nsl.issp.u-tokyo.ac.jp
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:d8:50:99:5f:fd:a1:ca:8f:8a:2f:3f:cf:e5:0e:98:34:bc 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=nsl.issp.u-tokyo.ac.jp
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:d8:50:99:5f:fd:a1:ca:8f:8a:2f:3f:cf:e5:0e:98:34:bcSerial Number (int): 334944983658209306576881912241891388699836
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 18:99:fb:dd:e5:32:23:32:c9:ce:6b:9b:45:00:e4:68:86:5d:69:44
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 76:10:11:84:7f:b8:d2:bd:b5:e6:3f:d5:ea:4f:ad:47:c4:2b:53:11
Fingerprint (sha256): 04:76:85:93:98:70:54:03:9f:5e:a3:26:b1:62:a6:8a:52:ba:65:20:45:c5:fe:93:bd:64:1d:10:1a:fa:21:d3
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate nsl.issp.u-tokyo.ac.jp
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for nsl.issp.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
nsl.issp.u-tokyo.ac.jp
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Certificate
The complete raw certificate details for nsl.issp.u-tokyo.ac.jp in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFZDCCBEygAwIBAgISA9hQmV/9ocqPii8/z+UOmDS8MA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTA5MDUwNjIwMjZaFw0x OTEyMDQwNjIwMjZaMCExHzAdBgNVBAMTFm5zbC5pc3NwLnUtdG9reW8uYWMuanAw ggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQC5b+ywOstfwUHwOKEv17wD R3FiNRsAYQU5V6PT27VRVBEztJ8XPhDBcoc54GZx0vvBhxhcyr2LpN8qCJ0//wwS vKCGsIVrBnSUxAIRMjlUV8QfK7cgLV/mh+XrVesJq9/XbiFKO1KpFN4MaQXTv11S kqhcSvDWpWz+42zM3Wk+FpyfOCdfvkUkBAcif37uKcQjJ6+NFuiH2tsx+c0PcpJG YefG0y2TpcJi7DXfdPgInarj7y0ci1ICwZL2u8kuNkSQksk0JLb/cRoDf65gHvQM FI6DqpkPjVS/t4ae88zY78/lxl+Fb9P+Z9hvS50RlsK0lJIwHot/hCKDKwId1ejv AgMBAAGjggJrMIICZzAOBgNVHQ8BAf8EBAMCBaAwHQYDVR0lBBYwFAYIKwYBBQUH AwEGCCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYDVR0OBBYEFBiZ+93lMiMyyc5r m0UA5GiGXWlEMB8GA1UdIwQYMBaAFKhKamMEfd265tE5t6ZFZe/zqOyhMG8GCCsG AQUFBwEBBGMwYTAuBggrBgEFBQcwAYYiaHR0cDovL29jc3AuaW50LXgzLmxldHNl bmNyeXB0Lm9yZzAvBggrBgEFBQcwAoYjaHR0cDovL2NlcnQuaW50LXgzLmxldHNl bmNyeXB0Lm9yZy8wIQYDVR0RBBowGIIWbnNsLmlzc3AudS10b2t5by5hYy5qcDBM BgNVHSAERTBDMAgGBmeBDAECATA3BgsrBgEEAYLfEwEBATAoMCYGCCsGAQUFBwIB FhpodHRwOi8vY3BzLmxldHNlbmNyeXB0Lm9yZzCCAQQGCisGAQQB1nkCBAIEgfUE gfIA8AB2AOJpS64m6OlACeiGG7Y7g9Q+5/50iPukjyiTAZ3d8dv+AAABbQBLvAYA AAQDAEcwRQIgeKJZQf0Y7Ilkmj4EDQoDI7/7mqt57/L7Iyn8IC36nTYCIQDR7IOu ymR3oABrFF2+cl/+tkxC6DUorfL4E7kTJf99jQB2AGPy283oO8wszwtyhCdXazOk jWF3j711pjixx2hUS9iNAAABbQBLvDIAAAQDAEcwRQIhAM76bpNvCcKOhN0IDfPy m9algIl8+/XIil/NK99y/+rAAiBkoHF+GUuNkf9yDcx80moSGy+fpRd2IydSOPEl Hkl+SjANBgkqhkiG9w0BAQsFAAOCAQEANIJIDPJ3YOFTkHSXeF/dnT3rDpAbVVeP D8bSWvfKvpdtLQRAntLPnfs2/GjF2eXtxO2SVa3FY8X/ZEQLEhFc3fvqTYwtaDJs v2KeyjxGFIIoP5MUy8dLwKqKgU5Y7GxiahJxMtvL11h3c4X57wFez4dCwAEc2GZ4 N7dHUYA6YbzsndCKYsCiH71LzihFrX8RBmEYDdyR3f/h8XhjkX8JB3KYIoI0Q/9D yt7JQS9cfg7mGo0y2zj3KNSIcZD3qFFC5OMoQbLiv4OLWmVdraOEH/Q39rLYj1vy k7I2Nf2dccIonm8ngcjbfWe6acManbwqgtQiJN7NqKEbmc8BrIsS2g== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAuW/ssDrLX8FB8DihL9e8 A0dxYjUbAGEFOVej09u1UVQRM7SfFz4QwXKHOeBmcdL7wYcYXMq9i6TfKgidP/8M EryghrCFawZ0lMQCETI5VFfEHyu3IC1f5ofl61XrCavf124hSjtSqRTeDGkF079d UpKoXErw1qVs/uNszN1pPhacnzgnX75FJAQHIn9+7inEIyevjRboh9rbMfnND3KS RmHnxtMtk6XCYuw133T4CJ2q4+8tHItSAsGS9rvJLjZEkJLJNCS2/3EaA3+uYB70 DBSOg6qZD41Uv7eGnvPM2O/P5cZfhW/T/mfYb0udEZbCtJSSMB6Lf4QigysCHdXo 7wIDAQAB -----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 334944983658209306576881912241891388699836 . . . . . . . . [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 2019-09-05 06:20:26 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-12-04 06:20:26 +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 'nsl.issp.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 23409278478290769649330632453168802830347558703211147487180561961339215306948562011172553269761309381715282999106329965263150944374319334095479089031117380459011492931401886505947695157659615855157701753686344878963953835726225021708617136406389367577120807544925427942448910192143589892690483138566702360310898282930680630074663514924802046651241418421744295568925379346022973975894650242652521801203737363753890436232024416282680037107755112236701557513670003114482082871424334190088155643928591526435135338851841593755743670357265278558338681863716942041860658592121094126988966936185719767376999908604607991245039 . . . . . . . . . . . . . . . . . . . . [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) 1899fbdde5322332c9ce6b9b4500e468865d6944 . . . . . . . . . . . . . . . . [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 (26 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'nsl.issp.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 (245 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes) 00f0007600e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe0000016d004bbc060000040300473045022078a25941fd18ec89649a3e040d0a0323bffb9aab79eff2fb2329fc202dfa9d36022100d1ec83aeca6477a0006b145dbe725ffeb64c42e83528adf2f813b91325ff7d8d00760063f2dbcde83bcc2ccf0b728427576b33a48d61778fbd75a638b1c768544bd88d0000016d004bbc320000040300473045022100cefa6e936f09c28e84dd080df3f29bd6a580897cfbf5c88a5fcd2bdf72ffeac0022064a0717e194b8d91ff720dcc7cd26a121b2f9fa5177623275238f1251e497e4a . . . . [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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