hkumockup4.its.hku.hk
Issued by Sectigo RSA Domain Validation Secure Server CA
About this certificate
This digital certificate with serial number 53:98:37:df:9c:3b:46:3e:a5:c5:5c:a2:35:8e:0f:bd was issued on by Sectigo Limited.
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=hkumockup4.its.hku.hk
Sectigo Limited
Organization:
Sectigo Limited
State / Province:
Greater Manchester
Locality: Salford
Country: GB
Locality: Salford
Country: GB
This certificate has expire since
Certificate Details
Serial Number (hex): 53:98:37:df:9c:3b:46:3e:a5:c5:5c:a2:35:8e:0f:bdSerial Number (int): 111116286021405072650157304630385446845
Serial Number lenght: 127 bits, 16 octets
SubjectKeyId: c3:22:53:b3:ea:d0:b3:05:95:f8:73:7a:e4:8a:e6:1f:27:14:ee:c0
AuthorityKeyId: 8d:8c:5e:c4:54:ad:8a:e1:77:e9:9b:f9:9b:05:e1:b8:01:8d:61:e1
Fingerprint (sha1): 87:ac:58:a1:5b:a9:7a:6d:99:3f:85:06:31:1b:4e:5a:9e:6b:1a:69
Fingerprint (sha256): 01:b1:a3:55:36:72:d7:ec:0f:c9:9c:a8:0c:3c:3c:88:74:11:47:56:32:47:64:98:ce:c6:64:12:90:85:5d:45
Issuing Certificate URL: http://crt.sectigo.com/SectigoRSADomainValidationSecureServerCA.crt
Revocation information
OCSP Server: http://ocsp.sectigo.comCheck the revocation status for certificate hkumockup4.its.hku.hk
2
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for hkumockup4.its.hku.hk
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
hkumockup4.its.hku.hk
www.hkumockup4.its.hku.hk
www.hkumockup4.its.hku.hk
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Certificate
The complete raw certificate details for hkumockup4.its.hku.hk in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIF1TCCBL2gAwIBAgIQU5g335w7Rj6lxVyiNY4PvTANBgkqhkiG9w0BAQsFADCB jzELMAkGA1UEBhMCR0IxGzAZBgNVBAgTEkdyZWF0ZXIgTWFuY2hlc3RlcjEQMA4G A1UEBxMHU2FsZm9yZDEYMBYGA1UEChMPU2VjdGlnbyBMaW1pdGVkMTcwNQYDVQQD Ey5TZWN0aWdvIFJTQSBEb21haW4gVmFsaWRhdGlvbiBTZWN1cmUgU2VydmVyIENB MB4XDTIwMDMxNjAwMDAwMFoXDTIwMDYxNDIzNTk1OVowIDEeMBwGA1UEAxMVaGt1 bW9ja3VwNC5pdHMuaGt1LmhrMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKC AQEAkf6OV+AKO5ZRKu0O4z3u+KipmpcTz+msjitNd65R5xP/WeKtBP76dykwV4ux mjK3WY9v8m1a4m0Pt/pa9nB3AKsSVunQyQ3kaPPIe6CVzg3GbZ5AHNgG4Pg2/igI a8YR5NdKUxk+vbX4Y1n8Aj7jDijwF04kMjBMpjcictBHxC34dHzOFsaUZ30oQO3y sjH0WL9/i3+V20VzrZjkkmQR/ocWiKccT3vQzMJa+TNZGWpgKsR3fLQyNC6CDifZ m5zH93plOMGgKDMZfMGcJa2mHQs5wIPSnHhuCwhtfDvqTwCvyquvHhvFX/M//V0F HXM0iTw6t4QvUWh/ydPf30Bu5QIDAQABo4ICmTCCApUwHwYDVR0jBBgwFoAUjYxe xFStiuF36Zv5mwXhuAGNYeEwHQYDVR0OBBYEFMMiU7Pq0LMFlfhzeuSK5h8nFO7A MA4GA1UdDwEB/wQEAwIFoDAMBgNVHRMBAf8EAjAAMB0GA1UdJQQWMBQGCCsGAQUF BwMBBggrBgEFBQcDAjBJBgNVHSAEQjBAMDQGCysGAQQBsjEBAgIHMCUwIwYIKwYB BQUHAgEWF2h0dHBzOi8vc2VjdGlnby5jb20vQ1BTMAgGBmeBDAECATCBhAYIKwYB BQUHAQEEeDB2ME8GCCsGAQUFBzAChkNodHRwOi8vY3J0LnNlY3RpZ28uY29tL1Nl Y3RpZ29SU0FEb21haW5WYWxpZGF0aW9uU2VjdXJlU2VydmVyQ0EuY3J0MCMGCCsG AQUFBzABhhdodHRwOi8vb2NzcC5zZWN0aWdvLmNvbTCCAQUGCisGAQQB1nkCBAIE gfYEgfMA8QB2AAe3XBvlfWj/8bDGHSMVx7rmV3xXlLdq7rxhOhpp06IcAAABcOL8 IGEAAAQDAEcwRQIhAPj084ggMHLQ8deNQT7+0A/zcvGnyyVRu1Dx0OwtOOt7AiB2 vk9q8rq8kC/MvdP0wN8iVEtT91ze0amX0ZO/fHA5uAB3AOcS8rA3fhpi+47JDGGE 8ep7N8tWHREmW/Pg80vyQVRuAAABcOL8IDIAAAQDAEgwRgIhANjngTmqcyBPyG1W Avs0KW4ODzUn9PUqbLmNYnrP2mZ3AiEAg9JOWKD+eyY8zTlMehHnhoJXXJ/3iux/ oZ+py5YbIsswOwYDVR0RBDQwMoIVaGt1bW9ja3VwNC5pdHMuaGt1Lmhrghl3d3cu aGt1bW9ja3VwNC5pdHMuaGt1LmhrMA0GCSqGSIb3DQEBCwUAA4IBAQAuh3wO0RSD OYn326DNAT/9UMdw1VjrCXlsH3iwoH9ooYd1oFYQ+p13Xhze6rmt7G5Hnlq8+tmF eHFTyQsMMNe7HjEoJTCoFHdD+C7W/zRxaIUN0bDil9WCPmtekuFHteQmVRt1zPmM APv6kg+hCV50Y5ltz3bLLCucsLjbYWoMT6kB9VVDkv8m8VDH+WykygS3Cto/80bQ et8X8qp/TuTAXaSKCUUqEgAeTIAzUO+jXbhKpzLW0fFVG2LMf8bB7o7dZOb2In7N QO12YBkBQd6wbhrAU23S5IpGDLzTj8IHVBQmDLJRZNxWUtE53iRJh+CcNdaoMjIr iGhIsv61k+ME -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAkf6OV+AKO5ZRKu0O4z3u +KipmpcTz+msjitNd65R5xP/WeKtBP76dykwV4uxmjK3WY9v8m1a4m0Pt/pa9nB3 AKsSVunQyQ3kaPPIe6CVzg3GbZ5AHNgG4Pg2/igIa8YR5NdKUxk+vbX4Y1n8Aj7j DijwF04kMjBMpjcictBHxC34dHzOFsaUZ30oQO3ysjH0WL9/i3+V20VzrZjkkmQR /ocWiKccT3vQzMJa+TNZGWpgKsR3fLQyNC6CDifZm5zH93plOMGgKDMZfMGcJa2m HQs5wIPSnHhuCwhtfDvqTwCvyquvHhvFX/M//V0FHXM0iTw6t4QvUWh/ydPf30Bu 5QIDAQAB -----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 111116286021405072650157304630385446845 . . . . . . . . [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 'GB' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.8 (stateOrProvinceName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Greater Manchester' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.7 (localityName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Salford' . . . . . . . . . . . . [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 'Sectigo Limited' . . . . . . . . . . . . [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 'Sectigo RSA Domain Validation Secure Server CA' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-03-16 00:00:00 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-06-14 23:59:59 +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 'hkumockup4.its.hku.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 (2160 bits) . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 18430080476094624285971585843920481850367698131217600542876669447358664220251308440811923697585316385145699571260480441992084042296218246066828991296602267789242390312692993521879824235987007384230596700273013946013467813802607621564737601416498272732024681935904640282052842719824857799538723771054040912680104887868519865746526991203588918358441395899997768788794001593796874522687153058482948405224180095194123669448262000205951207527479355710339005743297305826533068370506409883974273600008607964534012309102739666932605368845198103295211815376473752467009427668435583085162321211122514653425681882546213769735909 . . . . . . . . . . . . . . . . . . . . [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 2.5.29.35 (authorityKeyIdentifier) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (24 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|false] OtherName 8d8c5ec454ad8ae177e99bf99b05e1b8018d61e1 . . . . . . . . . . . . . . . . [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) c32253b3ead0b30595f8737ae48ae61f2714eec0 . . . . . . . . . . . . . . . . [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 2.5.29.19 (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 2.5.29.37 (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 2.5.29.32 (certificatePolicies) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (66 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.6449.1.2.2.7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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 'https://sectigo.com/CPS' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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 1.3.6.1.5.5.7.1.1 (authorityInfoAccess) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (120 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.2 (caIssuers) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://crt.sectigo.com/SectigoRSADomainValidationSecureServerCA.crt' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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.sectigo.com' . . . . . . . . . . . . . . . . [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 (246 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes) 00f100760007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c00000170e2fc20610000040300473045022100f8f4f388203072d0f1d78d413efed00ff372f1a7cb2551bb50f1d0ec2d38eb7b022076be4f6af2babc902fccbdd3f4c0df22544b53f75cded1a997d193bf7c7039b8007700e712f2b0377e1a62fb8ec90c6184f1ea7b37cb561d11265bf3e0f34bf241546e00000170e2fc20320000040300483046022100d8e78139aa73204fc86d5602fb34296e0e0f3527f4f52a6cb98d627acfda667702210083d24e58a0fe7b263ccd394c7a11e78682575c9ff78aec7fa19fa9cb961b22cb . . . . . . . . . . . . . . . . [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 (52 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'hkumockup4.its.hku.hk' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.hkumockup4.its.hku.hk' . . . . [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) 002e877c0ed114833989f7dba0cd013ffd50c770d558eb09796c1f78b0a07f68a18775a05610fa9d775e1cdeeab9adec6e479e5abcfad985787153c90b0c30d7bb1e31282530a8147743f82ed6ff347168850dd1b0e297d5823e6b5e92e147b5e426551b75ccf98c00fbfa920fa1095e7463996dcf76cb2c2b9cb0b8db616a0c4fa901f5554392ff26f150c7f96ca4ca04b70ada3ff346d07adf17f2aa7f4ee4c05da48a09452a12001e4c803350efa35db84aa732d6d1f1551b62cc7fc6c1ee8edd64e6f6227ecd40ed7660190141deb06e1ac0536dd2e48a460cbcd38fc2075414260cb25164dc5652d139de244987e09c35d6a832322b886848b2feb593e304