- Canadian encryption software and companies
- Cisco Systems ISAKMP Distribution
- Encryption library
- Free Cryptographic Libraries: A comparison
- Elliptic curve and RSA public-key encryption software
- Disk encryption software
- Disk/File Wiping Utilities
- Encrypted socket protocol (reference)
- FastCAST's Homepage
- Security Code DES in Java, C++ firewall class library
- Security toolkit for RSA, DSA, DES, DH, X.509, PKCS, PEM, X.500, and BYOG
- Internet Locations for Materials on the Disks for Applied Cryptography
- Internet Locations for Materials on the Disks for Applied Cryptography
- Dcyphers keyboard sniffer
- P5-optimised code for various hash algorithms
- LInteger - C++ bignum library
- Linux Packet Sniffer
- Microsoft CryptoAPI
- PGP key manager, PGP netscape plugin, Motif and Win32 file encrypter using cryptlib, cryptlib Java wrappers
- Speech encryption (with a neat anti-Clipper graphic)
- PC Security Software & Sources
- Private Idaho User's Manual
- RIPEM
- RSAEURO - Cryptography For The World
- Disk encryption software for DOS and Windows
- Various encryption routines
- Ssh (Secure Shell) Home Page
- SSLeay and SSLapps FAQ
- Speak Freely for Windows (encrypted voice communications over the internet)
- Systemics Software Archive (crypto extensions for perl and Java)
- The Cryptography and PGP Page
- Tiny Encryption Algorithm
- Transparent Cryptographic File System
- Uni-GH Siegen - Security-Server - Kryptographie
- C++ class library of cryptographic primitives
- Crypto AG Switzerland
- Cryptomathic homepage
- DATACRYPT Home Page File and file transfer encryption
- DataGuardŽ - The Software Safe IDEA and SEAL file encryption for Win32
- Deming Software S/MIME software for MS Exchange and Eudora
- Diskcrypt 95 Floppy drive encryption for Windows 95
- EMD Enterprises
- Encrypt-It Plus
- Encryption Plus (Visual Basic)
- Encrytor DES file encryption for Windows
- Entrust - Home Page
- ERACOM
- F-Secure Cryptography Products
- Formal Systems
- Hide Me for Windows
- HRB Systems
- IBM SecureWay
- Invincible Data Systems, Inc.
- NEXUS Solutions NTrust
- NTrust
- RAMPART for DOS/Windows
- DES disk encryption for Win3.x/Win95
- SecureFile (file encryption and signing for Win95/NT)
- DES and IDEA encryption software for Windows
- Security Domain: electronic message security
- Sioux: Sophisticated & Secure (Apache-based secure web server)
- SKIP Information (US only)
- SKIP in Russia
- Soft Concepts
- SoftWings Enterprises Inc. (DES/triple DES protected OS/2 data transfer)
- SoftWinter - Shade page (Disk encryption for Windows NT)
- SoundCode, Inc.
- Stronghold Homepage (Apache-based secure web server)
- TeamWARE Crypto (ICL's Windows file encryption software)
- Secure EDI over the Internet
- TSS OfficeLock - Data Security for Microsoft Office
- DOS, OS/2, Windows encryption software, encryption hardware
- Virtually Online SEMS email encryption using the RPK algorithm
- PKC-based email encryption software
- Access control, X.509-related software
- VGP home page (freeware encryption tool based on the Blowfish algorithm. It's like Windows Notepad, but with the ability to quickly scramble any text you type)
- Kent Briggs' Home Page
- Kremlin home page (A 32-bit Windows encryption program that supports a variety of encryption schemes)
- Speak Freely
- Free programs written in C language that implement popular error correcting codes
- SFS- DOS device driver that uses SHA in feedback mode
- SFS (mirror)
- TSR hook for DOS that uses IDEA
- SFS -Cypherpunks archive
- nl (mirror)
- dk (mirror)
- it (mirror)
- Secure Device - a DOS device driver that encrypts a virtual, file-hosted volume with IDEA
- CFS - a UNIX device driver that uses DES
- CryptDisk - sistema di cifratura per Macintosh shareware che usa IDEA-CFB
- CryptDisk (U.S.)
- CryptDisk (Dk)
- CryptDisk (Nl)
- HPACK
- Diamond Lock v.2
- Encryptlet - an AppleScript droplet that encrypts files (can use AppleScript-aware version of MacPGP)
- TeamWARE Crypto
- Curve Encrypt (Mac) - version 2.2 (Dk)
- Curve Encrypt (Mac) - version 2.2 (It)
- Atbash2 (DOS) - (Dk)
- Atbash2 (DOS) - (It)
- Anonymity, Privacy, and Security
- Applied Cryptography
- CryptoLib 1.1 (It)
- CryptoLib 1.1 (Au)
- Crypto++ 2.0 - a free C++ class library of many cryptographic primitives
- CryptLib - a free "universal interface" in ANSI C to the major conventional-key (symmetric) algorithms
- Cybanim
- DES source code
- List of books with DES Source Code
- DEScipher/VBX
- IDEA source code
- Snefru hash function
- MIRACL V3.3
- Dynamic Substitution and Dynamic Transposition ciphers
- IMD5
- PowerMac Cryptography Software
- MacPGP 2.6.3 alpha release
- Page on cryptography on the Mac
- Macintosh Cryptography Interface Project
- PGP documentation online
- PGP Source Code and Internals
- analysis of existing public-key infrastructure for PGP
- PGP 2.6.2 for WinNT & Win95
- Pointers to PGP code and utilities
- PGP Internet Drafts
- Links to PGP front-ends and shells for Windows, DOS, Unix, OS2, & MAC
- PgpEudra 0.20
- WinPMAIL
- ProPGP - a free 32-bit PGP front end for Windows '95, v. 1 beta 1 (Feb 1996)
- WPGP home page e code (ZIP format)
- PWRPGP10.ZIP (shell PGP per Windows)
- Aegis 2.1 (shell PGP per Windows)
- PGP QuickFront and PGP Winfront
- Pgpacket, Travel Web Page
- Stamper - servizio gratis
- Wei's Time Stamp Service - gratis
- NOISE.SYS
- Ruby Block Cipher
- Python Cryptography Toolkit - free software (hash, en/decrypt, public-key, etc) for Python (an interpreted object-oriented language similar to Perl or Java)
- CYPRIS (CrYPtographic RISc processor) - a coprocessor chip developed by Lockheed-Martin Advanced Technology Labs for DoD applications
- Enigma a software version of the famous WW2 crypto machine
- Italian code compilation
- Wimsey Crypto collection (old)
- Wimsey Crypto collection (new)
- Replay (Netherlands)
- Michael Paul Johnson's collection
- TrustedWeb
- Tony Patti's home page and Cryptosystems Journal
- Crypto CD
- COPS (Unix security toolkit)
- Cryptographic Extensions for Java and Perl
- Crypto++
- JCrypt
- LiDIA
- LInteger
- SKIP IP layer encryption/key management software
- Crack
- Elliptic curve implementations from Hilarie Orman and Rich Schroeppel
- DES (Eric Young's implementation)
- HAVAL hash function
- MD5 (in C, as distributed by RSA DSI)
- MD5 (in C++, prepared by Mordechai T. Abzug, mabzug1@umbc.edu)
- PGPFone
- RIPEM
- SATAN (Security Administrator's Tool for Analyzing Networks)
- SFS
- SSH
- Adam Shostack's list
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