevIntermediateAdvancedVisual-StudioEncryptionDecryption
Neat License
20 Dec 2007
PTJA
An article on how to use a code-signing key to sign other data
.NET2.0C#2.0DevIntermediateC#.NET
Encryption and compression, native and managed
29 Jun 2012
ErnestoNet
DLL for native encryption and compression (using Crypto++). Includes RSA Key Generator in C#, and encryption and compression in ASP.NET (C#).
C++C#ASP.NETWindows.NETDevIntermediate
Shared Key Generation using Diffie-Hellman
25 Mar 2008
Jonathan C Dickinson
Generate an encryption key between two parties and foil the eavesdropper
C#
Fortuna - A Cryptographically Secure Pseudo Random Number Generator
3 Mar 2004
citadel
A C++ component to generate cryptographically secure pseudo random numbers using the Fortuna Algorithm
VC7Win2KWinXPVS.NET2002DevIntermediateC++WindowsVisual-Studio
A Simple, Portable, Rinjdael (AES) Based Stream Cipher Class
5 Jul 2005
Douglas R. Keesler
A file encryption/decryption class with built in MD5 string and file hashing.
VC6Win2KWinXPVS6MFCDevIntermediateC++WindowsVisual-Studio
Diffie-Hellman Key Exchange Example
14 Nov 2008
Griffter UK
An example of how an encryption key can be shared by two users using the Diffie-Hellman key exchange approach.
VC7.1Win2KWinXPWin2003VS.NET2003MFCDevIntermediateC++Windows
CHash 1.5 - An MFC hashing class
9 Aug 2005
.rich.w
An MFC implementation of hashing files and strings with CRC32, GOST-Hash, MD2, MD4, MD5, SHA-1 and SHA-2 (256/384/512).
VC6VS6WindowsDevIntermediateC++Visual-Studio
CryptBox
18 Feb 2013
Biswas, Sumit
CryptBox helps to encrypt and decrypt files using Password Based Encryption (PBE)
JavaWindowsDevLinuxIntermediate
Presentation of the XOR256 Encryption/Decryption method for the block ciphering case
8 Jun 2001
George Anescu
An article presenting a new block ciphering method called XOR256
VC6Win2KVS6DevIntermediateC++WindowsVisual-Studio
Writing a C++ Program with the CAPICOM Component to Encrypt and Decrypt Files
1 May 2009
logicchild
How to use the CAPICOM component in C++ to encrypt and decrypt files.
VC6VC7VC7.1VC8.0DevIntermediateC++
C# FNV Hash
18 May 2009
Jasmin Muharemovic
A C# class for creating a custom sized FNV hash.
C#Windows.NETDevIntermediate
Data encryption with DPAPI
21 May 2002
Andreas S. Franci Gonçalves
A wrapper class for the Data Protection API
VC6VC7Win2KWinXPVS.NET2002MFCDevIntermediateC++Windows
Encryption using the Win32 Crypto API
8 Sep 2005
Jessn
How to encrypt using the Win32 Crypto API.
VC6WinXPVS6MFCDevIntermediateC++WindowsVisual-Studio
CBBS: A Pseudo Random Number Generator
13 Jul 2007
Alexandre Ravey
A C++ class implementation of the pseudorandom number generator Blum Blum Shub (BBS)
C++WindowsVisual-StudioDevIntermediate
Fast Simple Secure Encryption Routine
28 Jul 2002
Shrishail Rana
A simple secure algorithm that can be used in your programs
VC6VC7Win2KWinXPVisual-StudioMFCDevIntermediateC++Windows
SpaceCrypto: A Simple Crypto++ Wrapper
20 Sep 2010
SpaceSoft
To simply encrypt\decrypt your data...
C++WindowsDevLinuxIntermediate
RC6 encryption and decryption
14 Jul 2002
Mingming Lu
RC6 is an evolutionary improvement of RC5, designed to meet the requirements of the Advanced Encryption Standard (AES).
VC6Win2KVS6MFCDevIntermediateC++WindowsVisual-Studio
Hide a file in a BMP file (Plus).
27 Nov 2003
Neil Xu
Hide a file in a BMP file: extended from the author Ahmed Osama's article.
VC6VC7VC7.1Win2KWinXPWin2003VS.NET2003VS6MFCDev
Message Digest Application
30 Mar 2004
Shinde Vikram V.
A program which generates the various Message Digests using only one Class, also including the different techniques for Base 64 Encoding And Decoding
VC6WindowsVisual-StudioDevIntermediateC++
ARACrypt - a crypto class
24 May 2002
Darroll Walsh
Extremely simple crypto class
VC6VC7Win2KWinXPVisual-StudioMFCDevIntermediateC++Windows
DES and Triple DES Implementation in VB.NET
28 Jan 2010
Ted Ehrich
A simple DES/Triple DES implementation in VB.NET that doesn't have instantiation overhead.
VB.NETCF.NETDevIntermediateVBVB.NET
SteganoPad - Steganographic Notepad
24 Dec 2008
nbugalia
Only the user can see the words on screen
VC6VC7VC7.1VC8.0Win2KWinXPWin2003VistaVS2005TabletPC
Extended Password Generator
20 Jun 2006
Eugene Podkopaev
The tool-at-hand of any system administrator to generate pronounceable and random passwords, secured against brute-force dictionary attacks.
VC7.1Win2KWinXPC++WindowsVisual-StudioMFCDevIntermediateC++
Use Windows Crypto API to calculate a MD5 string.
29 Aug 2002
Victor M. Valenzuela
Use Windows Crypto API to calculate a MD5 string.
VC6VC7Win2KWinXPVS6MFCDevIntermediateC++Windows
Using encryption in your server and embedded applications
24 Feb 2002
shanthu
Explains the encryption algorithm selection process.
VC6VC7Win2KWinXPVisual-StudioMFCDevIntermediateC++Windows
Spoofing the Wily Zip CRC
31 May 2003
mdgray
How Zip CRCs work and how to create a specific file CRC
VC6VC7WindowsVisual-StudioDevIntermediateC++
HookAPI source code
31 Jan 2005
pudn.com
A system wide api source code for windows api hook developpers
VC6VC7Win2KWinXPWin2003VS.NET2002VS6DevAdvancedC++
Registry Value Encryption and Decryption
25 Feb 2004
jithus
Simple classes to perform crypt and registry operations
VC6Win2KWinXPWin2003VS6MFCDevIntermediateC++Windows
Hex Encoder and Decoder using Crypto++
20 Nov 2000
Shaun Wilde
Encode binary data to and from hexadecimal format using the Crypto++ library
VC6Win2KVisual-StudioSTLDevIntermediateC++Windows
A simple 32-bit block file encryption application
25 Jun 2007
defconomicron
Uses pseudo-random bit rotations and xor on 32-bit integer blocks to encrypt/decrypt files.
C++WindowsVisual-StudioDevIntermediate
File Encryption and Encrypted text embedding in an image
20 Sep 2003
Tahir Naeem
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.
VC6Win2KWinXPWin2003VS6MFCDevIntermediateC++Windows
CSHADigest: A fast and single class implementation of SHA1 Digest algorithm
14 Mar 2005
AdrienP
A single class implementation of SHA1 Digest in Unix/Win - simple and fast.
VC6VC7.1VS.NET2003VS6WindowsDevIntermediateC++Visual-Studio
Using hashlib++ for easily creating cryptographic checksums such as SHA1 and MD5
22 Sep 2007
gripmaster
This short article explains how to create a cryptographic checksum (a hash) with the help of the hashlib++ library.
C++WindowsVisual-StudioMFCDevBeginner
The RC4 algorithm within a COM component
11 Jul 2005
Jessn
The RC4 algorithm within a COM component made with C++ and ATL.
VC6Win2KVS6ATLDevIntermediateC++WindowsVisual-Studio
Railfence cipher encoder
2 Jan 2007
joejoeiscool
What it says on the tin.
C#Windows.NETVisual-StudioDevBeginner
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.NET - Encryption 

Vernam encryption/decryption of files
27 Sep 2008
Günther M. FOIDL
Class for encrypting/decrypting files using a Vernam chipher.
C#2.0C#3.0C#Windows.NETDevIntermediateC#
Encrypting a dataset using AES, including compression
3 Dec 2012
Mika Wendelius
Article describes how to encrypt a dataset using AES. Optionally the dataset is compressed before the encryption.
C#VBWindowsArchitectDevADO.NETDesignIntermediateVBVB.NET
An S/MIME Library for Sending Signed and Encrypted E-mail
15 Jul 2010
Pete Everett
Send signed and encrypted e-mail in accordance with RFC 2633
.NET3.5C#WindowsDevIntermediate.NET
iSafePDF: The Open Source PDF Signature Tool
3 Jun 2010
Alaa-eddine KADDOURI
iSafePDF is an Open Source software to sign, timestamp, and encrypt PDF documents.
C#Windows.NETDevIntermediate
Using XML Digital Signatures for Application Licensing
23 Nov 2005
Heath Stewart
Use XML Digital Signatures for a request- and signing-based licensing mechanism for your applications.
.NET1.0.NET1.1Win2KWinXPWin2003VS.NET2002CE.NET4.0CE.NET4.1CE.NET4.2C#
Secret Key Encryption Demo
6 Jun 2013
Fernando E. Braz
This is an alternative for "Secret Key Encryption Demo"
.NET3.0VB9.0C#DevBeginnerIntermediateVB.NET.NET4cryptography
Encrypting Communication between C# and PHP
11 Oct 2011
Scott Clayton
Set up encrypted secure communication between C# and PHP using the AES and RSA algorithms.
C#.NETVisual-StudioDevPHPIntermediateAdvancedVisual-StudioVS2010Encryption
Off-The-Record (OTR) Security Protocol
29 Apr 2014
Don Fizachi
A C# implementation of the OTR protocol.
MonoC#Windows.NETDevLinuxIntermediate.NET.NET4.5
Encrypting Editor Notepad Replacement
28 Jul 2014
Frank T. Clark
A C# .NET 3.5 (Win7) Windows Forms Application with source code
C#DevIntermediateWindowsVisual-StudioWin7VS2010Encryption
.NET Encryption Simplified
29 Jan 2007
wumpus1
A simple, string-oriented class for symmetric encryption, asymmetric encryption, and hashing.
.NET1.0.NET1.1.NET2.0VS.NET2002VS.NET2003VS2005VBWindowsDevBeginner
Using RSA Public Key Encryption in a Shared Web Hosting Environment
19 Mar 2011
Paul Sanders (AlpineSoft)
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.
.NET1.1.NET2.0WinXPWin2003VistaIIS5.1IIS6VS.NET2003VS2005C#2.0
RSA Private Key Encryption
4 Feb 2012
Dudi Bedner
How to encrypt data using a private key in .NET.
C#2.0C#3.0.NETDevIntermediateC#
PGP Encryption with C#
6 Jan 2013
David Rogers Dev
Encrypting and Decrypting Files with GnuPG
C#.NETDevIntermediateEncryptionDecryption
Using Encrypted Files Without Decrypting To Disk
2 Sep 2014
Matthew Givens
Showing how to decrypt files in memory in order to maintain data security.
C#Windows.NETIntermediateVisual-StudioVS2010EncryptionFileStream
XCrypt - Encryption and decryption class wrapper
24 Jun 2013
Vasudevan Deepak Kumar
This is an alternative for "XCrypt - Encryption and decryption class wrapper".
.NET1.0Win2KC#DevIntermediateAdvancedWindows.NET
How To: Hash Data Using MD5 and SHA1
13 Aug 2009
Waleed Elkot
Sample application describing how to use the MD5 and SHA1 classes.
C#2.0C#3.0.NETDevIntermediateC#
Simple encrypting and decrypting data in C#
25 Dec 2003
DotNetThis
Well documented code showing how to do crypto in C# and the .NET framework.
.NET1.0.NET1.1C#WindowsVisual-StudioDevIntermediate.NET
A .NET Encryption Library
26 Jun 2010
Dr. Song Li
This article introduces a .NET encryption library and demonstrates how to use the library with a WPF application.
C#Windows.NETDevWPFIntermediate
RFC3394 Key-wrapping Algorithm in C#
31 Oct 2008
ladenedge
An implementation of the RFC3394 AES key-wrapping algorithm.
.NET2.0MonoC#2.0C#XML.NETDevIntermediateAdvancedC#
Encrypt/Decrypt Files in VB.NET (Using Rijndael)
4 Nov 2005
Thad Van den Bosch
How to encrypt and decrypt files using Rijndael.
.NET1.1VS.NET2003VBWindowsDevIntermediate.NETVisual-Studio
Public Key RSA Encryption in C# .NET
30 Jan 2007
Mathew John Schlabaugh
1024/2048 bit RSA cryptography in a "Notepad style" program.
.NET1.1WinXPWin2003VS.NET2003C#DevAdvancedWindows.NETVisual-Studio
C# AES 256 bits Encryption Library with Salt
9 May 2014
adriancs
A C# universal AES Encryption Library.
C#IntermediateEncryption
Simplified version of the DES (Data Encryption Standard) in C#
5 Jul 2010
Ismail Al-Jubabh
Implementing a simplified version of the DES block cipher algorithm – which was the standard encryption algorithm before the AES, using C# to encrypt and decrypt binary files.
.NET2.0C#2.0DevIntermediateC#.NETsecurity
A Tiger Hash Implementation for C#
10 Mar 2012
mastamac
A Tiger hash Implementation for C#, based on .NET's HashAlgorithm class.
.NET2.0C#.NETDevIntermediateAdvancedEncryptioncryptography
Exploiting MD5 collisions (in C#)
20 Sep 2005
ediazc
This article shows how the MD5 collisions can be used to tamper software distribution schemas.
.NET1.1VS.NET2003C#ASP.NETWindowsCEOArchitectDBADevQA
Password protecting IO streams
28 Aug 2006
Alex Perepletov
An article on protecting a stream with a password by means of symmetic encryption.
.NET2.0VS2005C#WindowsDevIntermediate.NETVisual-Studio
Simple String Encryption and Decryption with Source Code
21 Feb 2008
Lovely M
Sample program for simple encryption and decryption of strings
C#
Encrypt and Decrypt Text with a Specified Key
4 Mar 2013
Shubham Choudhary
This software allows you to encrypt and decrypt text with a specified key.
C#2.0Windows.NETIntermediateC#
Strong and Fast Data Encryption with the CAST-128 Algorithm
27 May 2006
Andrey Dryazgov
An effective implementation of the CAST-128 algorithm (ECB and CBC modes).
.NET1.1.NET2.0VS.NET2003VS2005C#VBWindowsDevIntermediate.NET
Cryptor - Encrypt Files With Rijndael 256 bit
20 Jan 2006
kasik
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.
.NET1.1VS.NET2003VBWindowsDevIntermediate.NETVisual-Studio
.NET cryptography library for files and strings
29 Dec 2005
HanreG
This is a VB.NET wrapper for the .NET framework cryptography classes (HashAlgorithm, SymmetricAlgorithm) for working with strings and files.
.NET1.1VS.NET2003VBWindowsDevIntermediate.NETVisual-Studio
XCrypt - encryption & decryption class wrapper
18 Aug 2003
pdwolf
1 alternative  
A generic encryption & decryption class wrapper for C#.
.NET1.0Win2KVS.NET2002C#DevIntermediateWindows.NETVisual-Studio
Fractal encryption algorithm
20 Jun 2012
Bruno Tabbia
Encription algorithm that uses mandelbrot fractal to expand the encryption key
C#AdvancedC#C#4.0Encryption
Using Encryption in .NET
26 Jun 2009
logicchild
An article that describes the beginning steps to encryption using the .NET Framework.
C#2.0C#3.0C#C#
Binary to Text Encode/Decode Class
9 Jun 2004
Frederico Daupias de Alcochete
A .NET class Library to handle the encoding/decoding of QuotedPrintable, UUEncode, Base64 and Yenc algorithms.
.NET1.1VS.NET2003VBWindowsDevIntermediate.NETVisual-Studio
How To Use Rijndael to Encrypt Any File Easily?
2 Jul 2009
qxcjust
Encrypt any file easily
C#
Good Bye MD5
20 Sep 2005
ediazc
The cracking of MD5 is making it useless?
Windows.NETVisual-StudioCEOArchitectDBADevQAIntermediate
Cryptography in .NET (part 1)
5 Mar 2003
Sameers.ME
Use the .NET Framework's Cryptography Classes to secure your data.
.NET1.0Win2KWinXPVBDevIntermediateWindows.NET
Don't touch my log, how to protect your XML data with Xml-DSig
1 Aug 2005
ediazc
Shows a simple class for digital signature generation and verificacion.
.NET1.1.NET2.0Win2KWinXPVS.NET2003VS2005C#XML.NETCFDev
An MD5 Function Compatible with PHP
14 Jul 2005
ediazc
Describes an implementation of a MD5 function compatible with the PHP function.
.NET1.1VS.NET2003C#ASP.NETWindowsArchitectDevPHPIntermediate.NET
P2P Secure File, Encrypt and Decrypt Any File with Password
5 Apr 2008
Atanu Maity
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.
.NET1.0.NET1.1.NET2.0Win2KWinXPWin2003Vista.NET3.0VB7.xVB8.0
Creating a Secure, Efficient Backup Client
19 Nov 2003
Steven Campbell
Describes some underlying concepts and techniques that are helpful when needing to copy data securely and efficiently.
.NET1.0.NET1.1C#WindowsVisual-StudioDevIntermediate.NET
Automated File Decryption Using GnuPG and C#
11 Dec 2007
Kurt Mang
How To: Automate decryption of PGP / GnuPG encrypted files.
Win2KWinXPC#2.0C#ASP.NETWindowsDevIntermediateC#Windows
Cryptographically Strong Random Password Generation
1 Nov 2005
Wil Peck
An article on creating a simple, but robust cryptographically strong password generator.
C#Windows.NETVisual-StudioDevIntermediate
Data Compression and Data Encryption
10 Aug 2006
mohamed.elbatah
Data Compression and Data Encryption
VS2005C#2.0Windows.NETDevAdvancedC#Visual-Studio
Encryption/Decryption with .NET
14 Mar 2002
Frank Fang
A .NET SymmetricAlgorithm security class wrapper for in memory encryption/decryption with a private key
.NET1.0VS.NET2002C#ASP.NETWindowsDevIntermediate.NETVisual-Studio
Secure Encryption For Data Storage with Key Re-use
22 Jul 2008
Tom Stone
Enhanced encryption algorthim for data storage (console app)
VC6VC7VC7.1VC8.0C++/CLICC++
Secret Key Encryption Demo
25 Jul 2008
CS Rocks
This application demonstrates how to perform secret encryption using VB.NET and the .NET Framework 3.0.
.NET3.0VB9.0DevIntermediateVB.NET
Learn the TripleDES encryption algorithm in a minute
24 Feb 2008
Imran A Momin
Triple Data Encryption Standard algorithms from which all TripleDES implementations must derive.
