webwork.math.is.tohoku.ac.jp

- Tohoku University -

Issued by NII Open Domain CA - G4

About this certificate

This digital certificate with serial number 25:44:27:de:ef:9f:39:34 was issued on by National Institute of Informatics.

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Tohoku University

Organization: Tohoku University
Organization unit: Graduate School of Information Sciences
Locality: Academe
Country: JP

National Institute of Informatics

Organization: National Institute of Informatics
Locality: Academe
Country: JP

This certificate has expire since

Certificate Details

Serial Number (hex): 25:44:27:de:ef:9f:39:34
Serial Number (int): 2685315116276070708
Serial Number lenght: 62 bits, 8 octets

SubjectKeyId: a5:03:b1:d5:a8:66:7a:ac:c4:f2:13:9e:9e:e2:0c:01:85:ce:72:ad
AuthorityKeyId: 19:0b:6f:39:1f:31:03:34:5f:e4:d2:40:1f:37:e6:8d:e7:62:39:7c

Fingerprint (sha1): 6c:5b:11:de:6b:63:c0:6b:c7:59:85:90:f1:22:29:e5:fd:9b:3d:6f
Fingerprint (sha256): 0b:37:ec:f0:21:b0:4e:49:97:82:4f:0e:38:1d:52:eb:2c:ad:76:b1:42:e3:f4:6e:f9:94:14:a5:6b:37:c5:a3


Revocation information

OCSP Server: http://niig4.ocsp.secomtrust.net
CRL Distribution Point: http://repo1.secomtrust.net/sppca/nii/odca3/fullcrlg4.crl

Check the revocation status for certificate webwork.math.is.tohoku.ac.jp

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for webwork.math.is.tohoku.ac.jp

Public Key Algorithm

RSA

Key Size

2048

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

webwork.math.is.tohoku.ac.jp

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Certificate

The complete raw certificate details for webwork.math.is.tohoku.ac.jp in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----
MIIFCDCCA/CgAwIBAgIIJUQn3u+fOTQwDQYJKoZIhvcNAQELBQAwbTELMAkGA1UE
BhMCSlAxEDAOBgNVBAcTB0FjYWRlbWUxKjAoBgNVBAoTIU5hdGlvbmFsIEluc3Rp
dHV0ZSBvZiBJbmZvcm1hdGljczEgMB4GA1UEAxMXTklJIE9wZW4gRG9tYWluIENB
IC0gRzQwHhcNMTUwNTIxMDAxMjA2WhcNMTcwNjIwMDAxMjA2WjCBlDELMAkGA1UE
BhMCSlAxEDAOBgNVBAcTB0FjYWRlbWUxGjAYBgNVBAoTEVRvaG9rdSBVbml2ZXJz
aXR5MTAwLgYDVQQLEydHcmFkdWF0ZSBTY2hvb2wgb2YgSW5mb3JtYXRpb24gU2Np
ZW5jZXMxJTAjBgNVBAMTHHdlYndvcmsubWF0aC5pcy50b2hva3UuYWMuanAwggEi
MA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQChVijJS3UiXeiazjPmmNGO4uC2
grPF/Ba4p2vXS2OvoHRaAgOawSK1c+2nxDUR6x1IICEtQF2amYopFb04xMaTzkFQ
aW8jkVLJ79omDUhoqTPreFJ2MZJs7dS/rzATCPB+YfGJuUEGCoNdC0/evt1dub+s
BhtGpemRitI133EI7xWqVf3tmQyS+jZv5zoN70xGQEvjmIz7FU/6G2m/PWaw4S5T
veVKk+dSDF9QJOJRwXDEQtgRsD9nou/SQexnoU30VpWP/aiPITQjMdOmjq9eJaK9
/IChUZdnWq0t8Hy9Axca7Fnbej/X3UWusM78Q77st0oLIa/bJEwCZcGmYxSfAgMB
AAGjggGCMIIBfjAdBgNVHSUEFjAUBggrBgEFBQcDAQYIKwYBBQUHAwIwHwYDVR0j
BBgwFoAUGQtvOR8xAzRf5NJAHzfmjediOXwwSgYDVR0fBEMwQTA/oD2gO4Y5aHR0
cDovL3JlcG8xLnNlY29tdHJ1c3QubmV0L3NwcGNhL25paS9vZGNhMy9mdWxsY3Js
ZzQuY3JsMA4GA1UdDwEB/wQEAwIFoDAdBgNVHQ4EFgQUpQOx1ahmeqzE8hOenuIM
AYXOcq0wWgYDVR0gBFMwUTBPBgwrBgEEAYH8CAMCAQEwPzA9BggrBgEFBQcCARYx
aHR0cHM6Ly9yZXBvMS5zZWNvbXRydXN0Lm5ldC9zcGNwcC9jcHMvaW5kZXguaHRt
bDA8BggrBgEFBQcBAQQwMC4wLAYIKwYBBQUHMAGGIGh0dHA6Ly9uaWlnNC5vY3Nw
LnNlY29tdHJ1c3QubmV0MCcGA1UdEQQgMB6CHHdlYndvcmsubWF0aC5pcy50b2hv
a3UuYWMuanAwDQYJKoZIhvcNAQELBQADggEBAB+iPYJhvB44ycGYy3l/1pjargut
VFVnz88Vdxn6y/oQ4Q6zk22ZUjO7O9blytjHdl4ck1NlL7DZ7tx7ffhhsimBSY8f
OZICIuPxeyuVfttG81V6y+RP2VBoTHCj2a9O+gvXVXV4D1xR/L+7NX6JUpDIaest
BQjTASsoBQLCOMRctQAaMM2ZkcFveRwYC5YnNLRwPXfUn/uyUGnHFzYLfQSTBizJ
uSdJp8H/x5wplInOVEc8CHrLsWX+jm1fifV52P7Bl/y56JQroN2Q1i6dboSzK3A6
VLRuLDKszGqEZdJOe3TZLqKoMzcEagI8x754M1Oi9a/6rwPKed3nhOpbG9c=
-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAoVYoyUt1Il3oms4z5pjR
juLgtoKzxfwWuKdr10tjr6B0WgIDmsEitXPtp8Q1EesdSCAhLUBdmpmKKRW9OMTG
k85BUGlvI5FSye/aJg1IaKkz63hSdjGSbO3Uv68wEwjwfmHxiblBBgqDXQtP3r7d
Xbm/rAYbRqXpkYrSNd9xCO8VqlX97ZkMkvo2b+c6De9MRkBL45iM+xVP+htpvz1m
sOEuU73lSpPnUgxfUCTiUcFwxELYEbA/Z6Lv0kHsZ6FN9FaVj/2ojyE0IzHTpo6v
XiWivfyAoVGXZ1qtLfB8vQMXGuxZ23o/191FrrDO/EO+7LdKCyGv2yRMAmXBpmMU
nwIDAQAB
-----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 2685315116276070708
 . . . . . . . . [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 '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 'Academe'
 . . . . . . . . . . . . [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 2.5.4.3 (commonName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'NII Open Domain CA - G4'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2015-05-21 00:12:06 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2017-06-20 00:12:06 +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 'Academe'
 . . . . . . . . . . . . [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 'Tohoku 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 'Graduate School of Information Sciences'
 . . . . . . . . . . . . [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 'webwork.math.is.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 (2160 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 20366853844476770600634685914385936999183093843603456326019903713952791482052632036315959541557089878372536060966044053801420294052849359501462719397424596695563306176382072751033618214399485350223955650617614585196671895960703179505395989702773779703076761991483908879655469111796106803336393296854680985916446884850688967173553259380062010916886993746001822265783235966661585627062703641012202202287468957455269327664828554052848231084379302813020364896755560066206993211619163724736107494636249883325015967056870562375055780434200437659995664038616268116718607665237594221288157329926018891744116416525746384868511
 . . . . . . . . . . . . . . . . . . . . [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 2.5.29.37 (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 190b6f391f3103345fe4d2401f37e68de762397c
 . . . . . . . . . . . . . . . . [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 (67 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/odca3/fullcrlg4.crl'
 . . . . . . . . . . . . . . . . [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 2.5.29.14 (subjectKeyIdentifier)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (20 bytes)
							a503b1d5a8667aacc4f2139e9ee20c0185ce72ad
 . . . . . . . . . . . . . . . . [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 (83 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.32264.3.2.1.1
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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 'https://repo1.secomtrust.net/spcpp/cps/index.html'
 . . . . . . . . . . . . . . . . [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 (48 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://niig4.ocsp.secomtrust.net'
 . . . . . . . . . . . . . . . . [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 (32 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'webwork.math.is.tohoku.ac.jp'
 . . . . [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)
		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