www.airtahitinui.co.jp

Issued by Cybertrust Japan Public CA G3

About this certificate


This digital certificate with serial number 2b:85:47:06:70:55:f0:9d:5b:c6:4c:69:ae:ab:6e:21:fd:9f:32:c6 was issued on by Cybertrust Japan Co., Ltd. .

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: KeyUsage extension SHOULD be marked as critical when present

AIR TAHITI NUI

Organization: AIR TAHITI NUI
State / Province: Tokyo
Locality: Chiyoda-ku
Country: JP

Cybertrust Japan Co., Ltd.

Organization: Cybertrust Japan Co., Ltd.
State / Province: Tokyo
Locality: Chiyoda-ku
Country: JP

Time since certificate expired

This certificate has expire since

Certificate Details

Serial Number (hex): 2b:85:47:06:70:55:f0:9d:5b:c6:4c:69:ae:ab:6e:21:fd:9f:32:c6
Serial Number (int): 248458789420144789929407421662115150752810742470
Serial Number lenght: 158 bits, 20 octets

SubjectKeyId: d2:ed:db:10:d1:d2:86:82:7f:a0:df:c4:52:4d:58:64:6f:f0:24:a7
AuthorityKeyId: 73:a8:08:53:29:b8:15:fb:99:80:e5:c5:37:d8:f8:39:7b:a4:13:06

Fingerprint (sha1): 37:cf:b4:ef:ca:9b:99:67:fa:d3:ea:ea:32:d7:46:11:0b:d3:a6:4d
Fingerprint (sha256): 1d:55:6c:bc:88:63:fe:ba:a2:b2:a8:3a:1f:0a:86:65:d2:fa:9a:c6:58:82:4c:de:df:8e:02:28:ef:75:50:53

Issuing Certificate URL: http://sureseries-crl.cybertrust.ne.jp/SureServer/ctjpubcag3/ctjpubcag3.crt

Revocation information

OCSP Server: http://ocsp.cybertrust.ne.jp/OcspServer
CRL Distribution Point: http://sureseries-crl.cybertrust.ne.jp/SureServer/ctjpubcag3/cdp.crl

Check the revocation status for the current certificate on www.airtahitinui.co.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
Client Authentication

Extensions

9 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: www.airtahitinui.co.jp

Certificate

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

Certificate (PEM)

