www6.cityu.edu.hk

Issued by DigiCert High Assurance CA-3

About this certificate


This digital certificate with serial number 0e:07:09:f2:0e:8a:01:40:03:8e:59:fe:34:f7:9e:67 was issued on by DigiCert Inc .

While the 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.

Cerificate errors/warnings *beta

  • ERROR: stateOrProvinceName is required if organizationName is set

City University of Hong Kong

Organization: City University of Hong Kong
Organization unit: Computing Services Centre
Locality: Hong Kong
Country: HK

DigiCert Inc

Organization: DigiCert Inc
Organization unit: www.digicert.com
Locality: Hong Kong
Country: HK

Time since certificate expired

This certificate has expire since

Certificate Details

Serial Number (hex): 0e:07:09:f2:0e:8a:01:40:03:8e:59:fe:34:f7:9e:67
Serial Number (int): 18645739738399955134876520033591729767
Serial Number lenght: 124 bits, 16 octets

SubjectKeyId: 46:b9:b4:0d:4f:30:fb:94:75:e5:05:f3:ad:dc:0e:fe:a6:1d:70:2f
AuthorityKeyId: 50:ea:73:89:db:29:fb:10:8f:9e:e5:01:20:d4:de:79:99:48:83:f7

Fingerprint (sha1): b3:e5:3f:fc:20:1f:ae:74:9d:ff:78:64:c8:cc:1c:3e:96:6e:4b:4d
Fingerprint (sha256): 83:31:c1:b4:9e:0f:18:91:8c:39:a4:07:ef:43:98:80:6c:82:f2:dd:71:c9:35:2f:8d:d9:01:11:8a:6f:e5:db

Issuing Certificate URL: http://cacerts.digicert.com/DigiCertHighAssuranceCA-3.crt

Revocation information

OCSP Server: http://ocsp.digicert.com
CRL Distribution Point: http://crl3.digicert.com/ca3-g28.crl
CRL Distribution Point: http://crl4.digicert.com/ca3-g28.crl

Check the revocation status for the current certificate on www6.cityu.edu.hk
1
DNS Names
0
Email Addresses
0
IP Addresses

Advanced Certificate Properties

Technical details about this certificate


Public Key Algorithm

RSA

Key Size

2048

Signature Algorithm

SHA1 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

This certificate doesn't contain any other subject alternative names besides the common name of the subject: www6.cityu.edu.hk

Certificate

The complete raw certificate details in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE----- MIIFPjCCBCagAwIBAgIQDgcJ8g6KAUADjln+NPeeZzANBgkqhkiG9w0BAQUFADBm MQswCQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMRkwFwYDVQQLExB3 d3cuZGlnaWNlcnQuY29tMSUwIwYDVQQDExxEaWdpQ2VydCBIaWdoIEFzc3VyYW5j ZSBDQS0zMB4XDTE0MDUyOTAwMDAwMFoXDTE1MDcyODEyMDAwMFowgYgxCzAJBgNV BAYTAkhLMRIwEAYDVQQHEwlIb25nIEtvbmcxJTAjBgNVBAoTHENpdHkgVW5pdmVy c2l0eSBvZiBIb25nIEtvbmcxIjAgBgNVBAsTGUNvbXB1dGluZyBTZXJ2aWNlcyBD ZW50cmUxGjAYBgNVBAMTEXd3dzYuY2l0eXUuZWR1LmhrMIIBIjANBgkqhkiG9w0B AQEFAAOCAQ8AMIIBCgKCAQEAnkmn+UTf356yMk0sn60UT5b21dt8wVyWkLBLeGgX xf7zsJWeXsc5bV+PPLC2YHTnXCAxJxVq51qztsAt6w9XpfhroFV5Gc/2/r004OLf fKUPVH+7+fADOY3ukUOD2QpuKQwr4IZ1TEJqaOKF0FwRxLUCbYElp3U7pI6xwHFH 9M5saO4zjJVinV8DTQNVsku+O5RUVb9W6xxBZlHd+h9xdtYb7d2gh6a4xsSXK+NN IDm6FqkDal+coa0mDOo80AQ09ueOo32nHGC9WpUgrNX4+gCVqXfaJtg7sIK1Lblx EQp8gViHSsNwkz/w6zkAdVKvplGVbS4+ejoCaUCbD651+wIDAQABo4IBwzCCAb8w HwYDVR0jBBgwFoAUUOpzidsp+xCPnuUBINTeeZlIg/cwHQYDVR0OBBYEFEa5tA1P MPuUdeUF863cDv6mHXAvMBwGA1UdEQQVMBOCEXd3dzYuY2l0eXUuZWR1LmhrMA4G A1UdDwEB/wQEAwIFoDAdBgNVHSUEFjAUBggrBgEFBQcDAQYIKwYBBQUHAwIwYQYD VR0fBFowWDAqoCigJoYkaHR0cDovL2NybDMuZGlnaWNlcnQuY29tL2NhMy1nMjgu Y3JsMCqgKKAmhiRodHRwOi8vY3JsNC5kaWdpY2VydC5jb20vY2EzLWcyOC5jcmww QgYDVR0gBDswOTA3BglghkgBhv1sAQEwKjAoBggrBgEFBQcCARYcaHR0cHM6Ly93 d3cuZGlnaWNlcnQuY29tL0NQUzB7BggrBgEFBQcBAQRvMG0wJAYIKwYBBQUHMAGG GGh0dHA6Ly9vY3NwLmRpZ2ljZXJ0LmNvbTBFBggrBgEFBQcwAoY5aHR0cDovL2Nh Y2VydHMuZGlnaWNlcnQuY29tL0RpZ2lDZXJ0SGlnaEFzc3VyYW5jZUNBLTMuY3J0 MAwGA1UdEwEB/wQCMAAwDQYJKoZIhvcNAQEFBQADggEBAKLieCVF46j4+9Dn4TAm 8cpxECiFUQ+FCORi3d/IT3Qe+PR1YN1pgOiBuAhwxnYxliv5w72PhHbI+ILUZsgz tW8wmfMfFe1cUl6rts3HGR0Aq7Np2eGEQ1Cjg/scEo7tPxPNUpEZ5I2ds1RpI9Dw nJSeNSGdD8f1XWD2fm5mg8yTh50nUQ2oYdJdrMME49r+lK6mGfaWYTnWo/KD3Ncv bV3h9X+O7KfyyVk0l61YhqPAOM7mn3QTa6/pEQVByL8XIrXnmkWikLaGLS/U7NtC te4ENOMO0+N9I49yVmjGHuU5Z8PudMoGTeZWX4m9M9sqNgdsLeWVoCtNQHn9pehJ XTU= -----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAnkmn+UTf356yMk0sn60U T5b21dt8wVyWkLBLeGgXxf7zsJWeXsc5bV+PPLC2YHTnXCAxJxVq51qztsAt6w9X pfhroFV5Gc/2/r004OLffKUPVH+7+fADOY3ukUOD2QpuKQwr4IZ1TEJqaOKF0FwR xLUCbYElp3U7pI6xwHFH9M5saO4zjJVinV8DTQNVsku+O5RUVb9W6xxBZlHd+h9x dtYb7d2gh6a4xsSXK+NNIDm6FqkDal+coa0mDOo80AQ09ueOo32nHGC9WpUgrNX4 +gCVqXfaJtg7sIK1LblxEQp8gViHSsNwkz/w6zkAdVKvplGVbS4+ejoCaUCbD651 +wIDAQAB -----END PUBLIC KEY-----

