{"id":1325,"date":"2026-06-24T23:42:38","date_gmt":"2026-06-24T14:42:38","guid":{"rendered":"https:\/\/www.ecoop.net\/memo\/?p=1325"},"modified":"2026-06-25T00:43:04","modified_gmt":"2026-06-24T15:43:04","slug":"openssl-cheatsheet","status":"publish","type":"post","link":"https:\/\/www.ecoop.net\/memo\/archives\/openssl-cheatsheet.html","title":{"rendered":"openssl\u3067\u8a3c\u660e\u66f8\u30fb\u9375\u30fbCSR\u30fb\u63a5\u7d9a\u3092\u78ba\u8a8d\u3059\u308b\u30b3\u30de\u30f3\u30c9\u7dcf\u307e\u3068\u3081"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\u8a3c\u660e\u66f8\u3084\u9375\u307e\u308f\u308a\u3067\u56f0\u3063\u305f\u3089\u3001\u3060\u3044\u305f\u3044 <code>openssl<\/code> \u30b3\u30de\u30f3\u30c9\u3067\u4e2d\u8eab\u3092\u78ba\u8a8d\u3059\u308c\u3070\u89e3\u6c7a\u3057\u307e\u3059\u3002 \u3053\u306e\u8a18\u4e8b\u306f\u3001\u300c\u78ba\u8a8d\u300d\u7cfb\u306e openssl \u30b3\u30de\u30f3\u30c9\u3092\u7528\u9014\u5225\u306b\u7dcf\u3056\u3089\u3044\u3057\u305f\u30c1\u30fc\u30c8\u30b7\u30fc\u30c8\u3067\u3059\u3002\u30b3\u30d4\u30da\u3067\u4f7f\u3063\u3066\u304f\u3060\u3055\u3044\u3002\u5b9f\u969b\u306e\u51fa\u529b\u4f8b\u3068\u3001\u3064\u307e\u305a\u304d\u3084\u3059\u3044\u30a8\u30e9\u30fc\u4f8b\u3082\u8f09\u305b\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\u3053\u306e\u8a18\u4e8b\u306f OpenSSL 3.x(\u624b\u5143\u306f 3.6.2)\u3067\u5b9f\u969b\u306b\u5b9f\u884c\u3057\u3066\u78ba\u8a8d\u3057\u3066\u3044\u307e\u3059\u3002<code>openssl version<\/code> \u3067\u81ea\u5206\u306e\u7248\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002\u53e4\u3044 1.0.x \u7cfb\u3060\u3068\u4e00\u90e8\u30aa\u30d7\u30b7\u30e7\u30f3\u306e\u65e2\u5b9a\u304c\u9055\u3046\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u51fa\u529b\u4f8b\u306e\u8a3c\u660e\u66f8\u306f\u3053\u306e\u8a18\u4e8b\u7528\u306b\u4f5c\u3063\u305f\u30c6\u30b9\u30c8\u7528(<code>www.example.com<\/code>)\u306a\u306e\u3067\u3001\u5024\u306f\u304a\u624b\u5143\u306e\u3082\u306e\u306b\u8aad\u307f\u66ff\u3048\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<\/blockquote>\n\n\n\n<!--more-->\n\n\n\n<h3 class=\"wp-block-heading\">0. \u30a4\u30f3\u30b9\u30c8\u30fc\u30eb<\/h3>\n\n\n\n<pre class=\"wp-block-preformatted\"># macOS(Homebrew)\nbrew install openssl\n\n# Linux(RedHat\/CentOS\/Rocky\/Alma \u7cfb)\nsudo dnf install openssl       # \u53e4\u3044\u74b0\u5883\u306f: sudo yum install openssl\n\n# Linux(Debian\/Ubuntu \u7cfb)\nsudo apt-get install openssl\n<\/pre>\n\n\n\n<pre class=\"wp-block-preformatted\">openssl version        # \u30d0\u30fc\u30b8\u30e7\u30f3\u78ba\u8a8d\n<\/pre>\n\n\n\n<pre class=\"wp-block-preformatted\">OpenSSL 3.6.2 7 Apr 2026 (Library: OpenSSL 3.6.2 7 Apr 2026)\n<\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">1. \u8a3c\u660e\u66f8(crt \/ cer \/ pem)\u306e\u4e2d\u8eab\u3092\u898b\u308b<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">\u5168\u4f53\u3092\u30c6\u30ad\u30b9\u30c8\u3067\u8868\u793a<\/h4>\n\n\n\n<pre class=\"wp-block-preformatted\">openssl x509 -in cert.pem -noout -text\n<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5192\u982d\u306f\u3053\u3093\u306a\u898b\u305f\u76ee\u3067\u3059(\u9577\u3044\u306e\u3067\u5148\u982d\u3060\u3051)\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">Certificate:\n    Data:\n        Version: 3 (0x2)\n        Serial Number:\n            28:a2:ca:d3:82:0c:26:a9:4a:59:0b:a1:be:1d:68:2f:48:53:cf:c8\n        Signature Algorithm: sha256WithRSAEncryption\n        Issuer: C=JP, O=Example CA, CN=Example Intermediate CA\n        Validity\n            Not Before: Jun 24 13:48:19 2026 GMT\n            Not After : Jun 24 13:48:19 2027 GMT\n        Subject: C=JP, O=Example Inc, CN=www.example.com\n        Subject Public Key Info:\n            Public Key Algorithm: rsaEncryption\n                Public-Key: (2048 bit)\n<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">DER(\u30d0\u30a4\u30ca\u30ea)\u306e\u8a3c\u660e\u66f8\u306a\u3089 <code>-inform der<\/code> \u3092\u4ed8\u3051\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">openssl x509 -inform der -in cert.der -noout -text\n<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">\u3088\u304f\u898b\u305f\u3044\u9805\u76ee\u3060\u3051\u30d4\u30f3\u30dd\u30a4\u30f3\u30c8\u3067<\/h4>\n\n\n\n<pre class=\"wp-block-preformatted\"># \u6709\u52b9\u671f\u9650(\u958b\u59cb\u30fb\u7d42\u4e86)\nopenssl x509 -in cert.pem -noout -dates\n<\/pre>\n\n\n\n<pre class=\"wp-block-preformatted\">notBefore=Jun 24 13:48:19 2026 GMT\nnotAfter=Jun 24 13:48:19 2027 GMT\n<\/pre>\n\n\n\n<pre class=\"wp-block-preformatted\"># \u6301\u3061\u4e3b(Subject)\u3068\u767a\u884c\u8005(Issuer)\nopenssl x509 -in cert.pem -noout -subject -issuer\n<\/pre>\n\n\n\n<pre class=\"wp-block-preformatted\">subject=C=JP, O=Example Inc, CN=www.example.com\nissuer=C=JP, O=Example CA, CN=Example Intermediate CA\n<\/pre>\n\n\n\n<pre class=\"wp-block-preformatted\"># \u30b3\u30e2\u30f3\u30cd\u30fc\u30e0\/SAN(\u5bfe\u5fdc\u30c9\u30e1\u30a4\u30f3)\nopenssl x509 -in cert.pem -noout -ext subjectAltName\n<\/pre>\n\n\n\n<pre class=\"wp-block-preformatted\">X509v3 Subject Alternative Name: \n    DNS:www.example.com, DNS:example.com\n<\/pre>\n\n\n\n<pre class=\"wp-block-preformatted\"># \u30d5\u30a3\u30f3\u30ac\u30fc\u30d7\u30ea\u30f3\u30c8(\u6307\u7d0b\u3002\u8a3c\u660e\u66f8\u3092\u4e00\u610f\u306b\u8868\u3059\u30cf\u30c3\u30b7\u30e5\u5024)\nopenssl x509 -in cert.pem -noout -fingerprint -sha256\n<\/pre>\n\n\n\n<pre class=\"wp-block-preformatted\">sha256 Fingerprint=24:05:09:37:66:CC:51:90:F6:71:20:E6:25:E6:1F:FE:36:D2:72:47:23:36:1C:0B:17:D3:36:F9:20:96:FC:9A\n<\/pre>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">SHA-1 \u306e\u30d5\u30a3\u30f3\u30ac\u30fc\u30d7\u30ea\u30f3\u30c8(<code>-sha1<\/code>)\u3082\u51fa\u305b\u307e\u3059\u304c\u3001SHA-1 \u306f\u5f31\u3044\u306e\u3067\u3044\u307e\u306f SHA-256 \u3092\u57fa\u672c\u306b\u3002<\/p>\n<\/blockquote>\n\n\n\n<h4 class=\"wp-block-heading\">\u8a3c\u660e\u66f8\u304c\u300c\u3044\u3064\u5931\u52b9\u3059\u308b\u304b\u300d\u3092\u6b8b\u308a\u65e5\u6570\u3067\u78ba\u8a8d<\/h4>\n\n\n\n<pre