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lh9ed821d2023-04-07 01:36:19 -07001#! /bin/bash
2#
lh758261d2023-07-13 05:52:04 -07003# Copyright 2016-2023 The OpenSSL Project Authors. All Rights Reserved.
lh9ed821d2023-04-07 01:36:19 -07004# Copyright (c) 2016 Viktor Dukhovni <openssl-users@dukhovni.org>.
5# All rights reserved.
6#
7# Licensed under the OpenSSL license (the "License"). You may not use
8# this file except in compliance with the License. You can obtain a copy
9# in the file LICENSE in the source distribution or at
10# https://www.openssl.org/source/license.html
11
12# This file is dual-licensed and is also available under other terms.
13# Please contact the author.
14
15# 100 years should be enough for now
16if [ -z "$DAYS" ]; then
17 DAYS=36525
18fi
19
20if [ -z "$OPENSSL_SIGALG" ]; then
21 OPENSSL_SIGALG=sha256
22fi
23
24if [ -z "$REQMASK" ]; then
25 REQMASK=utf8only
26fi
27
28stderr_onerror() {
29 (
30 err=$("$@" >&3 2>&1) || {
31 printf "%s\n" "$err" >&2
32 exit 1
33 }
34 ) 3>&1
35}
36
37key() {
38 local key=$1; shift
39
40 local alg=rsa
41 if [ -n "$OPENSSL_KEYALG" ]; then
42 alg=$OPENSSL_KEYALG
43 fi
44
45 local bits=2048
46 if [ -n "$OPENSSL_KEYBITS" ]; then
47 bits=$OPENSSL_KEYBITS
48 fi
49
50 if [ ! -f "${key}.pem" ]; then
51 args=(-algorithm "$alg")
52 case $alg in
53 rsa) args=("${args[@]}" -pkeyopt rsa_keygen_bits:$bits );;
54 ec) args=("${args[@]}" -pkeyopt "ec_paramgen_curve:$bits")
55 args=("${args[@]}" -pkeyopt ec_param_enc:named_curve);;
56 dsa) args=(-paramfile "$bits");;
57 ed25519) ;;
58 ed448) ;;
59 *) printf "Unsupported key algorithm: %s\n" "$alg" >&2; return 1;;
60 esac
61 stderr_onerror \
62 openssl genpkey "${args[@]}" -out "${key}.pem"
63 fi
64}
65
66# Usage: $0 req keyname dn1 dn2 ...
67req() {
68 local key=$1; shift
69
70 key "$key"
71 local errs
72
73 stderr_onerror \
74 openssl req -new -"${OPENSSL_SIGALG}" -key "${key}.pem" \
75 -config <(printf "string_mask=%s\n[req]\n%s\n%s\n[dn]\n" \
76 "$REQMASK" "prompt = no" "distinguished_name = dn"
77 for dn in "$@"; do echo "$dn"; done)
78}
79
80req_nocn() {
81 local key=$1; shift
82
83 key "$key"
84 stderr_onerror \
85 openssl req -new -"${OPENSSL_SIGALG}" -subj / -key "${key}.pem" \
86 -config <(printf "[req]\n%s\n[dn]\nCN_default =\n" \
87 "distinguished_name = dn")
88}
89
90cert() {
91 local cert=$1; shift
92 local exts=$1; shift
93
94 stderr_onerror \
95 openssl x509 -req -"${OPENSSL_SIGALG}" -out "${cert}.pem" \
96 -extfile <(printf "%s\n" "$exts") "$@"
97}
98
99genroot() {
100 local cn=$1; shift
101 local key=$1; shift
102 local cert=$1; shift
103 local skid="subjectKeyIdentifier = hash"
104 local akid="authorityKeyIdentifier = keyid"
105
106 exts=$(printf "%s\n%s\n%s\n" "$skid" "$akid" "basicConstraints = critical,CA:true")
107 for eku in "$@"
108 do
109 exts=$(printf "%s\nextendedKeyUsage = %s\n" "$exts" "$eku")
110 done
