pgp2
PGP Stands for Pretty Good Privacy and gpg is the Linux program that implements the standard
Basics of PGP
Use GPG on linux
gpg --help
https://unix.stackexchange.com/questions/339077/set-default-key-in-gpg-for-signing
List keys
# List public keys you have stored (yours and other people's keys)
gpg --list-keys
# List private keys (generally only your own)
gpg --list-secret-keys
Generate a key
gpg --gen-key
Backup a private key
gpg --list-secret-keys
# Replace XXXXXXXX with your hexadecimal key ID
gpg --export-secret-keys --armor XXXXXXXX > ./my-priv-gpg-key.asc
# Omitting the --armor flag will give you binary output instead of ASCII
# which would result in a slightly smaller file but the ASCII
# formatted (armored) can be printed physically, is human readable,
# and transfered digitally easier.
# Both formats can be imported back in to GPG later
Restore private key
gpg --import ./my-priv-gpg-key.asc
Sign something
Encrypt something for someone else
gpg --sign --armor --recipient paulmullins@protonmail.com --encrypt message.txt
# --output File.gpg
Decrypt something from someone else
gpg -d EncryptedFile.asc
Delete keys
# Private keys
gpg --delete-secret-keys XXXXXXXX
# Public keys
gpg --delete-keys XXXXXXXX
Learning PGP
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Create a pgp key
- gpg --gen-key
- gpg --full-generate-key
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Export ones public key
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gpg --export person@email.com > pubkey.gpg
- gpg --armor --export person@email.com > pubkey.gpg
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Create the revocation certificate
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gpg --gen-revoke person@email.com
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--armor
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exports to text
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List keys
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gpg --list-keys
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How to import a pgp key
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gpg --import someonesgpgkey.asc
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.asc for text encoded, .gpg for binary files
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.asc when using --armored uses ascii
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How to get a gpg key
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gpg --fingerprint uid
- gpg --recv-keys 00xABCDEFGH
- gpg --import pubkey.gpg
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gpg --list-sigs
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List keys with signitures
- gpg --delete-key uid
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xxd, a hex viewer
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file, a linux command for telling you what kind of file a file is
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What is gpg-agent