helpdesk.it.hkct.edu.hk
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:97:c7:bb:5b:4c:89:91:a5:d9:23:20:d7:b7:70:81:fc:93 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=helpdesk.it.hkct.edu.hk
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:97:c7:bb:5b:4c:89:91:a5:d9:23:20:d7:b7:70:81:fc:93Serial Number (int): 312984984382779382001487068067219055443091
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 06:0b:0c:b7:96:6e:32:5c:5f:16:0f:0a:63:fd:46:c5:e7:2a:48:1c
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 67:4c:53:8d:2d:be:56:ec:17:5d:71:10:fc:cf:b6:f0:75:8e:55:1d
Fingerprint (sha256): de:2a:f1:23:2c:13:24:50:e6:c9:ed:c9:4c:5c:55:83:0f:9d:29:40:bf:a8:67:54:90:3e:98:29:5e:b8:ab:53
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.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
8 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
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
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----- MIIGETCCBPmgAwIBAgISA5fHu1tMiZGl2SMg17dwgfyTMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xNzA5MDExOTUwMDBaFw0x NzExMzAxOTUwMDBaMCIxIDAeBgNVBAMTF2hlbHBkZXNrLml0LmhrY3QuZWR1Lmhr 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+i8hoWVit01ECAwEAAaOCAhcwggITMA4GA1UdDwEB/wQEAwIFoDAd BgNVHSUEFjAUBggrBgEFBQcDAQYIKwYBBQUHAwIwDAYDVR0TAQH/BAIwADAdBgNV HQ4EFgQUBgsMt5ZuMlxfFg8KY/1GxecqSBwwHwYDVR0jBBgwFoAUqEpqYwR93brm 0Tm3pkVl7/Oo7KEwbwYIKwYBBQUHAQEEYzBhMC4GCCsGAQUFBzABhiJodHRwOi8v b2NzcC5pbnQteDMubGV0c2VuY3J5cHQub3JnMC8GCCsGAQUFBzAChiNodHRwOi8v Y2VydC5pbnQteDMubGV0c2VuY3J5cHQub3JnLzAiBgNVHREEGzAZghdoZWxwZGVz ay5pdC5oa2N0LmVkdS5oazCB/gYDVR0gBIH2MIHzMAgGBmeBDAECATCB5gYLKwYB BAGC3xMBAQEwgdYwJgYIKwYBBQUHAgEWGmh0dHA6Ly9jcHMubGV0c2VuY3J5cHQu b3JnMIGrBggrBgEFBQcCAjCBngyBm1RoaXMgQ2VydGlmaWNhdGUgbWF5IG9ubHkg YmUgcmVsaWVkIHVwb24gYnkgUmVseWluZyBQYXJ0aWVzIGFuZCBvbmx5IGluIGFj Y29yZGFuY2Ugd2l0aCB0aGUgQ2VydGlmaWNhdGUgUG9saWN5IGZvdW5kIGF0IGh0 dHBzOi8vbGV0c2VuY3J5cHQub3JnL3JlcG9zaXRvcnkvMA0GCSqGSIb3DQEBCwUA A4IBAQAd97AzRcdqbwT1q4zwNIHomyVFSp7iKnQHqc1b8JhUaMgpII4DmjBi70+Y bQ9y4WKrJ64a8LZWWyPO/l6fIwkBHUsH4RugzNDsqrFu7rpZUKhE2oFwYxiiMufv xC+FE4WTDuK/YY4aIJ5FxDoswW7E77fWxHnZ4nCRw8mvUFjvWKP6Eo3XwgkSV/r8 RYtdZS/zLCUzNe/5dy0E4D2mO1N9RKRsODJFUbcOUlmve4oQvaOb2cApsIFimtyg 1hZBCnEdPwtANR0roh3CnnV3mF6Fy1CoI2vEe+3aAeuP+IKDNRgP6eKRZuPS+Aqj 0gcTTsWSMfv8tMh3QPMbNfkdn3qL -----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 312984984382779382001487068067219055443091 . . . . . . . . [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 2017-09-01 19:50:00 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2017-11-30 19:50:00 +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) 060b0cb7966e325c5f160f0a63fd46c5e72a481c . . . . . . . . . . . . . . . . [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 '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 (246 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 1.3.6.1.5.5.7.2.2 (unotice) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:12|false] UTF8String 'This Certificate may only be relied upon by Relying Parties and only in accordance with the Certificate Policy found at https://letsencrypt.org/repository/' . . . . [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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