st-staff.hc.itc.keio.ac.jp

Issued by

About this certificate


This digital certificate with serial number 0f:18:8e:d1:41:05:1b:41 was issued on by National Institute of Informatics .

While the certificate has already expired and will cause a warning or error message in the browser it's still listed on this site to allow you to look back on previously issued certificates.

Cerificate errors/warnings *beta

  • ERROR: Certificate contains no Authority Info Access Issuers
  • WARNING: Certificate contains unknown extension ([2.16.840.1.113730.1.1])
  • ERROR: stateOrProvinceName is required if organizationName is set

Keio University

Organization: Keio University
Organization unit: Hiyoshi ITC
Locality: Academe2
Country: JP

National Institute of Informatics

Organization: National Institute of Informatics
Organization unit: UPKI
Organization unit: NII Open Domain CA - G2
Locality: Academe2
Country: JP

Time since certificate expired

This certificate has expire since

Certificate Details

Serial Number (hex): 0f:18:8e:d1:41:05:1b:41
Serial Number (int): 1087776339400137537
Serial Number lenght: 60 bits, 8 octets

SubjectKeyId: c6:fc:7b:97:bf:ea:8c:af:e6:b1:96:13:80:ad:8b:c8:57:30:5e:ee
AuthorityKeyId: 7b:0a:07:f7:18:ca:8c:0e:d6:da:bc:50:80:6c:2c:47:02:d1:0d:fb

Fingerprint (sha1): f3:56:6a:53:a1:61:c2:10:df:a6:92:b0:a9:f0:94:4e:61:4a:7c:bd
Fingerprint (sha256): 00:37:d9:4e:c3:c9:cc:f6:e4:0c:a2:58:94:54:2b:cf:5e:a4:35:2f:50:80:f1:ba:b6:55:cb:2a:1c:a7:04:b6


Revocation information

CRL Distribution Point: http://repo1.secomtrust.net/sppca/nii/odca2/fullcrl.crl

Check the revocation status for the current certificate on st-staff.hc.itc.keio.ac.jp
1
DNS Names
0
Email Addresses
0
IP Addresses

Advanced Certificate Properties

Technical details about this certificate


Public Key Algorithm

RSA

Key Size

2048

Signature Algorithm

SHA1 with RSA



Key Usage

Digital Signature
Key Encipherment

Extended Key Usages

Server Authentication

Extensions

8 extensions
No unhandled critical extensions



CA Certificate

This is not a CA certificate

Subject Alternative Names

This certificate doesn't contain any other subject alternative names besides the common name of the subject: st-staff.hc.itc.keio.ac.jp