111 csr=$(req "$key" "CN = $cn") || return 1
112 echo "$csr" |
113 cert "$cert" "$exts" -signkey "${key}.pem" -set_serial 1 -days "${DAYS}"
114}
115
116genca() {
117 local OPTIND=1
118 local purpose=
119
lh758261d2023-07-13 05:52:04 -0700120 while getopts p:c: o
lh9ed821d2023-04-07 01:36:19 -0700121 do
122 case $o in
123 p) purpose="$OPTARG";;
lh758261d2023-07-13 05:52:04 -0700124 c) certpol="$OPTARG";;
125 *) echo "Usage: $0 genca [-p EKU][-c policyoid] cn keyname certname cakeyname cacertname" >&2
lh9ed821d2023-04-07 01:36:19 -0700126 return 1;;
127 esac
128 done
129
130 shift $((OPTIND - 1))
131 local cn=$1; shift
132 local key=$1; shift
133 local cert=$1; shift
134 local cakey=$1; shift
135 local cacert=$1; shift
136 local skid="subjectKeyIdentifier = hash"
137 local akid="authorityKeyIdentifier = keyid"
138
139 exts=$(printf "%s\n%s\n%s\n" "$skid" "$akid" "basicConstraints = critical,CA:true")
140 if [ -n "$purpose" ]; then
141 exts=$(printf "%s\nextendedKeyUsage = %s\n" "$exts" "$purpose")
142 fi
143 if [ -n "$NC" ]; then
144 exts=$(printf "%s\nnameConstraints = %s\n" "$exts" "$NC")
145 fi
lh758261d2023-07-13 05:52:04 -0700146 if [ -n "$certpol" ]; then
147 exts=$(printf "%s\ncertificatePolicies = %s\n" "$exts" "$certpol")
148 fi
149
lh9ed821d2023-04-07 01:36:19 -0700150 csr=$(req "$key" "CN = $cn") || return 1
151 echo "$csr" |
152 cert "$cert" "$exts" -CA "${cacert}.pem" -CAkey "${cakey}.pem" \
153 -set_serial 2 -days "${DAYS}" "$@"
154}
155
156gen_nonbc_ca() {
157 local cn=$1; shift
158 local key=$1; shift
159 local cert=$1; shift
160 local cakey=$1; shift
161 local cacert=$1; shift
162 local skid="subjectKeyIdentifier = hash"
163 local akid="authorityKeyIdentifier = keyid"
164
165 exts=$(printf "%s\n%s\n%s\n" "$skid" "$akid")
166 exts=$(printf "%s\nkeyUsage = %s\n" "$exts" "keyCertSign, cRLSign")
167 for eku in "$@"
168 do
169 exts=$(printf "%s\nextendedKeyUsage = %s\n" "$exts" "$eku")
170 done
171 csr=$(req "$key" "CN = $cn") || return 1
172 echo "$csr" |
173 cert "$cert" "$exts" -CA "${cacert}.pem" -CAkey "${cakey}.pem" \
174 -set_serial 2 -days "${DAYS}"
175}
176
177# Usage: $0 genpc keyname certname eekeyname eecertname pcext1 pcext2 ...
178#
179# Note: takes csr on stdin, so must be used with $0 req like this:
180#
181# $0 req keyname dn | $0 genpc keyname certname eekeyname eecertname pcext ...
182genpc() {
183 local key=$1; shift
184 local cert=$1; shift
185 local cakey=$1; shift
186 local ca=$1; shift
187
188 exts=$(printf "%s\n%s\n%s\n%s\n" \
189 "subjectKeyIdentifier = hash" \
190 "authorityKeyIdentifier = keyid, issuer:always" \
191 "basicConstraints = CA:false" \
192 "proxyCertInfo = critical, @pcexts";
193 echo "[pcexts]";
194 for x in "$@"; do echo $x; done)
195 cert "$cert" "$exts" -CA "${ca}.pem" -CAkey "${cakey}.pem" \
196 -set_serial 2 -days "${DAYS}"
197}
198
199# Usage: $0 geneealt keyname certname eekeyname eecertname alt1 alt2 ...
