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|
#! /bin/bash
#
# Copyright 2016-2021 The OpenSSL Project Authors. All Rights Reserved.
# Copyright (c) 2016 Viktor Dukhovni <openssl-users@dukhovni.org>.
# All rights reserved.
#
# Licensed under the Apache License 2.0 (the "License"). You may not use
# this file except in compliance with the License. You can obtain a copy
# in the file LICENSE in the source distribution or at
# https://www.openssl.org/source/license.html
# This file is dual-licensed and is also available under other terms.
# Please contact the author.
# 100 years should be enough for now
if [ -z "$DAYS" ]; then
DAYS=36525
fi
if [ -z "$OPENSSL_SIGALG" ]; then
OPENSSL_SIGALG=sha256
fi
if [ -z "$REQMASK" ]; then
REQMASK=utf8only
fi
stderr_onerror() {
(
err=$("$@" >&3 2>&1) || {
printf "%s\n" "$err" >&2
exit 1
}
) 3>&1
}
key() {
local key=$1; shift
local alg=rsa
if [ -n "$OPENSSL_KEYALG" ]; then
alg=$OPENSSL_KEYALG
fi
local bits=2048
if [ -n "$OPENSSL_KEYBITS" ]; then
bits=$OPENSSL_KEYBITS
fi
if [ ! -f "${key}.pem" ]; then
args=(-algorithm "$alg")
case $alg in
rsa) args=("${args[@]}" -pkeyopt rsa_keygen_bits:$bits );;
ec) args=("${args[@]}" -pkeyopt "ec_paramgen_curve:$bits")
args=("${args[@]}" -pkeyopt ec_param_enc:named_curve);;
dsa) args=(-paramfile "$bits");;
ed25519) ;;
ed448) ;;
*) printf "Unsupported key algorithm: %s\n" "$alg" >&2; return 1;;
esac
stderr_onerror \
openssl genpkey "${args[@]}" -out "${key}.pem"
fi
}
# Usage: $0 req keyname dn1 dn2 ...
req() {
local key=$1; shift
key "$key"
local errs
stderr_onerror \
openssl req -new -"${OPENSSL_SIGALG}" -key "${key}.pem" \
-config <(printf "string_mask=%s\n[req]\n%s\n%s\n[dn]\n" \
"$REQMASK" "prompt = no" "distinguished_name = dn"
for dn in "$@"; do echo "$dn"; done)
}
req_nocn() {
local key=$1; shift
key "$key"
stderr_onerror \
openssl req -new -"${OPENSSL_SIGALG}" -subj / -key "${key}.pem" \
-config <(printf "[req]\n%s\n[dn]\nCN_default =\n" \
"distinguished_name = dn")
}
cert() {
local cert=$1; shift
local exts=$1; shift
stderr_onerror \
openssl x509 -req -"${OPENSSL_SIGALG}" -out "${cert}.pem" \
-extfile <(printf "%s\n" "$exts") "$@"
}
genroot() {
local cn=$1; shift
local key=$1; shift
local cert=$1; shift
local bcon="basicConstraints = critical,CA:true"
local ku="keyUsage = keyCertSign,cRLSign"
local skid="subjectKeyIdentifier = hash"
local akid="authorityKeyIdentifier = keyid"
exts=$(printf "%s\n%s\n%s\n" "$bcon" "$ku" "$skid" "$akid")
for eku in "$@"
do
exts=$(printf "%s\nextendedKeyUsage = %s\n" "$exts" "$eku")
done
csr=$(req "$key" "CN = $cn") || return 1
echo "$csr" |
cert "$cert" "$exts" -signkey "${key}.pem" -set_serial 1 -days "${DAYS}"
}
genca() {
local OPTIND=1
local purpose=
while getopts p: o
do
case $o in
p) purpose="$OPTARG";;
*) echo "Usage: $0 genca [-p EKU] cn keyname certname cakeyname cacertname" >&2
return 1;;
esac
done
shift $((OPTIND - 1))
local cn=$1; shift
local key=$1; shift
local cert=$1; shift
local cakey=$1; shift
local cacert=$1; shift
local bcon="basicConstraints = critical,CA:true"
local ku="keyUsage = keyCertSign,cRLSign"
local skid="subjectKeyIdentifier = hash"
local akid="authorityKeyIdentifier = keyid"
exts=$(printf "%s\n%s\n%s\n" "$bcon" "$ku" "$skid" "$akid")
if [ -n "$purpose" ]; then
exts=$(printf "%s\nextendedKeyUsage = %s\n" "$exts" "$purpose")
fi
if [ -n "$NC" ]; then
exts=$(printf "%s\nnameConstraints = %s\n" "$exts" "$NC")
fi
csr=$(req "$key" "CN = $cn") || return 1
echo "$csr" |
cert "$cert" "$exts" -CA "${cacert}.pem" -CAkey "${cakey}.pem" \
-set_serial 2 -days "${DAYS}" "$@"
}
gen_nonbc_ca() {
local cn=$1; shift
local key=$1; shift
local cert=$1; shift
local cakey=$1; shift
local cacert=$1; shift
local skid="subjectKeyIdentifier = hash"
local akid="authorityKeyIdentifier = keyid"
exts=$(printf "%s\n%s\n%s\n" "$skid" "$akid")
exts=$(printf "%s\nkeyUsage = %s\n" "$exts" "keyCertSign, cRLSign")
for eku in "$@"
do
exts=$(printf "%s\nextendedKeyUsage = %s\n" "$exts" "$eku")
done
csr=$(req "$key" "CN = $cn") || return 1
echo "$csr" |
cert "$cert" "$exts" -CA "${cacert}.pem" -CAkey "${cakey}.pem" \
-set_serial 2 -days "${DAYS}"
