www.carf.e.u-tokyo.ac.jp
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:78:1c:53:ea:02:73:f0:59:72:df:d8:42:88:b3:2f:6d:01 was issued on by Let's Encrypt.
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We have idenified some issues with this certificate:
- Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)
Certificate Subject
CN=www.carf.e.u-tokyo.ac.jp
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:78:1c:53:ea:02:73:f0:59:72:df:d8:42:88:b3:2f:6d:01Serial Number (int): 302208395916592776510866371616064144370945
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 12:d2:7e:73:2d:d7:40:36:0f:c8:3e:72:65:4d:b9:15:0a:ca:13:4e
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): ee:1e:ed:29:ee:6b:f6:6f:35:d1:6b:54:b0:9a:e4:0d:07:1f:1e:c6
Fingerprint (sha256): 03:d6:f3:21:35:b8:2f:00:44:38:2a:12:2d:95:34:fd:92:0b:eb:33:ae:dc:4e:68:ec:58:17:6d:4f:23:a3:1f
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate www.carf.e.u-tokyo.ac.jp
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for www.carf.e.u-tokyo.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
9 extensions
No
unhandled critical extensions
CA Certificate
This is not a CA certificate
Subject Alternative Names
www.carf.e.u-tokyo.ac.jp
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Certificate
The complete raw certificate details for www.carf.e.u-tokyo.ac.jp in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFZzCCBE+gAwIBAgISA3gcU+oCc/BZct/YQoizL20BMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTAzMjQwMTU1MTVaFw0x OTA2MjIwMTU1MTVaMCMxITAfBgNVBAMTGHd3dy5jYXJmLmUudS10b2t5by5hYy5q cDCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBALNJekygkMQSrPlv/I1x mOhCEh0T72Okm/TtRLHTMpkDDxI27EKVvWEpvC60xPIQIpTJCjYXlfg68Bd5jXjC yv44B6Z5tYeR6ix3Q3Xentm3RBnPHcEbhA0jryEr30+Kh2Q7OVSJVvL4JlZKM+YC bFb8XW8ZIPW9w30XHT+QNXKfd9fviTnbay2sa0NCC0tmAPHv5CQyNIr4LHJWfv4r MHTB7DWnHpc7QPJqbd7U8fr0qgSuOfNbiw48BQRXaGjJZnbnZqiToe49d3BwksNb tFpVR75mlIbHRELDz+F0oAcmyxgKp4WZs+HCwXThMTu7XJ3Q9qeHrtaxLLgbeFa3 U7kCAwEAAaOCAmwwggJoMA4GA1UdDwEB/wQEAwIFoDAdBgNVHSUEFjAUBggrBgEF BQcDAQYIKwYBBQUHAwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4EFgQUEtJ+cy3XQDYP yD5yZU25FQrKE04wHwYDVR0jBBgwFoAUqEpqYwR93brm0Tm3pkVl7/Oo7KEwbwYI KwYBBQUHAQEEYzBhMC4GCCsGAQUFBzABhiJodHRwOi8vb2NzcC5pbnQteDMubGV0 c2VuY3J5cHQub3JnMC8GCCsGAQUFBzAChiNodHRwOi8vY2VydC5pbnQteDMubGV0 c2VuY3J5cHQub3JnLzAjBgNVHREEHDAaghh3d3cuY2FyZi5lLnUtdG9reW8uYWMu anAwTAYDVR0gBEUwQzAIBgZngQwBAgEwNwYLKwYBBAGC3xMBAQEwKDAmBggrBgEF BQcCARYaaHR0cDovL2Nwcy5sZXRzZW5jcnlwdC5vcmcwggEDBgorBgEEAdZ5AgQC BIH0BIHxAO8AdgDiaUuuJujpQAnohhu2O4PUPuf+dIj7pI8okwGd3fHb/gAAAWmt n6ejAAAEAwBHMEUCIQCT8zMvoHIaQKDnzI2Vh6Fnkx1jV74ZEzWIfmGcgnswKAIg AY5eBlIoGqGRRg9Q90yqZxHCNBloo1VD45fxLas53lwAdQApPFGWVMg5ZbqqUPxY B9S3b79Yeily3KTDDPTlRUf0eAAAAWmtn6oOAAAEAwBGMEQCIALuVCpGDRe8ktjR kiJlmHakwbRTkDGqigBfTWEy0woLAiBfvzc/OgjDqbFwe5CR5VbftEIJZmmvZQ8r X0Z/mhVbADANBgkqhkiG9w0BAQsFAAOCAQEAHPxer1C3+K7F/p9DhFtAehX99wxK