seaotter.cite.tohoku.ac.jp
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:3f:d4:35:1e:b8:42:17:fc:64:fc:cb:72:09:fe:4a:b2:32 was issued on by Let's Encrypt.
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- Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)
Certificate Subject
CN=seaotter.cite.tohoku.ac.jp
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:3f:d4:35:1e:b8:42:17:fc:64:fc:cb:72:09:fe:4a:b2:32Serial Number (int): 283056719061210492669000272604547370365490
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: d1:7f:65:62:9e:bd:33:38:70:4d:01:21:83:f5:ed:01:13:b4:44:2e
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 2b:6a:70:4b:3c:18:52:fd:8a:c9:b3:28:3f:2a:08:ac:cc:f4:ba:c0
Fingerprint (sha256): 04:8f:08:13:06:00:90:3f:8e:5d:8f:3f:78:70:9d:56:bc:f2:b7:30:7b:d9:7d:e9:a5:8e:b3:61:f9:68:da:dd
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.org/Check the revocation status for certificate seaotter.cite.tohoku.ac.jp
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for seaotter.cite.tohoku.ac.jp
Public Key Algorithm
RSA
Key Size
4096
Signature Algorithm
SHA256 with RSA
Key Usage
Digital Signature
Key Encipherment
Extended Key Usages
Server Authentication
Client Authentication
Extensions
8 extensions
No
unhandled critical extensions
CA Certificate
This is not a CA certificate
Subject Alternative Names
seaotter.cite.tohoku.ac.jp
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Certificate
The complete raw certificate details for seaotter.cite.tohoku.ac.jp in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGGDCCBQCgAwIBAgISAz/UNR64Qhf8ZPzLcgn+SrIyMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xNjA4MTEyMzUzMDBaFw0x NjExMDkyMzUzMDBaMCUxIzAhBgNVBAMTGnNlYW90dGVyLmNpdGUudG9ob2t1LmFj LmpwMIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAxKN5VzOdyeJxu5au ROKbc+haC5vgReK2w87CP+nD/Pf6yi2tpPgdq02y7jClKRHHyzSh0F2p2V5DErvm wQEelYL4aFnXsmGNpZxiOAbPDwIXpq53CszOV3ZDQmf5qeLCjzp4xfmmFRsC/A4N rMhF5fduyYeN/cw32//86ruSzskFj9szNJtBbl1Wg7i4KKSqm2P8t6V4n/Iem/jn 7v9w39cusBe9gn13kSZRnR4Gd6Z9ksRlbaeCUKIjMkLJf2OLAtaqJYsLiXElZVzh HL8X3h1cd/lmYhJ/VIgxMstMz8PhVigL/KLNISpg8sT77RTfagQjLsK3m/sFhRoo bjfg3eDUr2VNXhCI3NaKL+K+iLflpml8zLz2F5o+w1xlvNr5/jQSptTr42I4PL7b ICpdQnQsVKfndRV1uPOOGEIRLDcNo1sACl+dVBMDPCseIta/pneC4qQGmsXpSooN 579Vw179OCo2hr7I8on4RLKcKA/o6FXOXrOo7Mp+0Q4QIrSEMKHRQ8fpWwxmKKCa K3Y6zfcehEzDQw/pnN47bAigECBMopCdWjsWglR8bAAJv/pxoafiUrJdQESfm2Dt eYci2B4RXLsfqKKUNe/owj0ZeJeVfQ/5WeT6KzAjf0U3qRSF8KXqh9dkeQtcwYtD RBVZmrB0r/TeL9q9ZjSDlree29ECAwEAAaOCAhswggIXMA4GA1UdDwEB/wQEAwIF oDAdBgNVHSUEFjAUBggrBgEFBQcDAQYIKwYBBQUHAwIwDAYDVR0TAQH/BAIwADAd BgNVHQ4EFgQU0X9lYp69MzhwTQEhg/XtARO0RC4wHwYDVR0jBBgwFoAUqEpqYwR9 3brm0Tm3pkVl7/Oo7KEwcAYIKwYBBQUHAQEEZDBiMC8GCCsGAQUFBzABhiNodHRw Oi8vb2NzcC5pbnQteDMubGV0c2VuY3J5cHQub3JnLzAvBggrBgEFBQcwAoYjaHR0 cDovL2NlcnQuaW50LXgzLmxldHNlbmNyeXB0Lm9yZy8wJQYDVR0RBB4wHIIac2Vh b3R0ZXIuY2l0ZS50b2hva3UuYWMuanAwgf4GA1UdIASB9jCB8zAIBgZngQwBAgEw geYGCysGAQQBgt8TAQEBMIHWMCYGCCsGAQUFBwIBFhpodHRwOi8vY3BzLmxldHNl bmNyeXB0Lm9yZzCBqwYIKwYBBQUHAgIwgZ4MgZtUaGlzIENlcnRpZmljYXRlIG1h eSBvbmx5IGJlIHJlbGllZCB1cG9uIGJ5IFJlbHlpbmcgUGFydGllcyBhbmQgb25s eSBpbiBhY2NvcmRhbmNlIHdpdGggdGhlIENlcnRpZmljYXRlIFBvbGljeSBmb3Vu ZCBhdCBodHRwczovL2xldHNlbmNyeXB0Lm9yZy9yZXBvc2l0b3J5LzANBgkqhkiG 9w0BAQsFAAOCAQEAlBkveBPn9iM9uxgTEg5PnmqtF8NDKhKiYJ2fCA+NuxDKZYul Cx9Jl18hFmrgOal9l3PkTzamhVkPfP0nYJBbm5sVAx/6hw2FIDAEyMjFM8WK7LUH