mountain.elcs.kyutech.ac.jp
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:23:55:41:f7:ae:60:25:9e:72:ca:a4:e7:63:e7:8d:f8:c3 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=mountain.elcs.kyutech.ac.jp
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:23:55:41:f7:ae:60:25:9e:72:ca:a4:e7:63:e7:8d:f8:c3Serial Number (int): 273360067540021737192976687342334807767235
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 19:20:46:5f:54:82:f8:70:32:34:42:53:f5:32:1d:6a:1d:66:89:af
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 20:5b:3c:a3:75:01:55:05:b9:42:95:b4:49:cb:ca:b6:12:96:2c:88
Fingerprint (sha256): 01:6b:9f:ab:47:b5:15:bc:5f:a4:01:82:64:2f:2b:6d:78:a1:69:ec:58:8e:d2:4d:76:11:19:80:f9:b3:d2:ee
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate mountain.elcs.kyutech.ac.jp
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for mountain.elcs.kyutech.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
mountain.elcs.kyutech.ac.jp
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Certificate
The complete raw certificate details for mountain.elcs.kyutech.ac.jp in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFcDCCBFigAwIBAgISAyNVQfeuYCWecsqk52PnjfjDMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0yMDAxMDQxMTQwNTZaFw0y MDA0MDMxMTQwNTZaMCYxJDAiBgNVBAMTG21vdW50YWluLmVsY3Mua3l1dGVjaC5h Yy5qcDCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBANa6zBoqSWObqu2B e+OGqCm6Csexg80HkNhTC8jsuJqrQLjb6vdBWlQzJ3CH4igrEUHegwRXDUv9UDzh PekI+uTcf+TiVrTulDbCwoCblcacG397neP/ZRWuGocVF2ULHrzxublbByMihqlx zz4tbkhK0Ye4HMGEueJkQCZIHxrEmZhgoX3gmQS6V+21Hoafp1k4BJskjDufZCAC 9cVaJjMQYD4EnTtc4JhtLXyhlMmu26K5fPSGePP/5wKV+PaOTGlnKArxVjsDkNK5 mhPnDnBZkLmPomSZjlV0sqkzf5e7GE+MjOloif/Gwy1JrQeZPWhGRaOR6/FylGBy DZtrtQcCAwEAAaOCAnIwggJuMA4GA1UdDwEB/wQEAwIFoDAdBgNVHSUEFjAUBggr BgEFBQcDAQYIKwYBBQUHAwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4EFgQUGSBGX1SC +HAyNEJT9TIdah1mia8wHwYDVR0jBBgwFoAUqEpqYwR93brm0Tm3pkVl7/Oo7KEw bwYIKwYBBQUHAQEEYzBhMC4GCCsGAQUFBzABhiJodHRwOi8vb2NzcC5pbnQteDMu bGV0c2VuY3J5cHQub3JnMC8GCCsGAQUFBzAChiNodHRwOi8vY2VydC5pbnQteDMu bGV0c2VuY3J5cHQub3JnLzAmBgNVHREEHzAdghttb3VudGFpbi5lbGNzLmt5dXRl Y2guYWMuanAwTAYDVR0gBEUwQzAIBgZngQwBAgEwNwYLKwYBBAGC3xMBAQEwKDAm BggrBgEFBQcCARYaaHR0cDovL2Nwcy5sZXRzZW5jcnlwdC5vcmcwggEGBgorBgEE AdZ5AgQCBIH3BIH0APIAdwDwlaRZ8gDRgkAQLS+TiI6tS/4dR+OZ4dA0prCoqo6y cwAAAW9wkqTBAAAEAwBIMEYCIQDomuqcfSr8mPVxC5alD2ImV2KUWMRyPUS7+igh 1TUeXQIhALjccbgrpmDTvQmXuCSupqWCiyhJyICudkgJprjY4l9FAHcAsh4FzIui zYogTodm+Su5iiUgZ2va+nDnsklTLe+LkF4AAAFvcJKksQAABAMASDBGAiEAsaIC HKAVzVmriHXPJVS94TSPbRWKqyTlULoq2SYi9DYCIQDbarUqs0Qh26Q3k7RiC9cQ HhfPPq9+JSmbIkon0XWlOzANBgkqhkiG9w0BAQsFAAOCAQEARZvQR241MqTUBFSm h7hwY0wQrNuREgB9T5S4qFO3ODKZ1wVeHt9T38hkrC/qokcFITRGRK8ByAgzmg/m NMtWfeq0prPTFmf8VWPNP/VtBZMuNXQQMB2ZB71wiF6ZTCyA4aiRNMn3gujR8MA3 EsPW2/n7IXFqLKSSO4NpQOq5s1PAd2zFMBamKL3UO2++gNrakYTlQs8pDBTTuEy7 yVKxV89GTc2QGpAx9lALLOGE5ocOQeULLTZjMxySPu2UkgTcBT6clZMGS3z3Z9UK BN8hbTiVYlFK0j3jxBoBL7c4n9b9AwRhJp+khFs+ADSto2IttWVDjlUFcGCMJvX9 6sG/dw== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA1rrMGipJY5uq7YF744ao KboKx7GDzQeQ2FMLyOy4mqtAuNvq90FaVDMncIfiKCsRQd6DBFcNS/1QPOE96Qj6 5Nx/5OJWtO6UNsLCgJuVxpwbf3ud4/9lFa4ahxUXZQsevPG5uVsHIyKGqXHPPi1u SErRh7gcwYS54mRAJkgfGsSZmGChfeCZBLpX7bUehp+nWTgEmySMO59kIAL1xVom MxBgPgSdO1zgmG0tfKGUya7borl89IZ48//nApX49o5MaWcoCvFWOwOQ0rmaE+cO cFmQuY+iZJmOVXSyqTN/l7sYT4yM6WiJ/8bDLUmtB5k9aEZFo5Hr8XKUYHINm2u1 BwIDAQAB -----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 273360067540021737192976687342334807767235 . . . . . . . . [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 2020-01-04 11:40:56 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-04-03 11:40:56 +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 'mountain.elcs.kyutech.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 27107110431773550987669893448001130275555546729012526500240120151557330370374638907774774444266393289186836790699469566562898891017597337628931591170496749495115659506692961584857537857099401956491957936165631367323224980112014852084142383490890184334711798598963999810170930601126491171356595881561750354740054236656896029798086913293526260434023663278176225832096419438212267539729246165059010385602555304712049974822495815762844412444725929708242637277641915119042475780295340504788088390727773606863123993874561009256830638085138500945320791501580464900982695037524406258309332450093795127244712107831129436566791 . . . . . . . . . . . . . . . . . . . . [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) 1920465f5482f87032344253f5321d6a1d6689af . . . . . . . . . . . . . . . . [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 (31 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mountain.elcs.kyutech.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 (247 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (244 bytes) 00f2007700f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb2730000016f7092a4c10000040300483046022100e89aea9c7d2afc98f5710b96a50f622657629458c4723d44bbfa2821d5351e5d022100b8dc71b82ba660d3bd0997b824aea6a5828b2849c880ae764809a6b8d8e25f45007700b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016f7092a4b10000040300483046022100b1a2021ca015cd59ab8875cf2554bde1348f6d158aab24e550ba2ad92622f436022100db6ab52ab34421dba43793b4620bd7101e17cf3eaf7e25299b224a27d175a53b . . . . [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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