200#
201# Note: takes csr on stdin, so must be used with $0 req like this:
202#
203# $0 req keyname dn | $0 geneealt keyname certname eekeyname eecertname alt ...
204geneealt() {
205 local key=$1; shift
206 local cert=$1; shift
207 local cakey=$1; shift
208 local ca=$1; shift
209
210 exts=$(printf "%s\n%s\n%s\n%s\n" \
211 "subjectKeyIdentifier = hash" \
212 "authorityKeyIdentifier = keyid" \
213 "basicConstraints = CA:false" \
214 "subjectAltName = @alts";
215 echo "[alts]";
216 for x in "$@"; do echo $x; done)
217 cert "$cert" "$exts" -CA "${ca}.pem" -CAkey "${cakey}.pem" \
218 -set_serial 2 -days "${DAYS}"
219}
220
221genee() {
222 local OPTIND=1
223 local purpose=serverAuth
224
225 while getopts p: o
226 do
227 case $o in
228 p) purpose="$OPTARG";;
229 *) echo "Usage: $0 genee [-p EKU] cn keyname certname cakeyname cacertname" >&2
230 return 1;;
231 esac
232 done
233
234 shift $((OPTIND - 1))
235 local cn=$1; shift
236 local key=$1; shift
237 local cert=$1; shift
238 local cakey=$1; shift
239 local ca=$1; shift
240
241 exts=$(printf "%s\n%s\n%s\n%s\n%s\n[alts]\n%s\n" \
242 "subjectKeyIdentifier = hash" \
243 "authorityKeyIdentifier = keyid, issuer" \
244 "basicConstraints = CA:false" \
245 "extendedKeyUsage = $purpose" \
246 "subjectAltName = @alts" "DNS=${cn}")
247 csr=$(req "$key" "CN = $cn") || return 1
248 echo "$csr" |
249 cert "$cert" "$exts" -CA "${ca}.pem" -CAkey "${cakey}.pem" \
250 -set_serial 2 -days "${DAYS}" "$@"
251}
252
253geneenocsr() {
254 local OPTIND=1
255 local purpose=serverAuth
256
257 while getopts p: o
258 do
259 case $o in
260 p) purpose="$OPTARG";;
261 *) echo "Usage: $0 genee [-p EKU] cn certname cakeyname cacertname" >&2
262 return 1;;
263 esac
264 done
265
266 shift $((OPTIND - 1))
267 local cn=$1; shift
268 local cert=$1; shift
269 local cakey=$1; shift
270 local ca=$1; shift
271
272 exts=$(printf "%s\n%s\n%s\n%s\n%s\n[alts]\n%s\n" \
273 "subjectKeyIdentifier = hash" \
274 "authorityKeyIdentifier = keyid, issuer" \
275 "basicConstraints = CA:false" \
276 "extendedKeyUsage = $purpose" \
277 "subjectAltName = @alts" "DNS=${cn}")
278 cert "$cert" "$exts" -CA "${ca}.pem" -CAkey "${cakey}.pem" \
279 -set_serial 2 -days "${DAYS}" "$@"
280}
281
282genss() {
283 local cn=$1; shift
284 local key=$1; shift
285 local cert=$1; shift
286
287 exts=$(printf "%s\n%s\n%s\n%s\n%s\n[alts]\n%s\n" \
288 "subjectKeyIdentifier = hash" \
289 "authorityKeyIdentifier = keyid, issuer" \
290 "basicConstraints = CA:false" \
291 "extendedKeyUsage = serverAuth" \
292 "subjectAltName = @alts" "DNS=${cn}")
293 csr=$(req "$key" "CN = $cn") || return 1
294 echo "$csr" |
295 cert "$cert" "$exts" -signkey "${key}.pem" \
296 -set_serial 1 -days "${DAYS}" "$@"
297}
298
299gennocn() {
300 local key=$1; shift
301 local cert=$1; shift
302
303 csr=$(req_nocn "$key") || return 1
304 echo "$csr" |
305 cert "$cert" "" -signkey "${key}.pem" -set_serial 1 -days -1 "$@"
306}
307
308"$@"