Open Source C# Cryptography Software

Shadowsocks for Windows is a free and open source, high-performance secured socks5 proxy designed to protect your internet traffic. It allows you to surf the web privately and securely, and offers a number of useful features such as HTTP proxy support, system proxy configuration, server auto switching and plugin support. Shadowsocks is incredibly fast, as it utilizes bleeding edge techniques with Asynchronous I/O and event-driven programming. It also has a flexible industry-level encryption algorithm that supports custom algorithms. Shadowsocks for Windows requires a Microsoft .NET Framework 4.7.2 or higher, as well as Microsoft Visual C++ 2015 Redistributable (x86).

Steghide UI is a nifty GUI written by Drunken.Canadian for the console application steghide as the name suggests. It allows the user to everything steghide can but with a nice user friendly GUI. Now, steghide UI has a new options panel.

Project has been moved to GitHub: https://github.com/colejohnson66/iDecryptIt iDecryptIt is a tool to decrypt the root filesystem of an IPSW.

ActiveLock is an open-source copy protection, software licensing framework for all development enviroments supporting COM+ architecture. Core DLL available in VB2008 and VB6. Samples in C++, C#, Excel/Access VBA and keygens in PHP, ASP.NET available.

A pronounceable password generator plugin for KeePass. NOTE: This project has been discontinued. It hasn't been worth it to maintain the project for a while now, so no more updates will be made to the plugin. The algorithm this plugin uses is based off FIPS-181 which was withdrawn by NIST a while back. The proliferation of password managers that seamlessly run on multiple platforms (some of which are free) has also removed almost all advantages of using randomly generated pronounceable passwords. If you have a use case for this plugin, reconsider it. If you still think using randomly generated pronounceable passwords are worth it for your use case, reconsider it some more.

This is mainly just an interface tweak. Added function of mac address changer. If you have problems getting the mac changer to work, try using a mac address that starts with something other than "00" in the first octet. If you are intersted in learning about network security please check out my Juniper Networks training course at: http://academy.gns3.com/courses/juniper-jncia-intro-to-junos

To build, the AWS Encryption SDK requires the most up-to-date version of dafny on your PATH. In addition, this project uses the parallel verification tasks provided by the dafny.msbuild MSBuild plugin, and thus requires dotnet 3.0. The tests currently require native implementations of cryptographic primitives and other methods, so they can only be run when embedding this library into one of the compilation target languages supported by Dafny. This repo uses Duvet to directly document the specification alongside this implementation. Refer to the specification for how to install duvet in order to generate reports. By default duvet_report will extract the spec only if it cannot find the compliance directory in the specification repo, but will re-use a previous extraction if it exists.

WebLocker is a free software that allows you to block annoying ads, block domains known to spread malware, block adult websites (Pornography), block social networks, block online gambling, stop DNS leaking and more features. Available for Windows: XP, 7, 8, 8.1 and 10. We hope you enjoy using WebLocker! TheYousSoft Team

Simple way to encode files and images in base64... Tutorial: http://www.youtube.com/watch?v=G1cQXnzOwcs

An open source implementation of the FIDO2 protocol to support passwordless strong authentication using public-key cryptography. Supports registration, authentication (all platforms), and transaction authorization (for native Android apps).

Finally a usefull, free and opensource graphical tool to handle memory (synchronous) smartcards like Siemens SLE4428 and SLE4442 and T0-T1 asynchronous cards. Application is again beta but it works and you can execute Apdu commands in few seconds!

The wolfSSL embedded SSL library (formerly CyaSSL) is a lightweight, portable, C-language-based SSL/TLS library targeted at IoT, embedded, and RTOS environments primarily because of its size, speed, and feature set. It works seamlessly in desktop, enterprise, and cloud environments as well. wolfSSL supports industry standards up to the current TLS 1.2 and DTLS 1.2, is up to 20 times smaller than OpenSSL, offers a simple API, an OpenSSL compatibility layer, OCSP and CRL support, is backed by the robust wolfCrypt cryptography library, and much more. wolfSSL relies on the FIPS 140-2 validated wolfCrypt library for all cryptographic functionality. Visit http://wolfssl.com/wolfSSL/fips.html for more info!

A simple file checksum utility for Microsoft Windows.

Basic text file encryption & decryption. Can encrypt text files with or without formatting. CryptKeeper is the upgraded version of EnCREEPtor.

Paranoia Text Encryption mantiene SMS, correos, mensajes de redes sociales, notas y cualquier otro texto a salvo de ladrones, hackers y fisgones. Basta con pegar texto copiado desde cualquier aplicación, o guardarlo en un archivo para usarlo más adelante. Paranoia Text Encryption keeps SMS, mails, messages from social networks, notes and any other text safe from thieves, hackers and snoopers. Simply paste text copied from any application, or save it in a file, use it more later

LSB Steganography tool which provides hide ASCII infomation within 24-bit Bitmap images

Formerly known as DotNetOpenId, this library brings easy and flexible OpenID, OAuth and InfoCard to the .NET platform. Official web site is at http://www.dotnetopenauth.net/, which includes source code downloads.

CryptAPI is a C# library that contains unimplemented algorithms in the .NET framework (NT, NTLM, BlowFish, DES and MD5) linking and emulating the crypt() unix function re-programmed in C#. The main purpose is to provide backward compatiblity.

RFC 3161 time-stamping .NET client library and application. Please visit project website - https://github.com/disig/TimeStampClient - for more information.

Dear Diary is a password-protected text editor with features similar to WordPad that automatically encrypts the text before writing to disk. You can format text with different colors, fonts and font sizes as well as insert images into your documents.

Program to quickly and easily encrypt or decrypt files or directories using Encrypting File System (EFS) as well as add and remove domain user EFS permissions to a file. There is also a button to view the info on an encrypted file as well as for backing up a users EFS PFX certificate.

This project provides stable releases of Pkcs11Interop project hosted on github. Please visit project website - www.pkcs11interop.net - for more information.

DrCrypt, based on basic xor(exclusive or) encryption which is designed to be fast and reliable. Also DrCrypt supports 3 platform.(Java, .NET, Win32)

The PKI Framework (PKIF) is a cross-platform library for performing PKIX-compliant certificate processing. It includes support for SCVP, OCSP, CMS and Timestamps. It uses Windows CAPI, NSS or Crypto++ for cryptographic services and hardware support.

This substitution cipher toolkit enables you to en- and decrypt texts with substitution cipher, to gather language statistics of a specific language and to crack encrypted texts both manually and automatically. All functions can be accessed via an easy-to-use graphical user interface.