class=\"wp-block-preformatted\"># \u8a3c\u660e\u66f8\u304c30\u65e5\u4ee5\u5185\u306b\u5207\u308c\u308b\u306a\u3089 exit code 1(\u76e3\u8996\u30b9\u30af\u30ea\u30d7\u30c8\u5411\u3051)\nopenssl x509 -in cert.pem -noout -checkend $((30*24*60*60))\n<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u307e\u3060\u4f59\u88d5\u304c\u3042\u308c\u3070\u6b21\u306e\u3088\u3046\u306b\u51fa\u3066\u3001\u7d42\u4e86\u30b3\u30fc\u30c9\u306f <code>0<\/code>\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">Certificate will not expire\n<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u3059\u3067\u306b\u5207\u308c\u3066\u3044\u308b\/\u6307\u5b9a\u671f\u9593\u5185\u306b\u5207\u308c\u308b\u5834\u5408\u306f\u3001\u3053\u3046\u51fa\u3066\u7d42\u4e86\u30b3\u30fc\u30c9\u304c <code>1<\/code> \u306b\u306a\u308a\u307e\u3059\u3002\u30b9\u30af\u30ea\u30d7\u30c8\u306f\u3053\u306e\u7d42\u4e86\u30b3\u30fc\u30c9\u3067\u5224\u5b9a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">Certificate will expire\n<\/pre>\n\n\n\n<pre class=\"wp-block-preformatted\"># \u7d42\u4e86\u30b3\u30fc\u30c9\u3060\u3051\u898b\u305f\u3044\u3068\u304d\nopenssl x509 -in cert.pem -noout -checkend 0 ; echo \"exit=$?\"   # exit=0 \u306a\u3089\u6709\u52b9\u3001exit=1 \u306a\u3089\u5931\u52b9\u6e08\u307f\n<\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">2. \u79d8\u5bc6\u9375(key)\u306e\u4e2d\u8eab\u3092\u898b\u308b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u79d8\u5bc6\u9375\u306f RSA \u3060\u3051\u3067\u306a\u304f EC(\u6955\u5186\u66f2\u7dda)\u3082\u666e\u53ca\u3057\u3066\u3044\u307e\u3059\u3002\u9375\u306e\u7a2e\u985e\u3092\u554f\u308f\u306a\u3044 <code>openssl pkey<\/code> \u304c\u4fbf\u5229\u3067\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\"># \u6c4e\u7528(RSA\/EC \u3069\u3061\u3089\u3067\u3082OK)\u3002\u9375\u306e\u4e2d\u8eab\u3092\u8868\u793a\nopenssl pkey -in key.pem -noout -text\n\n# RSA\u9375\u306b\u9650\u5b9a\u3057\u305f\u6614\u306a\u304c\u3089\u306e\u30b3\u30de\u30f3\u30c9(\u4eca\u3082\u4f7f\u3048\u308b)\nopenssl rsa -in key.pem -noout -text\n\n# EC\u9375\nopenssl ec -in key.pem -noout -text\n<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">\u9375\u304c\u58ca\u308c\u3066\u3044\u306a\u3044\u304b\/\u30d1\u30b9\u30d5\u30ec\u30fc\u30ba\u304c\u5408\u3063\u3066\u3044\u308b\u304b\u78ba\u8a8d<\/h4>\n\n\n\n<pre class=\"wp-block-preformatted\">openssl pkey -in key.pem -noout -check\n<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5065\u5168\u306a\u3089\u4e00\u8a00\u3060\u3051\u8fd4\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">Key is valid\n<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u30d1\u30b9\u30d5\u30ec\u30fc\u30ba\u4ed8\u304d\u306e\u9375\u306a\u3089\u3001\u3053\u3053\u3067\u30d1\u30b9\u30d5\u30ec\u30fc\u30ba\u3092\u805e\u304b\u308c\u307e\u3059\u3002\u901a\u308c\u3070\u9375\u306f\u5065\u5168\u3067\u3059\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">3. \u8a3c\u660e\u66f8\u3068\u79d8\u5bc6\u9375\u304c\u300c\u30da\u30a2\u304b\u3069\u3046\u304b\u300d\u78ba\u8a8d\u3059\u308b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u300c\u30b5\u30fc\u30d0\u8a3c\u660e\u66f8\u300d\u3068\u300c\u79d8\u5bc6\u9375\u300d\u304c\u3061\u3083\u3093\u3068\u5bfe\u306b\u306a\u3063\u3066\u3044\u308b\u304b\u306f\u3001\u30c8\u30e9\u30d6\u30eb\u306e\u5b9a\u756a\u30c1\u30a7\u30c3\u30af\u3067\u3059\u3002 \u540c\u3058\u516c\u958b\u9375(\u306e\u6307\u7d0b)\u304c\u51fa\u308c\u3070\u4e00\u81f4\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\"># \u8a3c\u660e\u66f8\u5074\u306e\u516c\u958b\u9375\u306e\u6307\u7d0b\nopenssl x509 -in cert.pem -noout -pubkey | openssl pkey -pubin -outform der | openssl dgst -sha256\n\n# \u79d8\u5bc6\u9375\u5074\u306e\u516c\u958b\u9375\u306e\u6307\u7d0b\nopenssl pkey -in key.pem -pubout -outform der | openssl dgst -sha256\n<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u30da\u30a2\u306a\u3089\u30012\u3064\u306e\u30cf\u30c3\u30b7\u30e5\u5024\u304c\u3074\u3063\u305f\u308a\u4e00\u81f4\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">SHA2-256(stdin)= 719f234ab37d1a37eb91711e3523ff20d190eb14c9c257ba4f55d05113b05d42\nSHA2-256(stdin)= 719f234ab37d1a37eb91711e3523ff20d190eb14c9c257ba4f55d05113b05d42\n<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u30da\u30a2\u3067\u306a\u3044(\u8a3c\u660e\u66f8\u3068\u9375\u304c\u98df\u3044\u9055\u3063\u3066\u3044\u308b)\u5834\u5408\u306f\u3001\u5024\u304c\u5909\u308f\u3063\u3066\u4e00\u81f4\u3057\u307e\u305b\u3093\u3002\u300c\u9375\u3068\u8a3c\u660e\u66f8\u304c\u5408\u3063\u3066\u3044\u306a\u3044\u300d\u30a8\u30e9\u30fc\u306e\u6b63\u4f53\u306f\u3053\u308c\u3067\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">SHA2-256(stdin)= 719f234ab37d1a37eb91711e3523ff20d190eb14c9c257ba4f55d05113b05d42\nSHA2-256(stdin)= 46b4dfa6ec12127eaae40cc8ff77f26b83940d29271f56b552594b09e3f5e56d   \u2190 \u9055\u3046\u9375\n<\/pre>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\u53e4\u3044\u8a18\u4e8b\u3067\u306f <code>openssl x509 -modulus<\/code> \u3068 <code>openssl rsa -modulus<\/code> \u306e MD5 \u3092\u6bd4\u3079\u308b\u65b9\u6cd5\u304c\u6709\u540d\u3067\u3059\u304c\u3001\u3053\u308c\u306f RSA \u9375\u5c02\u7528\u3067\u3059\u3002EC\u9375\u306b\u3082\u52b9\u304f\u4e0a\u306e\u3084\u308a\u65b9\u3092\u899a\u3048\u3066\u304a\u304f\u3068\u5b89\u5fc3\u3067\u3059\u3002<\/p>\n<\/blockquote>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">4. CSR(\u8a3c\u660e\u66f8\u7f72\u540d\u8981\u6c42)\u306e\u4e2d\u8eab\u3092\u898b\u308b<\/h3>\n\n\n\n<pre class=\"wp-block-preformatted\">openssl req -in request.csr -noout -text\n\n# \u7533\u8acb\u5148\u306e\u30c9\u30e1\u30a4\u30f3\u30fb\u7d44\u7e54(Subject)\u3060\u3051\u78ba\u8a8d\nopenssl req -in request.csr -noout -subject\n<\/pre>\n\n\n\n<pre class=\"wp-block-preformatted\">subject=C=JP, O=Example Inc, CN=www.example.com\n<\/pre>\n\n\n\n<pre class=\"wp-block-preformatted\"># CSR \u306e\u7f72\u540d\u304c\u58ca\u308c\u3066\u3044\u306a\u3044\u304b\u691c\u8a3c\nopenssl req -in request.csr -noout -verify\n<\/pre>\n\n\n\n<pre class=\"wp-block-preformatted\">Certificate request self-signature verify