Binary package “ccrypt” in ubuntu eoan

secure encryption and decryption of files and streams

 ccrypt is a 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, see This cipher is
 believed to provide very strong security.