helpdesk.it.hkct.edu.hk
Issued by R3
About this certificate
This digital certificate with serial number 04:2e:46:20:6b:76:2d:6a:25:2d:42:67:9b:c5:91:e9:b8:45 was issued on by Let's Encrypt.
This certificate is currently not expired, we haven't checked the revocation status of this certificate but you can do this simply on revocationcheck.com. 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:
- DV certificate contains a subject common name, this is not recommended. If certificate policy 2.23.140.1.2.1 (CA/B BR domain validated) is included, only country and/or common name is allowed in SubjectDN. (BRs: 7.1.2.7.2)
- Subscriber certificates use of Subject Key Identifier is NOT RECOMMENDED (BRs v2: 7.1.2.7.6)
- Subscriber Certificate: commonName is NOT RECOMMENDED. (BRs: 7.1.2.7.1)
Certificate Subject
CN=helpdesk.it.hkct.edu.hk
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate will expire on
Certificate Details
Serial Number (hex): 04:2e:46:20:6b:76:2d:6a:25:2d:42:67:9b:c5:91:e9:b8:45Serial Number (int): 364195346898189379045951424613169119213637
Serial Number lenght: 139 bits, 18 octets
SubjectKeyId: 99:a9:7e:81:82:de:6f:2d:38:96:00:75:ad:0d:ed:42:55:8b:d0:86
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6
Fingerprint (sha1): 5c:06:71:1f:33:af:63:c2:ab:88:9b:c9:54:d0:8a:ba:4a:c5:a6:a1
Fingerprint (sha256): 23:cb:70:47:ad:23:91:ca:9b:f8:17:52:f7:89:fb:5d:98:8d:e9:71:88:2a:04:32:a6:d9:93:62:a5:5a:61:75
Issuing Certificate URL: http://r3.i.lencr.org/
Revocation information
OCSP Server: http://r3.o.lencr.orgCheck the revocation status for certificate helpdesk.it.hkct.edu.hk
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for helpdesk.it.hkct.edu.hk
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
helpdesk.it.hkct.edu.hk
Other certificates including the domain name hkct.edu.hk
(limited to 100 certificates)
svt.hkct.edu.hk
helpdesk.it.hkct.edu.hk
svt.hkct.edu.hk
enrol.hkct.edu.hk
helpdesk.it.hkct.edu.hk
helpdesk.it.hkct.edu.hk
orsapps.hkct.edu.hk
enrol.hkct.edu.hk
www.hkct.edu.hk
helpdesk.it.hkct.edu.hk
enrol.hkct.edu.hk
www.hkct.edu.hk
elearn.hkct.edu.hk
ctpower.hkct.edu.hk
svt.hkct.edu.hk
hkcc.hkct.edu.hk
exmail.hkct.edu.hk
enrol.hkct.edu.hk
elearn.hkct.edu.hk
orsapps.hkct.edu.hk
ctpower.hkct.edu.hk
orsapps.hkct.edu.hk
*.hkct.edu.hk
*.hkct.edu.hk
exmail.hkct.edu.hk
elearn.hkct.edu.hk
elearn.hkct.edu.hk
*.hkct.edu.hk
sso.hkct.edu.hk
orsapps.hkct.edu.hk
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www.hkct.edu.hk
enrol.hkct.edu.hk
helpdesk.it.hkct.edu.hk
apply.hkct.edu.hk
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www.hkct.edu.hk
www.hkct.edu.hk
hkct.edu.hk
*.hkct.edu.hk
enrol.hkct.edu.hk
helpdesk.it.hkct.edu.hk
