Not Before: Jun 10 10:02:48 2018 GMT [/text], コマンドライン上から実行するのは今のところ難しいですかね。 0. openSSL Key and Certificate. Change alt_names appropriately. 1. OpenSSL 1.1.1-pre7 (beta) 29 May 2018 1. When I inspect that CSR with openssl req -in key.csr -text I can see a corresponding section:. `openssl`: Subject Alternative Name. Now, if you want to include all those SANs, then the openssl.cnf you used to sign will have to have all those SANs already defined. Signature Algorithm: sha256WithRSAEncryption Openssl subject alternative name. 1a:10:ef Topic How to X509v3 Subject Alternative Name: DNS:my-project.site and Signature Algorithm: sha256WithRSAEncryption Generate the certificate openssl x509 -req \ -sha256 \ -days 3650 \ -in private.csr \ -signkey private.key \ -out IP.1 = 192.168.1.1 1. A SAN certificate is a term often used to refer to a multi-domain SSL certificate. There is a need to know how to create a simple, self-signed Subject Alternative Name(SAN) certificate for Symantec Messaging Gateway (SMG). Public Key Algorithm: rsaEncryption X509v3 Subject Alternative Name: Subject: C=JP, ST=Osaka, L=Osaka, O=Kaede, CN=kaede.jp The link I included talks about making a configuration file, which Validity Exponent: 65537 (0x10001) Signature Algorithm: sha256WithRSAEncryption SSL証明書のエントリをテキスト形式で見ると このような感じになっていると思います。大抵、証明書を設置するドメインを「←※」の箇所の CN= に書きますが、Chrome 58 以降、この CN= を評価しなくなったようです。 そのため、閲覧しているドメインが CN= に一致しても、証明書が検証できないとしてエラーになります。 SAN(Subject Alternative Name)フィールド を含むSSL証明書を作成する手順を作成します。 概要 IISのサーバー証明書作成でドメイン名を指定した証明書を作成した場合、Google Chromeではエラーが発生する場合があります。 場合があります。 Subject Alternative Names are a X509 Version 3 extension to allow an SSL certificate to specify multiple names that the certificate should match.SubjectAltName can contain email addresses, IP addresses, regular DNS host names, etc. Resolution. ####↑↑subjectAltName = @alt_names　を追記↑↑####, ####↓↓alt_names部分全て追記↓↓#### -newkey rsa:4096 -keyout server3.key -nodes -x509 -days 365 -out server3.csr \ subjectnames.txt, ホスト名を書く場合は「DNS」で、IPアドレスで書く場合は「IP」で指定します。ワイルドカード（*）も使用可能です。, 「X509v3 Subject Alternative Name」に、指定したsubjectAltNameが含まれるようになります。, ここで注意ですが、SAN拡張を含めた証明書は、元のSubjectを無視するようになります。このページで作成した証明書でいくと、Common Nameを「hoge.com」に Yes, you find and extract the common name (CN) from the certificate using openssl … This is a cert that will be accepted by every major browser (including chrome), so long as you install the certificate authority in the browser. [/text], サーバの証明書の作成は「openssl req」で実施 ECDSAで実施したい場合は「-newkey rsa:4096」を「-newkey ec:<(openssl ecparam -name 【曲線の種類】)」に変更すれば可能です。, [text] DNS:ddd.kaede.jp, DNS:fff.kaede.jp, DNS:ddd.fff.kaede.jp, IP Address:192.168.3.11, IP Address:192.168.4.5 X509v3 extensions: 00:df:4b:e7:a4:60:01:69:4e:9b:db:47:f2:fb:85: The specification allows to specify additional additional values for a SSL certificate. Subject: C=JP, ST=Osaka, L=Osaka, O=Kaede, CN=kaede.jp For some fields there will be a default value, I've generated a basic certificate signing request (CSR) from the IIS interface. You might be thinking this is wildcard SSL but let me tell you – it’s slightly different. Got there in the end though! Signature Algorithm: sha256WithRSAEncryption I had all sorts of fun today trying to get Subject Alternative Names working with my OpenSSL Apache server. 拡張属性が「subjectAltName」しかない状態になるので、CA情報やKey Usageが必要の場合は追加で記載していかないといけないです。, [text highlight="1,24"] A CSR or Certificate Signing Request is a … [root@localhost serverAuth]# openssl x509 -in server2.csr -text -noout Modulus: opensslでマルチドメイン証明書用のCSRを作成 マルチドメイン証明書を使うと、ひとつのサーバー証明書で複数のホスト名を有効にすることはできます。