I need to encrypt a file on a Windows 7 machine, and then decrypt it on an Ubuntu machine. What is the simplest way of doing this, preferably with tools that are likely to already be installed on the two machines. I have cygwin on the Windows machine if needed.
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I know its end of life, but I've yet to see anything that effectively replaces truecrypt. if your adversary is not a nation-state or large company engaged in industrial espionage, truecrypt 7.1a is probably still sufficient to your needs.– Frank ThomasCommented Jul 11, 2014 at 18:36
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2Zip it with a password.– Ƭᴇcʜιᴇ007Commented Jul 11, 2014 at 19:19
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@techie007 that's what I ended up doing– PurpleVermontCommented Jul 11, 2014 at 20:33
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2 Answers
OpenPGP using the GnuPG tools will likely be easiest. (GnuPG for Windows comes in both native and Cygwin forms.)
To encrypt with a password:
gpg --symmetric myfile.txt
To decrypt:
gpg --decrypt myfile.txt.gpg
answered Jul 11, 2014 at 18:23
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1The
--symmetricoption by default caches your password locally and you may want to clear it withgpg-connect-agent reloadagent /byeCommented Aug 10, 2018 at 21:41
I prefer and think that is more easy to do it using one zip archiever with pasword like winrar ow 7zip on windows, copy the file and decompress it in linux.