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#!/usr/bin/env bash
# +---------------------------------------------------------------------------------------------------+
# | Title : ssh-keyinfo |
# | |
# | Description : Prints keys in several formats |
# | |
# | Author : Sven Wick <sven.wick@gmx.de> |
# | URL : https://github.com/vaporup/ssh-tools |
# | |
# +---------------------------------------------------------------------------------------------------+
# shellcheck disable=SC2207
#
# Usage/Help message
#
function usage() {
cat << EOF
Usage: ${0##*/} FILE [...]
Examples:
${0##*/} ~/.ssh/id_rsa.pub
${0##*/} ~/.ssh/*.pub
EOF
}
if [[ -z $1 || $1 == "--help" ]]; then
usage
exit 1
fi
fingerprint_hashes=( md5 sha256 )
function get_fingerprints () {
hash_type=$1
key_file=$2
ssh-keygen -E "${hash_type}" -qlf "${key_file}" | while IFS= read -r line; do
key_data=( $(printf '%s\n' "${line}") )
key_size=${key_data[0]}
key_hash=${key_data[1]}
#key_comment=${key_data[2]}
key_type=${key_data[-1]}
key_hash_type="${key_hash%%:*}"
key_hash_data="${key_hash#*:}"
printf "%10s%6s%8s %-50s %s\n" "${key_type}" "${key_size}" "${key_hash_type}" "${key_hash_data}" "${key_file}"
done
}
KEYS=( "$@" )
for KEY in "${KEYS[@]}"; do
for fingerprint_hash in "${fingerprint_hashes[@]}"; do
get_fingerprints "${fingerprint_hash}" "${KEY}"
done
done
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