Cipher - A Cryptogram Game by uuba.com
Challenge your mind with great quotes and bad jokes. Cipher is a word game to unscramble phrases by correctly substituting letters of the alphabet into the puzzle - hence deciphering the phrase. Freeware edition includes 1400 puzzles, ability to load other puzzle files, and "crypto-tool" to...
http://www.bradtrupp.com/sw/dl4006.php?icipher0.exe - 412Kb - Download - Screenshot

Power Crypt
Power Crypt is an industrial strength file encryption program. It uses the Advanced Encryption Standard (AES) cipher algorithm, which is the most advanced and powerful encryption method used today. It's endorsed by the U. S. government's Federal Information Processing Standard (FIPS) It offers... Your files are encrypted with ease using a password as the encryption key. ... Send encrypted files to others with Power Crypt, decrypting is as easy as double clicking and entering the correct password.
http://www.globalwebmonitor.com/software/PowerCryptSetup.exe - 496Kb - Download - Screenshot

Encode It
Encode It allows you to safely encrypt, decrypt, or shred one or more files, including complete folders and all it's sub folders in one easy step. Files are encrypted in place using the 524,288 Bit cipher SCC, better know as the king of ciphers. The combination of the In-Place Encryption and SCC... There's no compromising security when it comes to Encode It. ... Download Encode It now and start using it today! ... Designed with both a project and explorer interface, it is sure to satisfy even the most demanding professional.
http://www.skylarkutilities.com/download/encode-it.zip - 291Kb - Download - Screenshot

QuickCrypt Library
A fast, highly optimized implementation of symmetric (private-key) encryption/decryption algorithms: DES, Triple DES (3DES), DESX, BLOWFISH, RIJNDAEL (AES - Advanced Encryption Standard), GOST (USSR/Russian Encryption Standard). It supports 5 modes of operation: ECB (Electronic Codebook), CBC... It has no external dependencies such as MFC DLLs, COM/DCOM or other component. ... The help file has C, C++ and Visual Basic (VB) examples showing how to add encrypting/decrypting functionality to Windows applications quickly and easily.
http://www.slavasoft.com/zip/quickcrypt.zip - 400Kb - Download - Screenshot

TopSecret NxG
Protect your files from unauthorized acces! Send encoded email messages. Encode your private data in your virtual safe and protect your files. TopSecret is a data protecting application, ciphering resources and applications in order to make the data unreadable for other users on the same computer. ... The most important program features: Your personal safes (virtual drives) Users and safes number limited only by hard disc capacity 3 different ciphering algorithms: Rijndael, Serpent, Twofish "On the fly" ciphering technology Safe correspondence by e-mail ciphering Screenlock, in case...
ftp://ftp.gdata.pl/pliki/ts_nxg_en.exe - 6Mb - Download - Screenshot

Kryptel Lite
Kryptel Lite is a free version of Kryptel. While it lacks some advanced Kryptel features, it is a fast and easy-to-use program, which will perfectly suit your needs if your security demands are not very high. It supports drag-and-drop operation and integrates to the Windows Explorer right-click... Kryptel Lite uses industry-standard DES cipher for encryption and includes a single-pass file shredder for secure file deletion.
http://www.kryptel.com/download/krlite.exe - 1Mb - Download - Screenshot

MSU StegoVideo
Free program for hiding information in video. Data that you hide can be recovered even from compressed video, or if the video was compressed again by another codec! We smartly change video with understanding how codecs works, introducing small amounts of noise. ... You can hide not so big files, but for cipher communication or video secret marking it is enough! ... You can manage redundancy of information in film - if you want to compress video with low bitrate, you should increase redundancy, and vice versa.
http://compression.ru/video/stego_video/src/msu_stegovideo_exe.zip - 126Kb - Download - Screenshot

LTFCrypt
Would you like to use C++ to build your own file encryption program? This real-world example source code package contains a fully functional program that encrypts and decrypts text or binary files. This is an easy way for you to learn how to use Visual C++ with LibTomCrypt, a public domain and... In this example source codes, the symmetric block cipher chaining mode used is CTR (Counter Mode). ... htm The LTFCrypt example source code package comes with Visual C++ projects and source codes for Visual C++ 6.
http://www.yeohhs.com/demo/ltfcrypt.zip - 276Kb - Download - Screenshot

PowerKey
PowerKey is an advanced encryption toolkit with many unique features which you won't come across in other products of such a kind available online. PowerKey uses encryption types, which comply with U. S. export restrictions. It allows you to perform block encryption of files and folders with any... You are free to select any cipher mode to be used by the programm (we recommend using Cipher Block Chaining (CBC) Mode). ... Program also has secure deletion bookmark where you may choose what files/folders you want to wipe.
http://www.kl-soft.com/download/pkey_setup.exe - 1Mb - Download - Screenshot

SecExFile Home
SecExFile brings one-click file protection to the desktop. It integrates with Windows Explorer to make securing your personal or corporate data easy. SecEx File can be configured to email the armoured file once encryption is completed.
http://www.bytefusion.com/download/bin/secexfilehome.exe - 2Mb - Download - Screenshot