Browse free open source Cryptography software and projects below. Use the toggles on the left to filter open source Cryptography software by OS, license, language, programming language, and project status.

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  • 1
    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 The algorithm this plugin uses is based off FIPS-181 which was withdrawn by NIST a while back.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.
    Downloads: 22 This Week
    Last Update:
    See Project
  • 2
    mp3stegz is an application that apply steganographic (steganography) algorithm in mp3 files. mp3stegz will maintain original mp3 file's size and sound quality. The hidden message is compressed(zlib) and encrypted(Rijndael).
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    Downloads: 24 This Week
    Last Update:
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  • 3
    QPass password manager
    QPass is easy to use, open source password manager application with built-in password generator. You can store in it's database such data as passwords and logins which will be encrypted using AES-256 with PBKDF2(number of iterations set by user). Each entry can include additional information about entry such as name, url adress and description.
    Downloads: 3 This Week
    Last Update:
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  • 4
    Small stream encryption program for Unix
    Downloads: 7 This Week
    Last Update:
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  • 5
    An encryption/decryption engine which can encrypt any file(text, pdf , doc, rtf , gpg , mp3 , mp4 etc..) or any data on your PC such that only you with the valid password can decrypt it.Also it will compress the file while encrypting it.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 6
    ShredBitz
    ShredBitz is a free and simple file shredder tool that can wipe selected files from any hard disk drive. ShredBitz is written in the java programming language and uses a custom written algorithm for shredding. ShredBitz is a very powerful tool.
    Downloads: 3 This Week
    Last Update:
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  • 7

    CryptKeeper

    Encryption/Decryption Application

    Basic text file encryption & decryption. Can encrypt text files with or without formatting. CryptKeeper is the upgraded version of EnCREEPtor.
    Downloads: 5 This Week
    Last Update:
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  • 8
    OpenSSL Digest frontend for Windows. This program can be used to create/verify MD2/MD4/MD5/SHA/SHA1/MDC2/RIPEMD160 checksums of your files. OpenSSL32 now supports file encryption/decryption using various encryption Ciphers, such as Blowfish, Idea, DES,
    Downloads: 4 This Week
    Last Update:
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  • 9
    DCrypt
    DCrypt is an encryption and decryption tool that combines in a smart way multiple algorithms. The combination of multiple strong algorithms makes it much more difficult for hackers to get the plain content of the encrypted file without the password.
    Downloads: 3 This Week
    Last Update:
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  • 10
    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 :-)
    Downloads: 2 This Week
    Last Update:
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  • 11
    Figaro's Password Manager (FPM) is a GNOME application that allows you to securely store & categorize your passwords, which are encrypted using the blowfish algorithm. It can launch applications using the host names, user names, and passwords you supply.
    Downloads: 2 This Week
    Last Update:
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  • 12
    ISC - The ISAAC Stream Cipher

    ISC - The ISAAC Stream Cipher

    ISC lets you encrypt & decrypt text and files of any type up to 4GB

    ISAAC is a cryptographically secure pseudo-random number generator (CSPRNG) and stream cipher. It was developed by Bob Jenkins from 1993-1996 and placed in the Public Domain. ISAAC is fast - especially when optimised - and portable to most architectures in nearly all programming and scripting languages. After more than 20 years of existence ISAAC has not been broken, and the little program you have here allows you to use it to encrypt and decrypt text of arbitrary length, files of any type, on a key-phrase of any complexity. ISC is a symmetric key encryption system, which means that both the sender and recipient of a message must possess the key.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 13
    CryptoHelper is a Java program designed to aid in the decryption of classical ciphers, ie pre WWII ciphers. It brings together tools like frequency analysis, friedman tests, enciphering/deciphering for several clasical ciphers, and brute force algorithm
    Downloads: 1 This Week
    Last Update:
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  • 14
    A GnuPG Frontend GUI made in C#. It is compatible with PGP as well so it can be a very useful tool for encryption/decryption. It also incorporates a shell extension so it can be easy to right click and decrypt or decrypt.
    Downloads: 1 This Week
    Last Update:
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  • 15
    Mystery