.NET2.0VB.NETDevIntermediate.NET
Encrypt and Decrypt Data Using a Symmetric (Rijndael) Key
23 Aug 2007
cute-solutions
Encrypt and decrypt simple strings using the Rijndael algorithm.
.NET2.0VS2005C#WindowsDevIntermediate.NETVisual-Studio
Implementing Caesar Cipher in VB.NET
3 Nov 2006
Deobrat Singh
This article implements Caesar Cipher (shift by 3) in VB.NET.
.NET2.0VS2005VBWindowsDevIntermediate.NETVisual-Studio
Deriving Encryption Keys From Passwords
25 Jul 2005
ediazc
Show how to generate and store your keys for cryptography in safe mode
C#Windows.NETVisual-StudioDevIntermediate
Encrypt and sign data using PKCS #12 Certificates
12 Jun 2005
Adnan Samuel
Encrypt and sign data using PKCS #12 certificates.
.NET1.1Win2KWinXPWin2003VS.NET2003VBCEOArchitectDBADev
Tiny Encryption Algorithm
18 Jul 2007
meibella
XTEA was designed by David Wheeler and Roger Needham of the Cambridge Computer Laboratory. This implementation is written in VB.NET, but the core algorithm is in C# (referred from http://www.codeproject.com/KB/windows/teaencryption.aspx).
.NET1.1VS.NET2003C#VBWindowsDevIntermediate.NETVisual-Studio
Experimental Crypt
30 Aug 2010
Jan Mojzis
Experimental crypt
C++C
All about Cryptography in .NET
21 Dec 2004
AtulMalhotra
Cryptography classes available in .NET.
.NET1.0.NET1.1Win2KWinXPWin2003IIS5IIS6C#ASP.NETVisual-Studio
A .NET MD5 Class Library
7 Mar 2006
Frazell
A MD5 class library for .NET supporting advanced features like random Salt values embedded in the MD5 hash.
.NET1.0.NET1.1C#WindowsDevIntermediate.NET
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.NET - Security 

A Stegano-Framework for .NET Developers
2 Aug 2006
Corinna John
From tutorial snippets to open source project
C#Windows.NETVisual-StudioDevIntermediate
Using a Smart Card Certificate with .NET Security in C#
5 Oct 2011
orouit
How to use smartcard certificates in your .NET application
C#.NETVisual-StudioIntermediateVisual-StudioVS2010
Licensing .NET components with a PKI Token (Gemalto .NET Card) demystified
25 Oct 2011
orouit
This article demonstrates how to write a licensing provider for .NET licensing that gets licenses from a Gemalto .NET Card V2.
.NET2.0VS2008C#DevIntermediate.NETVisual-Studio
Steganography 16 - Hiding additional files in a ZIP archive
16 Apr 2006
Corinna John
How to zip and unzip files, avoiding the central directory.
.NET2.0VS2005C#WindowsDevBeginner.NETVisual-Studio
Copy Protection for Windows Applications
7 Sep 2009
Foolomon
Describes the implementation of a key registration, installation, and validation methodology for Windows applications.
C++Windows.NETArchitectDevCOMCOM+IntermediateAdvanced
Salted Password Hashing - Doing it Right
23 Jan 2014
adriancs, Taylor Hornby
Securing Password by Hashing with Salt
securityHashingpassword
Claims-Based Authentication and Authorization
12 Sep 2013
David Rogers Dev
Authentication and Authorisation with MembershipReboot and Thinktecture.IdentityModel.45
C#ASP.NET.NETDevIntermediate.NET.NET4.5
Copy Protection for Windows Applications (Part 4)
21 Sep 2009
Foolomon
Describes the implementation of a key registration, installation, and validation methodology for Windows applications
C++C#Windows.NETArchitectDevCOMCOM+IntermediateAdvanced
An Anti-Reverse Engineering Guide
9 Nov 2008
Joshua Tully
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.
VC6VC7VC7.1VC8.0WinXPWin2003VistaVS.NET2003VS2005VS2008
Encrypted TCP Tunneling
5 Sep 2013
Graeme Douglas
Program for providing an encrypted TCP tunnel.
VS2005C++WindowsVisual-StudioDevIntermediateVisual-Studio
Steganography 15 - Hiding Digital Data in Music on Audio Cassettes
4 Jun 2005
Corinna John
How to hide data of any kind inside a sound, and keep it alive on an analog medium.
.NET2.0VS2005C#WindowsDevBeginner.NETVisual-Studio
Gnu Privacy Guard (GPG/PGP) for .NET [v1.0]
18 Sep 2003
Emmanuel Kartmann
This article provides a C# wrapper class (GnuPGWrapper) that will enable use of GnuPG (the OpenPGP Internet encryption standard) within a .NET application.
.NET1.0Win2KWinXPC#Visual-StudioDevAdvancedWindows.NET
Steganography 13 - Hiding Binary Data in HTML Documents
13 Mar 2008
Corinna John
Some ideas on how to hide binary data in text documents
.NET2.0VS2005C#WindowsDevBeginner.NETVisual-Studio
Hooking the native API and controlling process creation on a system-wide basis
18 Oct 2005
Anton Bassov
How to hook the native API and control process creation on a system-wide basis.
VC6CWindowsVisual-StudioDevAdvancedC++
Steganography V - Hiding Messages in MIDI Songs
5 Aug 2004
Corinna John
An article about hiding bytes in the Program Change events of a MIDI file
.NET1.0.NET1.1VS.NET2002C#WindowsDevIntermediate.NETVisual-Studio
SharpPrivacy - OpenPGP for C#
7 Jun 2003
gek_at
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.
.NET1.0.NET1.1C#WindowsVisual-StudioDevIntermediate.NET
Global System Hooks in .NET
9 Jan 2005
Michael Kennedy
A class library for using *global* system hooks in .NET.
VC7.NET1.0.NET1.1Win2KWinXPWin2003VS.NET2003C++C#Dev
Digital Certificate Creator Tool
31 Mar 2013
anoopk01
This is a custom developed tool for generating a digital certificate.
.NET3.5C#WindowsIntermediate.NET
Steganography IV - Reading and Writing AVI files
19 May 2004
Corinna John
An article about hiding bytes in the bitmap frames of uncompressed AVI files.
