ccrypt | Kali Linux Tools (2024)

ccrypt

ccrypt is a utility for encrypting and decrypting files and streams. It wasdesigned as a replacement for the standard unix crypt utility, which isnotorious for using a very weak encryption algorithm. ccrypt is based on theRijndael cipher, which is the U.S. government’s chosen candidate for theAdvanced Encryption Standard (AES, see http://www.nist.gov/aes). This cipher isbelieved to provide very strong security.

Installed size: 176 KB
How to install: sudo apt install ccrypt

ccat

Encrypt and decrypt files and streams

root@kali:~# ccat -hccrypt 1.11. Secure encryption and decryption of files and streams.Usage: ccrypt [mode] [options] [file...] ccencrypt [options] [file...] ccdecrypt [options] [file...] ccat [options] file...Modes: -e, --encrypt encrypt -d, --decrypt decrypt -c, --cat cat; decrypt files to stdout -x, --keychange change key -u, --unixcrypt decrypt old unix crypt filesOptions: -h, --help print this help message and exit -V, --version print version info and exit -L, --license print license info and exit -v, --verbose print progress information to stderr -q, --quiet run quietly; suppress warnings -f, --force overwrite existing files without asking -m, --mismatch allow decryption with non-matching key -E, --envvar var read keyword from environment variable (unsafe) -K, --key key give keyword on command line (unsafe) -k, --keyfile file read keyword(s) as first line(s) from file -P, --prompt prompt use this prompt instead of default -S, --suffix .suf use suffix .suf instead of default .cpt -s, --strictsuffix refuse to encrypt files which already have suffix -F, --envvar2 var as -E for second keyword (for keychange mode) -H, --key2 key as -K for second keyword (for keychange mode) -Q, --prompt2 prompt as -P for second keyword (for keychange mode) -t, --timid prompt twice for encryption keys (default) -b, --brave prompt only once for encryption keys -y, --keyref file encryption key must match this encrypted file -r, --recursive recurse through directories -R, --rec-symlinks follow symbolic links as subdirectories -l, --symlinks dereference symbolic links -T, --tmpfiles use temporary files instead of overwriting (unsafe) -- end of options, filenames follow

ccdecrypt

Encrypt and decrypt files and streams

root@kali:~# ccdecrypt -hccrypt 1.11. Secure encryption and decryption of files and streams.Usage: ccrypt [mode] [options] [file...] ccencrypt [options] [file...] ccdecrypt [options] [file...] ccat [options] file...Modes: -e, --encrypt encrypt -d, --decrypt decrypt -c, --cat cat; decrypt files to stdout -x, --keychange change key -u, --unixcrypt decrypt old unix crypt filesOptions: -h, --help print this help message and exit -V, --version print version info and exit -L, --license print license info and exit -v, --verbose print progress information to stderr -q, --quiet run quietly; suppress warnings -f, --force overwrite existing files without asking -m, --mismatch allow decryption with non-matching key -E, --envvar var read keyword from environment variable (unsafe) -K, --key key give keyword on command line (unsafe) -k, --keyfile file read keyword(s) as first line(s) from file -P, --prompt prompt use this prompt instead of default -S, --suffix .suf use suffix .suf instead of default .cpt -s, --strictsuffix refuse to encrypt files which already have suffix -F, --envvar2 var as -E for second keyword (for keychange mode) -H, --key2 key as -K for second keyword (for keychange mode) -Q, --prompt2 prompt as -P for second keyword (for keychange mode) -t, --timid prompt twice for encryption keys (default) -b, --brave prompt only once for encryption keys -y, --keyref file encryption key must match this encrypted file -r, --recursive recurse through directories -R, --rec-symlinks follow symbolic links as subdirectories -l, --symlinks dereference symbolic links -T, --tmpfiles use temporary files instead of overwriting (unsafe) -- end of options, filenames follow