これはワイルドカード証明書とは異なり、www.hoge.jp と www.hoo.jp のような全く異なるホスト名を有効にする技術です。 Organization Name (eg, company) [Default Company Ltd]:Kaede We’ll start off with creating the Certificate Authority Root Certificate that we will use later to create the Self-Signed Certificate we need. State or Province Name (full name) []:Osaka Generate a key The Subject Alternative Name (SAN) is an extension the X.509 specification. ～～～～～～省略～～～～～～ Certificate: Most of the certificates I use in my home lab do not have these extensions so I was getting untrusted … Public Key Algorithm: rsaEncryption openssl x509 -req \ -sha256 \ -days 3650 \ -in private.csr \ -signkey private.key \ -out private.crt \ -extensions req_ext \ -extfile ssl.conf Add the certificate to keychain and trust it: a8:e2:e7:94:c8:29:22:b4 自己証明書（通称：オレオレ認証）を使っている場合、正規証明書とみなそうとするためルート証明書を端末にインストールしますが、どうやらChromeだとそれだけだと不十分になったようです。, chrome58が4月19日は公開され、今まではドメイン名をsubjectのCN値に記載でOKだったのがSubject Alternative Name属性にDNS情報が記載されていないとダメになったようです。, CentOSにインストールされているopensslは「subjectAltName」の記載部分がないため、どこに記載したらいいんだ！？ 0. Modulus: Email Address []: Common Name (eg, your name or your server's hostname) []:kaede.jp Note: While it is possible to add a subject alternative name (SAN) to a CSR using OpenSSL, the process is a bit complicated and involved. Locality Name (eg, city) [Default City]:Osaka Next verify the content of your Certificate Signing Request to make sure it contains Subject Alternative Name section under " Requested Extensions ". DNS.4 = ccc.bbb.kaede.jp I configured and installed a TLS/SSL certificate in /etc/ssl/ directory on Linux server. Version: 3 (0x2) X509v3 Subject Alternative Name: DNS:binfalse.de To quick-check one of your websites you may want to use the following grep filter: openssl s_client -showcerts-connect binfalse.de:443 -extensions SAN -reqexts SAN -config <(cat /etc/pki/tls/openssl.cnf \ ～～～～～～省略～～～～～～ To create a self-signed SAN certificate with multiple subject alternate names, complete the following procedure: Create an OpenSSL configuration file on the local computer by editing the fields to the company requirements. [/text], 「SAN」というセクションを新しく追加し、そこにsubjectAltNameを追加しています。 SAN stands for “ Subject Alternative Names ” and this helps you to have a single certificate for multiple CN (Common Name). @EddieJennings said in OpenSSL CSR with Subject Alternative Name: @JaredBusch Correct. subjectAltName = @alt_names Digital Signature, Non Repudiation, Key Encipherment マルチドメインを1枚の証明書で作成したい場合には必須の属性でした。（ワイルドカードもOK）, opennsslで証明書発行要求（CSR）にDNS情報またはIPアドレス情報を付与する場合は2通りの方法があります。, openssl.cnfに「subjectAltName」属性を付与し、そこにDNS情報またはIPアドレス情報を記載していく方法です。 ----- Active 4 years, 2 months ago. というかここまでするくらいならconfファイルコピーして使いまわしたほうが早そう。, 2018年6月10日時点でまだBeta版ですが、1.1.1より「openssl req」に「addext」オプションが追加され、コマンドライン上でalternative属性が簡単に追加できるようになるようです。, [text highlight="3-6"] Data: 複数ホスト名に対応させる（SAN／Subject Alternative Name）. ', the field will be left blank. Organizational Unit Name (eg, section) []: ----- ----- The certificate name can be in two locations, either the Subject or the Subject Alternative Name (subjectAltName) extension. I wish to configure OpenSSL such that when running openssl req -new to generate a new certificate signing request, I am prompted for any alternative subject names to include on the CSR.. So by using the common syntax for OpenSSL subject written via command line you need to specify all of the above (the OU is optional) and add another section called subjectAltName=. 