sso.hkct.edu.hk
helpdesk.it.hkct.edu.hk
helpdesk.it.hkct.edu.hk
exmail.hkct.edu.hk
sso.hkct.edu.hk
hkct.edu.hk
ctpower.hkct.edu.hk
exmail.hkct.edu.hk
elearn.hkct.edu.hk
www.hkct.edu.hk
hkct.edu.hk
ctpower.hkct.edu.hk
enrol.hkct.edu.hk
hkct.edu.hk
ctpower.hkct.edu.hk
sso.hkct.edu.hk
exmail.hkct.edu.hk
elearn.hkct.edu.hk
*.ezproxy.hkct.edu.hk
ctpower.hkct.edu.hk
elearn.hkct.edu.hk
*.hkct.edu.hk
mediastore.hkct.edu.hk
helpdesk.it.hkct.edu.hk
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elearn.hkct.edu.hk
helpdesk.it.hkct.edu.hk
ctpower.hkct.edu.hk
helpdesk.it.hkct.edu.hk
sso.hkct.edu.hk
helpdesk.it.hkct.edu.hk
www.hkct.edu.hk
enrol.hkct.edu.hk
enrol.hkct.edu.hk
exmail.hkct.edu.hk
*.hkct.edu.hk
hkct.edu.hk
exmail.hkct.edu.hk
exmail.hkct.edu.hk
helpdesk.it.hkct.edu.hk
www.hkct.edu.hk
helpdesk.it.hkct.edu.hk
svt.hkct.edu.hk
enrol.hkct.edu.hk
helpdesk.it.hkct.edu.hk
helpdesk.it.hkct.edu.hk
orsapps.hkct.edu.hk
enrol.hkct.edu.hk
www.hkct.edu.hk
helpdesk.it.hkct.edu.hk
enrol.hkct.edu.hk
www.hkct.edu.hk
elearn.hkct.edu.hk
ctpower.hkct.edu.hk
svt.hkct.edu.hk
hkcc.hkct.edu.hk
exmail.hkct.edu.hk
enrol.hkct.edu.hk
elearn.hkct.edu.hk
orsapps.hkct.edu.hk
ctpower.hkct.edu.hk
orsapps.hkct.edu.hk
*.hkct.edu.hk
*.hkct.edu.hk
exmail.hkct.edu.hk
elearn.hkct.edu.hk
elearn.hkct.edu.hk
*.hkct.edu.hk
sso.hkct.edu.hk
orsapps.hkct.edu.hk
hkct.edu.hk
www.hkct.edu.hk
enrol.hkct.edu.hk
helpdesk.it.hkct.edu.hk
apply.hkct.edu.hk
helpdesk.it.hkct.edu.hk
www.hkct.edu.hk
www.hkct.edu.hk
hkct.edu.hk
*.hkct.edu.hk
enrol.hkct.edu.hk
helpdesk.it.hkct.edu.hk
sso.hkct.edu.hk
helpdesk.it.hkct.edu.hk
helpdesk.it.hkct.edu.hk
exmail.hkct.edu.hk
sso.hkct.edu.hk
hkct.edu.hk
ctpower.hkct.edu.hk
exmail.hkct.edu.hk
elearn.hkct.edu.hk
www.hkct.edu.hk
hkct.edu.hk
ctpower.hkct.edu.hk
enrol.hkct.edu.hk
hkct.edu.hk
ctpower.hkct.edu.hk
sso.hkct.edu.hk
exmail.hkct.edu.hk
elearn.hkct.edu.hk
*.ezproxy.hkct.edu.hk
ctpower.hkct.edu.hk
elearn.hkct.edu.hk
*.hkct.edu.hk
mediastore.hkct.edu.hk
helpdesk.it.hkct.edu.hk
*.hkct.edu.hk
elearn.hkct.edu.hk
helpdesk.it.hkct.edu.hk
ctpower.hkct.edu.hk
helpdesk.it.hkct.edu.hk
sso.hkct.edu.hk
helpdesk.it.hkct.edu.hk
www.hkct.edu.hk
enrol.hkct.edu.hk
enrol.hkct.edu.hk
exmail.hkct.edu.hk
*.hkct.edu.hk
hkct.edu.hk
exmail.hkct.edu.hk
exmail.hkct.edu.hk
helpdesk.it.hkct.edu.hk
www.hkct.edu.hk
Certificate
