Browse free open source Cryptography software and projects for Windows and ChromeOS 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
    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: 168 This Week
    Last Update:
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  • 2
    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: 5 This Week
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  • 3
    Mailcrypt is an Emacs Lisp package which provides a simple interface to public key cryptography with PGP [and now GnuPG!]. Mailcrypt makes strong cryptography a fully integrated part of your normal mail and news handling environment
    Downloads: 7 This Week
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  • 4
    ufonet

    ufonet

    UFONet - Denial of Service Toolkit

    UFONet - Is a set of hacktivist tools that allow launching coordinated DDoS and DoS attacks and combine both in a single offensive. It also works as an encrypted DarkNET to publish and receive content by creating a global client/server network based on a direct-connect P2P architecture. + FAQ: https://ufonet.03c8.net/FAQ.html -------------------------------------------- -> UFONet-v1.8 [DPh] "DarK-PhAnT0m!" (.zip) -> md5 = [ c8ab016f6370c8391e2e6f9a7cbe990a ] -> UFONet-v1.8 [DPh] "DarK-PhAnT0m!" (.tar.gz) -> md5 = [ 8a4cd86c21db2ad657eb75e6ac0e52d5 ] --------------------------------------------
    Downloads: 7 This Week
    Last Update:
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  • 5
    Tristero is a framework for creating distributed peer-to-peer file sharing applications. It uses standard technologies for each component, reducing the work of implementing a particular network architecture to the novel aspects of that system and eliminat
    Downloads: 5 This Week
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  • 6
    An anonymizing peer-to-peer file storage network, similar to Freenet and Gnutella - only better, of course.
    Downloads: 3 This Week
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  • 7
    TCPFile is a friend to friend file sharing / instant messaging Java (1.6) program offering zipped and fully encrypted (RSA, AES) communication.
    Downloads: 3 This Week
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  • 8
    Cassiopeia's BitMail

    Cassiopeia's BitMail

    Encrypting E-Mail Client

    BitMail is a Proof-of-Concept- / Design-Study for an Qt E-Mail Client. POP3 / IMAP / SMTP / P2P E-Mail-Client. ● Qt E-Mail Client. ● Build-in Encryption to secure E-Mails ● IMAP & POP3 ● Additionally a full decentral P2P Email-Option via the Echo Protocol ● Store Email for Offline-Friends in the P2P Network. ● Chat and Instant Messaging is build in. ● POPTASTIC function (Chat over Email) ● Calendar widget functionality. ● Open Source. BSD License. "Cassiopeia is the tortoise of Momo, which can communicate through writing on her shell and guides into the future." - Wikipedia. Source from: https://sf.net/projects/spot-on/files/ & https://github.com/textbrowser/spot-on
    Downloads: 2 This Week
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  • 9
    DKIM for JavaMail is a small JAR that can be easily implemented in existing Java projects using JavaMail for sending DKIM signed emails.
    Downloads: 2 This Week
    Last Update:
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  • 10
    KINEC Is Not Encrypted Chat is a client/server chat program designed to keep you secure. It uses strong algorithms for encryption and authentication and will not compromise security.
    Downloads: 2 This Week
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  • 11
    Open Legacy Storage Document: Generic Document Archiving on Disk and Network(using MINA) Framework in Java for huge number of docs(up to 2^192 documents), efficient(Java NIO), crypto, net transfert, web retrieve, J2EE and eMail archiving compatible.
    Downloads: 1 This Week
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  • 12
    An API and test suite, or possibly an application unto itself, to manage keys and allow mail user agents (such as pine or mutt) to use encryption and authentication systems (such as S/MIME) via the services of external encryption suites (such as OpenSSL)
    Downloads: 1 This Week
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  • 13
    It load the current public-timestamp-block from publictimestamp.org and store it in a file to use it e.g. as a signature in an e-mail software. The project is inactive and not under development anymore.
    Downloads: 1 This Week
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  • 14
    AUM CSPRNG & Stream Cipher

    AUM CSPRNG & Stream Cipher

    A minimal CSPRNG reflecting the Zen of cipher design

    AUM is an extremely fast, small-state, cryptographically secure pseudo-random number generator and stream cipher. AUM exhibits uniform distribution, mixes rapidly, has no detected bias, and comes in three variants: AUM16, with an internal state array of 16+4 32-bit words; AUM32, with an internal state of 32+4 words; and AUM64 with a 64+4-word state. The former permit seeding with a key of up to 512 or 1024 bits, the latter with a 2048-bit key.
    Downloads: 0 This Week
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  • 15
    AleHu

