itsm.polyu.edu.hk

Issued by VeriSign Class 3 Secure Server CA - G3

About this certificate


This digital certificate with serial number 04:87:9c:66:4d:2f:41:22:e9:b0:b5:93:39:25:c9:b4 was issued on by VeriSign, 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

  • WARNING: Using depricated TeletexString for '[Hong Kong]'
  • WARNING: Using depricated TeletexString for '[The Hong Kong Polytechnic University]'
  • WARNING: Using depricated TeletexString for '[Information Technology Services Office]'
  • WARNING: Using depricated TeletexString for '[itsm.polyu.edu.hk]'

The Hong Kong Polytechnic University

Organization: The Hong Kong Polytechnic University
Organization unit: Information Technology Services Office
State / Province: Hong Kong
Locality: Hong Kong
Country: CN

VeriSign, Inc.

Organization: VeriSign, Inc.
Organization unit: VeriSign Trust Network
Organization unit: Terms of use at https://www.verisign.com/rpa (c)10
State / Province: Hong Kong
Locality: Hong Kong
Country: CN

Time since certificate expired

This certificate has expire since

Certificate Details

Serial Number (hex): 04:87:9c:66:4d:2f:41:22:e9:b0:b5:93:39:25:c9:b4
Serial Number (int): 6021044220100084204630717104994503092
Serial Number lenght: 123 bits, 16 octets

SubjectKeyId:
AuthorityKeyId: 0d:44:5c:16:53:44:c1:82:7e:1d:20:ab:25:f4:01:63:d8:be:79:a5

Fingerprint (sha1): ae:fc:7d:34:ca:8c:f1:72:37:98:7a:98:6b:4e:ee:59:7c:09:fb:97
Fingerprint (sha256): 93:ab:18:e5:5b:16:c5:8d:86:6b:71:b9:f5:26:68:ce:2c:06:76:13:15:c4:a9:a6:28:dc:10:9f:ba:17:ce:6f

Issuing Certificate URL: http://SVRSecure-G3-aia.verisign.com/SVRSecureG3.cer

Revocation information

OCSP Server: http://ocsp.verisign.com
CRL Distribution Point: http://SVRSecure-G3-crl.verisign.com/SVRSecureG3.crl

Check the revocation status for the current certificate on itsm.polyu.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

8 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: itsm.polyu.edu.hk

Certificate

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

Certificate (PEM)