    Mystery

    software cryptographic data protection

    Software tool for cryptographic protection of data is used to encrypt and decrypt files. Signature and check for dokumemntov and text files.
    Downloads: 1 This Week
    Last Update:
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  • 16
    Novel Insight Inner Circle

    Novel Insight Inner Circle

    Graphical message and file encryption tool

    Novel Insight Inner Circle is a message and file encryption tool for Windows. The software is developed in Java and requires 64bit Java JRE. The encryption uses AES-256 twice so it is harder to crack than the industry standard pure AES 256bit implementation (theoretical key size is 512 bit). The software writes encrypted data in ASCII text format which can be cut'n'pasted to messaging apps or to emails and back to Inner Circle when decrypting data. IMPORTANT: The software requires new OpenJDK 16 (Not Oracle's J2RE 1.8) to run. Install, for example, AdoptOpenJDK for Windows. NOTE: By using encryption twice the implementation is (in theory) vulnerable to Meet-In-The-Middle attack reducing key size to 256bit but the attack still requires 2^256 bytes of memory making it impossible in practice.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 17
    TBFAA/encoder
    A program that encrypts multiple files. It uses new encryption algorithms, such as a Three-Block Feistel chiper, ArchFurry's algorithm and a new hash function. Licensed under the ISC.
    Downloads: 1 This Week
    Last Update:
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  • 18
    OSX Application to keep notes and information safe under 448 bit blowfish encryption system. The application is in beta stage, with some major bugs around. You are advised to verify the bug list.
    Downloads: 1 This Week
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  • 19
    ALIMP (A LIttle More Privacy) is a .NET C# software enabling users to easily cypher and de-cypher files on their computer using common algorithm (DES, 3DES, AES, ...) that are shipped with the .NET Frawemork.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 20
    This project will provide a library for using the AES round 3 cipher candidates (Mars, RC6, Rijndael, Serpent, and Twofish) in an easy to use API. Support for MD5, SHA.
    Downloads: 0 This Week
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  • 21
    Alkindus is an automated solver for short monoalphabetic substitution ciphers without word divisions.
    Downloads: 0 This Week
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  • 22
    B-Trust eDoc is a program built on top of LibDigiDoc a free implementation of the OpenXAdES standard for signing/encrypting files using smartcard tokens. It also contains Openssl and PKCS11 wrapper classes in C++ which might be useful to developers.
    Downloads: 0 This Week
    Last Update:
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  • 23
    An original bruteforce-based encryption/decryption system. BBE was originally conceived to chat with encrypted text on IRC. mIRC and X-Chat support BBE via script addon. BBE can also encrypt MIME encoded files. Blowfish encryption is currently supported.
    Downloads: 0 This Week
    Last Update:
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  • 24
    Bootleg AES-256 CBC File Encrypter

    Bootleg AES-256 CBC File Encrypter

    A simple file encryption software that utilizes the AES-256 CBC

    A simple file encrypter written in C/C++. Tested sucessfully with 0.5 GB file. Despite having well-functioning cryptographic features, it may not be reliable. This application is provided with no warranty or guarantees of any kind. Use it at your own risk! Source code is available at: https://github.com/Northstrix/Bootleg-AES-256-CBC-File-Encrypter Made with the help of Perplexity Similar projects: https://sourceforge.net/projects/sta-file-encrypter/ https://sourceforge.net/projects/aes-256-cbc-file-encrypter/
    Downloads: 0 This Week
    Last Update:
    See Project
  • 25
    Cameloid is a new TCP/UDP based P2P voice and video encryption software, that will provide high level of privacy for all levels of communication using only quality secret-key ciphers to ensure long-term security.
    Downloads: 0 This Week
    Last Update:
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