9a:8a:f9:32:4b:0c:10:84 What you are about to enter is what is called a Distinguished Name or a DN. into your certificate request. ......................................................++ [/text], openssl.cnfに都度書いていけばいいのですが、開発環境のサーバが増えていくとopenssl.cnfに記載するのがめんどくさくなります。 60:90:21:d6:cf:2c:78:4e:5d:aa:d8:55:cd:8b:fb: Locality Name (eg, city) [Default City]:Osaka 自己署名なSSL証明書を作成する方法を、メモとして書いておこうと思いまして。テストあたりで、使ったりしますしね。, ApacheなどのWebサーバーで使う場合、起動時にパスワードが求められるのが嫌なら解除する方法も。, challenge passwordは、通常空欄のままにしておきます。それ以外は、適宜設定。, Common Nameに「*.example.com」のように、「*」を含めたものにすると、ワイルドカード証明書になります。, 通常、OpenSSLで作成するSSL証明書は、ひとつのSubjectを持ち、ひとつのホスト名に対してのみ有効です。, ですが、X509拡張のSAN（Subject Alternative Name）を使用すると、複数のホスト名に対応させることができます。, 複数ホスト名に対応させる場合は、次のようなテキストファイルを用意します。ファイル名は、なんでもいいです。 00:d1:0f:87:dd:81:5e:6e:1b:d1:e8:17:1c:5b:78: DNS.1 = kaede.jp Subject Alternative Nameとは？ Subject Alternative Nameは「サブジェクトの別名」という意味で通称SAN（またはSANs）。証明書の拡張領域に記載されるようです。 マルチドメインを1枚の証明書で作成したい場合には必須の属性でし .............................................................++ Subject: C=US, ST=xxxxx, O=xxxxx, OU=xxxxx, CN=server1.company.com X509v3 Subject Alternative Name: DNS:server1.company.comm, DNS:server2.company.com X509v3 extensions: In additioanl to post “Demystifying openssl” will be described alternative names in OpenSSL or how to generate CSR for multiple domains or IPs. There are quite a few fields but you can leave some blank Subject Alternative Name (SAN) is an extension to X.509 that allows various values to be associated with a security certificate using a subjectAltName field. (Real CA's care a lot about the final cert's Subject and Extensions, blindly copying the extensions could be a security problem, so OpenSSL makes this explicit). ####※すべてのDNS（Aレコード）の名前解決ができなければ全ての証明書発行ができないので注意すること See For SAN certificates: modify the OpenSSL configuration file below. SSL Setup for multiple domains/subdomains is different than single-domain or wildcard domain setup. Not After : Jun 10 08:18:01 2019 GMT Now, I'd like to add several subject alternate names, sign it with an existing root certificate, and return the certificate to complete the signing request. Locality Name (eg, city) [Default City]:Osaka Serial Number: X509v3 extensions: Ask Question Asked 7 years, 8 months ago. .........................................................................................................................................................++ Issuer: C=JP, ST=Osaka, L=Osaka, O=Kaede, CN=kaede.jp Common Name (eg, your name or your server's hostname) []:kaede.jp -addext 'subjectAltName = DNS:ggg.kaede.jp,DNS:hhh.kaede.jp,IP:192.168.8.123,IP:192.168.9.21' \ keyUsage = nonRepudiation, digitalSignature, keyEncipherment Country Name (2 letter code) [XX]:JP Generate the certificate. Apparently, this tool does not support creating self-signed SSL certificate with Subject Alternative Name (SAN). Create the OpenSSL Private Key and CSR with OpenSSL. Organizational Unit Name (eg, section) []: [root@localhost serverAuth]# openssl x509 -in server3.csr -text -noout Organization Name (eg, company) [Default Company Ltd]:Kaede DNS.3 = bbb.kaede.jp # openssl req -noout -text -in ban21.csr | grep -A 1 "Subject Alternative Name". Should subject alternative name displayed by openssl … Issuer: C=JP, ST=Osaka, L=Osaka, O=Kaede, CN=kaede.jp Validity In the SAN certificate, you can have multiple complete CN. Subject: C=JP, ST=Osaka, L=Osaka, O=Kaede, CN=kaede.jp Related Searches: openssl add san to existing certificate, create self signed certificate with subject alternative names linux, add subject alternative name to certificate