*.ipl-e.ai.kyutech.ac.jp
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:82:e0:c5:2f:c4:16:6e:e0:a1:00:14:46:40:37:f5:52:1c was issued on by Let's Encrypt.
With 2 subject alternative names this certificate can be used to secure multiple fqdn's. 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=*.ipl-e.ai.kyutech.ac.jp
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:82:e0:c5:2f:c4:16:6e:e0:a1:00:14:46:40:37:f5:52:1cSerial Number (int): 305872336417348606643944241722993025569308
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 1a:76:e7:71:c5:a9:04:36:8f:0a:e4:4d:43:e7:b7:6d:92:31:32:d3
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 08:ff:35:c5:96:d7:6f:7c:3c:b1:d0:41:1c:20:55:91:07:3b:8e:cc
Fingerprint (sha256): 0e:31:a5:39:82:ea:16:88:3f:13:bb:38:ac:0c:87:f5:46:75:bd:16:e7:ed:e1:be:36:af:da:86:81:40:4d:8f
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate *.ipl-e.ai.kyutech.ac.jp
2
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for *.ipl-e.ai.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
*.ipl-e.ai.kyutech.ac.jp
*.pl.ai.kyutech.ac.jp
*.pl.ai.kyutech.ac.jp
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Certificate
The complete raw certificate details for *.ipl-e.ai.kyutech.ac.jp in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFfTCCBGWgAwIBAgISA4LgxS/EFm7goQAURkA39VIcMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTA4MjcwNzIzNThaFw0x OTExMjUwNzIzNThaMCMxITAfBgNVBAMMGCouaXBsLWUuYWkua3l1dGVjaC5hYy5q cDCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAK44nKfiUih61uExxaSL a9N7OOQRf5mOniCFlBeYn0Bma5xZgyIbSL+USpoO1LF0Z17aROYMIWCmQwQhiIlX byWW36kbt7A5x6pBrROii+8fAYM829Zlb/vG6HUcZgggfPmzR7eroYVUAtfzKyC1 Mqml3XOzKO4gg9rbLQcnXHsaUgOvT3+nSOglrW/PJQHpoJi1P2ldxt3X9AnApo1+ VhWIXe/LIJE5+jjQk+AxAUk+NV89FUPeqGiHd4z5Z2aLsIRHFlrAceqjbPFVTyg6 W5GtZMcQZdefFslvkT/uEvxzDyyIhqI+aNwArVkDKrIWU1E8cqdVEfk4Fe3nJRCR /ysCAwEAAaOCAoIwggJ+MA4GA1UdDwEB/wQEAwIFoDAdBgNVHSUEFjAUBggrBgEF BQcDAQYIKwYBBQUHAwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4EFgQUGnbnccWpBDaP CuRNQ+e3bZIxMtMwHwYDVR0jBBgwFoAUqEpqYwR93brm0Tm3pkVl7/Oo7KEwbwYI KwYBBQUHAQEEYzBhMC4GCCsGAQUFBzABhiJodHRwOi8vb2NzcC5pbnQteDMubGV0 c2VuY3J5cHQub3JnMC8GCCsGAQUFBzAChiNodHRwOi8vY2VydC5pbnQteDMubGV0 c2VuY3J5cHQub3JnLzA6BgNVHREEMzAxghgqLmlwbC1lLmFpLmt5dXRlY2guYWMu anCCFSoucGwuYWkua3l1dGVjaC5hYy5qcDBMBgNVHSAERTBDMAgGBmeBDAECATA3 BgsrBgEEAYLfEwEBATAoMCYGCCsGAQUFBwIBFhpodHRwOi8vY3BzLmxldHNlbmNy eXB0Lm9yZzCCAQIGCisGAQQB1nkCBAIEgfMEgfAA7gB1AG9Tdqwx8DEZ2JkApFEV /3cVHBHZAsEAKQaNsgiaN9kTAAABbNIsqn8AAAQDAEYwRAIgPrTRRT653ZlW8vhZ W0mdZWC8daZawgW7cEFwWPardBMCIFbwf/pTUN+aYKYUoLolDnAsNSRkMGY+Out0 1LTXuMgjAHUAKTxRllTIOWW6qlD8WAfUt2+/WHopctykwwz05UVH9HgAAAFs0iyq TAAABAMARjBEAiANjmdE/ADk6ggDVdr9RR6idYJIkuTzN3qQ7BXKawt3twIgQx9p maPCC4f2dyZYdCZlaH8BkS5MZGQgK4CNWhJ5BXowDQYJKoZIhvcNAQELBQADggEB