SubjectAltNameがCSRで表示されないのはなぜですか？
生成されたCSRにSubjectAltNameが含まれていますか？openssl.cnfファイルを構成して拡張機能をサポートしています。CSRをダンプすると、SubjectAltNameではなく、サブジェクトが利用可能であることがわかります
これはCSRがどのように生成されるかです：
openssl req -new -sha256 -key ./private.key -out ./cert.csr -config ./openssl.cnf
使用したCSRの情報を表示するには：
openssl req -noout -text -in cert.csr
出力は
bash:/home/ubuntu# openssl req -noout -text -in cert.csr
Certificate Request:
Data:
Version: 0 (0x0)
Subject: C=sd, ST=sd, O=Internet Widgits Pty Ltd
Subject Public Key Info:
Public Key Algorithm: rsaEncryption
Public-Key: (3072 bit)
Modulus:
00:ae:6f:5d:75:f6:7a:af:2f:af:2b:39:dc:f7:b6:
d0:61:3d:49:f7:50:a2:a6:d1:99:d8:ce:a6:24:87:
1f:4e:ad:02:58:c9:34:12:78:22:f3:99:29:69:c6:
66:78:06:4e:bc:f6:e1:f6:f6:bb:f6:52:97:a4:14:
d7:9d:51:03:07:20:5d:10:88:35:db:32:7a:14:9c:
ea:e3:55:02:7a:20:bc:3c:24:c5:db:e8:82:12:c5:
16:78:cb:fa:0f:79:02:30:f3:23:c1:6b:55:e1:c7:
06:78:30:ac:4c:63:6e:74:5d:28:58:69:20:92:90:
a2:3c:d3:ad:20:c5:64:e3:22:4c:8a:e0:ad:04:60:
2d:c0:3f:d9:05:84:9b:53:1f:17:ac:9e:49:48:68:
08:c6:1d:c5:fe:df:28:64:b1:6d:15:f1:90:c0:4f:
fe:52:c1:8e:2f:d6:20:81:84:db:ed:43:6b:a7:8c:
37:58:a1:7a:fb:a9:4a:80:be:f0:27:d4:4b:13:ac:
56:74:6e:5d:0d:a0:09:8d:96:89:92:8f:b0:af:07:
d8:92:6b:ea:09:15:f6:0c:68:24:30:33:7f:a3:d9:
e6:45:1b:95:aa:79:63:29:60:b2:2b:19:ed:ee:aa:
c7:5f:ce:eb:3c:62:1d:79:6a:20:ec:16:38:3b:d4:
06:04:db:7c:16:da:1b:cb:5c:67:ff:10:69:03:3e:
cd:ee:94:50:45:f4:5c:bb:3b:61:41:fb:00:56:18:
8c:76:09:37:b0:40:53:85:12:8e:36:a9:58:0f:4d:
72:82:a4:79:85:27:2f:36:1e:21:53:ba:f4:23:75:
f1:f6:8b:24:30:d2:e7:47:77:f3:82:6c:73:8d:d4:
d4:ad:af:91:a7:4d:e5:66:38:6c:e1:d1:5f:cb:b8:
59:7f:26:49:80:8f:2f:f6:24:02:4d:92:b3:e4:bd:
ef:e7:69:02:7c:a5:cf:cc:39:ca:c8:42:6c:5f:3e:
77:9c:c1:9a:7b:e4:61:8c:20:eb
Exponent: 65537 (0x10001)
Attributes:
a0:00
Signature Algorithm: sha256WithRSAEncryption
0c:ef:3a:db:29:88:f6:c0:ce:f2:67:ba:61:35:3e:5f:6a:5a:
2b:85:5f:e1:48:60:60:cb:96:77:8d:30:3b:fe:34:02:4c:04:
78:a0:d3:ec:df:6e:43:02:92:ae:5c:6f:3c:60:fa:b7:36:d7:
bc:d2:4b:1b:5d:61:67:d1:09:3d:6c:ee:56:81:cd:14:be:c9:
33:b9:32:c7:eb:1d:59:f6:5c:98:6c:ae:92:27:94:15:d1:74:
0e:55:8f:2f:9c:6e:9f:85:80:c7:b6:d7:5b:a1:41:82:f4:a8:
73:08:de:45:5f:76:23:60:71:81:f4:ed:e0:cf:f1:14:d4:1c:
a6:c5:f9:a4:b6:e5:d6:01:01:7c:6a:3d:aa:a2:87:25:7c:c5:
e2:d2:0a:12:83:33:65:71:dd:43:7e:35:50:f9:99:77:72:8c:
56:5a:d7:37:cb:a1:ea:87:a9:5f:a9:9d:c7:ae:35:59:85:02:
3e:bd:ae:5e:c7:7a:95:31:bf:b2:0d:c8:0c:d9:45:6e:29:02:
2a:6b:cd:5e:73:b9:31:7a:3e:95:c1:28:f7:0b:f5:26:36:eb:
f4:ac:cc:1d:ef:01:ee:fd:a1:8b:eb:bc:f4:46:9d:42:1e:6f:
81:2f:7a:fc:90:9e:20:24:c1:79:e9:85:04:cb:23:f4:8a:8e:
70:33:48:50:dd:0a:30:00:bf:71:7e:15:31:23:dc:a7:b2:92:
dd:37:d9:83:b5:1b:3c:84:17:ce:49:17:04:2b:6d:0a:7c:51:
fa:e8:d6:97:a8:c1:96:6c:eb:c6:f1:2f:69:27:b8:c2:75:fc:
f7:5b:d2:b8:bf:e6:d9:da:6d:3f:de:da:27:46:4d:3f:6a:b0:
f8:b9:1a:cf:3c:29:67:7f:c4:be:bd:c1:37:db:cd:ae:d5:27:
d3:2d:bc:71:ed:f1:d6:b5:bd:9b:ef:8b:08:c4:d2:c4:ef:ca:
61:d2:c0:19:04:26:07:02:d3:39:56:57:05:48:a9:3d:d9:40:
f6:2f:67:df:dd:55
私のopenssl.cnfファイル設定alt_names有効：
HOME = .
RANDFILE = $ENV::HOME/.rnd
oid_section = new_oids
[ new_oids ]
tsa_policy1 = 1.2.3.4.1
tsa_policy2 = 1.2.3.4.5.6
tsa_policy3 = 1.2.3.4.5.7
[ ca ]
default_ca = CA_default
[ CA_default ]
dir = ./demoCA # Where everything is kept
certs = $dir/certs # Where the issued certs are kept
crl_dir = $dir/crl # Where the issued crl are kept
database = $dir/index.txt # database index file.
#unique_subject = no # Set to 'no' to allow creation of
# several ctificates with same subject.
new_certs_dir = $dir/newcerts # default place for new certs.
certificate = $dir/cacert.pem # The CA certificate
serial = $dir/serial # The current serial number
crlnumber = $dir/crlnumber # the current crl number
# must be commented out to leave a V1 CRL
crl = $dir/crl.pem # The current CRL
private_key = $dir/private/cakey.pem# The private key
RANDFILE = $dir/private/.Rand # private random number file
x509_extensions = usr_cert # The extentions to add to the cert
# Comment out the following two lines for the "traditional"
# (and highly broken) format.
name_opt = ca_default # Subject Name options
cert_opt = ca_default # Certificate field options
# Extension copying option: use with caution.
copy_extensions = copy
default_days = 365 # how long to certify for
default_crl_days= 30 # how long before next CRL
default_md = default # use public key default MD
preserve = no # keep passed DN ordering
# A few difference way of specifying how similar the request should look
# For type CA, the listed attributes must be the same, and the optional
# and supplied fields are just that :-)
policy = policy_match
# For the CA policy
[ policy_match ]
countryName = match
stateOrProvinceName = match
organizationName = match
organizationalUnitName = optional
commonName = supplied
emailAddress = optional
[ policy_anything ]
countryName = optional
stateOrProvinceName = optional
localityName = optional
organizationName = optional
organizationalUnitName = optional
commonName = supplied
emailAddress = optional
####################################################################
[ req ]