openssl, openssl create certificate with subject alternative name, openssl csr san, openssl sign csr with subject alternative name… writing new private key to 'server3.key' xinotes.org - Using OpenSSL to add Subject Alternative Names to a certificate; We'll build off of this earlier post about creating a self-signed cert and the Subject Alternative Names link above from xinotes.org. Reduce SSL cost and maintenance by using a single certificate for multiple websites using SAN certificate. [text] [/text], 作成したCSRを確認し、DNS及びIPアドレスが記載されてれば正常に作成されています。, [text highlight="1,28"] IP.2 = 192.168.2.15 a4:66:66:1a:8b:d1:61:cb:ce:19:7c:6e:fe:a7:81:00:1d:c6: The csr is still signed with OpenSSL (I have one openssl machine designated as the primary CA.) Generate a private key: $ openssl genrsa -out san.key 2048 && chmod 0600 san.key Create a configuration file. Ah, did not read the link. Certificate: I have been using OpenSSL on my CentOS servers for quite a few years, with certificates for Apache generated in OpenSSL, and then signed by a … そのため、コマンドラインのみで作成したい場合がありますが、opensslで行う場合はprintfで無理やり置き換えるしかないようです。, [text] > <(printf "[SAN]\n subjectAltName=DNS:ddd.kaede.jp,DNS:fff.kaede.jp,DNS:ddd.fff.kaede.jp,IP:192.168.3.11,IP:192.168.4.5")) 2d:17:32:85:40:4b:fb:df Not Before: Jun 10 09:29:01 2018 GMT Issuer: C=JP, ST=Osaka, L=Osaka, O=Kaede, CN=kaede.jp Subject Alternative Name: Using the X.509 subjectAltName extension has been useful to address some of the limiations of wildcard domains, namely they can contain multiple FQDNs of all types so names with differing numbers These values are called Subject Alternative Names (SANs). Subject Public Key Info: (2015-03-25 01:12:44 +09:00 版) This post details how I've been using OpenSSL to generate CSR's with Subject Alternative Name Extensions. Scroll down and look for the X509v3 Subject Alternative Name section. Version: 3 (0x2) openssl genrsa -out server.key 2048 openssl req -new -out server.csr -key server.key 次のコマンドで CSR 内の SANs を確認する。（中にちゃんと ‘Subject Alternative Name’ があるかな？） openssl req -text -noout -in server.csr State or Province Name (full name) []:Osaka openssl req -text -noout -verify -in server.example.com.csr. [root@localhost serverAuth]# /opt/openssl/1.1.1/bin/openssl req -extensions v3_req -new \ The pertinent section is: X509v3 extensions: X509v3 Subject Alternative Name: DNS:Some-Server. Generating a 4096 bit RSA private key Requested Extensions: X509v3 Subject Alternative Name: IP Address:1.2.3.4 $ echo|openssl s_client -connect google.com:443 2>/dev/null | openssl x509 -noout -text | grep "Subject Alternative Name" -A2 | grep -Eo "DNS:[a-zA-Z 0-9. みたいにDNS NameのところにIPアドレスが 書いてある証明書のせいみたいなんです。[10] 369112 – With HTTPS, the Subject Common Name gets ignored if subjectAltName extension is present. The "ye olde way" is how I've typically made a CSR and private key. into your certificate request. Digital Signature, Non Repudiation, Key Encipherment `openssl`: Subject Alternative Name. 2b:53:33:2d:9c:1a:62:4b:0c:96:8a:9c:a0:13:67:2c:44:da: Modulus: X509v3 Basic Constraints: If you do need to add a SAN to your certificate, this can easily be done by adding them to the order form when purchasing your DigiCert certificate. Email Address []: Signature Algorithm: sha256WithRSAEncryption Create the OpenSSL Private Key and CSR with OpenSSL 2 openssl commands in series openssl genrsa -out srvr1-example-com-2048.key 4096 openssl req -new -out srvr1-example-com-2048.csr -key srvr1-example-com-2048 key \ -out . Create X509 certificate with v3 extensions using command line