www.hpc.cc.tohoku.ac.jp
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 04:55:5d:4b:e1:43:dd:95:d2:68:c3:fe:f0:ff:ef:c8:2c:04 was issued on by Let's Encrypt.
This 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. If we have found any compliance issues with this certificate they will be shown below. I hope this certificate review is providing you the detailed information in a simple form you where looking for.
We have idenified some issues with this certificate:
- Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)
Certificate Subject
CN=www.hpc.cc.tohoku.ac.jp
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 04:55:5d:4b:e1:43:dd:95:d2:68:c3:fe:f0:ff:ef:c8:2c:04Serial Number (int): 377497157110112168289963375109250700815364
Serial Number lenght: 139 bits, 18 octets
SubjectKeyId: 3f:c3:fc:2f:ef:57:c3:8e:f3:3c:dd:c6:6c:f8:2c:75:66:83:d9:a1
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 92:de:15:b0:d3:0c:08:57:dd:35:a4:08:ee:fb:53:91:07:fd:0c:e4
Fingerprint (sha256): 08:06:06:d5:fb:d6:ad:24:25:58:7d:92:21:d8:dd:5a:93:1a:0a:dc:3f:30:c4:0b:29:d3:62:15:e4:d4:51:e7
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.hpc.cc.tohoku.ac.jp
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for www.hpc.cc.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
9 extensions
No
unhandled critical extensions
CA Certificate
This is not a CA certificate
Subject Alternative Names
www.hpc.cc.tohoku.ac.jp
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Certificate
The complete raw certificate details for www.hpc.cc.tohoku.ac.jp in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFZzCCBE+gAwIBAgISBFVdS+FD3ZXSaMP+8P/vyCwEMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0yMDAzMTgxNjUyMjlaFw0y MDA2MTYxNjUyMjlaMCIxIDAeBgNVBAMTF3d3dy5ocGMuY2MudG9ob2t1LmFjLmpw MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAyhAQJRbRCZsJgFJPFjhr kk5yEozH/WVoFfhoFJfRWHh38w869EeqVuStokknafxzzBSmlj7PkZTlYVlT88N1 SNMy+6PsBhWdwRXUmAAZyRLsFq2Rhm4hoZk0jvfYR22n61saWGE0+5ewsVIYrX33 ywxhPe3qqnrSsje88Hu+0b/wi89AOqlHpw3oj1xvNvwuu4vELdO/2STPoSQo5s2u hfVELl8PRuxV31hSjXj8S1VPQMALYvIbjoWKEin34HE/Wuh9mhB6f7iW14YoEizz DFFFWvTsxoksSdNjb2xzWQNQtImbE/syFwggKLox065Bly7O6D1WewrpwTqDuKBG kQIDAQABo4ICbTCCAmkwDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQGCCsGAQUF BwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBQ/w/wv71fDjvM8 3cZs+Cx1ZoPZoTAfBgNVHSMEGDAWgBSoSmpjBH3duubRObemRWXv86jsoTBvBggr BgEFBQcBAQRjMGEwLgYIKwYBBQUHMAGGImh0dHA6Ly9vY3NwLmludC14My5sZXRz ZW5jcnlwdC5vcmcwLwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0LmludC14My5sZXRz ZW5jcnlwdC5vcmcvMCIGA1UdEQQbMBmCF3d3dy5ocGMuY2MudG9ob2t1LmFjLmpw MEwGA1UdIARFMEMwCAYGZ4EMAQIBMDcGCysGAQQBgt8TAQEBMCgwJgYIKwYBBQUH AgEWGmh0dHA6Ly9jcHMubGV0c2VuY3J5cHQub3JnMIIBBQYKKwYBBAHWeQIEAgSB 9gSB8wDxAHcAXqdz+d9WwOe1Nkh90EngMnqRmgyEoRIShBh1loFxRVgAAAFw7sZ7 eQAABAMASDBGAiEA6lDojrc8Q1aQPCJ1mi5ZVB7r1uuum6A40BBygI69tegCIQDF zKKHECX5Gvq24HOdMptW/rWUmoQqPA3Jpqg5w2eEIAB2AAe3XBvlfWj/8bDGHSMV