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-rwxr-xr-xroles/common/files/usr/local/bin/genkeypair.sh5
1 files changed, 4 insertions, 1 deletions
diff --git a/roles/common/files/usr/local/bin/genkeypair.sh b/roles/common/files/usr/local/bin/genkeypair.sh
index 45e2181..01b279a 100755
--- a/roles/common/files/usr/local/bin/genkeypair.sh
+++ b/roles/common/files/usr/local/bin/genkeypair.sh
@@ -30,40 +30,41 @@ hash=
force=0
config=
pubkey=pubkey.pem
privkey=privkey.pem
dns=
ou=
cn=
usage=
mode=
owner=
group=
usage() {
cat >&2 <<- EOF
Usage: $0 command [OPTIONS]
Command:
x509: generate a self-signed X.509 server certificate
csr: generate a Certificate Signing Request
dkim: generate a private key (to use for DKIM signing)
+ keypair: generate a key pair
Options:
-t type: key type (default: rsa)
-b bits: key length or EC curve (default: 2048 for RSA, 1024 for DSA, secp224r1 for ECDSA)
-h digest: digest algorithm
--ou: organizational Unit Name; can be repeated
--cn: common Name (default: \$(hostname --fqdn)
--dns: hostname for AltName; can be repeated
-f: force; can be repeated (0: don't overwrite, default;
1: reuse private key if it exists;
2: overwrite both keys if they exist)
--config: configuration file
--pubkey: public key file (default: pubkey.pem)
--privkey: private key file (default: privkey.pem)
--usage: key usage (default: digitalSignature,keyEncipherment,keyCertSign)
--mode: set privkey's permission mode (default: 0600)
--owner: set privkey's owner (default: the process' current owner)
--group: set privkey's group (default: the process' current group)
Return values:
@@ -71,41 +72,41 @@ usage() {
1 The public or private key file exists, and -f is not set
2 The key generation failed
EOF
}
dkiminfo() {
echo "Add the following TXT record to your DNS zone:"
echo "${cn:-$(date +%Y%m%d)}._domainkey\tIN\tTXT ( "
# See https://tools.ietf.org/html/rfc4871#section-3.6.1
# t=s: the "i=" domain in signature headers MUST NOT be a subdomain of "d="
# s=email: limit DKIM signing to email
openssl pkey -pubout <"$privkey" | sed '/^--.*--$/d' \
| { echo -n "v=DKIM1; k=$type; t=s; s=email; p="; tr -d '\n'; } \
| fold -w 250 \
| { sed 's/.*/\t"&"/'; echo ' )'; }
}
[ $# -gt 0 ] || { usage; exit 2; }
cmd="$1"; shift
case "$cmd" in
- x509|csr|dkim) ;;
+ x509|csr|dkim|keypair) ;;
*) echo "Unrecognized command: $cmd" >&2; exit 2
esac
nou=1
while [ $# -gt 0 ]; do
case "$1" in
-t) shift; type="$1";;
-t*) type="${1#-t}";;
-b) shift; bits="$1";;
-b*) bits="${1#-b}";;
-h) shift; hash="$1";;
-h*) hash="${1#-h}";;
--dns=?*) dns="${dns:+$dns, }DNS:${1#--dns=}";;
--cn=?*) cn="${1#--cn=}";;
--ou=?*) ou="${ou:+$ou\n}$nou.organizationalUnitName = ${1#--ou=}"
nou=$(( 1 + $nou ));;
@@ -184,21 +185,23 @@ if [ -s "$privkey" -a $force -eq 0 ]; then
exit 1
elif [ ! -s "$privkey" -o $force -ge 2 ]; then
install --mode="${mode:-0600}" ${owner:+--owner="$owner"} ${group:+--group="$group"} /dev/null "$privkey" || exit 2
openssl $genkey -rand /dev/urandom $genkeyargs >"$privkey" || exit 2
[ "$cmd" = dkim ] && { dkiminfo; exit; }
fi
if [ "$cmd" = x509 -a "$pubkey" = "$privkey" ]; then
pubkey=$(mktemp)
openssl req -config "$config" -new -x509 ${hash:+-$hash} -days 3650 -key "$privkey" >"$pubkey" || exit 2
cat "$pubkey" >>"$privkey" || exit 2
rm -f "$pubkey"
elif [ "$cmd" = x509 -o "$cmd" = csr ]; then
if [ -s "$pubkey" -a $force -eq 0 ]; then
echo "Error: public key exists: $pubkey" >&2
exit 1
else
[ "$cmd" = x509 ] && x509=-x509 || x509=
openssl req -config "$config" -new $x509 ${hash:+-$hash} -days 3650 -key "$privkey" >"$pubkey" || exit 2
fi
+elif [ "$cmd" = keypair -a "$pubkey" ]; then
+ openssl pkey -pubout <"$privkey" >"$pubkey"
fi