Projects / ccrypt


ccrypt is a command line utility for encrypting and decrypting files and streams. It was designed as a replacement for the standard Unix crypt utility, which is notorious for using a very weak encryption algorithm. ccrypt is based on the Rijndael cipher, which is the U.S. government's chosen candidate for the Advanced Encryption Standard (AES). This cipher is believed to provide very strong security. A compatibility mode is included for decrypting legacy "unix crypt" files.


Recent releases

  •  19 Oct 2012 16:44

    Release Notes: This release fixes a number of minor portability issues and minor bugs, factors ccrypt core functionality into a convenience library (libccrypt.a), adds a ccguess program to assist in the recovery of mistyped keys, improves error checking and fixes minor compiler warnings, adds minor improvements to Emacs support, and adds a --disable-emacs configuration option.

    •  29 Aug 2009 02:15

      Release Notes: This release fixes a number of portability issues. Compilation errors on several platforms have been fixed, including Mac OS X, Ubuntu, FreeBSD, and Solaris 10. Also, rudimentary OS/2 support via EMX has been added. There is no change in functionality relative to release 1.8.

      •  05 Jun 2009 18:34

        Release Notes: This release fixes some minor bugs and adds minor features. It adds a new --keyref option to avoid a double password prompt. It adds a new exit code in case the key was not entered or not found. It adds internationalization support and German and French translations. It fixes minor bugs in the user interface and has updated emacs support. Password files ending in a DOS-style end-of-line marker are now correctly recognized. Improved portability and testing.

        •  30 Mar 2004 04:07

          Release Notes: Large file support now works under Cygwin. Prompting twice for encryption passwords is now the default. The --disable-libcrypt configuration option was added for systems where libcrypt is broken.

          •  27 Aug 2003 09:46

            Release Notes: A rare, but potentially nasty segmentation fault was fixed.


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