.NET1.0.NET1.1VS.NET2002C#WindowsDevIntermediate.NETVisual-Studio
Understanding .NET Code Access Security
14 Jan 2004
UB
A full length article on .NET Code Access Security
Win2KWinXPWin2003C#.NETVisual-StudioDevBeginnerWindows
Strong Names Explained
25 Nov 2004
Jan Seda (Skilldrive.com)
.NET Strong Name technology explained
.NET1.0.NET1.1VS.NET2003C#WindowsDevIntermediate.NETVisual-Studio
Secure Coding Technique: A Better C# Password Dialog Box
6 Aug 2003
Dana Epp
An article demonstrating a better Password Dialog box in C#
.NET1.0Win2KWinXPWin2003VS.NET2002C#DevIntermediateWindows.NET
Basics of Signing and Verifying code
22 Feb 2012
Sergey Chepurin
How to sign code with digital signatures and associating them with files
C++WindowsIntermediate
Anti-Reflector .NET Code Protection
26 Oct 2013
Igor Ladnik
Article presents a technique allowing developers to protect their .NET code from reverse engineering by reflection of executable files
C++C#COMIntermediate.NET.NET4.5
Copy Protection for Windows Applications (Part 2)
10 Sep 2009
Foolomon
Describes the implementation of a key registration, installation, and validation methodology for Windows applications.
C++WindowsArchitectDevCOMCOM+IntermediateAdvanced
Building Your Own Security Application with the Gemalto .NET Smart Card V2
9 Oct 2011
orouit
How to use a Gemalto .NET V2 smartcard to create security applications in .NET
.NET2.0VS2008C#.NETAdvanced.NETVisual-Studio
How to make keyloggers life difficult
20 Jan 2013
M. Hudak
This secure textbox deceptive keyloggers
C#Windows.NETDevWebFormsBeginnerkeyloggerpassword
Steganography II - multiple key and carrier files
3 Apr 2004
Corinna John
An article about spreading hidden data over many images.
.NET1.0.NET1.1VS.NET2002C#WindowsDevIntermediate.NETVisual-Studio
Insight into Security Model using Principal and Identity Objects in .NET
9 Oct 2003
* Sandeep Alur
This article introduces the concept behind Principal and Indentity objects in .NET and proposes a security model adopting these objects in a .NET application.
.NET1.0Win2KWinXPVS.NET2002VBDevIntermediateWindows.NETVisual-Studio
Simple Password Manager Using System.Security
29 Sep 2006
Stefan Prodan
Password Manager is a System.Security usage example using SecureString and SymmetricAlgorithms.
.NET2.0Win2KWinXPWin2003VS2005C#2.0DevIntermediateC#Windows
Steganography 12 - Regions with different data density
12 Jul 2006
Corinna John
Define regions inside an image to keep smooth colours free from hidden data.
.NET1.0.NET1.1.NET2.0VS.NET2002VS.NET2003VS2005C#WindowsGDI+Dev
Steganography 11- Indexed Images and their Palettes
25 Jun 2004
Corinna John
Hiding data of any kind in indexed Bitmaps like PNG and GIF.
.NET1.0VS.NET2002C#WindowsGDI+DevBeginner.NETVisual-Studio
How to Programmatically add IP Addresses to IIS's Deny Access List using C# and WMI
31 Jul 2003
Scott Burgett
An article that shows the basic steps to programmatically adding an IP address to the IIS deny access list.
.NET1.1Win2KWinXPC#Visual-StudioDevBeginnerWindows.NET
Generic SymmetricAlgorithm Helper
15 Nov 2007
Tony Selke
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.)
.NET2.0C#2.0WindowsVisual-StudioDevIntermediateC#.NET
Introduction Into Windows Anti-Debugging
18 Sep 2008
Joshua Tully
A brief introduction into Windows anti-debugging techniques.
VC6VC7VC7.1VC8.0Win2KWinXPWin2003VistaVS.NET2002VS.NET2003
Secure Password Authentication Explained Simply
2 Apr 2014
Alaric Dailey
Simple code and explanations to enable secure password authentication.
C#.NETDevADO.NETIntermediate
Using the G711 standard
28 Jul 2006
Marc Sweetgall
Implementing the G711 µ-law and a-law codecs in C#.
.NET2.0VS2005C#WindowsDevIntermediate.NETVisual-Studio
Copy Protection for Windows Applications (Part 3)
16 Sep 2009
Foolomon
Describes the implementation of a key registration, installation, and validation methodology for Windows applications
C++C#Windows.NETArchitectDevCOMCOM+IntermediateAdvanced
File Encryption/Decryption with Hash Verification in C#
22 Oct 2004
Nathan Blomquist
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.
.NET1.1Win2KWinXPVS.NET2003C#DevIntermediateWindows.NETVisual-Studio
Client/Server Encryption plus extras
19 Aug 2005
Domenic
Shows how to implement an RSA encryption algorithm on a server and client environement, even through a web browser!
.NET1.1Win2KWinXPWin2003C#ASP.NETVisual-StudioDevIntermediateWindows
Enigma emulator in C#
29 Apr 2011
adi_clepcea
This article shows the inner workings of the German Enigma machine used during the WWII, translated to C#.
.NET1.1Win2KWinXPVS.NET2003C#DevIntermediateWindows.NETVisual-Studio
Public/Private Key Encrypted Messenger
17 Sep 2007
Michael Demeersseman
An article about creating a public/private key encrypted internet messenger
.NET2.0C#WindowsVisual-StudioDevIntermediate.NET
Implementing Protected Configuration With Windows Apps
29 Aug 2006
Hameer Saleem
How to use the ProtectedConfiguration API to protect sensitive information in your application’s configuration file.
.NET2.0Win2KVS2005C#XMLDevBeginnerWindows.NETVisual-Studio
CCryptoTokenizer
13 Nov 2003
raymond.fung, Norman Fung
CCryptoTokenizer
.NET1.0VS.NET2002C#WindowsDevIntermediate.NETVisual-Studio
Protect your IM (Instant Messenger) conversations by encrypting them
20 Oct 2005
Silviu Gologan
Learn how to encrypt IM (Instant Messenger) conversations.
.NET2.0WinXPVS2005C#CEODevIntermediateWindows.NETVisual-Studio
Phishing applications: Security threats regarding the SetParent function
10 Nov 2011
Yonghwi Kwon
This article explains how the SetParent function can be used to deceive users and incurs a catastrophe. Also, it suggests protection techniques against attacks presented here.
C++DevIntermediate
Steganography III - Change only one Bit per Pixel
3 Apr 2004
Corinna John
An article about hiding each byte of a message bit-by-bit in eight pixels.
