Mcrypt v.2.6.8 (x86_64-pc-linux-gnu) Linked against libmcrypt v.2.5.8 Copyright (C) 1998-2002 Nikos Mavroyanopoulos (nmav@gnutls.org)

Mcrypt encrypts and decrypts files with symmetric encryption algorithms. Usage: mcrypt [-dFusgbhLvrzp] [-f keyfile] [-k key1 key2 ...] [-m mode] [-o keymode] [-s keysize] [-a algorithm] [-c config_file] [file ...] -g, --openpgp Use the OpenPGP (RFC2440) file format. --no-openpgp Use the native (mcrypt) file format. --openpgp-z INTEGER Sets the compression level for openpgp packets (0 disables). -d, --decrypt decrypts. -s, --keysize INTEGER Set the algorithm's key size (in bytes). -o, --keymode KEYMODE Specify the keyword mode. Use the --list-keymodes parameter to view all modes. -f, --keyfile FILE Specify the file to read the keyword from. -c, --config FILE Use configuration file FILE. -a, --algorithm ALGORITHM Specify the encryption and decryption algorithm. Use the --list parameter to see the supported algorithms. --algorithms-directory DIRECTORY Set the algorithms directory. -m, --mode MODE Specify the encryption and decryption mode. Use the --list parameter to see the supported modes. --modes-directory DIRECTORY Set the modes directory. -h, --hash HASH Specify the hash algorithm to be used. Use the --list-hash parameter to view the hash algorithms. -k, --key KEY1 KEY2...KEYN Specify the key(s) --noiv Do not use an IV. -b, --bare Do not keep algorithm information in the encrypted file. -z, --gzip Use gzip to compress files before encryption. -p, --bzip2 Use bzip2 to compress files before encryption. --flush Immediately flush the output -l, --doublecheck Double check passwords. -u, --unlink Unlink the input file after encryption or decryption. --nodelete Do not delete the output file if decryption failed. -t, --time Prints timing information. -F, --force Forces output to stdout. --echo Echo asterisks when entering the password. -r, --random Use real random data (if your system supports it). --list Prints a list of the supported algorithms and modes. --list-keymodes Prints a list of the supported key modes. --list-hash Prints a list of the supported hash algorithms. -V, --verbose More information is displayed. -q, --quiet Suppress some non critical warnings. --help Prints this help -v, --version Prints the version number -L, --license Displays license information. Report bugs to mcrypt-dev@lists.hellug.gr.