nFW8p2/hTwH5iSxjG/G8fxX+lhGOLLKrgYR0MUH/x6eDw4y5/zmV63hxjoPXJaTJ MuWToc/c1MmloxF3HtWYF23/lyQm6Ju+tF5P8/Rt67b4wJ9F/i2ij85EHKl0bLvD fJkZIgaWCCuxo063QMUpekk5iLS8nkghn+/gspX4AwSjOiZvdEEPDFtndMAWm8fG lXCN0QOCEC8rZdJOEmMZC1gVG2ohbYkpJevsDoh9UGY7umlTzQaCftWMVPgBl89F HjOO/dCHl9g+NCvED0E0E26GzdE7CmDFlyAYPX4pfIDpKon0WICT4JhcTg== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAs0l6TKCQxBKs+W/8jXGY 6EISHRPvY6Sb9O1EsdMymQMPEjbsQpW9YSm8LrTE8hAilMkKNheV+DrwF3mNeMLK /jgHpnm1h5HqLHdDdd6e2bdEGc8dwRuEDSOvISvfT4qHZDs5VIlW8vgmVkoz5gJs Vvxdbxkg9b3DfRcdP5A1cp931++JOdtrLaxrQ0ILS2YA8e/kJDI0ivgsclZ+/isw dMHsNacelztA8mpt3tTx+vSqBK4581uLDjwFBFdoaMlmdudmqJOh7j13cHCSw1u0 WlVHvmaUhsdEQsPP4XSgBybLGAqnhZmz4cLBdOExO7tcndD2p4eu1rEsuBt4VrdT uQIDAQAB -----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 302208395916592776510866371616064144370945 . . . . . . . . [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 2019-03-24 01:55:15 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-06-22 01:55:15 +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 'www.carf.e.u-tokyo.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 22632889808875308377571815121562152844153842898728952107533763457581932586403576868014851353851123794495420306507039502086616914784713304124347722621384446346303645215943070071180796940952839267243845528081970681300789857864723839324003898989927950663402733543221011566301016014049936907010229600751072773423113999181271584913937635030527465225349770824208633092954206552387296023856660900514948398612541893184114269104441450606697148197433349114735280690865319098677467648811741170430798007464790871046330875561895707778600847390721856948571302072892087732829005055787446102920064185198718902232474514142645963936697 . . . . . . . . . . . . . . . . . . . . [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) 12d27e732dd740360fc83e72654db9150aca134e . . . . . . . . . . . . . . . . [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 (99 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 (28 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.carf.e.u-tokyo.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 (69 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 1.3.6.1.4.1.11129.2.4.2 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (244 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes) 00ef007600e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe00000169ad9fa7a3000004030047304502210093f3332fa0721a40a0e7cc8d9587a167931d6357be191335887e619c827b30280220018e5e0652281aa191460f50f74caa6711c2341968a35543e397f12dab39de5c007500293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f47800000169ad9faa0e0000040300463044022002ee542a460d17bc92d8d19222659876a4c1b4539031aa8a005f4d6132d30a0b02205fbf373f3a08c3a9b1707b9091e556dfb442096669af650f2b5f467f9a155b00 . . . . [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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