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Linux / Unix: Cryptography Commands

Learn all about secure communication, data storage, commands that can be used to encrypt data and to create digital signatures under Max OS X, BSD, Linux, and Unix like operating systems (rss feed).

Install / Append SSH Key In A Remote Linux / UNIX Servers Authorized_keys

How do I install my SSH public key ~/.ssh/id_rsa.pub onto a remote Linux and UNIX server automatically from Linux workstation or Apple OS X laptop without using scp and/or copy & paste method?
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UNIX / Linux: PGP TarBall File Signature Keys Verification

I've downloaded open source software from the Internet. The download server also provided me the PGP signature file. How do I verify that signature (file.tar.gz.asc) file against downloaded software release (software.version.tar.gz) under Linux / UNIX operating systems?
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Linux / UNIX: Generate SSH Keys

How do I generate ssh keys under Linux / UNIX / Mac OS X and *BSD operating systems for remote login?
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