OK\n<\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">5. PEM \u306b\u4f55\u304c\u5165\u3063\u3066\u3044\u308b\u304b\u4e00\u89a7\u3059\u308b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">1\u3064\u306e pem \u306b\u8a3c\u660e\u66f8\u3084\u9375\u304c\u8907\u6570\u9023\u7d50\u3055\u308c\u3066\u3044\u308b\u3068\u3001\u4f55\u304c\u5165\u3063\u3066\u3044\u308b\u304b\u5206\u304b\u308a\u306b\u304f\u3044\u3082\u306e\u3002 OpenSSL 3.x \u306e <code>storeutl<\/code> \u3067\u307e\u3068\u3081\u3066\u5217\u6319\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">openssl storeutl -noout -text bundle.pem\n<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u8a3c\u660e\u66f8\u3060\u3051\u3092\u9806\u756a\u306b\u78ba\u8a8d\u3057\u305f\u3044\u3068\u304d\u306f\u3001\u3053\u3093\u306a\u624b\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\"># bundle.pem \u306b\u542b\u307e\u308c\u308b\u8a3c\u660e\u66f8\u3059\u3079\u3066\u306e Subject\/Issuer \u3092\u4e00\u89a7\nopenssl crl2pkcs7 -nocrl -certfile bundle.pem | \\\n  openssl pkcs7 -print_certs -noout\n<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u30b5\u30fc\u30d0\u8a3c\u660e\u66f8 \u2192 \u4e2d\u9593\u8a3c\u660e\u66f8\u306e\u9806\u306b\u3001\u8ab0\u304c\u8ab0\u306b\u7f72\u540d\u3057\u305f\u304b(\u30c1\u30a7\u30fc\u30f3)\u304c\u8aad\u307f\u53d6\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">subject=C=JP, O=Example Inc, CN=www.example.com\nissuer=C=JP, O=Example CA, CN=Example Intermediate CA\n\nsubject=C=JP, O=Example CA, CN=Example Intermediate CA\nissuer=C=JP, O=Example CA, CN=Example Root CA\n<\/pre>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><code>subject<\/code>(\u6301\u3061\u4e3b)\u3068\u6b21\u306e\u8a3c\u660e\u66f8\u306e\u95a2\u4fc2\u3092\u898b\u308b\u3068\u3001<code>www.example.com<\/code> \u3092\u4e2d\u9593CA\u304c\u7f72\u540d\u3057\u3001\u305d\u306e\u4e2d\u9593CA\u3092\u30eb\u30fc\u30c8CA\u304c\u7f72\u540d\u3057\u3066\u3044\u308b\u3001\u3068\u3044\u3046\u9023\u9396\u304c\u5206\u304b\u308a\u307e\u3059\u3002\u30c1\u30a7\u30fc\u30f3\u306e\u8003\u3048\u65b9\u306f <a href=\"\/memo\/archives\/pki-basics.html\">PKI\u5165\u9580<\/a> \u3092\u53c2\u7167\u3002<\/p>\n<\/blockquote>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">6. \u30b5\u30fc\u30d0\u306b\u7e4b\u3044\u3067\u8a3c\u660e\u66f8\u3092\u78ba\u8a8d\u3059\u308b(s_client)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u30d5\u30a1\u30a4\u30eb\u304c\u624b\u5143\u306b\u306a\u304f\u3066\u3082\u3001\u52d5\u3044\u3066\u3044\u308b\u30b5\u30fc\u30d0\u306b\u7e4b\u3044\u3067\u8a3c\u660e\u66f8\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002\u30c8\u30e9\u30d6\u30eb\u8abf\u67fb\u3067\u3044\u3061\u3070\u3093\u4f7f\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\"># \u30b5\u30fc\u30d0\u306e\u8a3c\u660e\u66f8\u30c1\u30a7\u30fc\u30f3\u3092\u8868\u793a\nopenssl s_client -connect www.example.com:443 -servername www.example.com &lt;\/dev\/null\n\n# \u8a3c\u660e\u66f8\u90e8\u5206\u3060\u3051\u53d6\u308a\u51fa\u3057\u3066\u6709\u52b9\u671f\u9650\u3092\u898b\u308b\nopenssl s_client -connect