    AleHu

    Encrypting, anonymous, unlimited size message transfer system

    AleHu is an open source encrypted message transfer system that encompasses both server (PHP) and client software (Java). Give it a shot: You can try out AleHu by simply running the client using the preconfigured AleHu test server! For further details and instructions on how to quickly install and run AleHu, have a look at the documentation in the Wiki section.
    Downloads: 0 This Week
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  • 16
    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.
    Downloads: 0 This Week
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  • 17
    BEDBUG CSPRNG & Stream Cipher

    BEDBUG CSPRNG & Stream Cipher

    A family of FLEA-inspired CSPRNGs and Stream Ciphers

    BEDBUG is a small, fast, cryptographically secure pseudo-random number generator (CSPRNG) and stream cipher. It exhibits uniform distribution, mixes rapidly (with worst-case avalanche better than 16-bits), has no detected bias, and comes in three variants: BEDBUG128, with an internal state array of 128+3 32-bit words; BEDBUG256, with an internal state of 256+3 words; and BEDBUG512 with a 512+3-word state. The former permit seeding with a key of up to 4096 or 8192 bits, the latter with a 16384-bit key. The BEDBUG generator itself is a mere 5 lines of code: Three rotations; two pseudo-random lookups. The default BEDBUG configuration alternates the rotation constants unpredictably. These four sets of three values differ between BEDBUG128, BEDBUG256 and BEDBUG512 and were selected, tuned and tested in each case for optimal avalanche, which is never less than 16.5 bits. BEDBUG has passed stringent industry-standard tests for randomness, including NIST and DIEHARD.
    Downloads: 0 This Week
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  • 18
    Backup P2P is a peer to peer application doing automated and secured backups inside a community (Jabber, XMPP). Each user shares some available space on his disk with others, to be able in return to remotely backup some of his own data.
    Downloads: 0 This Week
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  • 19
    Commando
    Commando is a military-grade secure communication system.
    Downloads: 0 This Week
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  • 20
    e3 = jabber + java + plugins + svg ||| web start link: http://complat.sourceforge.net/jnlp
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    Downloads: 0 This Week
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  • 21
    CrococryptQuerl

    CrococryptQuerl

    CrococryptQuerl is a web-based file encryption & transfer tool

    CrococryptQuerl =============== CrococryptQuerl (CQuerl) is a web-based open-source file encryption and file exchange tool. If you trust the application service provider which is running CrococryptQuerl, it can be seen as an "anonymous & encrypted safe deposit box for computer files". ---INTRO--- The encryption is done on-the-fly using the user's password. Of course, this requires a trusted TLS/SSL connection to the server running CQuerl. The user provides a file and password and receives an ID. No plaintext data is stored in CQuerl including filenames. If the user looses the ID or forgets the password, the encrypted file cannot be recovered - even by the service provider. DOWNLOAD ======== * A demo running on Google's App Engine (GAE) can be found here: https://crococrypt-querl.appspot.com ==> GAE limits the files to be uploaded to 1MB(!). ==> The file database will be cleared occasionally. ==> Crypto seems to be working slowly on GAE, so be patient! ;)
    Downloads: 0 This Week
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  • 22
    Crypt

    Crypt

    Crypt encryption and decryption is based on ASCII Table Shift.

    Crypt is the developed based on the ASCII Table shift and it can customized based on the user requirements, right from the shifting order and the level of encryption or decryption. It can be integrated to any of the programming language with the custom build of the source code. It can secure from text file to binary code.
    Downloads: 0 This Week
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  • 23
    Cryptix OpenPGP is a library which implements the OpenPGP standard (RFC 2440) in Java.
    Downloads: 0 This Week
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  • 24
    CryptoPy is a pure python implmentation of cryptographic algorithms and applications. The algorithms are developed for readability more than speed. The collection now includes IEEE 802.11i specific algorithms that generated the test vectors for 802.11i.
    Downloads: 0 This Week
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  • 25
    Originally a software partnership between my best friend and myself, Diverse Developments seeks to write "useful stuff", of a very diverse nature... Current projects include a file encoder, and a double-entry accounts package.
    Downloads: 0 This Week
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