ASCII encoding
gpg --enarmor < filename.bin > filename.txt
gpg --dearmor < filename.txt > filename.bin
Alternatives to md5sum
gpg --print-md sha1 filename
gpg --print-md sha1 *.txt
gpg --print-md md5 filename
gpg --print-md sha512 filename
Generate a secure password
gpg --gen-random 1 16 | gpg --enarmor | sed -n 5p
Encrypt a tarball
tar -cf - these files here | gpg -c > these-files-here.tgp
Decrypt a tarball
gpg < these-files-here.tgp | tar -xvf -
Symetric encrypting using a file containing the password
gpg --passphrase-fd 3 -c 3< passphrase.txt < filename.txt > filename.gpg
Symetric decrypting using a file containing a password
gpg --passphrase-fd 3 3< passphrase.txt < filename.gpg > filename.txt
NOTE: To suppress the warning about missing MDC integrity protection, use
--no-mdc-warning
NOTE: To supress all messages and just output the decrypted content
gpg --batch --passphrase-fd 3 3< passfile.txt <filename.gpg 2>/dev/null
NOTE: The following command, as sometimes given, has a problem.
cat passphrase.txt | gpg --passphrase-fd 0 -c < filename.txt > filename.gpg
The stdin (file descriptor 0) of the gpg process is filename txt,
rather than passphrase.txt, so the (intended) passphrase is never actually used!
Mail the encrypted file
gpg --passphrase-fd 3 -ac -o - 3< passphrase.txt < filename.txt | mail user@example.com
|
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| Warning: This is a Debian centric site and MAY contain peanuts. | |
| Many thanks to Debra Lynn and Ian Murdock for making Debian possible | |
| First created Nov 19, 2010 ~ Last revised November 25, 2010 |