Certificate

The complete raw certificate details in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE----- MIIEyzCCA7OgAwIBAgIIDxiO0UEFG0EwDQYJKoZIhvcNAQEFBQAwfTELMAkGA1UE BhMCSlAxETAPBgNVBAcTCEFjYWRlbWUyMSowKAYDVQQKEyFOYXRpb25hbCBJbnN0 aXR1dGUgb2YgSW5mb3JtYXRpY3MxDTALBgNVBAsTBFVQS0kxIDAeBgNVBAsTF05J SSBPcGVuIERvbWFpbiBDQSAtIEcyMB4XDTExMDYyMzAyMzgzNFoXDTEzMDcyMjAy NDgzNFowdTELMAkGA1UEBhMCSlAxETAPBgNVBAcTCEFjYWRlbWUyMRgwFgYDVQQK Ew9LZWlvIFVuaXZlcnNpdHkxFDASBgNVBAsTC0hpeW9zaGkgSVRDMSMwIQYDVQQD ExpzdC1zdGFmZi5oYy5pdGMua2Vpby5hYy5qcDCCASIwDQYJKoZIhvcNAQEBBQAD ggEPADCCAQoCggEBALUl8u/SyNZy/c36rhCDOeMg9V1QIVmOHx4C6Ri9o/xlJllC UORgm0SbkwZwmGlkAtMQ9WEg7SpL4vzBX3F1whknfbXfuuKq7iZenE5ZKSOs9uNg UBRZhInL+9DPxEMfy8x4NlKAMuWDUZ9FpLvUbRffC76OOFGR0WtjOQsgInhlxZS6 upgJt7IHZwIA2sWQXIQCi0L2pxW+spzk48bCgRlNdaeGtgVB/xbRhH9VHT7e5DWO o0oMmx0XbqDRmcotoo6MvKOhexxbGeR8bhpHlqkJ7yw7xXr5CqYRvxu0BjR6hYQL bOPzPaOTX7FW4mQPmmR93D7tz7aoxow8vS80qMECAwEAAaOCAVUwggFRMA4GA1Ud DwEB/wQEAwIFoDATBgNVHSUEDDAKBggrBgEFBQcDATAdBgNVHQ4EFgQUxvx7l7/q jK/msZYTgK2LyFcwXu4wHwYDVR0jBBgwFoAUewoH9xjKjA7W2rxQgGwsRwLRDfsw JQYDVR0RBB4wHIIac3Qtc3RhZmYuaGMuaXRjLmtlaW8uYWMuanAwZgYDVR0gBF8w XTBNBgoqgwiMnB4BAgIBMD8wPQYIKwYBBQUHAgEWMWh0dHBzOi8vcmVwbzEuc2Vj b210cnVzdC5uZXQvc3BjcHAvY3BzL2luZGV4Lmh0bWwwDAYKKoMIjJsbZIcFATBI BgNVHR8EQTA/MD2gO6A5hjdodHRwOi8vcmVwbzEuc2Vjb210cnVzdC5uZXQvc3Bw Y2EvbmlpL29kY2EyL2Z1bGxjcmwuY3JsMBEGCWCGSAGG+EIBAQQEAwIGQDANBgkq hkiG9w0BAQUFAAOCAQEABB/MlmD5mEt0gdCS84zK3gwiL5oFsQKbtcmatjPccuQV hGy+VfPMxgOnZIjlY//WwLmgaRQ99rOnF8vSVfsnDvOoFCeruUosr5ueKNma4tW+ 1UIbGKV3xA7r54dvCj5MTlse0HmZv11mCQlhzRGw2zntNzJiWx7JFDC0MdyMTWmB Gpr2gwXp58P1op+Gg55I6FVUK7SDlH4qFJQKOA7o1UNQDXw+84j1NdpMn8c0EVeJ JJVhYP9sFIfg9rjeBiFSHeg8A10JDUdHqJcx1u+Pj3OZclq07+f1mTA7K0qCN698 u7YKP9+uVEIs6LXFF4cR3dZjB9wGY6At17q4h988dQ== -----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAtSXy79LI1nL9zfquEIM5 4yD1XVAhWY4fHgLpGL2j/GUmWUJQ5GCbRJuTBnCYaWQC0xD1YSDtKkvi/MFfcXXC GSd9td+64qruJl6cTlkpI6z242BQFFmEicv70M/EQx/LzHg2UoAy5YNRn0Wku9Rt F98Lvo44UZHRa2M5CyAieGXFlLq6mAm3sgdnAgDaxZBchAKLQvanFb6ynOTjxsKB GU11p4a2BUH/FtGEf1UdPt7kNY6jSgybHRduoNGZyi2ijoy8o6F7HFsZ5HxuGkeW qQnvLDvFevkKphG/G7QGNHqFhAts4/M9o5NfsVbiZA+aZH3cPu3PtqjGjDy9LzSo wQIDAQAB -----END PUBLIC KEY-----

ASN1 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 1087776339400137537 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.5 (sha1WithRSAEncryption) . . . . . . . . . . . . [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 'JP' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.7 (localityName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Academe2' . . . . . . . . . . . . [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 'National Institute of Informatics' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.11 (organizationalUnitName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'UPKI' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.11 (organizationalUnitName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'NII Open Domain CA - G2' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2011-06-23 02:38:34 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2013-07-22 02:48:34 +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 2.5.4.6 (countryName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'JP' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.7 (localityName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Academe2' . . . . . . . . . . . . [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 'Keio University' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.11 (organizationalUnitName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Hiyoshi ITC' . . . . . . . . . . . . [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 'st-staff.hc.itc.keio.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 (2160 bits) . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 22867846534363128749440526740113907295911562924146762113438431414915691981861493691486407336726849605830100804649552312784595080749682101354897056087567706147217370567213570412217619421983099898101571137661387858410410224794167434248826877752473103355640530266774095115123362640852843801015388401671512061700252121697984092485959902978791974546848808918508945294558902462944004290209658186500379103879373310100015387670979848436627704329952347463405889322750119352553569814391132238789466596863500746936789405090774619047747939557801119631923790484355651111276430321270241482287587084730150886371328416308360073488577 . . . . . . . . . . . . . . . . . . . . [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 (12 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: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) c6fc7b97bfea8cafe6b1961380ad8bc857305eee . . . . . . . . . . . . . . . . [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 7b0a07f718ca8c0ed6dabc50806c2c4702d10dfb . . . . . . . . . . . . . . . . [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 'st-staff.hc.itc.keio.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 (95 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.392.200222.1.2.2.1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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 'https://repo1.secomtrust.net/spcpp/cps/index.html' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.392.200091.100.901.1 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.31 (cRLDistributionPoints) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (65 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|true] OtherName . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|true] OtherName . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://repo1.secomtrust.net/sppca/nii/odca2/fullcrl.crl' . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.16.840.1.113730.1.1 (netscape-cert-type) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (4 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (2 bits) 0640 . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.5 (sha1WithRSAEncryption) . . . . . . . . [c:0|t:5|false] NULL . . . . [c:0|t:3|false] BIT STRING (2048 bits) 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