ccencrypt

Encrypt and decrypt files and streams

root@kali:~# ccencrypt -hccrypt 1.11. Secure encryption and decryption of files and streams.Usage: ccrypt [mode] [options] [file...] ccencrypt [options] [file...] ccdecrypt [options] [file...] ccat [options] file...Modes: -e, --encrypt encrypt -d, --decrypt decrypt -c, --cat cat; decrypt files to stdout -x, --keychange change key -u, --unixcrypt decrypt old unix crypt filesOptions: -h, --help print this help message and exit -V, --version print version info and exit -L, --license print license info and exit -v, --verbose print progress information to stderr -q, --quiet run quietly; suppress warnings -f, --force overwrite existing files without asking -m, --mismatch allow decryption with non-matching key -E, --envvar var read keyword from environment variable (unsafe) -K, --key key give keyword on command line (unsafe) -k, --keyfile file read keyword(s) as first line(s) from file -P, --prompt prompt use this prompt instead of default -S, --suffix .suf use suffix .suf instead of default .cpt -s, --strictsuffix refuse to encrypt files which already have suffix -F, --envvar2 var as -E for second keyword (for keychange mode) -H, --key2 key as -K for second keyword (for keychange mode) -Q, --prompt2 prompt as -P for second keyword (for keychange mode) -t, --timid prompt twice for encryption keys (default) -b, --brave prompt only once for encryption keys -y, --keyref file encryption key must match this encrypted file -r, --recursive recurse through directories -R, --rec-symlinks follow symbolic links as subdirectories -l, --symlinks dereference symbolic links -T, --tmpfiles use temporary files instead of overwriting (unsafe) -- end of options, filenames follow

ccguess

Search for ccrypt encryption keys

root@kali:~# ccguess -hccguess 1.11. Search for ccrypt encryption keys.Usage: ccguess [options] file...Options: -h, --help print this help message and exit -V, --version print version info and exit -L, --license print license info and exit -K, --key <key> specify approximate key -d, --depth try up to this many changes to key (default: 5) -c, --continue keep trying more keys after first match -n, --non-printable allow non-printable characters in keys -t, --chartable <chars> characters to use in passwords (default: printable)Arguments: file... files to read encrypted data from, or '-' for stdin

ccrypt

Encrypt and decrypt files and streams

root@kali:~# ccrypt -hccrypt 1.11. Secure encryption and decryption of files and streams.Usage: ccrypt [mode] [options] [file...] ccencrypt [options] [file...] ccdecrypt [options] [file...] ccat [options] file...Modes: -e, --encrypt encrypt -d, --decrypt decrypt -c, --cat cat; decrypt files to stdout -x, --keychange change key -u, --unixcrypt decrypt old unix crypt filesOptions: -h, --help print this help message and exit -V, --version print version info and exit -L, --license print license info and exit -v, --verbose print progress information to stderr -q, --quiet run quietly; suppress warnings -f, --force overwrite existing files without asking -m, --mismatch allow decryption with non-matching key -E, --envvar var read keyword from environment variable (unsafe) -K, --key key give keyword on command line (unsafe) -k, --keyfile file read keyword(s) as first line(s) from file -P, --prompt prompt use this prompt instead of default -S, --suffix .suf use suffix .suf instead of default .cpt -s, --strictsuffix refuse to encrypt files which already have suffix -F, --envvar2 var as -E for second keyword (for keychange mode) -H, --key2 key as -K for second keyword (for keychange mode) -Q, --prompt2 prompt as -P for second keyword (for keychange mode) -t, --timid prompt twice for encryption keys (default) -b, --brave prompt only once for encryption keys -y, --keyref file encryption key must match this encrypted file -r, --recursive recurse through directories -R, --rec-symlinks follow symbolic links as subdirectories -l, --symlinks dereference symbolic links -T, --tmpfiles use temporary files instead of overwriting (unsafe) -- end of options, filenames follow

elpa-ps-ccrypt

elpa-ps-ccrypt provides low-level support for reading, writing, andloading files encrypted with ccrypt. It hooks into the low-level file I/Ofunctions (including write-region and insert-file-contents) so that theyautomatically encrypt or decrypt a file if the file appears to need it(based on the extension of the file name). Packages like Rmail, VM, GNUS,and Info should be able to work with encrypted files without modification.

Installed size: 75 KB
How to install: sudo apt install elpa-ps-ccrypt