.NET1.0.NET1.1VS.NET2002C#WindowsDevIntermediate.NETVisual-Studio
Using CAPICOM in .NET for Digital Signatures with ASCII/UTF8 Content
26 Feb 2005
Fatih KIHTIR
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).
.NET1.1VS.NET2003C#WindowsDevMSILAdvanced.NETVisual-Studio
Get info about local digital certificates with WSE 2.0 and .NET
27 Feb 2007
Orka
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.
.NET1.1VS.NET2003VB7.xWindowsDevIntermediateVB.NETVisual-Studio
Steganography 18 - GPS Tracks and Waypoints
1 Aug 2009
Corinna John
Encode a message as waypoints in a GPX file.
.NET2.0C#2.0XMLDevBeginnerIntermediateC#.NET
Steganography VI - Hiding messages in .NET Assemblies
22 Nov 2003
Corinna John
An article about hiding instructions at the end of methods in an .NET Assembly
.NET1.0VS.NET2002C#WindowsDevIntermediate.NETVisual-Studio
Strategy to distribute secure database connection strings in an enterprise environment
29 Nov 2003
Sriram Chitturi
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.
.NET1.0.NET1.1VS.NET2003C++C#WindowsMFCDevIntermediate.NET
Porting Java Public Key Hash to C# .NET
26 Oct 2004
Shaheryar Ch.
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).
Win2KWinXPWin2003C#Java SE.NETVisual-StudioDevIntermediateWindows
A C# component to encode and decode yEnc data
12 Apr 2004
Steven Campbell
A fully tested component capable of encoding and decoding yEnc data.
.NET1.0.NET1.1VS.NET2003CE.NET4.0CE.NET4.1CE.NET4.2C#WindowsDevIntermediate
Cryptography in .NET
9 Oct 2002
Manuel Permuy
Cryptography in .NET using the Windows PKI
.NET1.0VS.NET2002C#WindowsDevIntermediate.NETVisual-Studio
Implementing Application Security with Client Application Services in VS2008
17 Jul 2008
Nowak Alexander
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#3.0VB9.0.NET3.5C#VB.NETDevIntermediateC#VB
Common application data, virtualization, and access control lists
24 Jan 2008
Luigi Grilli, Michela Carriero - Lyra
Vista: what to do when storing common data is needed?
Win2KWinXPWin2003VistaWindowsDBADevIntermediateWindowsSysAdmin
.NET Code Protection Solutions Review
4 Sep 2013
michaelas
The article discusses .NET code protection methods.
C++Windows.NETVisual-StudioDevIntermediate
Steganography X - Tuning the Image Processing
29 Nov 2004
Corinna John
Unsafe pixel modification and bitmaps from the clipboard.
.NET1.0.NET1.1VS.NET2002C#WindowsDevIntermediate.NETVisual-Studio
Free PHP Encoder Application
4 Aug 2009
Sần Hải Quang
A free PHP encoder application.
C#
WinForms - Using a custom principal with AspNetDb
1 Jun 2010
Dylan Morley
Describes how to use a custom principal implementation with the AspNetDb security database in a WinForms application.
C#.NETDevIntermediatesecurityWinForm
Application Security in n-tier Application on Windows Server
13 Jul 2011
openpage
Security attacks risk are minimised by careful planning of application design. If the application is distributed in nature, the challenges becomes manyfold. This article will try to give one way of doing so.
WindowssecurityServer
How to Generate (and Validate) CD-Keys for your Software
7 Aug 2012
dawmail333
An example of how to implement and validate non-personal CD-Keys (ideal for distribution on the back of CD cases)
VB7.xVB8.0VB9.0VB6VB.NETDevDesignIntermediateVB
Symmetric Cryptography and Hashing in C#
12 Aug 2004
Chidi Ezeukwu
An article on symmetric cryptography and hashing.
.NET1.0Win2KWinXPWin2003VS.NET2002C#DevIntermediateWindows.NET
Tamper-proof and Obfuscate your Configuration Files
5 Jan 2009
Sunny Ahuwanya
How to prevent your configuration sections from unauthorized modification (includes a nifty configuration file editor)
C#.NETDevAdvanced
A small and elegant bruteforcing class
14 Dec 2006
Filip Waeytens
A class that returns all possible combinations of a given subset, without using recursion.
.NET2.0WinXPVS2005C#DevIntermediateWindows.NETVisual-Studio
Cryptography in C#
14 Apr 2004
Alex Getman
An article on cryptography in C#
.NET1.1VS.NET2003C#WindowsDevIntermediate.NETVisual-Studio
Attaching a digital certificate (public key) to an HTTPS request
6 Aug 2008
Rehan Ahmad Abbasi
Posting data to HTTPS (a secure connection) URL from a Windows application (.NET) by attaching a digital certificate and getting the response back.
.NET2.0C#2.0C#Windows.NETDevIntermediateC#.NET
Protecting Your Software Using Simple Serial Number/Activation Key Pair
12 Aug 2008
Yasser M. Jaffal
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.
.NET2.0Win2KWinXPWin2003VistaVS2005.NET3.0VB7.xVB8.0VB9.0
Modifying ACEs on file and directory DACLs, using the Win32 API Security assembly
15 Nov 2006
rmortega77
Sample code for setting ACE on file and directory DACLs just as the OS does.
.NET1.1VS.NET2003C#WindowsDevIntermediate.NETVisual-Studio
Poly-Engine Crypt String
11 Jul 2004
Marcello Cantelmo
Hide (crypt) string with a polymorphic dynamic code ("game" with the class Stack!).
.NET1.0.NET1.1VS.NET2002VS.NET2003VBWindowsDevAdvanced.NETVisual-Studio
Crypto & Hashing Wrapper Classes
22 Mar 2004
Brad Vincent
Simple class wrappers that encapsulate all the built in .NET functionality of both the symmetric encryption classes and the hashing classes.
.NET1.1C#WindowsVisual-StudioDevIntermediate.NET
Applied cryptography Part 2: a tool to encrypt files on your HDD
4 Jul 2004
Marcin Cuprjak
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.
.NET1.1VS.NET2003C#WindowsDevIntermediate.NETVisual-Studio
Steganography VII - Hiding more Text in .NET Assemblies
9 Apr 2004
Corinna John
Another article about hiding bytes at the end of methods in a .NET Assembly.
.NET1.0VS.NET2002C#WindowsDevAdvanced.NETVisual-Studio
The .NET Framework Security Model
28 Apr 2006
Alex Getman
An article on the .NET framework security model.