ZVlBqq8FOuBNzgZ3HHtOWXcQMOGH7GDvayTIa1cKETYb3UjePWf0ldF7CMAn//e8 RuuUcoqvIdPOdD9zcluKL6+JSU95rxrohp15jdNSih1HLFw+kVz2NM2RWgd623Y7 +1G9ja1GtT7ecXK0ibhAvV74zGUu/G7xtpO4zWi5oNzRkFHDu9sKNeFF/JsrZEei ojbfBmSGdYqVity4Ms0oQjKOg6lKah+dYadKPQ== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAxKN5VzOdyeJxu5auROKb c+haC5vgReK2w87CP+nD/Pf6yi2tpPgdq02y7jClKRHHyzSh0F2p2V5DErvmwQEe lYL4aFnXsmGNpZxiOAbPDwIXpq53CszOV3ZDQmf5qeLCjzp4xfmmFRsC/A4NrMhF 5fduyYeN/cw32//86ruSzskFj9szNJtBbl1Wg7i4KKSqm2P8t6V4n/Iem/jn7v9w 39cusBe9gn13kSZRnR4Gd6Z9ksRlbaeCUKIjMkLJf2OLAtaqJYsLiXElZVzhHL8X 3h1cd/lmYhJ/VIgxMstMz8PhVigL/KLNISpg8sT77RTfagQjLsK3m/sFhRoobjfg 3eDUr2VNXhCI3NaKL+K+iLflpml8zLz2F5o+w1xlvNr5/jQSptTr42I4PL7bICpd QnQsVKfndRV1uPOOGEIRLDcNo1sACl+dVBMDPCseIta/pneC4qQGmsXpSooN579V w179OCo2hr7I8on4RLKcKA/o6FXOXrOo7Mp+0Q4QIrSEMKHRQ8fpWwxmKKCaK3Y6 zfcehEzDQw/pnN47bAigECBMopCdWjsWglR8bAAJv/pxoafiUrJdQESfm2DteYci 2B4RXLsfqKKUNe/owj0ZeJeVfQ/5WeT6KzAjf0U3qRSF8KXqh9dkeQtcwYtDRBVZ mrB0r/TeL9q9ZjSDlree29ECAwEAAQ== -----END PUBLIC KEY-----
ASN.1 decoded
[c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . [c:2|t:0|true] OtherName . . . . . . . . . . . . [c:0|t:2|false] INTEGER 2 . . . . . . . . [c:0|t:2|false] INTEGER 283056719061210492669000272604547370365490 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11 (sha256WithRSAEncryption) . . . . . . . . . . . . [c:0|t:5|false] NULL . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.6 (countryName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'US' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.10 (organizationName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Let's Encrypt' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.3 (commonName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Let's Encrypt Authority X3' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2016-08-11 23:53:00 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2016-11-09 23:53:00 +0000 UTC . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.3 (commonName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'seaotter.cite.tohoku.ac.jp' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.1 (rsaEncryption) . . . . . . . . . . . . . . . . [c:0|t:5|false] NULL . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (4208 bits) . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 802215376709649564166103604278955950563555826750958714495469182623165114267681212785000160516000216345303775511144136546398796885238670301820509841687424299407519485234084799125715933202629743601835275701614852858781214439541295612842569982413206333708834501127418619123093126150784146980360085861109738985265737962093183415795680680609853411510833202411346363295016114411909080603419736897986751446940723736110232395465603788631812687199711755368860346830770023004153656538007785533901839999631035176532402929253633700643442258709390736029886241203447946875124077939935400663991946684307811554012868953563858735614172365358377884518461613775403313111539906613991289718721251276175133030014617622180734743857517971803115606466619344280112032160450819619853481944023070423828668596583076386998227476058308006877475681186287306900797998130682904708371048459838684336747366826961100299361940919030940476764357033171322072680086600582405162041780283337159970464399928420960926435575125204145492767173109274890483507524319984532609806723678478613043512512704525805489472178645574048613804300311099390222904740554664587516348041759996372294390461811100200320452116839188166644349514303067342346052261415495055196545280178159935655887428561 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 65537 . . . . . . . . [c:2|t:3|true] ORAddress . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.15 (keyUsage) . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (4 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (3 bits) 05a0 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.37 (extKeyUsage) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.1 (serverAuth) . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.2 (clientAuth) . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.19 (basicConstraints) . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (2 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.14 (subjectKeyIdentifier) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (20 bytes) d17f65629ebd3338704d012183f5ed0113b4442e . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.35 (authorityKeyIdentifier) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (24 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|false] OtherName a84a6a63047dddbae6d139b7a64565eff3a8eca1 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.1.1 (authorityInfoAccess) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (100 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.1 (ocsp) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://ocsp.int-x3.letsencrypt.org/' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.2 (caIssuers) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://cert.int-x3.letsencrypt.org/' . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.17 (subjectAltName) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (30 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'seaotter.cite.tohoku.ac.jp' . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.32 (certificatePolicies) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (246 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.23.140.1.2.1 (Domain Validation Certificates Policy) . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.44947.1.1.1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.2.1 (cps) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:22|false] IA5String 'http://cps.letsencrypt.org' . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.2.2 (unotice) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:12|false] UTF8String 'This Certificate may only be relied upon by Relying Parties and only in accordance with the Certificate Policy found at https://letsencrypt.org/repository/' . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11 (sha256WithRSAEncryption) . . . . . . . . [c:0|t:5|false] NULL . . . . [c:0|t:3|false] BIT STRING (2048 bits) 0094192f7813e7f6233dbb1813120e4f9e6aad17c3432a12a2609d9f080f8dbb10ca658ba50b1f49975f21166ae039a97d9773e44f36a685590f7cfd2760905b9b9b15031ffa870d85203004c8c8c533c58aecb507655941aaaf053ae04dce06771c7b4e59771030e187ec60ef6b24c86b570a11361bdd48de3d67f495d17b08c027fff7bc46eb94728aaf21d3ce743f73725b8a2faf89494f79af1ae8869d798dd3528a1d472c5c3e915cf634cd915a077adb763bfb51bd8dad46b53ede7172b489b840bd5ef8cc652efc6ef1b693b8cd68b9a0dcd19051c3bbdb0a35e145fc9b2b6447a2a236df066486758a958adcb832cd2842328e83a94a6a1f9d61a74a3d