The clamav-unofficial-sigs script provides a simple way to download, test, and updatethird-party signature databases provided by Sanesecurity, MSRBL, SecuriteInfo,MalwarePatrol, and OITC. The package also contains cron, logrotate, and man files. Platforms: BSD, Mac, Linux

The functional objective is to provide a simple secure socket infrastructure for client/server apps. The usability objective is to allow inexperienced developers to deploy the system and write 'Hello World' with a single page of documentation. Platforms: Windows, Mac, Linux

Checkdirs is a perl script that runs on UNIX-based operation systems as well as on pretty much any recent Windows. Checkdirs is designed to test ISO (containing a .sfv) as well as ZIPped releases for their integrity. Many more functions, try it out! Platforms: Windows, Mac, Linux

check_x509 is a generic script to check X509 entities for expiration periods. It can be run from nagios, nrpe, cron, on the command line, or in other scripts or programs. Platforms: Windows, Mac, Linux

Common Data Security Architecture Objective-C Wrapper Framework - Digest: MD5/SHA-1 - Encryption/Decryption: Symmetric encryption - Utils: Base64 encoding/decoding Platforms: Mac

A powerful, provider-based .NET CAPTCHA control with audio challenge and Microsoft Visual Studio design-time support. Platforms: Windows, Mac, Linux

Capra is a Open Source tool to quickly get some nice and useful reports out off your Watchguard Fireware log files. Platforms: Windows, Mac, Linux

Discontinued lightweight Desktop-Files/SMB/FTP crawler and search engine. Platforms: Windows, Mac, Linux

Bork is a very small, cross-platform file encryption utility. It is written in Java and designed to be included along with the files it encrypts for long-term storage (eg on CD-R). Its minimal external dependencies make it fairly futureproof. Platforms: Windows, Mac, Linux

A 100% pure Java Swing ASN.1 analysis utility for inspecting arbitrary BER-encoded data files. It allows inspection of data with unknown structure, can drill down to any nesting level and allows to interpret embedded OCTET STRING data recursively. Platforms: Windows, Mac, Linux

Blueblock takes a string of text and converts it into block of blue pixels(.png file). It is envisioned by the author that the block of blue pixels could be used as a background picture and used to convey messages secretly to those in the know. Platforms: Windows, Mac, Linux

BlowfishVHDL - free fully synthesizable Blowfish encryption algorithm hardware implementation. Platforms: Windows, Mac, Linux

Bloppy Blowfish PHP (En/De)crypter can crypt, with a private key, text messages or files, send it via e-mail and decrypt it. You can inject a crypted message into any kind of file (like JPEG image) and send it via e-mail. Platforms: BSD, Mac, Linux

Bias is a cross-platform versatile information management application / Organizer Platforms: Windows, Mac, Linux

BetterAWStats is made to provide better statistics out of the data AWStats provides. It is not a replacement of AWStats. It is using all data and language resources from AWStats, so the same translations and general features are always available also in Platforms: Windows, Mac, Linux

BeeCrypt is an ongoing project to provide a strong and fast cryptography toolkit. Includes entropy sources, random generators, block ciphers, hash functions, message authentication codes, multiprecision integer routines, and public key primitives. Platforms: Windows, BSD, Mac, Linux

bcrypt is a lightweight blowfish file encryption utility which aims for cross-platform portability of not only the actual code, but the encrypted files as well. In addition to providing 448-bit encryption, bcrypt overwrites input files with random garbage Platforms: Windows, BSD, Mac, Solaris, Linux

A smart card-based public key cryptography system based on elliptic curves, using AES for session key generation and SHA for hashing. This project will include the smart card software, terminal software, and a public key server. Platforms: Windows, Mac, Linux

BarTex is a system designed to create inexpensive tickets for events. It uses a crypto system to verify tickets using barcodes; thus eliminating the cost of expensive, colorful tickets that cannot be photocopied/forged. Platforms: Windows, Mac, Linux

*Unofficial* patch for DALnet's ircd, currently for version 1.4.36. Provides complete IPv6 and IPv4-in-IPv6 support and SSL support. Platforms: BSD, Mac, Solaris, Linux