}
# Usage: $0 genpc keyname certname eekeyname eecertname pcext1 pcext2 ...
#
# Note: takes csr on stdin, so must be used with $0 req like this:
#
# $0 req keyname dn | $0 genpc keyname certname eekeyname eecertname pcext ...
genpc() {
local key=$1; shift
local cert=$1; shift
local cakey=$1; shift
local ca=$1; shift
exts=$(printf "%s\n%s\n%s\n%s\n" \
"subjectKeyIdentifier = hash" \
"authorityKeyIdentifier = keyid, issuer:always" \
"basicConstraints = CA:false" \
"proxyCertInfo = critical, @pcexts";
echo "[pcexts]";
for x in "$@"; do echo $x; done)
cert "$cert" "$exts" -CA "${ca}.pem" -CAkey "${cakey}.pem" \
-set_serial 2 -days "${DAYS}"
}
# Usage: $0 geneealt keyname certname cakeyname cacertname alt1 alt2 ...
#
# Note: takes csr on stdin, so must be used with $0 req like this:
#
# $0 req keyname dn | $0 geneealt keyname certname cakeyname cacertname alt ...
geneealt() {
local key=$1; shift
local cert=$1; shift
local cakey=$1; shift
local ca=$1; shift
exts=$(printf "%s\n%s\n%s\n%s\n" \
"subjectKeyIdentifier = hash" \
"authorityKeyIdentifier = keyid" \
"basicConstraints = CA:false" \
"subjectAltName = @alts";
echo "[alts]";
for x in "$@"; do echo $x; done)
cert "$cert" "$exts" -CA "${ca}.pem" -CAkey "${cakey}.pem" \
-set_serial 2 -days "${DAYS}"
}
genee() {
local OPTIND=1
local purpose=serverAuth
while getopts p: o
do
case $o in
p) purpose="$OPTARG";;
*) echo "Usage: $0 genee [-p EKU] cn keyname certname cakeyname cacertname" >&2
return 1;;
esac
done
shift $((OPTIND - 1))
local cn=$1; shift
local key=$1; shift
local cert=$1; shift
local cakey=$1; shift
local ca=$1; shift
exts=$(printf "%s\n%s\n%s\n%s\n%s\n[alts]\n%s\n" \
"subjectKeyIdentifier = hash" \
"authorityKeyIdentifier = keyid, issuer" \
"basicConstraints = CA:false" \
"extendedKeyUsage = $purpose" \
"subjectAltName = @alts" "DNS=${cn}")
csr=$(req "$key" "CN = $cn") || return 1
echo "$csr" |
cert "$cert" "$exts" -CA "${ca}.pem" -CAkey "${cakey}.pem" \
-set_serial 2 -days "${DAYS}" "$@"
}
geneeextra() {
local OPTIND=1
local purpose=serverAuth
while getopts p: o
do
case $o in
p) purpose="$OPTARG";;
*) echo "Usage: $0 geneeextra [-p EKU] cn keyname certname cakeyname cacertname extraext" >&2
return 1;;
esac
done
shift $((OPTIND - 1))
local cn=$1; shift
local key=$1; shift
local cert=$1; shift
local cakey=$1; shift
local ca=$1; shift
local extraext=$1; shift
exts=$(printf "%s\n%s\n%s\n%s\n%s\n%s\n[alts]\n%s\n" \
"subjectKeyIdentifier = hash" \
"authorityKeyIdentifier = keyid, issuer" \
"basicConstraints = CA:false" \
"extendedKeyUsage = $purpose" \
"subjectAltName = @alts"\
"$extraext" "DNS=${cn}")
csr=$(req "$key" "CN = $cn") || return 1
echo "$csr" |
cert "$cert" "$exts" -CA "${ca}.pem" -CAkey "${cakey}.pem" \
-set_serial 2 -days "${DAYS}" "$@"
}
geneenocsr() {
local OPTIND=1
