All Free

ExactFile by StudyLamp Software

Creates and tests file checksum digests: md5, sha1, sfv, crc32, ripemd, gost, tiger, md5sum, fsum, sha1sum, etc. Multi-threaded and Unicode compliant. Makes sure files you put on CD-ROM and memory sticks are perfect copies.

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FreeOTFE4PDA by Sarah Dean

A free, open source, "on-the-fly" (OTFE) transparent disk encryption program which allows one or more "virtual memory cards" can be created on your PDA - anything written to which will be automatically, and securely, encrypted before being stored. A PC version is also available, allowing data encrypted on your PC to be read/written on your PDA, and vice versa.

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Tiger Envelopes by Tiger Privacy

With Tiger Envelopes you can stop snoops from reading your email, for free. Forever. You don't need to change your mail client. There are no extra steps. Tiger even puts your message in the envelope for you. One click to install on Windows, Mac, and Linux. Automatically configures Outlook, Outlook Express, Thunderbird, Mac Mail and KMail for you. Open source, of course.

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febooti fileTweak Hash & CRC by febooti software

Hash calculation software febooti fileTweak Hash & CRC is a freeware hash / CRC calculator. Compute hash fingerprint / CRC checksum from any provided file. Supported hash / CRC formats: CRC32, MD2, MD4, MD5, SHA-1, SHA-224, SHA-256, SHA-384, SHA-512, RIPEMD-128, RIPEMD-160, RIPEMD-256, RIPEMD-320, WHIRLPOOL-1 and Tiger-192.

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FreeOTFE Explorer by Sarah Dean

FreeOTFE Explorer allows encrypted volumes to be mounted on MS Windows PCs, and their contents accessed (both reading and writing) via a Windows Explorer-style user interface. Unlike all other disk encryption systems, FreeOTFE Explorer does not need any device drivers to be installed, making it perfect for use with USB drives, at Internet Cafés (AKA Cybercafés), where PCs are available for use, but only as a "standard" user.

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FSUM by SlavaSoft Inc.

Fast file checksum generation & verification tool. Allows to create/verify popular file hash/checksum: MD2,MD4,MD5, SHA-1,SHA-2(256,384,512), RIPEMD-160,PANAMA,TIGER, CRC-32,ADLER32, and the message digest used in eMule/eDonkey(ed2k) software. Use it to check files for corruption (data integrity checking). Allows to recurse directories. Supports MD5 & SFV files. Compatible with md5sum, MD5Summer, Easy MD5 Creator, SFV Checker/Verifier, Win CRC32.

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ALTools Lunar New Year Desktop Wallpaper by ESTsoft Corp.

ALTools brings you all 12 animals of the Lunar Zodiac along with a bonus Lunar Zodiac wallpaper. Each high-quality wallpaper comes in 6 resolutions to fit any screen resolution up to 2560x1600. An easy HTML wallpaper installer is included. Each of the Mouse, Bull, Tiger, Rabbit, Dragon, Snake, Horse, Lamb, Monkey, Chicken, Dog, Pig, and Lunar Zodiac wallpapers features an ALTools Egghead Animal. See http://www.altools.net for more wallpapers.

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HashCalc by SlavaSoft Inc.

Free, fast calculator to compute hash, checksum, HMAC values for file, text and hex string. Supports popular message digest and check sum algorithms: MD2,MD4,MD5, SHA1,SHA2, RIPEMD160,PANAMA,TIGER, CRC32,ADLER32, and the hash used in eMule/eDonkey (eDonkey2000,ed2k). With this tool you can test for corruption FTP download/upload transfers, compare music,audio,video,game,image files, verify a CD, perform checking of mp3,mpeg,vcd,iso,zip downloads.

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MEO File Encryption Software by NCH Software

MEO is a powerful data encryption application to encrypt or decrypt files of any type, including Microsoft Word, Excel and PDF documents. MEO allows you to protect your sensitive data against un-authorized viewers by utilizing the latest data encryption technologies. Keep your documents safe and secure with this free data encryption software.

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FreeOTFE by Sarah Dean

FreeOTFE is a free, open source, "on-the-fly" (OTFE) transparent disk encryption program. Using this software, you can create one or more "virtual disks" on your PC - anything written to which will be automatically, and securely, encrypted before being stored. Many features included, with both PC and PDA versions available.

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