AEfSD9+kpUvu0ai+mBGB42DhAS4sSqwjGAvN2M+cw1B19kpGnVeviftPJHZ+AxgS vOQ/Z2XTN5O1S3vMF6Nls0eFiHsVLTzfzfcPLXTllHS/otOjUNYuVDIZE106FzcO 5aoREULnsfAEWl655hpkkSpUk6WtIXwfxMwugszGUkBFCdxvDCKj89qERRh5npIT YjSWbVRtKi7hQnVclrBM4/fvIMCZ/sHyY7N+ICkMdVekWZ7S+X3BTTP93HF5Sozt jAJtuq6wrNLSXh+GPzj9C1nr3WFdYZpZ7r6JV4/GauOVvr/IRmeyzfPAcb4wqZ/L LxgxTlP/0HXwg4Cw196RXXE= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEArjicp+JSKHrW4THFpItr 03s45BF/mY6eIIWUF5ifQGZrnFmDIhtIv5RKmg7UsXRnXtpE5gwhYKZDBCGIiVdv JZbfqRu3sDnHqkGtE6KL7x8Bgzzb1mVv+8bodRxmCCB8+bNHt6uhhVQC1/MrILUy qaXdc7Mo7iCD2tstBydcexpSA69Pf6dI6CWtb88lAemgmLU/aV3G3df0CcCmjX5W FYhd78sgkTn6ONCT4DEBST41Xz0VQ96oaId3jPlnZouwhEcWWsBx6qNs8VVPKDpb ka1kxxBl158WyW+RP+4S/HMPLIiGoj5o3ACtWQMqshZTUTxyp1UR+TgV7eclEJH/ KwIDAQAB -----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 305872336417348606643944241722993025569308 . . . . . . . . [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 2019-08-27 07:23:58 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-11-25 07:23:58 +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:12|false] UTF8String '*.ipl-e.ai.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 21993381450542665778112789237561276277009647531986679385036238005751981207734372141443080530503016937133005080097374745648988875193791015471503165161952276234601003094433840256594969001219223950901527863154664927521330251285016501768918290906011903568515118550071894280637843683746295332867583973203468666785277882697224693773181490046548052246453402662900048429345050232943198932097758686733454943045127763741818153425972607613167002151957959848986951387524981190530126587701659714843513529189450007996354072836591990423633165750750896078095696671482900517650797984408405137017786800964329242267497608207074149400363 . . . . . . . . . . . . . . . . . . . . [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) 1a76e771c5a904368f0ae44d43e7b76d923132d3 . . . . . . . . . . . . . . . . [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 (51 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.ipl-e.ai.kyutech.ac.jp' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.pl.ai.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 (243 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (240 bytes) 00ee0075006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d9130000016cd22caa7f000004030046304402203eb4d1453eb9dd9956f2f8595b499d6560bc75a65ac205bb70417058f6ab7413022056f07ffa5350df9a60a614a0ba250e702c35246430663e3aeb74d4b4d7b8c823007500293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016cd22caa4c000004030046304402200d8e6744fc00e4ea080355dafd451ea275824892e4f3377a90ec15ca6b0b77b70220431f6999a3c20b87f6772658742665687f01912e4c6464202b808d5a1279057a . . . . [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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