ASN1 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 18645739738399955134876520033591729767 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.5 (sha1WithRSAEncryption) . . . . . . . . . . . . [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 'DigiCert Inc' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.11 (organizationalUnitName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'www.digicert.com' . . . . . . . . . . . . [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 'DigiCert High Assurance CA-3' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2014-05-29 00:00:00 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2015-07-28 12:00:00 +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 2.5.4.6 (countryName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'HK' . . . . . . . . . . . . [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 'Hong Kong' . . . . . . . . . . . . [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 'City University of Hong Kong' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.11 (organizationalUnitName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Computing Services Centre' . . . . . . . . . . . . [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 'www6.cityu.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 (2160 bits) . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 19981973384577454439013215348104026761772266806535163854949416992993033764066213092980832114054710127597138180553756948785883558885720127601556262249002176346562966361164391785190997169268846811245492236040175321735480441287146215262275260686852138503898225426498817709223652632204374522232392742478725749906425821840728213788429893212314392073152133521237518175456928385328765385914840000802564577201223598464079636708678829546013806312477285522547030889573691601596755942016931804341675077162041620474136846559244030991779295052061400236569872098717484593225796562641135161358160335022166678667522247229236923233787 . . . . . . . . . . . . . . . . . . . . [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 50ea7389db29fb108f9ee50120d4de79994883f7 . . . . . . . . . . . . . . . . [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) 46b9b40d4f30fb9475e505f3addc0efea61d702f . . . . . . . . . . . . . . . . [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 (21 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www6.cityu.edu.hk' . . . . . . . . . . . . . . . . [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 2.5.29.31 (cRLDistributionPoints) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (90 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|true] OtherName . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|true] OtherName . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://crl3.digicert.com/ca3-g28.crl' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|true] OtherName . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|true] OtherName . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://crl4.digicert.com/ca3-g28.crl' . . . . . . . . . . . . . . . . [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 (59 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.16.840.1.114412.1.1 (digiCertOVCert) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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://www.digicert.com/CPS' . . . . . . . . . . . . . . . . [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 (111 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.digicert.com' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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://cacerts.digicert.com/DigiCertHighAssuranceCA-3.crt' . . . . . . . . . . . . . . . . [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 1.2.840.113549.1.1.5 (sha1WithRSAEncryption) . . . . . . . . [c:0|t:5|false] NULL . . . . [c:0|t:3|false] BIT STRING (2048 bits) 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