The complete raw certificate details for helpdesk.it.hkct.edu.hk in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIF+zCCBOOgAwIBAgISBC5GIGt2LWolLUJnm8WR6bhFMA0GCSqGSIb3DQEBCwUA MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD EwJSMzAeFw0yNDAyMjcyMzM4MjVaFw0yNDA1MjcyMzM4MjRaMCIxIDAeBgNVBAMT F2hlbHBkZXNrLml0LmhrY3QuZWR1LmhrMIICIjANBgkqhkiG9w0BAQEFAAOCAg8A MIICCgKCAgEAu2oKt7X1SBpoq3EsurMqdft+dQfGCB/PdGyyXlvEjNOHJZekjv68 WqBb2FnC7wZ4EX+nBlCnSnLjEESIV8R4J6ihVmfjqvga+G2fIeO7VFbvmlskfz/K mpd/p6isbqvj04kgYMmQk4ZiID86fJbaxfZ1TRs6uwEFPQt9wxroU+CYtl/OAYL6 PKQTNzJQ0zOT7Ir/iaLliv7GVUKDuU6umASS2DcQ0zWtO07hmefcfhDBAoW/mYwF oXdxm1t4rBUy+FTVHVf2iaXavlxSj1h5fLKTD4RAOLFySV/KRGnLB1Is15bz46kX FCJI8ExnSEjIadCei76ixROVIcxhGuNzml70i/gGql6NHSw9rKJnCKIqLAOjOyfI TkpGcE3kBrLQuX1W8zj8MmHaQM5ZsiYQyxyD7/mZyJf0o8yPZ+eOuf3CBZtAVTSI aHv433G9El5gJ72h/pa4ms8cgmEs/3oInlXABEGrezMZHxg+/MWRF3LjsdOfC0hR IR/KMOG/xXbBJXFigtZi0YpoJnH9fwjnG508N8e1Hpe737RhAAKE6LPD6QvG9NYg 76QDkmrGSd8EXLe8FWh8hEKGmvURJ98ltcZ9awzp2lmtb/rvJGBNZJRYt6HrLUDk V9oEvqitWhtS4jHlRq1r58N3zmztB5AJqImQI1x20xU+i8hoWVit01ECAwEAAaOC AhkwggIVMA4GA1UdDwEB/wQEAwIFoDAdBgNVHSUEFjAUBggrBgEFBQcDAQYIKwYB BQUHAwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4EFgQUmal+gYLeby04lgB1rQ3tQlWL 0IYwHwYDVR0jBBgwFoAUFC6zF7dYVsuuUAlA5h+vnYsUwsYwVQYIKwYBBQUHAQEE STBHMCEGCCsGAQUFBzABhhVodHRwOi8vcjMuby5sZW5jci5vcmcwIgYIKwYBBQUH MAKGFmh0dHA6Ly9yMy5pLmxlbmNyLm9yZy8wIgYDVR0RBBswGYIXaGVscGRlc2su aXQuaGtjdC5lZHUuaGswEwYDVR0gBAwwCjAIBgZngQwBAgEwggEEBgorBgEEAdZ5 AgQCBIH1BIHyAPAAdwBIsONr2qZHNA/lagL6nTDrHFIBy1bdLIHZu7+rOdiEcwAA AY3tJfnwAAAEAwBIMEYCIQDnj2jwAaNuDV7/hXQOeWcB7mg3lGeEB3k88wzzps41 fwIhALjnLUXZWmuWWfD8l2dFCOaBvIbNaF/VmFB+OfJ8Wa8YAHUA7s3QZNXbGs7F XLedtM0TojKHRny87N7DUUhZRnEftZsAAAGN7SX6QQAABAMARjBEAiB1zJhNncY/ 1hbvy3MqH+usGkkhVFJbA+RO1ROGjzPH1wIgNtMgKGLFnWkiM4iDaMDT/kzxf4sm dDGoSk8uEFFP610wDQYJKoZIhvcNAQELBQADggEBAGhM1FJXG3wUmiGhYBbX8PgF Ev/fUsR449QtIjKMlJEApvw9/aaX0hlCNsfQkVsbYPZ9+O3rra/W6EH9LlL6JfK8 5ttBZJjtjlE+82beowftG057bw4eB8qym0VYotLQHn84gkA+cMOyYkEEl/jLUW5T HIoHobJS0zi2Z9IYbVyD3aJADqrZ8Fm1CK7o+zDtp2M3svw/UvZ29ihQM97MEq5n /DbWCFVxTM5qxIYvLQhMrHC9yFDFZoCJ9ppkD9T5+w82/Dh7IbBWLryRuET+yYAT xyCwPCPiunN0sBP6PCs21ucvvIoHA5jpTRXQTDZP805BdeKPKl23fc9aistkUYU= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAu2oKt7X1SBpoq3EsurMq dft+dQfGCB/PdGyyXlvEjNOHJZekjv68WqBb2FnC7wZ4EX+nBlCnSnLjEESIV8R4 J6ihVmfjqvga+G2fIeO7VFbvmlskfz/Kmpd/p6isbqvj04kgYMmQk4ZiID86fJba xfZ1TRs6uwEFPQt9wxroU+CYtl/OAYL6PKQTNzJQ0zOT7Ir/iaLliv7GVUKDuU6u mASS2DcQ0zWtO07hmefcfhDBAoW/mYwFoXdxm1t4rBUy+FTVHVf2iaXavlxSj1h5 fLKTD4RAOLFySV/KRGnLB1Is15bz46kXFCJI8ExnSEjIadCei76ixROVIcxhGuNz ml70i/gGql6NHSw9rKJnCKIqLAOjOyfITkpGcE3kBrLQuX1W8zj8MmHaQM5ZsiYQ yxyD7/mZyJf0o8yPZ+eOuf3CBZtAVTSIaHv433G9El5gJ72h/pa4ms8cgmEs/3oI nlXABEGrezMZHxg+/MWRF3LjsdOfC0hRIR/KMOG/xXbBJXFigtZi0YpoJnH9fwjn G508N8e1Hpe737RhAAKE6LPD6QvG9NYg76QDkmrGSd8EXLe8FWh8hEKGmvURJ98l tcZ9awzp2lmtb/rvJGBNZJRYt6HrLUDkV9oEvqitWhtS4jHlRq1r58N3zmztB5AJ qImQI1x20xU+i8hoWVit01ECAwEAAQ== -----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 364195346898189379045951424613169119213637 . . . . . . . . [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 2024-02-27 23:38:25 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-05-27 23:38:24 +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 'helpdesk.it.hkct.edu.hk' . . . . . . . . [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 764583335518126633133509837392133704090360423991898182146230781401387880905711915900505009632810457056875090763566402468429632184325363014305526762078798161015199976575659162954640175454828502970644423568165212249008587563851653155193529120854446920000741292760363920891813282291727122409807236380722392977659705502555805982652837960044197541342439603120681546280108071399760527784286537120348666696450060255978056433884393859412294576079806905415963254191035635218900750429139947288737787495784879946443086797476393095707282630525560033835246559288813154115286144579830048834121103799298922567790625805595157795381711801882127836243044916336013380140501730963671080558180320139546927793257255733146061708730254587059971604846469244564823894706758007723019457749309678820606685366986839253262044430709241412212881971841148554346790488918075452594292681916126765541080161708870653193642768528531790010504290142014622971043511882558288878861648568408905155622272508722363001543879575939070830547205322169236594452752740580265425435838113718136017633011282647672634532582190883040501556432623521275946908654781201060409899488506139821884636950116877289758606132150805031214396203103625224497350085067879759849688742715734299948830544721 . . . . . . . . . . . . . . . . . . . . [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) 99a97e8182de6f2d38960075ad0ded42558bd086 . . . . . . . . . . . . . . . . [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 (27 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'helpdesk.it.hkct.edu.hk' . . . . . . . . . . . . . . . . [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 (12 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 1.3.6.1.4.1.11129.2.4.2 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (245 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes) 00f000770048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018ded25f9f00000040300483046022100e78f68f001a36e0d5eff85740e796701ee683794678407793cf30cf3a6ce357f022100b8e72d45d95a6b9659f0fc97674508e681bc86cd685fd598507e39f27c59af18007500eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018ded25fa410000040300463044022075cc984d9dc63fd616efcb732a1febac1a492154525b03e44ed513868f33c7d7022036d3202862c59d692233888368c0d3fe4cf17f8b267431a84a4f2e10514feb5d . . . . [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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