-----BEGIN CERTIFICATE----- MIIFpzCCBI+gAwIBAgIUK4VHBnBV8J1bxkxprqtuIf2fMsYwDQYJKoZIhvcNAQEF BQAwWjELMAkGA1UEBhMCSlAxIzAhBgNVBAoTGkN5YmVydHJ1c3QgSmFwYW4gQ28u LCBMdGQuMSYwJAYDVQQDEx1DeWJlcnRydXN0IEphcGFuIFB1YmxpYyBDQSBHMzAe Fw0xMzA5MTgwNjQ1MzdaFw0xNDExMDgxNDU5MDBaMGwxCzAJBgNVBAYTAkpQMQ4w DAYDVQQIEwVUb2t5bzETMBEGA1UEBxMKQ2hpeW9kYS1rdTEXMBUGA1UEChMOQUlS IFRBSElUSSBOVUkxHzAdBgNVBAMTFnd3dy5haXJ0YWhpdGludWkuY28uanAwggEi MA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQDQTKwUPTZcwNQds9jUqw78pSdU iyo+yUOtwwyylYstB6/eJvlb+Xwet7klP68UfvUvZN63EoEufg2wj3d/+vI46rFL cISUa9a43cXK9spoL7eKKwhjrO/QSxcovmaHf7apSaj3yHlt2ngeUYqadPYDDRXE 6U3VH8RJoFxvvZgdFzdSfZeZi7p+e1jpUzBJ7duHFuTph7alJYYXreTMbGhwSFJh 1FOXvuJ59yItiqPQ0C0iaWsLUH3oYWDqe/P2elLaDvOGnRJPmHYjwEO6UmkcgYcn 5hnT/Ew78EybgKOpjye2nblMSEfy8D4C+iMiCBFIZHrJQ2iMT+AgRxsmkAP9AgMB AAGjggJRMIICTTAJBgNVHRMEAjAAMIG4BgNVHSAEgbAwga0wgaoGCCqDCIybEQEB MIGdMFcGCCsGAQUFBwICMEsaSUZvciBtb3JlIGRldGFpbHMsIHBsZWFzZSB2aXNp dCBvdXIgd2Vic2l0ZSBodHRwczovL3d3dy5jeWJlcnRydXN0Lm5lLmpwIC4wQgYI KwYBBQUHAgEWNmh0dHBzOi8vd3d3LmN5YmVydHJ1c3QubmUuanAvc3NsL3JlcG9z aXRvcnkvaW5kZXguaHRtbDAhBgNVHREEGjAYghZ3d3cuYWlydGFoaXRpbnVpLmNv LmpwMIGeBggrBgEFBQcBAQSBkTCBjjAzBggrBgEFBQcwAYYnaHR0cDovL29jc3Au Y3liZXJ0cnVzdC5uZS5qcC9PY3NwU2VydmVyMFcGCCsGAQUFBzAChktodHRwOi8v c3VyZXNlcmllcy1jcmwuY3liZXJ0cnVzdC5uZS5qcC9TdXJlU2VydmVyL2N0anB1 YmNhZzMvY3RqcHViY2FnMy5jcnQwCwYDVR0PBAQDAgWgMB0GA1UdJQQWMBQGCCsG AQUFBwMBBggrBgEFBQcDAjAfBgNVHSMEGDAWgBRzqAhTKbgV+5mA5cU32Pg5e6QT BjBVBgNVHR8ETjBMMEqgSKBGhkRodHRwOi8vc3VyZXNlcmllcy1jcmwuY3liZXJ0 cnVzdC5uZS5qcC9TdXJlU2VydmVyL2N0anB1YmNhZzMvY2RwLmNybDAdBgNVHQ4E FgQU0u3bENHShoJ/oN/EUk1YZG/wJKcwDQYJKoZIhvcNAQEFBQADggEBAD7oWPHJ bxcPDtl8QID/59vwtEty2YDbIS3B+KY2i2ATeJn25d6NuGMFnTBRaN9sOf45P8LL pQ1tQCcqyGj1IwEKrDzp29XlFS0n5i5+1GnOGdYbPfcyn0sj9MvavWFu8788QwwL 94h+XUVjZ1Zd9LTU5aKoXULZP2BrVHxR3r95OLyIvAxQJ82YbaeI+Lq1nCFpi+0I AykI43RzQkHGt/i8h0dE8HZe53itUjMI1/HLPBQnrGESUMwP48FCun+8Qdd6+XKY EwOaWBkuI8lO1s30O67lg4iOJYjj2lB7jpclJEIHOawNYOdR6lK/c1F0Bwb3IAz8 1yz0cHZhnFJhXP0= -----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0EysFD02XMDUHbPY1KsO /KUnVIsqPslDrcMMspWLLQev3ib5W/l8Hre5JT+vFH71L2TetxKBLn4NsI93f/ry OOqxS3CElGvWuN3FyvbKaC+3iisIY6zv0EsXKL5mh3+2qUmo98h5bdp4HlGKmnT2 Aw0VxOlN1R/ESaBcb72YHRc3Un2XmYu6fntY6VMwSe3bhxbk6Ye2pSWGF63kzGxo cEhSYdRTl77iefciLYqj0NAtImlrC1B96GFg6nvz9npS2g7zhp0ST5h2I8BDulJp HIGHJ+YZ0/xMO/BMm4CjqY8ntp25TEhH8vA+AvojIggRSGR6yUNojE/gIEcbJpAD /QIDAQAB -----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 248458789420144789929407421662115150752810742470 . . . . . . . . [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 2.5.4.10 (organizationName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Cybertrust Japan Co., Ltd.' . . . . . . . . . . . . [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 'Cybertrust Japan Public CA G3' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2013-09-18 06:45:37 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2014-11-08 14:59:00 +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 2.5.4.6 (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 2.5.4.8 (stateOrProvinceName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Tokyo' . . . . . . . . . . . . [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 'Chiyoda-ku' . . . . . . . . . . . . [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 'AIR TAHITI NUI' . . . . . . . . . . . . [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 'www.airtahitinui.co.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 26295375895924679531738631741424046629457487765181411802164566067000338055756168083357182512644989537237539211763020888485542392357574816049375251022745242812334849118895880567208867990698538379523062278381817453312528565813715370883851366189674896241510286066064559859700338547481606508010763338515250054399753684989301261553631341706330018952441370175407843717445536437246201856409129923385766950531866281279456270916266646080571181915217278405025327572162770926415474005780132722808951932308315059239275084211310773443719934259397835643664486168744966554280930041467439908839116151109356299704168064794701964772349 . . . . . . . . . . . . . . . . . . . . [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 2.5.29.19 (basicConstraints) . . . . . . . . . . . . . . . . . . . . [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 2.5.29.32 (certificatePolicies) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (176 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.392.200081.1.1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.2.2 (unotice) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:26|false] VisibleString, ISO646String [70 111 114 32 109 111 114 101 32 100 101 116 97 105 108 115 44 32 112 108 101 97 115 101 32 118 105 115 105 116 32 111 117 114 32 119 101 98 115 105 116 101 32 104 116 116 112 115 58 47 47 119 119 119 46 99 121 98 101 114 116 114 117 115 116 46 110 101 46 106 112 32 46] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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://www.cybertrust.ne.jp/ssl/repository/index.html' . . . . . . . . . . . . . . . . [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 (26 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.airtahitinui.co.jp' . . . . . . . . . . . . . . . . [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 (145 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.cybertrust.ne.jp/OcspServer' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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://sureseries-crl.cybertrust.ne.jp/SureServer/ctjpubcag3/ctjpubcag3.crt' . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.15 (keyUsage) . . . . . . . . . . . . . . . . . . . . [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 2.5.29.35 (authorityKeyIdentifier) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (24 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|false] OtherName 73a8085329b815fb9980e5c537d8f8397ba41306 . . . . . . . . . . . . . . . . [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 (78 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://sureseries-crl.cybertrust.ne.jp/SureServer/ctjpubcag3/cdp.crl' . . . . . . . . . . . . . . . . [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) d2eddb10d1d286827fa0dfc4524d58646ff024a7 . . . . [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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