ccrypt: ccrypt (Secure encryption and decryption of files and streams)
ccrypt: 
ccrypt: ccrypt is a utility for encrypting and decrypting files and streams.
ccrypt: It was designed as a replacement for the standard unix crypt utility,
ccrypt: which is notorious for using a very weak encryption algorithm. ccrypt
ccrypt: is based on the Rijndael cipher, which is the U.S. government's chosen
ccrypt: candidate for the Advanced Encryption Standard
ccrypt: (AES, see http://www.nist.gov/aes). This cipher is believed to provide
ccrypt: very strong security.
ccrypt: 
ccrypt: