Open Source C++ Decryption Software

Vigenère is a program for encrypting and decrypting text using the Vigenère cipher. Built-in cryptanalysis tools make it possible to crack the cipher without needing the key — or even knowing its length.

A simple working implementation of 64-bit DES encryption/decryption alogrithm in C++. Could act as guide to undestanding the algorithm. Its buggy so help me out :-)

NCrypted is a simple file encryption software. It is implemented on top of AES 128-bit algorithm. This software was designed to be as simple as possible, so you won't find any fancy, flashy gui elements or complicated advanced options. You can also use it directly from command line. NCrypted can automatically detect and take advantage of your NVidia graphics card to speed up the file processing.

A user-friendly, cross-platform utility for managing and accessing your most secret data. It stores passwords and whole files, so it can literally store any information you want to keep secret. Access your most-used passwords/URLs right out of a desktop tray icon. For advanced users, it includes a separate utility called Grypto-Transforms, which has a universal hash calculator with all the major hash functions, generic encrypt/decrypt functions and a base64/hex converter. It's not just easy to use, it's also highly secure. Security experts will be happy to know that it uses AES with CCM and has a solid security concept.

A command-line program to encrypt/decrypt a message using a random reciprocal bigram table and write a bigram table to a text file. Executing the program without any command-line arguments starts bigram in message encryption/decryption mode. The program prompts for a password or passphrase and a message to encrypt/ decrypt. After the message is entered the ciphertext is displayed. Executing the program with command-line arguments causes bigram to generate a random bigram table to print to screen or save to disk depending on whether the -f filename argument was given. If the -p passphrase argument is given a specific table is generated and is repeatable each time the same passphrase is given. This program was written to supplement the Enigma Simulator by Dirk Rijmenants. http://users.telenet.be/d.rijmenants/en/enigmasim.htm Enigma message procedures: http://users.telenet.be/d.rijmenants/en/enigmaproc.htm

Most of today's cryptographic standards will be broken with tomorrow's computational power. Azrar is a user-friendly tool for the encryption/decryption of single files - preferably compressed archives - addressing long-term data secrecy. Thus, Azrar provides the possibility to use webspace for secure data transfer between two communication/transfer partners (encryption only, network transfer not yet included in current version). Data in encrypted files are secret/private indefinitely. To achieve long-term data secrecy, Azrar differs from other approaches in terms of not to rely on effective computational deficiencies. It combines a one-time pad with a stream cipher method using the strong cryptographic hash function (family) Skein. Azrar fulfills business requirements for secure data transfer and supports several operating systems natively. It does not use a runtime environment.

The BP-Tools set consist from applications supporting EFT testing, benchmarking and transaction service development. BP-Tools suite currently consists of following three components: - BP-CCALC: Cryptographic Calculator - BP-CardEdit: Thales P3 Input/Output file editor - BP-EMVT: EMV Tool - BP-HCMD: Thales HSM Commander

Cypher is an encryption program that uses the AES (Rijndael) algorithm to encrypt and decrypt files. You can use Cypher to protect sensitive data from unwanted access.

A simple but powerful cross-platform utility for managing and accessing your most secret data. It stores passwords and whole files, so it can literally store any information you want to keep secret. Access your most-used passwords/URLs right out of a desktop tray icon. For advanced users, it includes a separate utility called Grypto-Transforms, which has a universal hash calculator with all the major hash functions, generic encrypt/decrypt functions and a base64/hex converter. Although the interface is simple and intuitive, the security is top-notch. It uses AES with CCM to secure and authenticate the data.

Midbar is more than just a password vault! It's made to significantly increase the cost of unauthorized access to its your personal data. Some tutorials: ESP32 V4.0: https://www.instructables.com/Midbar-V40/ Raspberry Pi Pico V2.0: https://www.instructables.com/Midbar-Raspberry-Pi-Pico-Version-V20/ ESP32 V5.0: https://www.instructables.com/Midbar-V50/ STM32F401CCU6 + Arduino Uno Version V1.0: https://www.instructables.com/Midbar-STM32F401CCU6-Arduino-Uno-Version/ RTL8720DN + Arduino Uno V1.0: https://www.instructables.com/Midbar-RTL8720DN-Arduino-Uno-Version/ ESP8266 V2.0: https://www.instructables.com/Midbar-ESP8266-Version-V20/ STM32F407VET6 + Arduino Uno Version V1.0: https://www.instructables.com/Midbar-STM32F407VET6-Arduino-Uno-Version/ STM32F407VET6 Version V2.0: https://www.instructables.com/Midbar-STM32F407VET6-Version-V20/ ESP32 V6.0: https://www.instructables.com/Midbar-V60/ Teensy 4.1 V3.0: https://www.instructables.com/DIY-Hardware-Data-Vault-With-Teensy-41/

NoFault is a library written in C used to encrypt or decrypt data with XOR encryption. KNoFault, NoFault32 and CLNoFault are direct applications of the library, which is easy to use in your own programs.

Rcrypto is the encryption and decryption software for windows XP,vista and 7 to keep your data secure from unauthorized users. It uses the highly secure algorithm to encrypt every byte of the file.

A Plugin for Pegasus Mail, supporting S/MIME Encryption, Decryption, Signing and Signature verifying. In addition, key management is provided.

Open En/decryption software. Current version allows for 2 keys, 1 at 32 bytes, and 1 at 20 bytes. Supports ASCII and Binary files in a multiple-executable polylithic architecture.

Szyfrator is a GUI application for Windows XP/Vista/7. It encrypts and decrypts text messages using the public RSA algorithm. It generates two 256 bit keys: public and private and was designed to be very easy to use.

encryption/decryption/key generation/CRC. You may use as a library (header *.hpp files)

Encrypt-roller is a encryption/decryption package. The goal of the project is to incorporate multiple encryption schemes and mechanisms to provide security and validity for files being stored or transferred.

The fcrypt and fdecrypt programs provide a comprehensive symmetric encryption tool kit for encrypting and decrypting files.

Simple tool for file encryption and folder content encryption with AES 256. Files can also be hashed with a SHA1 signature. A command line version is available as well as a GUI version. One other useful feature is to encrypt messages for emails.

Rijndog is an easy to use file encryption/decryption package making use of the Rijndael AES algorithm.

a tool used to hash, encrypt & decrypt files. it is integrated into the context menu of windows explorer.