-----BEGIN CERTIFICATE----- MIIFdTCCBF2gAwIBAgIQBIecZk0vQSLpsLWTOSXJtDANBgkqhkiG9w0BAQUFADCB tTELMAkGA1UEBhMCVVMxFzAVBgNVBAoTDlZlcmlTaWduLCBJbmMuMR8wHQYDVQQL ExZWZXJpU2lnbiBUcnVzdCBOZXR3b3JrMTswOQYDVQQLEzJUZXJtcyBvZiB1c2Ug YXQgaHR0cHM6Ly93d3cudmVyaXNpZ24uY29tL3JwYSAoYykxMDEvMC0GA1UEAxMm VmVyaVNpZ24gQ2xhc3MgMyBTZWN1cmUgU2VydmVyIENBIC0gRzMwHhcNMTQwMzEw MDAwMDAwWhcNMTUwMzExMjM1OTU5WjCBsTELMAkGA1UEBhMCQ04xEjAQBgNVBAgT CUhvbmcgS29uZzESMBAGA1UEBxQJSG9uZyBLb25nMS0wKwYDVQQKFCRUaGUgSG9u ZyBLb25nIFBvbHl0ZWNobmljIFVuaXZlcnNpdHkxLzAtBgNVBAsUJkluZm9ybWF0 aW9uIFRlY2hub2xvZ3kgU2VydmljZXMgT2ZmaWNlMRowGAYDVQQDFBFpdHNtLnBv bHl1LmVkdS5oazCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAKU/s4NF bs78UVxDNvzN9XvOoM5GSJAFk2pXRJWwF4q59c6w3GXp7lVoPJjsVTu6cBRkW/bF gqeYB8r3W+tj/XvLaehcyRtlEnALfFc1j5EAQk5oSCIv+sS1PKYsnslEu9n+e5Cb GYXWWNgB89GvrZRtP9GzKV87m7DdQPbVGXnJgrSt/U3xDWQ8uBN0cQKMSryPii6V kH9ztogj5cTV59bohw+rLqjED0BKl37ZpdfrN2RBBzwhcsOIt14Ftv6YrXjvLD5K Cn15W9bh/eUfWSWnEMkEfiGC98zXhfBCsdIZhNb8BFFdxYi6DdY8CQE9y4MBVXjM AQqpyXLS8ESoA2UCAwEAAaOCAYEwggF9MBwGA1UdEQQVMBOCEWl0c20ucG9seXUu ZWR1LmhrMAkGA1UdEwQCMAAwDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQGCCsG AQUFBwMBBggrBgEFBQcDAjBDBgNVHSAEPDA6MDgGCmCGSAGG+EUBBzYwKjAoBggr BgEFBQcCARYcaHR0cHM6Ly93d3cudmVyaXNpZ24uY29tL2NwczAfBgNVHSMEGDAW gBQNRFwWU0TBgn4dIKsl9AFj2L55pTBFBgNVHR8EPjA8MDqgOKA2hjRodHRwOi8v U1ZSU2VjdXJlLUczLWNybC52ZXJpc2lnbi5jb20vU1ZSU2VjdXJlRzMuY3JsMHYG CCsGAQUFBwEBBGowaDAkBggrBgEFBQcwAYYYaHR0cDovL29jc3AudmVyaXNpZ24u Y29tMEAGCCsGAQUFBzAChjRodHRwOi8vU1ZSU2VjdXJlLUczLWFpYS52ZXJpc2ln bi5jb20vU1ZSU2VjdXJlRzMuY2VyMA0GCSqGSIb3DQEBBQUAA4IBAQA8EmIgx+Zv hnOnv/ruYGILkWPLbgVy6qAy5/EWiGLYpwEnPfcTb0nqx7oMmxuOBU+dvclgLfsR t3ojGn4k32aBf0JfSNY7nEXGtx41ffoKVMKTXYXN53Y9kY6eblTCERJeqlfZNdWI YDVq8JQvExy58NO/Zlr0YrqJkCOEnddtx6Ts0sHSEHIiGb6KpOzavASih0E5/V2V iY30zeNhNZ5g+uqp/i2HJgA4/5xl9SL1EDM3X3h4rDCrnF3hF7Tc4i7uMLwH/AMs lBcu772BHFAvwsJljtWDx6anGBd7/7E4/G6GHZIW9z9Q04IlRQmElJSNbKzu29nR eZsIVfNShxd1 -----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEApT+zg0VuzvxRXEM2/M31 e86gzkZIkAWTaldElbAXirn1zrDcZenuVWg8mOxVO7pwFGRb9sWCp5gHyvdb62P9 e8tp6FzJG2UScAt8VzWPkQBCTmhIIi/6xLU8piyeyUS72f57kJsZhdZY2AHz0a+t lG0/0bMpXzubsN1A9tUZecmCtK39TfENZDy4E3RxAoxKvI+KLpWQf3O2iCPlxNXn 1uiHD6suqMQPQEqXftml1+s3ZEEHPCFyw4i3XgW2/piteO8sPkoKfXlb1uH95R9Z JacQyQR+IYL3zNeF8EKx0hmE1vwEUV3FiLoN1jwJAT3LgwFVeMwBCqnJctLwRKgD ZQIDAQAB -----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 6021044220100084204630717104994503092 . . . . . . . . [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 'VeriSign, 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 'VeriSign Trust Network' . . . . . . . . . . . . [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 'Terms of use at https://www.verisign.com/rpa (c)10' . . . . . . . . . . . . [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 'VeriSign Class 3 Secure Server CA - G3' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2014-03-10 00:00:00 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2015-03-11 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 2.5.4.6 (countryName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'CN' . . . . . . . . . . . . [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 '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 2.5.4.7 (localityName) . . . . . . . . . . . . . . . . . . . . [c:0|t:20|false] TeletexString, T61String '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:20|false] TeletexString, T61String 'The Hong Kong Polytechnic University' . . . . . . . . . . . . [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:20|false] TeletexString, T61String 'Information Technology Services Office' . . . . . . . . . . . . [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:20|false] TeletexString, T61String 'itsm.polyu.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 20860732562614603657406549724627486361012035717805060074358042024229879983260913498291731259702502110486532978757300929167179695961408304101459112809373848405671493924403962962080029798358992990344347852768731957817928763528715606286351513900019804921993101640576676446412123316614686634272606879282366170893654803777796017181901807638157616676197998158043487904399977966980946213192510778915296669188291959946315292840969790099641000065520289792480435698714772642147514126669384638150000437467916261853640902351924451179313547468735785725172113842169226400172473420629199394711266779134900812657820624433157381817189 . . . . . . . . . . . . . . . . . . . . [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 2.5.29.17 (subjectAltName) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (21 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'itsm.polyu.edu.hk' . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.19 (basicConstraints) . . . . . . . . . . . . . . . . . . . . [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 2.5.29.15 (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 2.5.29.32 (certificatePolicies) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (60 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.16.840.1.113733.1.7.54 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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.verisign.com/cps' . . . . . . . . . . . . . . . . [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 0d445c165344c1827e1d20ab25f40163d8be79a5 . . . . . . . . . . . . . . . . [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 (62 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://SVRSecure-G3-crl.verisign.com/SVRSecureG3.crl' . . . . . . . . . . . . . . . . [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 (106 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.verisign.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://SVRSecure-G3-aia.verisign.com/SVRSecureG3.cer' . . . . [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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