studyroom-api.clib.psu.ac.th
Issued by R3
About this certificate
This digital certificate with serial number 03:9d:4b:39:b6:e3:e8:68:aa:7c:b3:fc:b0:a5:ec:b8:d2:6e was issued on by Let's Encrypt.
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- Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)
Certificate Subject
CN=studyroom-api.clib.psu.ac.th
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:9d:4b:39:b6:e3:e8:68:aa:7c:b3:fc:b0:a5:ec:b8:d2:6eSerial Number (int): 314861181171928151690272605199943194956398
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 83:12:3d:7c:53:07:11:90:8f:e0:f6:61:a0:73:d9:49:2e:d1:ea:10
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6
Fingerprint (sha1): d1:9a:95:e8:b3:6b:5b:54:33:85:c1:64:c1:e9:ed:2d:b1:8e:a8:0c
Fingerprint (sha256): 0e:71:94:e1:c4:fd:52:aa:82:06:f5:3b:49:c3:d4:8e:5d:a2:0c:92:74:a8:e9:f9:c2:97:50:91:6d:c1:af:67
Issuing Certificate URL: http://r3.i.lencr.org/
Revocation information
OCSP Server: http://r3.o.lencr.orgCheck the revocation status for certificate studyroom-api.clib.psu.ac.th
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for studyroom-api.clib.psu.ac.th
Public Key Algorithm
RSA
Key Size
4096
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
studyroom-api.clib.psu.ac.th
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Certificate
The complete raw certificate details for studyroom-api.clib.psu.ac.th in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGPjCCBSagAwIBAgISA51LObbj6GiqfLP8sKXsuNJuMA0GCSqGSIb3DQEBCwUA MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD EwJSMzAeFw0yMzAzMDkyMDQ0MDRaFw0yMzA2MDcyMDQ0MDNaMCcxJTAjBgNVBAMT HHN0dWR5cm9vbS1hcGkuY2xpYi5wc3UuYWMudGgwggIiMA0GCSqGSIb3DQEBAQUA A4ICDwAwggIKAoICAQDXEUJ1T00A4ICR8cKXSJhA79DWwhwC6QWfkjI0vt1pFBuu jTPvlnExynXTps6VttPiGwWdcOzMeH8oWJWpaET+5YTNe76CTAqD1WqJJ0Ha+6M+ QsOHYahfRydrHsbUpa+yteZMZRJZlFiVGIM6ot0rPWBnsTToc7O1xWcl5ueaubIP 1Bm5wuGo6pTYIc7aA5qkbfqCwW3d9/HO/HZJx5qWu1FbEs1LVGqF/mGK41cAtubC 5fRAPG85F+ch0OFq9HcMeXzdd2Y3bJtpP29MaTWOeNnLe/jMXiT0iZpCAs72ApTz Yz/uZjl7unalllRNVstmEO4BQ3iW9bje7bRHsuOntDNb4zkdOZlB49Ys6wpmijwa eznP5RT1EpGOorDN6C2CmJF7xiitxdnEjaLv27R0v802F07sf8EA81p4+ZfB8qzD i1OWjRZDoV11IoekQg3NnjWYIUVLMF2oMCHLKzmOSbWT0zFrZkdI8WErJxuoD5CS 4qbVGCFUid78g24hf2pNq4x/Y9YrvXJYLJxc3uYzBiSBeAu5gPWiboJCfFvyTun6 OoSZ/sX0WKNy56JAZsrmdv4ii9e78rqYq9urrUsD7bf470AsiNLJqYP+8vfdboFe a0Udj7clc2dTmjY0+Sx5vFkKNltx/MJMx29LWH/TUGOluMDfDB9zLKzP7H1hdQID AQABo4ICVzCCAlMwDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQGCCsGAQUFBwMB BggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBSDEj18UwcRkI/g9mGg c9lJLtHqEDAfBgNVHSMEGDAWgBQULrMXt1hWy65QCUDmH6+dixTCxjBVBggrBgEF BQcBAQRJMEcwIQYIKwYBBQUHMAGGFWh0dHA6Ly9yMy5vLmxlbmNyLm9yZzAiBggr BgEFBQcwAoYWaHR0cDovL3IzLmkubGVuY3Iub3JnLzAnBgNVHREEIDAeghxzdHVk eXJvb20tYXBpLmNsaWIucHN1LmFjLnRoMEwGA1UdIARFMEMwCAYGZ4EMAQIBMDcG CysGAQQBgt8TAQEBMCgwJgYIKwYBBQUHAgEWGmh0dHA6Ly9jcHMubGV0c2VuY3J5 cHQub3JnMIIBBAYKKwYBBAHWeQIEAgSB9QSB8gDwAHYAtz77JN+cTbp18jnFulj0 bF38Qs96nzXEnh0JgSXttJkAAAGGyFTFswAABAMARzBFAiEA/YvapZj5TDw51iSL h0UA7S54rHUjEKFdoYS0zeFj2b4CIGCsQQT8t4veLtqdN6Jm6pChPgDQQy75oOnk /Vn28vGVAHYArfe++nz/EMiLnT2cHj4YarRnKV3PsQwkyoWGNOvcgooAAAGGyFTF xwAABAMARzBFAiEAup0kvrJWpd5GcJf06HVqaM+yIDIXhkEg1WmuMsXtMiYCIEyq J7Xg6fnqDzB03yoEIKjNuNwiohbB3IQMmwisALr3MA0GCSqGSIb3DQEBCwUAA4IB AQBwlb3MIFQilEVqFCaltUWNCDVqhZosBl6XZweDfXYnXFhwSr8o1wG1ppSMUm6q AWvwo/tnRD8uyo/6hmdr7DkT9HEhrN6MEfPE0RYjAItxe9hrAVgvm6Qiy0Y91HsO hujvWNMXHGSzftrfcwWLQAgcYzhOrWMkbbT+JV+llaHzYJZDh1YIQTr5+ptH080a CmN+JT/C9Hh2XaehtkXOpCv5mz7uFK0bAhRn/vC/zmMEacthQ9dhf00J2hhbyZvv jffVoCtQY+1MP+KidhKNpxIT3b8yaYQIoH2fGLoP3Bxty/7cPSYolEFiWhxq0+lN nAVek1uPgS3auS5JXAu4Jn20 -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEA1xFCdU9NAOCAkfHCl0iY QO/Q1sIcAukFn5IyNL7daRQbro0z75ZxMcp106bOlbbT4hsFnXDszHh/KFiVqWhE /uWEzXu+gkwKg9VqiSdB2vujPkLDh2GoX0cnax7G1KWvsrXmTGUSWZRYlRiDOqLd Kz1gZ7E06HOztcVnJebnmrmyD9QZucLhqOqU2CHO2gOapG36gsFt3ffxzvx2Scea lrtRWxLNS1Rqhf5hiuNXALbmwuX0QDxvORfnIdDhavR3DHl83XdmN2ybaT9vTGk1 