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Special Forums Cybersecurity Is ccrypt AES 256 bit crypto secure enough? Post 302887067 by Perderabo on Wednesday 5th of February 2014 12:43:27 PM
Old 02-05-2014
I have never heard of ccrypt and your link does not convince me that AES-256 is in use. I mostly use gpg for AES-256 bit encryption. Like this:

Code:
gpg -c --cipher-algo aes256 secret.txt

and to decrypt the file:

Code:
gpg secret.txt.gpg

Your link talks about using Rijndael, not AES. Read the AES page on wikipedia. Only 3 members of the Rijndael family are used in AES and all of them have a block size 128 bits. Your link says ccrypt is using a blocksize of 256 bits. I wonder if you have block size and key size confused? ccrypt may be good enough for your purposes, but based on your llink I will stay with gpg.
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gpg-error-config(1)						   User Commands					       gpg-error-config(1)

NAME
gpg-error-config - helper script for building with libgpg-error SYNOPSIS
gpg-error-config [--version] [--prefix=dir] [--cflags] [--libs] [--exec-prefix=dir] DESCRIPTION
The gpg-error-config tool is used to determine the compiler and linker flags that should be used to compile and link programs that use the libgpg-error library. OPTIONS
The following options are supported: --cflags Print the compiler flags that are necessary to compile a program using the specified library. --exec-prefix=dir If specified, use dir instead of the exec installation prefix that the library was built with, when computing the output for the --cflags and --libs options. This option must be specified before any --libs or --cflags options. --libs Print the linker flags that are necessary to link with the specified library. --prefix=dir If specified, use dir instead of the installation prefix that the library was built with, when computing the output for the --cflags and --libs options. This option must be specified before any --libs or --cflags options. This option is also used for the exec prefix if the --exec-prefix option is not specified. --version Print the currently installed version of the library on the standard output. EXAMPLES
Example 1: Getting the libgpg-error library version example% gpg-error-config --version Example 2: Determining the libraries required to link with the libgpg-error library example% gpg-error-config --libs EXIT STATUS
The following exit values are returned: 0 Application exited successfully >0 Application exited with failure FILES
The following files are used by this application: /usr/bin/gpg-error-config Executable for libgpg-error helper script ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWgpg-error | +-----------------------------+-----------------------------+ |Interface stability |Volatile | +-----------------------------+-----------------------------+ SEE ALSO
gpg-error(1), libgpg-error(3), pkg-config(1), attributes(5) Written by Jeff Cai, Sun Microsystems Inc., 2008. SunOS 5.11 10 Jan 2008 gpg-error-config(1)
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