www.example.com:443 -servername www.example.com &lt;\/dev\/null 2&gt;\/dev\/null \\\n  | openssl x509 -noout -dates -subject -issuer\n<\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>-servername<\/code>(SNI)\u306f\u30011\u3064\u306eIP\u3067\u8907\u6570\u30b5\u30a4\u30c8\u3092\u914d\u4fe1\u3057\u3066\u3044\u308b\u4eca\u3069\u304d\u306e\u30b5\u30fc\u30d0\u3067\u306f\u307b\u307c\u5fc5\u9808\u3067\u3059\u3002\u4ed8\u3051\u306a\u3044\u3068\u5225\u306e\u8a3c\u660e\u66f8\u304c\u8fd4\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n\n\n\n<li><code>-showcerts<\/code> \u3092\u4ed8\u3051\u308b\u3068\u4e2d\u9593\u8a3c\u660e\u66f8\u307e\u3067\u5168\u90e8\u8868\u793a\u3055\u308c\u3001\u30c1\u30a7\u30fc\u30f3\u306e\u8a2d\u7f6e\u6f0f\u308c\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-preformatted\">openssl s_client -connect www.example.com:443 -servername www.example.com -showcerts &lt;\/dev\/null\n<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">\u8a3c\u660e\u66f8\u30c1\u30a7\u30fc\u30f3\u306e\u691c\u8a3c<\/h4>\n\n\n\n<pre class=\"wp-block-preformatted\">openssl s_client -connect www.example.com:443 -servername www.example.com &lt;\/dev\/null 2&gt;\/dev\/null \\\n  | grep -i \"Verify return code\"\n<\/pre>\n\n\n\n<pre class=\"wp-block-preformatted\">Verify return code: 0 (ok)\n<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><code>0 (ok)<\/code> \u4ee5\u5916\u304c\u51fa\u305f\u3089\u691c\u8a3c\u5931\u6557\u3067\u3059\u3002\u3088\u304f\u51fa\u308b\u306e\u306f\u4e2d\u9593\u8a3c\u660e\u66f8\u306e\u8a2d\u7f6e\u6f0f\u308c\u306b\u3088\u308b <code>21 (unable to verify the first certificate)<\/code> \u3067\u3001\u30b5\u30fc\u30d0\u5074\u306b\u4e2d\u9593\u8a3c\u660e\u66f8\u3092\u9023\u7d50\u3059\u308c\u3070\u76f4\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">7. PFX \/ p12(\u8a3c\u660e\u66f8+\u9375\u306e\u675f)\u306e\u4e2d\u8eab\u3092\u898b\u308b<\/h3>\n\n\n\n<pre class=\"wp-block-preformatted\"># \u4e2d\u8eab\u3092\u8868\u793a(\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u805e\u304b\u308c\u308b)\nopenssl pkcs12 -in cert.pfx -info -noout\n<\/pre>\n\n\n\n<pre class=\"wp-block-preformatted\">MAC: sha256, Iteration 2048\nMAC length: 32, salt length: 16\nPKCS7 Encrypted data: PBES2, PBKDF2, AES-256-CBC, Iteration 2048, PRF hmacWithSHA256\nCertificate bag\nCertificate bag\nPKCS7 Data\nShrouded Keybag: PBES2, PBKDF2, AES-256-CBC, Iteration 2048, PRF hmacWithSHA256\n<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><code>Certificate bag<\/code>(\u8a3c\u660e\u66f8)\u3068 <code>Shrouded Keybag<\/code>(\u6697\u53f7\u5316\u3055\u308c\u305f\u79d8\u5bc6\u9375)\u304c\u30011\u30d5\u30a1\u30a4\u30eb\u306b\u540c\u68b1\u3055\u308c\u3066\u3044\u308b\u306e\u304c\u5206\u304b\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">PFX \u3092 PEM \u306b\u53d6\u308a\u51fa\u3059\/PEM \u304b\u3089 PFX \u3092\u4f5c\u308b\u306a\u3069\u306e\u5909\u63db\u306f\u3001\u5225\u8a18\u4e8b\u306b\u307e\u3068\u3081\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><a href=\"\/memo\/archives\/pem-convert.html\">PEM \u21c4 DER \/ CRT \/ KEY \/ PFX(p12) \u5909\u63dbopenssl\u30ef\u30f3\u30e9\u30a4\u30ca\u30fc\u96c6<\/a><\/p>\n<\/blockquote>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">8. \u3088\u304f\u3042\u308b\u30a8\u30e9\u30fc\u3068\u539f\u56e0<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5b9f\u884c\u30df\u30b9\u3067\u3088\u304f\u51fa\u308b\u30e1\u30c3\u30bb\u30fc\u30b8\u3068\u3001\u305d\u306e\u610f\u5473\u3067\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u5f62\u5f0f\u306e\u6307\u5b9a\u30df\u30b9(PEM \u306a\u306e\u306b <code>-inform der<\/code>)<\/h4>\n\n\n\n<pre class=\"wp-block-preformatted\">openssl x509 -inform der -in cert.pem -noout -text\n<\/pre>\n\n\n\n<pre class=\"wp-block-preformatted\">Could not find certificate from cert.pem\n... DECODER routines:OSSL_DECODER_from_bio:unsupported: ... Input type: DER\n<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u2192 \u30d5\u30a1\u30a4\u30eb\u306f PEM(\u30c6\u30ad\u30b9\u30c8)\u306a\u306e\u306b DER(\u30d0\u30a4\u30ca\u30ea)\u3068\u3057\u3066\u8aad\u3082\u3046\u3068\u3057\u3066\u3044\u307e\u3059\u3002<code>-inform der<\/code> \u3092\u5916\u3059(PEM \u306f\u305d\u306e\u307e\u307e\u8aad\u3081\u307e\u3059)\u3002\u9006\u306b DER \u30d5\u30a1\u30a4\u30eb\u306b <code>-inform der<\/code> \u3092\u4ed8\u3051\u5fd8\u308c\u305f\u5834\u5408\u3082\u540c\u7a2e\u306e\u30a8\u30e9\u30fc\u306b\u306a\u308a\u307e\u3059\u3002<code>file cert.pem<\/code> \u3084\u5148\u982d\u306e <code>-----BEGIN<\/code> \u306e\u6709\u7121\u3067\u5f62\u5f0f\u3092\u898b\u5206\u3051\u307e\u3057\u3087\u3046(<a href=\"\/memo\/archives\/cert-file-formats.html\">\u5f62\u5f0f\u307e\u3068\u3081<\/a>)\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">PFX \u306e\u30d1\u30b9\u30ef\u30fc\u30c9\u9055\u3044<\/h4>\n\n\n\n<pre class=\"wp-block-preformatted\">openssl pkcs12 -in cert.pfx -info -noout -passin pass:wrongpass\n<\/pre>\n\n\n\n<pre class=\"wp-block-preformatted\">Mac verify error: invalid password?\n<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u2192 PFX \u306e\u30d1\u30b9\u30ef\u30fc\u30c9\u304c\u9055\u3044\u307e\u3059\u3002\u66f8\u304d\u51fa\u3057\u305f\u3068\u304d\u306e\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u300c\u9375\u3068\u8a3c\u660e\u66f8\u304c\u4e00\u81f4\u3057\u306a\u3044\u300d<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">\u30b5\u30fc\u30d0\u8d77\u52d5\u6642\u306b <code>key values mismatch<\/code> \u306a\u3069\u3068\u8a00\u308f\u308c\u305f\u3089\u30013\u7ae0\u306e\u30da\u30a2\u78ba\u8a8d\u3067\u6307\u7d0b\u3092\u7a81\u304d\u5408\u308f\u305b\u307e\u3059\u3002\u5024\u304c\u98df\u3044\u9055\u3063\u3066\u3044\u308c\u3070\u3001\u8a3c\u660e\u66f8\u304b\u9375\u306e\u3069\u3061\u3089\u304b\u304c\u5225\u7269\u3067\u3059\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u3055\u3044\u3054\u306b<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u8a3c\u660e\u66f8 \u2192 <code>openssl x509<\/code>\u3001\u9375 \u2192 <code>openssl pkey<\/code>\u3001CSR \u2192 <code>openssl req<\/code>\u3001\u30b5\u30fc\u30d0\u76f4 \u2192 <code>openssl