C#Windows.NETVisual-StudioDevIntermediate
Crack the Modified Caesar Cipher with Relative Frequency Letters
29 May 2005
Dragon Slayer
Crack the Modified Caesar Cipher using only relative frequency English letters.
.NET1.1VS.NET2003C#WindowsDevIntermediate.NETVisual-Studio
Digital Signatures
12 Sep 2008
nimeshmca
Custom digital signatures using iTextSharp
C#2.0VS2008C#Windows.NETVisual-StudioDevIntermediateC#Visual-Studio
Developing a Secure Solution using Commerce Server 2002 and .NET
21 Apr 2004
Khalid A1
Developing a secure solution using Commerce Server 2002 and .NET.
.NET1.0C#WindowsVisual-StudioDevBeginner.NET
Watch Dog
5 Sep 2007
Babak Ansari
Execute applications with a Windows Service and ensure its existance.
.NET1.1VS.NET2003C#WindowsDevIntermediate.NETVisual-Studio
Encrypting windows application connection strings
25 Apr 2007
Daniel Kuettel
This article shows a simply method of encrypting connection strings for windows applications
.NET2.0SQL2000SQL-server-2005VS2005C#2.0WindowsDBADevIntermediateC#
Find LastLogon Across All Windows Domain Controllers
14 Jun 2007
Dwight Johnson
Use the .Net Framework to find the lastLogon for every user across all domain controllers
C#Windows.NETVisual-StudioDevIntermediate
C# WEPkey generator
25 Jul 2004
Mark van den Broek
A Wepkey generator for protecting your wireless LAN.
.NET1.0.NET1.1.NET2.0VS.NET2002VS.NET2003VS2005C#WindowsDevIntermediate
USB & CD/DVD Blocking: One Way to Keep Data Free of Theft
4 May 2011
Günter Bergmann
An example of blocking access to USB Memory and CD
C++Dev
Using authentication certificates to connect to web services with Windows form applications
8 May 2007
--==## Andy74 ##==--
How to use a certification to connect to an SSL channel and use a web service
.NET2.0VS2005C#WindowsIISDevIntermediate.NETVisual-Studio
Authorization Manager Access Component
11 Mar 2005
jqd2001
.NET Authorization using Windows Identity, X509 Certificate or ASP.NET Forms
.NET1.1Win2003VS.NET2003C#VBASP.NETDevIntermediateWindows.NET
Applied Cryptography Part 1: Simple tool to enrcypt/decrypt e-mail messages
30 Jun 2004
Marcin Cuprjak
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.
.NET1.1VS.NET2003C#WindowsDevIntermediate.NETVisual-Studio
Code Access Security from the perspective of the Developer and Administrator
18 Feb 2004
benjaminwootton
Looking at Code Access Security From the Perspective of the Developer and Administrator
.NET1.0.NET1.1WindowsDevIntermediate.NET
PassWDCipher
5 Apr 2005
Thoughthopper
An article on password protection for applications that need them.
.NET1.1VS.NET2003C#WindowsDevIntermediate.NETVisual-Studio
Don’t rely on obfuscation
21 Feb 2008
Fady Anwar
An article demonstrating why you should not rely on obfuscation to protect your .NET applications.
C#2.0C#3.0C#.NETDevMSILAdvancedC#
Authentication to a phpbb based forum using C#
5 Apr 2008
gyllbert
Authentication to a phpbb based forum using C#.
Win2KWinXPWin2003VistaC#2.0C#3.0DevPHPIntermediateC#
HTTPs using BizTalk 2009 HTTP adapter on Windows 2008 R2
10 Jul 2010
Ahmed Kahwaji
Use HTTPs in BizTalk 2009 on Windows 2008 R2
WindowsDevIntermediateWindowsWin2008-R2
Working with TrustedBSD in Mac OS X
7 Jul 2013
Alexander Stavonin
Little explanation of TrustedBSD framework usage on Mac OS X
CAdvanced
Secutirty at your Hands: Encryption of Configuration file in Whidbey
4 Jul 2005
Nishith Pathak
Encryption of configuration file in Whidbey.
Windows.NETVisual-StudioDevIntermediate
Using CryptoStream in C#
19 Mar 2004
WillemM
This article explains how to use CryptoStream for simple on the fly cryptography.
Win2KWinXPWin2003C#.NETVisual-StudioDevIntermediateWindows
Securing ADO.NET Connection Strings
25 Aug 2006
Levan Midodashvili
Some possible ways to encrypt and store connection strings in an ADO.NET application.
.NET2.0WinXPVS2005VBDevIntermediateWindows.NETVisual-Studio
Securing .NET Assemblies
21 Oct 2005
AtulMalhotra
Making .NET assemblies secure for an enterprise.
.NET1.0.NET1.1Win2KWinXPWin2003VS.NET2002VS.NET2003C#DevIntermediate
Combining Symmetric and Asymmetric Encryption
25 Oct 2004
larryjf
Describes symmetric and asymmetric encryption, then shows how to combine them.
VBWindows.NETVisual-StudioArchitectDBADevIntermediate
Securing Web Accounts
5 Oct 2003
Vasudevan Deepak Kumar
Here we would briefly see how to keep accounts (signups) in online websites in a more secure way.
.NET1.0.NET1.1Win2KWinXPWin2003C#VBASPASP.NETVisual-Studio
Ensuring Strong Passwords
10 Oct 2003
Vasudevan Deepak Kumar
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.
.NET1.1Win2KWinXPWin2003C#VBASP.NETVisual-StudioDevIntermediate
Exploring Security in .NET - Part I
7 Jul 2005
razi bin rais
Exploring security features in .NET.
C#VBWindows.NETVisual-StudioDevIntermediate
Simple Password Manager with Google API validation
15 Apr 2013
Vasudevan Deepak Kumar
This is an alternative for "Simple Password Manager Using System.Security"
WinXPWin2003DevBeginnerIntermediateC#Windows.NETVisual-StudioC#4.0
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General 

A C++ SHA1 and MD5 Implementation with CryptoAPI
20 Sep 2012
Marius Bancila
This article proposes a C++ implementation for computing hashes (SHA1, MD5, MD4 and MD2) on Windows with the Microsoft CryptoAPI library.
C++WindowsDevIntermediate
RSA Library with Private Key Encryption in C#
15 Jul 2012
Arpan Jati
RSA encryption library with full OAEP padding and private key encryption support.
