How to get public key from private in gpg without using local storage (under ~/.gpg)?
Look to Subj: How to get public key from private in gpg without using local storage (under ~/.gpg)?
This solut开发者_运维知识库ion does not satisfy requirements:
$ gpg --import priv.key $ gpg --export $KEYID >pub.key $ gpg --delete-secret-and-public-key $KEYID
I don't understand why you aren't happy with the solution you have already come up with, but if for some reason you really want to avoid messing with your personal keyrings, I can offer something else:
gtmp=$(mktemp -d)
gpg --homedir $gtmp --import key
gpg --homedir $gtmp --export key > pub.gpg
rm -rf $gtmp
Or as a convenient BASH function:
# Requires keyfile as 1st argument; optional 2nd argument is output file
gpg_priv_to_pub(){
g=$(mktemp -d)
infile=$1
[[ $# > 1 ]] && outfile=$2 || outfile=${1%.*}_pub.gpg
gpg --homedir $g --import "$infile" 2>/dev/null
KEYID=$(gpg --homedir $g -k --with-colons | awk -F: '/^pub/{print $5}')
gpg --homedir $g --export $KEYID > "$outfile"
rm -rf $g
echo "Public key $KEYID extracted from '$infile' and saved to '$outfile'"
}
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