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
    WinSCP

    WinSCP

    WinSCP is a free SFTP, SCP, S3, WebDAV, and FTP client for Windows.

    WinSCP is a popular free file manager for Windows supporting SFTP, FTP, FTPS, SCP, S3, WebDAV and local-to-local file transfers. A powerful tool to enhance your productivity with a user-friendly interface and automation options like .NET assembly or batch file scripting. Use WinSCP also for file editing, directory synchronization and site management. WinSCP is open-source and well documented. It is available in English and many other languages.
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    Downloads: 235,270 This Week
    Last Update:
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  • 2
    waircut

    waircut

    WPS wireless protocol audit software for Windows

    Wireless Air Cut is a WPS wireless, portable and free network audit software for Ms Windows. It is used to check the security of our wps wireless networks and to detect possible security breaches. You can check if the router has a generic and known wps pin set, if it is vulnerable to a brute-force attack or is vulnerable to a Pixie-Dust attack. You can see the Installation instructions on Wiki. ------- Wireless Air Cut es un software de auditoria del protocolo WPS en redes wireless, portable, libre y gratuito para Ms Windows. Sirve para comprobar la seguridad WPS de nuestras redes wireless y detectar posibles brechas de seguridad. Puede comprobar si el router tiene establecido un pin wps genérico y conocido, si es vulnerable a un ataque por fuerza bruta o si es vulnerable a un ataque Pixie-Dust. Ver Instrucciones de instalación en la wiki.
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    Downloads: 3,800 This Week
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  • 3
    Password Safe

    Password Safe

    Popular easy-to-use and secure password manager

    Password Safe is a password database utility. Users can keep their passwords securely encrypted on their computers. A single Safe Combination unlocks them all.
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    Downloads: 2,005 This Week
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  • 4
    JSignPdf
    JSignPdf is an open-source Java application that adds digital signatures to PDF documents.
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    Downloads: 730 This Week
    Last Update:
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  • Find Hidden Risks in Windows Task Scheduler Icon
    Find Hidden Risks in Windows Task Scheduler

    Free diagnostic script reveals configuration issues, error patterns, and security risks. Instant HTML report.

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  • 5
    Password Tech

    Password Tech

    Professional password generator and manager with full Unicode support

    Password Tech is a powerful password generator capable of generating large amounts of cryptographically-secure passwords, pronounceable passwords, pattern-based passwords, passphrases composed of words, and scripted passwords. Passwords can be stored in encrypted databases along with user names, URLs, notes, etc. Password Tech provides lots of options to customize passwords to the users' various needs, and individual scripting with Lua gives full control over the process of password generation. Text encryption is also supported.
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    Downloads: 576 This Week
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  • 6
    FreeArc combines best 7-zip and RAR features: auto-selected LZMA/PPMD/Multimedia compression, 1gb dictionary, exe/dict/delta data filters, updatable solid archives, SFXes, recovery record, AES+Twofish+Serpent encryption, Linux support and much more...
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    Downloads: 348 This Week
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  • 7
    EJBCA, JEE PKI Certificate Authority
    EJBCA is an enterprise class PKI Certificate Authority built on JEE technology. It is a robust, high performance, platform independent, flexible, and component based CA to be used standalone or integrated in other JEE applications.
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    Downloads: 163 This Week
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  • 8
    X Certificate and Key management is an interface for managing asymetric keys like RSA or DSA. It is intended as a small CA for creation and signing certificates. It uses the OpenSSL library for the cryptographic operations. Please see the XCA homepage http://hohnstaedt.de/xca
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    Downloads: 146 This Week
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  • 9
    mendelson AS2

    mendelson AS2

    Implementation of the EDIINT AS2 protocol (RFC 4130)

    mendelson AS2 is the JAVA-based open source EDIINT AS2 solution. Monitoring- and configuration GUI, async & sync MDN, signatures, encryption, TLS, web interface, pluggable into any servlet container, partner manager, certificate manager, data compression, optional profiles: MA, FN. Localized to Spanish, Italian, Portuguese, German, English, French.
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    Downloads: 143 This Week
    Last Update:
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  • 10
    FreeOTFE

    FreeOTFE

    A free "on-the-fly" transparent disk encryption program for PC & PDAs.

    An upstream source site housing the original files for this mirror is no longer available. With this software, you can create one or more "virtual disks" on your PC/PDA. These disks operate exactly like a normal disk, with the exception that anything written to one of them is transparently, and securely, encrypted before being stored on your computer's hard drive.
    Downloads: 7 This Week
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  • 11
    Steganos LockNote
    Store your most valuable notes in a LockNote. Hide your everyday notes in a safe place. Application and document in one: the mechanism to encrypt and decrypt a note is part of it. Secure, simple, independent. No installation required.
    Downloads: 23 This Week
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  • 12
    RetroShare

    RetroShare

    [WARNING] Project has moved to http://github.com/Retroshare/Retroshare

    [IMPORTANT] Retroshare is now distributed on Github. Please go to http://retroshare.net to find the latest releases and sources. RetroShare is a cross-platform, secured and decentralized communication system. It lets you to securely chat, share photos, videos, and more with family and friends, using OpenPGP to authenticate peers and OpenSSL to encrypt all communication.
    Downloads: 8 This Week
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  • 13
    Allow the use of ALL smart cards (including EID or DoD smart card) to logon on Windows Vista & later on stand alone computer. This solution doesn't need an Active Directory. Please look at the projet homepage to see a list of smart cards tested.
    Downloads: 12 This Week
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  • 14
    Codegroup