C#.NETArchitectIntermediateAdvancedVisual-StudioVS2010cryptography
Reverse Engineering with OllyDbg
28 Oct 2014
Ajay K. Yadav
The objective of writing this paper is to manifest, how to crack an executable without peeping its source code by exercising OllyDbg tool.
security
Checksum Verification
23 Sep 2011
smoore4
Loop through all files in a folder/subfolders and run a checksum that is stored in a database. E-mail descrepancies and results.
C#ASP.NETSQL.NETDBAQAIntermediateMySQLSysAdmin
Bypassing Windows XP Logon Password using bootkit
5 May 2010
fhrdina
An article on Windows XP logon process modification
CWindowsASMBeginnerVirtualization
RSA License Protection
30 May 2011
Simon Bridge
Implementing License Protection using RSA
C#Windows.NETDevIntermediateWinForm
A Virtual ISO7816 SmartCard
10 Apr 2014
Fabio Ottavi
An implementatio of an ISO 7816 Virtual SmartCard
C#WindowsDevIntermediate
Binary Cracking & Byte Patching with IDA Pro
28 Oct 2014
Ajay K. Yadav
Binary Cracking & Byte Patching with IDA Pro
C++
How to Read in Memory Code of .NET Application Protected with Anti-Reflector
5 Aug 2014
Igor Ladnik
Technique to obtain in memory code of running .NET application (even wrapped into unmanaged code for binary files anti-reflection) is presented and implemented with workable sample
C++C#Windows.NETCOMIntermediate
Simple SST Unhooker
17 Mar 2010
Victor A. Milokum, Apriorit Inc
This article includes a description of a simple unhooker that restores original SST hooked by unknown rootkits, which hide some services and processes.
C++WindowsVisual-StudioArchitectDevIntermediateAdvanced
Create and Share (with a client app) a Random Encryption Key
5 Oct 2010
John Simmons / outlaw programmer
One way to create a completely random encryption key, and sharing it with a client application
.NET3.5C#ASP.NETWindows.NETDevIntermediate.NETEncryptionAlgorithms
Binary Obfuscation
25 Dec 2014
0x7c00
How to add obfuscation at binary level to protect your technology
CWindowsAdvancedVS2013
Halibut: a secure communication stack for .NET/Mono
1 Mar 2013
Paul Stovell
Secure alternative to WCF. JSON-RPC meets SSL meets .NET and Mono.
MonoC#.NETIntermediate.NETsecurity.NET4
Security: It’s Getting Worse
5 Feb 2015
Espen Harlinn
Cyber warfare: It’s a brave new world
C#ASP.NETCEOArchitectDevDesignVisual-StudioSysAdminVS2010
OTP (One Time Password) Demystified
26 May 2013
orouit
This article shows how an OTP generator works.
C#Intermediatetimepassword
Implementation of the Licensing System for a Software Product
5 Aug 2010
Apriorit Inc, Sergii Bratus
This article is devoted to the development of the key licensing system for the applications.
C++
Improving the Performance of Serial Ports Using C#
17 Sep 2010
Doug Richards
This article describes a number of simple test programs designed to demonstrate performance issues with the .NET serial port interface and what might be done to improve things.
CC#.NETDevIntermediate
Encrypted code compiled at runtime
28 Jan 2013
Bruno Tabbia
Encrypt your C# classes and compile them during run-time (hiding their code in the exe file).
C#WindowsWin32Win64DevAdvancedC#C#4.0EncryptionDecryption
Secure String Handling in Windows Applications
9 Mar 2014
R.selvam
This article explains about Strsafe, Secured C run time library (CRT) and safe STL functions.
WinXPVistaC++WindowsWin32STLDevIntermediateWindowsWin7
Crypt Library Demo
28 Jul 2014
Mihai MOGA
Learn the basics of Microsoft CryptoAPI Library
C++Windows.NETWin32HTMLBeginnerVisual-StudioVS2010
Secure Function Pointer and Callbacks in Windows Programming
4 May 2011
R.selvam
This article explains the usage of function pointer and callback in Windows application programming Interface (API).
WinXPVistaC++WindowsSTLDevIntermediateWindowsWin7
Protection & Decompiling Software - Start Point Info
1 Nov 2014
NewPast
Software protection & Decompiling software as a new cracking method
CC#VBprotectedHackingSecureDecompiling
Huo Encryption / Decryption Assembly Program
20 Sep 2012
Palavos
x8086 assembly program that encrypts/decrypts text input from the keyboard by using basic assembly language ideas
WindowsASMIntermediateDOS
NTLM Hash Generator
13 Feb 2012
Mustafa Chelik
Calculates NTLM hash of given string in pure C/C++
C++CCObjective-C
File Encryption/Decryption Tutorial in C++
23 Feb 2015
giorgi.m
Tutorial on how to encrypt/decrypt files using C++
C++WindowsIntermediateVS2013
Swanky Encryption/Decryption in C#
26 Jan 2015
1337Architect
Handy classes to use the .NET Encryption/Decryption
C#.NETVisual-StudioDevIntermediateEncryptionDecryptionrecipessecuritysize
How to Access and Encrypt Your Files via Windows Forms
23 Apr 2010
logicchild
An article that demonstrates how to encrypt your directory files
Win2003VistaVS2005C#2.0C#3.0VS2008C#WindowsVisual-StudioDev
PL/I Tutorial – An example of basic Encryption
26 Nov 2012
Palavos
A tutorial of PL/I basic concepts based on an encryption example
DevBeginnerEncryptionDecryptionIBM
K3YK4Y String Hasher
18 Aug 2008
trecool999
Advanced/Not-So Advanced string and password hash.
VB7.xVB8.0VB9.0VB6.NETVisual-StudioDevBeginnerIntermediateVB
Controlling Demo-Version Crack and Software Piracy Issue for Beginners - Part 1
20 Aug 2011
sk saini
This article has been written for small individual developers who really face demo crack problem before launching their application.
BeginnerAll-Topics
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Steganography 

Steganography programming with Visual Studio 2012 (Nostega paradigm)‏
20 Sep 2012
Palavos
A paradigm of Noiseless Steganography for secretely transmitting messages via Excel graphs.
WinXPVistaC#WindowsWin32Win64Visual-StudioIntermediateWindowsWin7
Steganography - Hiding data in plain sight
7 Apr 2012
Phoenix Roberts
An introduction to Steganography using bitmap files.
C#Windows.NETDevIntermediate


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