jnjZy3v4zF4k9ImaQgLO9gKU82M/7mY5e7p2pZZUTVbLZhDuAUN4lvW43u20R7Lj p7QzW+M5HTmZQePWLOsKZoo8Gns5z+UU9RKRjqKwzegtgpiRe8YorcXZxI2i79u0 dL/NNhdO7H/BAPNaePmXwfKsw4tTlo0WQ6FddSKHpEINzZ41mCFFSzBdqDAhyys5 jkm1k9Mxa2ZHSPFhKycbqA+QkuKm1RghVIne/INuIX9qTauMf2PWK71yWCycXN7m MwYkgXgLuYD1om6CQnxb8k7p+jqEmf7F9FijcueiQGbK5nb+IovXu/K6mKvbq61L A+23+O9ALIjSyamD/vL33W6BXmtFHY+3JXNnU5o2NPksebxZCjZbcfzCTMdvS1h/ 01BjpbjA3wwfcyysz+x9YXUCAwEAAQ== -----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 314861181171928151690272605199943194956398 . . . . . . . . [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 'R3' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-03-09 20:44:04 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-06-07 20:44:03 +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 'studyroom-api.clib.psu.ac.th' . . . . . . . . [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 (4208 bits) . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 877398525542202198496958214861003699103695797447961448665790044083626857369235329032674822305345480060385996765271106805967936331685784697096664366350634503962551670991584377972680894074630862779364675555052477580084882542407167271163692261513200615429878060960534579842130972960085142327939530077402834924298227391633147803062799781513019751660415389668487983190945585904440419860214447956408497502233304015150654814956822918379291076100809051153208467929430285038174429235878350543091713585993658726198034594965894890516755659167702466456638953502539978996635100585424365252987638647642594592346973044092955021091272349239511922721981608735232651168350068161980265629771095766057026798768632622278065751784332988549955709824301647948166265070134236611408436513295855280597432420761155205693125216651437783233564540952185563640701977621732592168027313745471390006196688283704286755865036542202144152386425506603073955720828288658789848898830407091702904080253284063935225827578974445072015638291625096171590755371229136767156951632056473630426987700726653539330430258973185841893062826997952416468580341941378952891142803701587358739862080060181503585719611225858212527511404345749884138075999752561985390367773045244302227094200693 . . . . . . . . . . . . . . . . . . . . [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) . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:3|false] ORAddress . . . . . . . . . . . . . . . . [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 142eb317b75856cbae500940e61faf9d8b14c2c6 . . . . . . . . . . . . . . . . [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 (73 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://r3.o.lencr.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://r3.i.lencr.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 (32 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'studyroom-api.clib.psu.ac.th' . . . . . . . . . . . . . . . . [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) 00f0007600b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb49900000186c854c5b30000040300473045022100fd8bdaa598f94c3c39d6248b874500ed2e78ac752310a15da184b4cde163d9be022060ac4104fcb78bde2eda9d37a266ea90a13e00d0432ef9a0e9e4fd59f6f2f195007600adf7befa7cff10c88b9d3d9c1e3e186ab467295dcfb10c24ca858634ebdc828a00000186c854c5c70000040300473045022100ba9d24beb256a5de467097f4e8756a68cfb2203217864120d569ae32c5ed322602204caa27b5e0e9f9ea0f3074df2a0420a8cdb8dc22a216c1dc840c9b08ac00baf7 . . . . [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) 007095bdcc20542294456a1426a5b5458d08356a859a2c065e976707837d76275c58704abf28d701b5a6948c526eaa016bf0a3fb67443f2eca8ffa86676bec3913f47121acde8c11f3c4d11623008b717bd86b01582f9ba422cb463dd47b0e86e8ef58d3171c64b37edadf73058b40081c63384ead63246db4fe255fa595a1f3609643875608413af9fa9b47d3cd1a0a637e253fc2f478765da7a1b645cea42bf99b3eee14ad1b021467fef0bfce630469cb6143d7617f4d09da185bc99bef8df7d5a02b5063ed4c3fe2a276128da71213ddbf32698408a07d9f18ba0fdc1c6dcbfedc3d26289441625a1c6ad3e94d9c055e935b8f812ddab92e495c0bb8267db4