Compression

RZIP - a large-file compression program similar to gzip or bzip2: Win32 : Linux x86 : Solaris x86

LRZIP - Long Range ZIP or Lzma RZIP compression program: Win32 : Linux x86 : Solaris x86

Cryptography

OpenSSL 1.0.0 beta3 - a toolkit implementing cryptography standards: Win32

BCrypt - encrypt and decrypt files using the Blowfish algorithm: Win32: Linux x86: Solaris x86

6Crypt - encrypt and decrypt files using the RSA RC6 algorithm: Win32 : Linux x86 : Solaris x86

MCrypt - encrypt and decrypt files using the MARS algorithm: Win32 : Linux x86 : Solaris x86

RCrypt - encrypt and decrypt using the Rijndael/AES algorithm: Win32: Linux x86: Solaris x86

SCrypt - encrypt and decrypt files using the Serpent algorithm: Win32 : Linux x86 : Solaris x86

TCrypt - encrypt and decrypt files using the Twofish algorithm: Win32 : Linux x86 : Solaris x86

NCrypt - NMRC File Encryptor / Decryptor / Wiper: Win32 : Linux x86 : Solaris x86

NCrypt is a symmetrical file encryptor/decryptor that gives you the choice of three of the candidates for the NIST AES (Rijndael, Serpent, Twofish). A wipe-only option (DoD standard 5220.22-M/Gutmann method) is also available that is indepedent of the encryption process.

File Wiper

NRM - New Remove File Wiper based on NCrypt: Win32 : Linux x86 : Solaris x86

NRM uses the same flags and syntax as the UNIX 'rm' command, but wipes files thirty-five times using the Gutmann method.

Graphics

XV - an interactive image manipulation program for the X Window System: Linux x86 : Solaris x86

XV can operate on images in the GIF, JPEG, TIFF, PBM, PGM, PPM, XPM, X11 bitmap, Sun Rasterfile, Targa, RLE, RGB, BMP, PCX, FITS, and PM formats on all known types of X displays.

README

Some of these programs contain cryptographic algorithms. Some countries restrict the use, import, export of cryptographic software. Before downloading these programs, please make sure that you comply with these restrictions.