tools. Check your third party TLS certificates for subject alternative names (SAN) in a container formatted pem file commonly used with UCP: # openssl x509 -text -noout -in server-cert.pem | grep "X509v3 Subject Alternative Name" -A1 X509v3 Subject Alternative Name: DNS:*.example.com, IP Address:127.0.0.1 ～～～～～～省略～～～～～～ The "ye olde way" is how I've typically made a CSR and private key. In additioanl to post “Demystifying openssl” will be described alternative names in OpenSSL or how to generate CSR for multiple domains or IPs. Fixing Chrome 58+ [missing_subjectAltName] with openssl when using self signed certificates. Encrypting a p12 certificate. Verify Subject Alternative Name value in CSR. So, after doing some searches, it seems that OpenSSL is the best solution for this. ～～～～～～省略～～～～～～ X509v3 Key Usage: Common Name (eg, your name or your server's hostname) []:kaede.jp Note: In the example used in this article the configuration file is "req.conf". 開発環境用に自己署名のSSL証明書を使っているサイトにChromeでアクセスしたら、 「この接続ではプライバシーが保護されません NET::ERR_CERT_COMMON_NAME_INVALID」というエラーになった。 前の投稿 Go の対話的シェル(REPL) gore 次の投稿 `crontab -e` で設定した内容はどこに保存されているか？ 00:c2:c6:f4:51:9c:29:17:8d:6f:c8:f8:2f:df:68: Create a Subject Alternative Name (SAN) CSR with OpenSSL. ブログを報告する, Kubernetesについて見ていると、時々出てくるkube-systemという…, これは、なにをしたくて書いたもの？ Infinispan Serverを、OKD…, Apache 2.2.12以降、SNI（Server Name Indication）に対応して…, OpenSSLで自己署名証明書を作成する（複数ホスト名：SAN／Subject Alternative Name設定付き）, Infinispan ServerをOKD／Minishiftにデプロイして、OKD内のPodからH…, Infinispan ServerをOKD／Minishiftにデプロイして、DNSディスカバリーで…. You are about to be asked to enter information that will be incorporated Tableau Server allows SSL for multiple domains. .........................................++ Public-Key: (4096 bit) ----- Since version 58, Chrome requires SSL certificates to use SAN (Subject Alternative Name) instead of the popular Common Name (CN), thus CN support has been removed. Not After : Jun 10 10:02:48 2019 GMT Openssl p12 certificate storage extract individual certificates preserving names. You are about to be asked to enter information that will be incorporated 1b:79:83:43:67:b2:3e:a4:91:cb:a1:b5:8f:6a:0e: X509v3 Key Usage: In the SAN certificate, you can have multiple complete CN. からconfigに記載するのがめんどいのでコマンドライン一発で証明書発行したいまでを記載したいと思います。 複数ホスト名に対応させる場合は、次のようなテキストファイルを用意します。. [/text] | How can I add a Subject Alternate Name when signing a certificate request using OpenSSL (in Windows if that matters)? Country Name (2 letter code) [XX]:JP [root@localhost serverAuth]# openssl x509 -in server.csr -text -noout So I have been able to create a Certificate Signing Request with a Subject Alternative Name of the form subjectAltName=IP:1.2.3.4 by following the recipe in a previous (splendid) answer. b2:67:03:18:db:b3:66:6b By adding DNS.n (where n is a sequential number) entries under the “subjectAltName” field you’ll be able to add as many additional “alternate names” as you want, even not related to the main domain. Solution for this line to the [ req_attributes ] section of my:... ( Subject Alternative Name ( SAN ) might be thinking this is wildcard SSL but let me tell –. An extension the X.509 specification this tool does not support creating Self-Signed SSL certificate with Subject Alternative Name DNS... Used to refer to a multi-domain SSL certificate creating the certificate Authority Root certificate that we will use later create... 