Open Source C# Cryptography Software for Linux

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).

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

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!

The Arcanum Editor is a small but powerful tool to encrypt and decrypt messages. The program also comes with it's own format CTXT. This format is based on XML and allows you to save texts with the Advanced Encryption Standard.

OW.NET -- 1-Wire API port from Java (and J#) to C#. Use the Dallas 1-Wire and iButton chips with standard C# using a serial adapter (also CF.net) or the TMEX drivers on the Windows platform. No J# distribution installation required.

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

yaSSL, or yet another SSL, is an embedded ssl library for programmers building security functionality into their applications and devices. yaSSL is highly portable, and runs on standard as well as embedded platforms(QNX, ThreadX, VxWorks, Tron) yaSSL is still available but no longer being developed. Current development on the same project continues under wolfSSL. Visit yaSSL Home above for the latest stable release.

A library written in Visual C# for encrypting a text message into an image file, and decrypting an image file to get the text message using Rijndael Algorithm, RSA Algorithm, and LSB Substitution Algorithm.

HashSum is a .NET port from GNU's md5sum and sha1sum. It supports: hash algorithm selection between MD5 and SHA1 (more could be added later) and compatibility between HashSum and GNU's checksum file format

A client for the passcracking.com online database ob MD5 and SHA1 Hashes. It allows to generate MD5 and SHA1-Hashes from passwords and querying the database to get the password for a given hash.

Pure managed C# implementation of well-known cryptographic hash functions such as SHA-family (SHA0, SHA1, SHA2), MD-family (MD2, MD4, MD5), RIPEMD, Tiger, Haval, Snefru and others. Moved to Github: https://github.com/AndreyRusyaev/acryptohashnet

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.

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

Ano (Anonymous Network Overlay) is a decentralized IP router based on relaying principle. In Ano all IP traffic is anonymized, including TCP, UDP, ICMP and DNS protocols. Each node acts as a relay and NAT for external traffic.

With BinaryCrypt, you can convert between regular text, binary, hexadecimal, octal decimal and decimal. You can convert only decimal (as of right now) to any base up to base 64. You can also save your converted text to a file or open a converted text file to decrypt the message, and perform basic arithmetic in binary. The git repo for the C# code is located at: https://github.com/m1r4g3/BinaryCrypt-.Net

CapPacketDecryptor is a MapleStory packet decrypting solution which reads .pcap files, decrypts the packets in them, and dumps them to another .pcap file, while reconstructing TCP information.

Want to create your own CA? Have a pain typing openssl command? With Certificate Utilities, we include many functions like create private key. This is the most professional and free certificate toolkit based on openssl and lisenced under under GPL!

CheckMate is a program designed to generate all kinds of checksums and/or hashes. Checksums can simply be displayed or saved and used to verify the integrity of a file later on.

Para proteger la información sensible de miradas ajenas, no basta con ocultarla en una carpeta anónima o ponerla en un archivo comprimido; lo suyo es cifrar los datos para que nadie pueda leerlos

Encriptador es un sencillo sistema para convertir un texto cualquiera en caracteres equivalentes sin sentido, y después poderlos volver a convertir en texto normal. En una única interfaz realizaremos tanto la encriptación como la desencriptación. Sólo hará falta pegar el texto en su ventana correspondiente, que depende si es para desencriptar o para encriptar, y listo

Hasher is a .NET class library to help programmers implement standard hashing and checksum algorithms into their own software. Written entirely in C#, Hasher providers a uniform interface to easily use any of the algorithms contained within this library

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.

Version 1.0.0.1 corrected bug of 1.0.0.0 (name variable array of sourcecode in properties "henk" -> "array")

Crypto.Net is a free and open cryptography library for C# and .Net. AES (Rijndeal), Twofish, Blowfish, RSA, Diffie-Hellman, SSL/TLS, X509-Certificate builder, stream cipher modes or a secure netowrk stream are only some features of this library.

This library exposes security functionality to the programmer, such as random number generation, hashing, salted hashing, message authentication code, symmetric encryption, asymmetric encryption, hybrid encryption, digital signature and in-memory protection. The library is accompanied by a sophisticated reference implementation, that demonstrates how to make use of the CryptoLibrary.