local purpose=serverAuth
while getopts p: o
do
case $o in
p) purpose="$OPTARG";;
*) echo "Usage: $0 geneenocsr [-p EKU] cn certname cakeyname cacertname" >&2
return 1;;
esac
done
shift $((OPTIND - 1))
local cn=$1; shift
local cert=$1; shift
local cakey=$1; shift
local ca=$1; shift
exts=$(printf "%s\n%s\n%s\n%s\n%s\n[alts]\n%s\n" \
"subjectKeyIdentifier = hash" \
"authorityKeyIdentifier = keyid, issuer" \
"basicConstraints = CA:false" \
"extendedKeyUsage = $purpose" \
"subjectAltName = @alts" "DNS=${cn}")
cert "$cert" "$exts" -CA "${ca}.pem" -CAkey "${cakey}.pem" \
-set_serial 2 -days "${DAYS}" "$@"
}
genss() {
local cn=$1; shift
local key=$1; shift
local cert=$1; shift
exts=$(printf "%s\n%s\n%s\n%s\n%s\n[alts]\n%s\n" \
"subjectKeyIdentifier = hash" \
"authorityKeyIdentifier = keyid, issuer" \
"basicConstraints = CA:false" \
"extendedKeyUsage = serverAuth" \
"subjectAltName = @alts" "DNS=${cn}")
csr=$(req "$key" "CN = $cn") || return 1
echo "$csr" |
cert "$cert" "$exts" -signkey "${key}.pem" \
-set_serial 1 -days "${DAYS}" "$@"
}
gennocn() {
local key=$1; shift
local cert=$1; shift
csr=$(req_nocn "$key") || return 1
echo "$csr" |
cert "$cert" "" -signkey "${key}.pem" -set_serial 1 -days -1 "$@"
}
genct() {
local OPTIND=1
local purpose=serverAuth
while getopts p: o
do
case $o in
p) purpose="$OPTARG";;
*) echo "Usage: $0 genct [-p EKU] cn keyname certname cakeyname cacertname ctlogkey" >&2
return 1;;
esac
done
shift $((OPTIND - 1))
local cn=$1; shift
local key=$1; shift
local cert=$1; shift
local cakey=$1; shift
local ca=$1; shift
local logkey=$1; shift
exts=$(printf "%s\n%s\n%s\n%s\n%s\n%s\n[alts]\n%s\n" \
"subjectKeyIdentifier = hash" \
"authorityKeyIdentifier = keyid, issuer" \
"basicConstraints = CA:false" \
"extendedKeyUsage = $purpose" \
"1.3.6.1.4.1.11129.2.4.3 = critical,ASN1:NULL"\
"subjectAltName = @alts" "DNS=${cn}")
csr=$(req "$key" "CN = $cn") || return 1
echo "$csr" |
cert "$cert" "$exts" -CA "${ca}.pem" -CAkey "${cakey}.pem" \
-set_serial 2 -days "${DAYS}" "$@"
cat ${cert}.pem ${ca}.pem > ${cert}-chain.pem
go run github.com/google/certificate-transparency-go/ctutil/sctgen \
--log_private_key ${logkey}.pem \
--timestamp="2020-01-01T00:00:00Z" \
--cert_chain ${cert}-chain.pem \
--tls_out ${cert}.tlssct
rm ${cert}-chain.pem
filesize=$(wc -c <${cert}.tlssct)
exts=$(printf "%s\n%s\n%s\n%s\n%s%04X%04X%s\n%s\n[alts]\n%s\n" \
"subjectKeyIdentifier = hash" \
"authorityKeyIdentifier = keyid, issuer" \
"basicConstraints = CA:false" \
"extendedKeyUsage = $purpose" \
"1.3.6.1.4.1.11129.2.4.2 = ASN1:FORMAT:HEX,OCT:" $((filesize+2)) $filesize `xxd -p ${cert}.tlssct | tr -d '\n'` \
"subjectAltName = @alts" "DNS=${cn}")
echo "$csr" |
cert "$cert" "$exts" -CA "${ca}.pem" -CAkey "${cakey}.pem" \
-set_serial 2 -days "${DAYS}" "$@"
}
"$@"
|
