14 lines
666 B
Plaintext
14 lines
666 B
Plaintext
ccrypt is a utility for encrypting and decrypting files
|
|
and streams. It was designed to replace the standard unix
|
|
crypt utility, which is notorious for using a very weak
|
|
encryption algorithm. ccrypt is based on the Rijndael
|
|
block cipher, which was also chosen by the U.S. government
|
|
as the Advanced Encryption Standard (AES, see
|
|
http://www.nist.gov/aes/). This cipher is believed to pro-
|
|
vide very strong cryptographic security.
|
|
|
|
Unlike unix crypt, the algorithm provided by ccrypt is not
|
|
symmetric, i.e., one must specify whether to encrypt or
|
|
decrypt. The most common way to invoke ccrypt is via the
|
|
commands ccencrypt and ccdecrypt.
|