default_bits = 2048
default_keyfile = privkey.pem
distinguished_name = req_distinguished_name
attributes = req_attributes
x509_extensions = v3_ca # The extentions to add to the self signed cert
# Passwords for private keys if not present they will be prompted for
# input_password = secret
# output_password = secret
# This sets a mask for permitted string types. There are several options.
# default: PrintableString, T61String, BMPString.
# pkix : PrintableString, BMPString (PKIX recommendation before 2004)
# utf8only: only UTF8Strings (PKIX recommendation after 2004).
# nombstr : PrintableString, T61String (no BMPStrings or UTF8Strings).
# MASK:XXXX a literal mask value.
# WARNING: ancient versions of Netscape crash on BMPStrings or UTF8Strings.
string_mask = utf8only
# req_extensions = v3_req # The extensions to add to a certificate request
[ req_distinguished_name ]
countryName = Country Name (2 letter code)
countryName_default = AU
countryName_min = 2
countryName_max = 2
stateOrProvinceName = State or Province Name (full name)
stateOrProvinceName_default = Some-State
localityName = Locality Name (eg, city)
0.organizationName = Organization Name (eg, company)
0.organizationName_default = Internet Widgits Pty Ltd
# we can do this but it is not needed normally :-)
#1.organizationName = Second Organization Name (eg, company)
#1.organizationName_default = World Wide Web Pty Ltd
organizationalUnitName = Organizational Unit Name (eg, section)
#organizationalUnitName_default =
commonName = Common Name (e.g. server FQDN or YOUR name)
commonName_max = 64
emailAddress = Email Address
emailAddress_max = 64
# SET-ex3 = SET extension number 3
[ req_attributes ]
challengePassword = A challenge password
challengePassword_min = 4
challengePassword_max = 20
unstructuredName = An optional company name
[ usr_cert ]
# These extensions are added when 'ca' signs a request.
# This goes against PKIX guidelines but some CAs do it and some software
# requires this to avoid interpreting an end user certificate as a CA.
basicConstraints=CA:FALSE
nsComment = "OpenSSL Generated Certificate"
# PKIX recommendations harmless if included in all certificates.
subjectKeyIdentifier=hash
authorityKeyIdentifier=keyid,issuer
[ v3_req ]
# Extensions to add to a certificate request
basicConstraints = CA:FALSE
keyUsage = nonRepudiation, digitalSignature, keyEncipherment
[ v3_ca ]
subjectAltName = @alternate_names
keyUsage = digitalSignature, keyEncipherment
subjectKeyIdentifier=hash
authorityKeyIdentifier=keyid:always,issuer
# This is what PKIX recommends but some broken software chokes on critical
# extensions.
#basicConstraints = critical,CA:true
# So we do this instead.
basicConstraints = CA:true
[ crl_ext ]
# CRL extensions.
# Only issuerAltName and authorityKeyIdentifier make any sense in a CRL.
# issuerAltName=issuer:copy
authorityKeyIdentifier=keyid:always
[ proxy_cert_ext ]
# These extensions should be added when creating a proxy certificate
# This goes against PKIX guidelines but some CAs do it and some software
# requires this to avoid interpreting an end user certificate as a CA.
basicConstraints=CA:FALSE
nsComment = "OpenSSL Generated Certificate"
# PKIX recommendations harmless if included in all certificates.
subjectKeyIdentifier=hash
authorityKeyIdentifier=keyid,issuer
proxyCertInfo=critical,language:id-ppl-anyLanguage,pathlen:3,policy:foo
[ tsa ]
default_tsa = tsa_config1 # the default TSA section
[ tsa_config1 ]
# These are used by the TSA reply generation only.
dir = ./demoCA # TSA root directory
serial = $dir/tsaserial # The current serial number (mandatory)
crypto_device = builtin # OpenSSL engine to use for signing
signer_cert = $dir/tsacert.pem # The TSA signing certificate
# (optional)
certs = $dir/cacert.pem # Certificate chain to include in reply
# (optional)
signer_key = $dir/private/tsakey.pem # The TSA private key (optional)
default_policy = tsa_policy1 # Policy if request did not specify it
# (optional)
other_policies = tsa_policy2, tsa_policy3 # acceptable policies (optional)
digests = md5, sha1 # Acceptable message digests (mandatory)
accuracy = secs:1, millisecs:500, microsecs:100 # (optional)
accuracy = secs:1, millisecs:500, microsecs:100 # (optional)
clock_precision_digits = 0 # number of digits after dot. (optional)
ordering = yes # Is ordering defined for timestamps?
# (optional, default: no)
tsa_name = yes # Must the TSA name be included in the reply?
# (optional, default: no)
ess_cert_id_chain = no # Must the ESS cert id chain be included?
# (optional, default: no)
[ alternate_names ]
DNS.1 = test.xyz.com
@StackzOfZtuffが示すように、問題は、openSSLにSANをCSRに含めるように指示していないことです。
そうするためのガイドは見つけることができます ここ 、そして基本的に行うことを提案します：
[ req ]
default_bits = 1024
default_keyfile = privkey.pem
distinguished_name = req_distinguished_name
req_extensions = req_ext # The extentions to add to the self signed cert
<...snip....>
[ req_ext ]
subjectAltName = @alt_names
[alt_names]
DNS.1 = test.domain.com
DNS.2 = other.domain.com
DNS.3 = www.domain.net
あなたはそれを入れます（そして適切なreq_distinguished_name情報）をreq.confファイルに入れてから、openssl req -new -nodes -out myreq.csr -config req.conf。
この作業を行う上で重要な点は次のとおりです。
- openSSLは
[req]CSR生成時のセクション [req]セクションには、いくつかのreq_extensions、SANフィールドを含みます。
SAN CSRに必要なのは、CAが実際にそれを尊重している場合のみですが、これはそれほど一般的ではありません（ただし、私はあまり知らないかもしれません）。