s_client<\/code>\u3002\u3053\u306e4\u3064\u3092\u62bc\u3055\u3048\u308c\u3070\u3060\u3044\u305f\u3044\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/li>\n\n\n\n<li>\u30d5\u30a1\u30a4\u30eb\u5f62\u5f0f\u305d\u306e\u3082\u306e\u306e\u9055\u3044(PEM\/DER\/PFX\u2026)\u306f <a href=\"\/memo\/archives\/cert-file-formats.html\">\u8a3c\u660e\u66f8\u30d5\u30a1\u30a4\u30eb\u306e\u5f62\u5f0f\u307e\u3068\u3081<\/a>\u3001\u9375\u3068\u8a3c\u660e\u66f8\u306e\u95a2\u4fc2\u306f <a href=\"\/memo\/archives\/pki-basics.html\">PKI\u5165\u9580<\/a> \u3092\u3069\u3046\u305e\u3002<\/li>\n\n\n\n<li>pem \u5358\u4f53\u306e\u4e2d\u8eab\u78ba\u8a8d\u306e\u57fa\u672c\u306f <a href=\"https:\/\/www.ecoop.net\/memo\/archives\/guide-for-pem.html\">pem \u30d5\u30a1\u30a4\u30eb\u3068\u306f\uff1f<\/a> \u306b\u3042\u308a\u307e\u3059\u3002<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u8a3c\u660e\u66f8\u3084\u9375\u307e\u308f\u308a\u3067\u56f0\u3063\u305f\u3089\u3001\u3060\u3044\u305f\u3044 openssl \u30b3\u30de\u30f3\u30c9\u3067\u4e2d\u8eab\u3092\u78ba\u8a8d\u3059\u308c\u3070\u89e3\u6c7a\u3057\u307e\u3059\u3002 \u3053\u306e\u8a18\u4e8b\u306f\u3001\u300c\u78ba\u8a8d\u300d\u7cfb\u306e openssl \u30b3\u30de\u30f3\u30c9\u3092\u7528\u9014\u5225\u306b\u7dcf\u3056\u3089\u3044\u3057\u305f\u30c1\u30fc\u30c8\u30b7\u30fc\u30c8\u3067\u3059\u3002\u30b3\u30d4\u30da\u3067\u4f7f\u3063\u3066\u304f\u3060\u3055\u3044\u3002\u5b9f\u969b\u306e\u51fa\u529b\u4f8b &hellip; <a href=\"https:\/\/www.ecoop.net\/memo\/archives\/openssl-cheatsheet.html\" class=\"more-link\">\u7d9a\u304d\u3092\u8aad\u3080 <span class=\"screen-reader-text\">openssl\u3067\u8a3c\u660e\u66f8\u30fb\u9375\u30fbCSR\u30fb\u63a5\u7d9a\u3092\u78ba\u8a8d\u3059\u308b\u30b3\u30de\u30f3\u30c9\u7dcf\u307e\u3068\u3081<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[89,135],"tags":[145,116,147,144,146],"class_list":["post-1325","post","type-post","status-publish","format-standard","hentry","category-web-dev","category-server","tag-apple","tag-ios","tag-openssl","tag-p12","tag-certification"],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/www.ecoop.net\/memo\/wp-json\/wp\/v2\/posts\/1325","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ecoop.net\/memo\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ecoop.net\/memo\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ecoop.net\/memo\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ecoop.net\/memo\/wp-json\/wp\/v2\/comments?post=1325"}],"version-history":[{"count":3,"href":"https:\/\/www.ecoop.net\/memo\/wp-json\/wp\/v2\/posts\/1325\/revisions"}],"predecessor-version":[{"id":1348,"href":"https:\/\/www.ecoop.net\/memo\/wp-json\/wp\/v2\/posts\/1325\/revisions\/1348"}],"wp:attachment":[{"href":"https:\/\/www.ecoop.net\/memo\/wp-json\/wp\/v2\/media?parent=1325"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ecoop.net\/memo\/wp-json\/wp\/v2\/categories?post=1325"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ecoop.net\/memo\/wp-json\/wp\/v2\/tags?post=1325"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}