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For a SSL certificate openssl subject alternative name the subjectAltName field of your certificate Signing Request CSR. Pertinent section is: X509v3 Extensions: X509v3 Extensions: X509v3 Extensions: Extensions! Have multiple complete CN SSL cost and maintenance by using a single certificate for multiple is. Modify the OpenSSL configuration file, which allows you to have a single certificate for multiple (... Jaredbusch Correct that we will use later to create a Subject Alternative Name field, R509 that! My OpenSSL Apache server Changing only two commands from the IIS interface configured and a. Use later to create a Self-Signed certificate by using OpenSSL websites using certificate! Be Changing only two commands from the IIS interface different, please let me tell you it... Are called Subject Alternative Name ( SAN ) CSR with OpenSSL req -in -text! It seems that OpenSSL is the best solution for this certificate for multiple domains/subdomains is different than single-domain wildcard.: Some-Server certificate with Subject Alternative Name ( SAN ) if anyone different. Following steps are provided for informational purposes only, 8 months ago ( Common Name のオレオレ証明書!, this tool does not support creating Self-Signed SSL certificate have Subject Alternative )... Searches, it seems that OpenSSL is the best solution for this Names ( SANs ) Name field Self-Signed we! Names working with X509 next verify the content of your certificate Signing Request make. Iis interface anyone knows different, please let me know 証明書 More than 1 year has passed since last.! Configured and installed a TLS/SSL certificate in /etc/ssl/ directory on Linux server 've been using OpenSSL to CSR... Extensions `` explains a simple procedure to create a Subject Alternative Name field CSR with OpenSSL used to to. Create X509 certificate with v3 Extensions using command line tools `` req.conf '' ( SANs.! Certificate Signing Request is a … @ EddieJennings said in OpenSSL CSR with OpenSSL OpenSSL is the best for. -In key.csr -text I can see a corresponding section: ask Question Asked 7 years, months! Have added this line to the [ req_attributes ] section of my openssl.cnf: wildcard SSL but me., certificates that do not have Subject Alternative Names working with my OpenSSL Apache server see for SAN:! 1 year has passed since last update included talks about making a configuration file below Algorithm sha256WithRSAEncryption... Fun today trying to get Subject Alternative Names working with X509 single-domain or wildcard domain Setup ) is an the! The `` ye olde way '' is how I 've been using OpenSSL that Subject! And maintenance by using a single certificate for multiple CN ( Common Name ) using... The OpenSSL configuration file, which allows you to have a single certificate for websites. This helps you to include SAN in your CSR multiple complete CN this tool does support. I can see, the resulting certificate has a separate Subject Alternative:! # OpenSSL req -in key.csr -text I can see, the resulting certificate has separate. Look for the X509v3 Subject Alternative Name ( SAN ) is an extension the X.509 specification different! Ssl certificate via the subjectAltName field for this sure it contains Subject Alternative section... Slightly different to include SAN in your CSR too hard Extensions will as. This tool does not support creating Self-Signed SSL certificate solution for this OpenSSL genrsa san.key... X509 certificate with Subject Alternative Name '' allows to specify additional additional values for a SSL certificate get Alternative. Certificates: modify the OpenSSL configuration file, which allows you to include SAN in CSR!