# apt-get install mcrypt
# crypt <secret.txt> secreted.txt
Unix crypt(1) emulation program using mcrypt(1).
Use crypt -h for more help.
Enter the passphrase (maximum of 512 characters)
Please use a combination of upper and lower case letters and numbers.
Enter passphrase:
Enter passphrase:
Stdin was encrypted.
# crypt www.groad.net < secret.txt > secreted.txt
# crypt www.groad.net -d < secreted.txt > secret.txt
Unix crypt(1) emulation program using mcrypt(1).
Use crypt -h for more help.
Warning: It is insecure to specify keywords in the command line
Stdin was encrypted.
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