    Codegroup

    A Java application for transferring computer files in 5 letter groups

    Codegroup is a Java application that will allow one to convert binary (or text) computer files in to 5 letter codegroups for transmission over email, landline telephones, radioteletype or Morse Code. Codegroup has internal error correction & limited cryptography capabilities. Codegroup : ZZZZZ YBPIL AIAIG FMOPP CPAAA DGNGP GPGPA ADNJN ELJKO ELIMO GEOHF KIFGP IFBCB PKCPI YJMHE PHBHP PPOBH NCOHD AKLLL AGHFP DEGEF LKELC EAIJI ABAGP AHPPO IHHPH OHPDF YNFPB ALEPO KMPKP Once this program has a graphical user interface, an Enigma like subsystem must be devised for data whitening. For content encryption, the use of Java's facilities is being considered as a long term option. This project's initial sourcecode is related to : http://www.fourmilab.ch/codegroup/ http://winmorse.com/ https://bitbucket.org/bgneal/cpp-enigma http://www.whence.com/minimodem/ For the User Interface http://www.oracle.com/technetwork/java/javafx/tools/
    Downloads: 14 This Week
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  • 15
    Browser for Tor with Onion Router

    Browser for Tor with Onion Router

    Browser for Tor based on Dooble & Vidalia as integrated Addon

    Tor now plugs into the Browser. Dooble Web Browser, a secure open source userfriendly tool to explore the web secure over Tor. Steer Tor in the Browser (in Settings/Proxy/Tor) with an Add-On based on Vidalia. Just start the Add-On "Tor" in the Browser Add-On-Menu and in Settings/Proxy.
    Downloads: 9 This Week
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  • 16
    LazLock

    LazLock

    Free, cross platform, portable password manager.

    The latest version of LazLock is at https://github.com/cyberfilth/LazLock/releases A free, lightweight, portable password manager for Windows & GNU/Linux that encrypts your data with 128 bit AES encryption. LazLock also includes a password generator which allows you to create more secure passwords. A plain text version of your data is never written to disk as all decryption is done in memory. LazLock is truly portable, no installation is required so it can be run from a USB drive. Unlike similar programs, there are no dependencies on the .NET Framework (Windows) or Mono (Linux) ------------------------------------- Easily Copy and Paste your login details into any website without having to manually type them out. Your passwords aren't shown on screen so you can use LazLock in front of others without compromising your security. Generate more secure passwords for the websites that you visit, you only need to remember one password to unlock them all.
    Downloads: 5 This Week
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  • 17
    Caditor is a portable tabbed text editor featuring encryption, syntax highlighting, autocomplete, line numbering and a functional plugin system.
    Downloads: 3 This Week
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  • 18
    Calypso is a file sharing client using the anonymous network MUTE. Developped using C++ and Qt. For windows and linux, portable to other environments.
    Downloads: 3 This Week
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  • 19
    The goal of this project is to create a GnuPG front end for Mac OS X. To that extent, it will make installing GnuPG on OS X easier and provide inter application services to access GPG. Also, GPGME wrapper in ObjC will be done.
    Downloads: 2 This Week
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  • 20
    SecuXabber

    SecuXabber

    A secure Jabber-client for Android using strong encryption

    SecuXabber is a secure Jabber-client for Android that bases on Xabber and uses a strong, asymmetric enryption that works on top of the XMPP protocol. A key pair is generated on application start-up. Users can send their public key to other SecuXabber users via Bluetooth. This ensures the origin of the public key because people do a face-to-face check during key exchange. After the keys are imported by both users, all communication between them is done fully encrpyted using a strong 4096 bit end-to-end encryption.
    Downloads: 2 This Week
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  • 21
    WASTE is a mesh-based workgroup tool that allows for encrypted, private communication between distant parties on the internet, independant of local network organization.
    Downloads: 2 This Week
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  • 22
    GPG-Crypter
    GPG-Crypter is a graphical front-end to GnuPG(GPG) using the GTK3 toolkit and GPGME library. It has been developed to provide an easy access to GPG encryption and decryption. It supports encryption and decryption of text entered into the program's input fields. It also supports file encryption and decryption.
    Downloads: 4 This Week
    Last Update:
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  • 23
    A simple, secure and free tool for encryption and signature for Microsoft Windows and Unix. Part of the IDEALX "OpenTrust" suite (IDX-PKI, IMC, IDX-smbldap-tools...), it provides confidentiality and security through X.509-PKCS certificates. Languages:
    Downloads: 2 This Week
    Last Update:
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  • 24

    cryptmount

    Linux encrypted filesystem management tool

    cryptmount allows management and user-mode mounting of encrypted filing systems on GNU/Linux systems. Filesystems & crypto-swap can be on either raw block devices or ordinary files, with device-mapper (dm-crypt) and loopback devices setup automatically.
    Downloads: 1 This Week
    Last Update:
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  • 25
    EverCrack cryptanalysis engine. The goal is cryptanalysis of any class of cipher. The focus now is the kernel - cryptanalysis of unilateral monalpha substitution ciphers extremely quickly, and later, cryptanalysis of complex ciphers for the kernel.
    Downloads: 3 This Week
    Last Update:
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