x7rmV3xXlLdq7rxhOhpp06IcAAABcO7Ge5kAAAQDAEcwRQIgUPbPhLjFT43FR7Mx uMbs9oQ+OU0TeYRlnQ7dD4bQiagCIQCL4ikEzWvpzr1dvaLmPZz3UP2VqTe9p5cK dDIdPQm/rDANBgkqhkiG9w0BAQsFAAOCAQEAJ3bWS6XLCZ+39xW1sIsUWspBB//B Ahp6riwJWbedXEI4h7ygNS8kLh7zT925fvt605Fksjxdl7v6oK/hm9m3zuzrBOqt JCcfYy+UItFYaVbk9h99dRac8b4kUa29bkxxqUyFWAkYNuErzkp6P3fZ1cviD38Z w85WvfIySYL7QBe/5o5A23XMo4s2OGQkcym1wqMWofvOSGlCZBTGKiznPKgaSPDy KVwCV0jPr4dLamzRDZu0yGvsAGMBvjVK6GJ22EVEiCGOJbzI7tXLTUHblTKlDJYh d4I8XeuuS0LcNihtBAN92ooxaqFlO9UmQ7IN9/wGiYfBswevg6DQ6SAVuA== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAyhAQJRbRCZsJgFJPFjhr kk5yEozH/WVoFfhoFJfRWHh38w869EeqVuStokknafxzzBSmlj7PkZTlYVlT88N1 SNMy+6PsBhWdwRXUmAAZyRLsFq2Rhm4hoZk0jvfYR22n61saWGE0+5ewsVIYrX33 ywxhPe3qqnrSsje88Hu+0b/wi89AOqlHpw3oj1xvNvwuu4vELdO/2STPoSQo5s2u hfVELl8PRuxV31hSjXj8S1VPQMALYvIbjoWKEin34HE/Wuh9mhB6f7iW14YoEizz DFFFWvTsxoksSdNjb2xzWQNQtImbE/syFwggKLox065Bly7O6D1WewrpwTqDuKBG kQIDAQAB -----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 377497157110112168289963375109250700815364 . . . . . . . . [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 2020-03-18 16:52:29 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-06-16 16:52:29 +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.hpc.cc.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 25508058596175926171711542321312586520956577303187828585666914311020460770000845006784598377032226314458043515238572003308391247423094872883945999096199068108469672579755166009844935490451105948224944735016283009554070012433257426383212865616679277518647386794153985377754314135598380654713624551706059960180249778258557402163392421361419144820496495366010942195614534582633307679821572779877543558945319504552308848905763351807813402091357151753962480249003649739635876866176225411493339418596182192505466399393342404706172558655018180308326031878331009696721172348721691077581641696320906002100979178810515000411793 . . . . . . . . . . . . . . . . . . . . [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) 3fc3fc2fef57c38ef33cddc66cf82c756683d9a1 . . . . . . . . . . . . . . . . [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 (27 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.hpc.cc.tohoku.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 (246 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes) 00f10077005ea773f9df56c0e7b536487dd049e0327a919a0c84a11212841875968171455800000170eec67b790000040300483046022100ea50e88eb73c4356903c22759a2e59541eebd6ebae9ba038d01072808ebdb5e8022100c5cca2871025f91afab6e0739d329b56feb5949a842a3c0dc9a6a839c367842000760007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c00000170eec67b990000040300473045022050f6cf84b8c54f8dc547b331b8c6ecf6843e394d137984659d0edd0f86d089a80221008be22904cd6be9cebd5dbda2e63d9cf750fd95a937bda7970a74321d3d09bfac . . . . [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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