小喵 🐈 says to YSITD
root@www:/etc/ssl# openssl x509 -noout -text -in www.crt Certificate: Data: Version: 3 (0x2) Serial Number: df:0e:01:fa:35:b6:79:63 Signature Algorithm: ecdsa-with-SHA256 Issuer: C=TW, ST=Taiwan, L=Taoyuan City, O=CSIE in Ming-Chuan University, OU=Networking Information Center, CN=Ballerina Certificate Authority - SHA256 Validity Not Before: Mar 31 20:15:46 2017 GMT Not After : Mar 31 20:15:46 2025 GMT Subject: C=TW, ST=Taiwan, L=Taoyuan City, O=CSIE in Ming-Chuan University, OU=Networking Information Center, CN=10.100.0.2 Subject Public Key Info: Public Key Algorithm: id-ecPublicKey Public-Key: (521 bit) pub: 04:00:d0:89:4b:76:68:09:df:d0:19:1a:f5:4f:17: 77:a6:48:04:ba:70:2b:76:00:e4:f0:bd:95:34:da: cc:e7:7f:e0:23:25:28:bb:87:34:ae:82:a2:98:88: 69:66:d2:64:70:c6:e5:bb:bb:64:09:08:5f:a9:a5: a9:b8:76:3f:e9:7b:45:01:93:99:eb:1c:c3:b5:5a: 2b:db:dc:b2:79:40:50:e1:6c:ff:26:57:86:03:f1: 4b:6b:b2:5c:e6:7a:c7:1c:a9:a4:08:dd:a9:d0:15: cb:58:13:06:35:4f:c3:eb:98:18:a4:09:cb:f6:4b: b7:f6:01:a1:a3:e1:62:ef:45:f1:12:0e:2b Field Type: prime-field Prime: 01:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff: ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff: ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff: ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff: ff:ff:ff:ff:ff:ff A: 01:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff: ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff: ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff: ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff: ff:ff:ff:ff:ff:fc B: 51:95:3e:b9:61:8e:1c:9a:1f:92:9a:21:a0:b6:85: 40:ee:a2:da:72:5b:99:b3:15:f3:b8:b4:89:91:8e: f1:09:e1:56:19:39:51:ec:7e:93:7b:16:52:c0:bd: 3b:b1:bf:07:35:73:df:88:3d:2c:34:f1:ef:45:1f: d4:6b:50:3f:00 Generator (uncompressed): 04:00:c6:85:8e:06:b7:04:04:e9:cd:9e:3e:cb:66: 23:95:b4:42:9c:64:81:39:05:3f:b5:21:f8:28:af: 60:6b:4d:3d:ba:a1:4b:5e:77:ef:e7:59:28:fe:1d: c1:27:a2:ff:a8:de:33:48:b3:c1:85:6a:42:9b:f9: 7e:7e:31:c2:e5:bd:66:01:18:39:29:6a:78:9a:3b: c0:04:5c:8a:5f:b4:2c:7d:1b:d9:98:f5:44:49:57: 9b:44:68:17:af:bd:17:27:3e:66:2c:97:ee:72:99: 5e:f4:26:40:c5:50:b9:01:3f:ad:07:61:35:3c:70: 86:a2:72:c2:40:88:be:94:76:9f:d1:66:50 Order: 01:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff: ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff: ff:ff:ff:fa:51:86:87:83:bf:2f:96:6b:7f:cc:01: 48:f7:09:a5:d0:3b:b5:c9:b8:89:9c:47:ae:bb:6f: b7:1e:91:38:64:09 Cofactor: 1 (0x1) Seed: d0:9e:88:00:29:1c:b8:53:96:cc:67:17:39:32:84: aa:a0:da:64:ba X509v3 extensions: X509v3 Basic Constraints: CA:FALSE X509v3 Key Usage: Digital Signature, Non Repudiation, Key Encipherment Signature Algorithm: ecdsa-with-SHA256 30:81:87:02:41:0b:b6:58:5b:87:df:87:ca:17:18:a8:6f:7e: 96:03:bc:59:57:7c:63:05:13:d6:40:92:d7:de:24:5e:f5:07: f6:4d:0c:dd:f0:44:dd:98:47:2e:e8:4d:b6:75:fa:cd:89:55: 83:d8:90:21:7e:26:63:47:69:1b:85:3a:86:c0:f1:fd:02:42: 00:a9:22:5a:65:83:af:f7:3e:07:b4:1c:13:50:db:5c:e2:4f: 8a:b2:b7:f0:08:44:55:9b:47:cb:44:f5:15:89:ac:ad:d9:f0: