www.collinsonlinelearning.co.uk

Issued by GeoTrust SSL CA

About this certificate


This digital certificate with serial number 01:aa:90 was issued on by GeoTrust, Inc. .

With 2 subject alternative names this certificate can be used to secure multiple fqdn's. 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: businessCategory is required for [EV] certificates
  • ERROR: jurisdictionCountryName is required for [EV] certificates

HarperCollins Publishers LTD

Company registration number: Pm49hqTpovgy4jHA6cmKJ0/iJhYLbw9/
Organization: HarperCollins Publishers LTD
State / Province: London
Locality: London
Country: GB

GeoTrust, Inc.

Organization: GeoTrust, Inc.
State / Province: London
Locality: London
Country: GB

Time since certificate expired

This certificate has expire since

Certificate Details

Serial Number (hex): 01:aa:90
Serial Number (int): 109200
Serial Number lenght: 17 bits, 3 octets

SubjectKeyId: 3a:3a:c0:d5:f2:34:39:75:37:e7:c8:61:c1:5b:cf:f8:f3:6d:38:1e
AuthorityKeyId: 42:79:54:1b:61:cd:55:2b:3e:63:d5:3c:48:57:f5:9f:fb:45:ce:4a

Fingerprint (sha1): a3:1c:07:67:9c:bc:4f:ad:02:c8:2a:d3:e8:0e:ad:5c:53:66:d9:1c
Fingerprint (sha256): 1e:b4:90:c8:4f:ea:1e:8b:0c:be:b1:d9:cb:da:bd:26:d5:99:c4:2c:fd:f2:d8:a8:56:e8:d1:3c:b0:b1:88:42

Issuing Certificate URL: http://gtssl-aia.geotrust.com/gtssl.crt

Revocation information

OCSP Server: http://gtssl-ocsp.geotrust.com
CRL Distribution Point: http://gtssl-crl.geotrust.com/crls/gtssl.crl

Check the revocation status for the current certificate on www.collinsonlinelearning.co.uk
2
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
Data 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

www.collinsonlinelearning.co.uk
collinsonlinelearning.co.uk

Certificate

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

Certificate (PEM)

-----BEGIN CERTIFICATE----- MIIFMzCCBBugAwIBAgIDAaqQMA0GCSqGSIb3DQEBBQUAMEAxCzAJBgNVBAYTAlVT MRcwFQYDVQQKEw5HZW9UcnVzdCwgSW5jLjEYMBYGA1UEAxMPR2VvVHJ1c3QgU1NM IENBMB4XDTEyMDkxMDEwMDgwMloXDTEzMDkxMzA3MjQyN1owgasxKTAnBgNVBAUT IFBtNDlocVRwb3ZneTRqSEE2Y21LSjAvaUpoWUxidzkvMQswCQYDVQQGEwJHQjEP MA0GA1UECBMGTG9uZG9uMQ8wDQYDVQQHEwZMb25kb24xJTAjBgNVBAoTHEhhcnBl ckNvbGxpbnMgUHVibGlzaGVycyBMVEQxKDAmBgNVBAMTH3d3dy5jb2xsaW5zb25s aW5lbGVhcm5pbmcuY28udWswggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIB AQCdnyCexEK/YxFE7mw/1vQNCFOMWp6CBmb6BcvTYJ0gkNzq3WiZjPeHXlYpFMUc i9rVgYxU3VujxswFQc7jJcnlu3k+va3ftYX58tVSDCuy3l+6tjXq2cqdzT+gGCBj aPR7Q9jRUWkl6LVWrqJ6sYj9WrrILI7oaV179U862kiWkNEY2m09lQ++wWseGmcB IkXCwxdJd8QhVnFQ5YdfYcR7sNPafcnR2hUJq+pxKjbjEPk/IZ/rnvymfH6kZN9N 55J5CnkmRsI1dfeE9MQeZP9eUMjmS6uJeisIlKCxgC7AphGjAdrvaZoIbbPSjyho 3D+a22s/dSsVv5K773vFA1oRAgMBAAGjggHIMIIBxDAfBgNVHSMEGDAWgBRCeVQb Yc1VKz5j1TxIV/Wf+0XOSjAOBgNVHQ8BAf8EBAMCBLAwHQYDVR0lBBYwFAYIKwYB BQUHAwEGCCsGAQUFBwMCMEcGA1UdEQRAMD6CH3d3dy5jb2xsaW5zb25saW5lbGVh cm5pbmcuY28udWuCG2NvbGxpbnNvbmxpbmVsZWFybmluZy5jby51azA9BgNVHR8E NjA0MDKgMKAuhixodHRwOi8vZ3Rzc2wtY3JsLmdlb3RydXN0LmNvbS9jcmxzL2d0 c3NsLmNybDAdBgNVHQ4EFgQUOjrA1fI0OXU358hhwVvP+PNtOB4wDAYDVR0TAQH/ BAIwADBvBggrBgEFBQcBAQRjMGEwKgYIKwYBBQUHMAGGHmh0dHA6Ly9ndHNzbC1v Y3NwLmdlb3RydXN0LmNvbTAzBggrBgEFBQcwAoYnaHR0cDovL2d0c3NsLWFpYS5n ZW90cnVzdC5jb20vZ3Rzc2wuY3J0MEwGA1UdIARFMEMwQQYKYIZIAYb4RQEHNjAz MDEGCCsGAQUFBwIBFiVodHRwOi8vd3d3Lmdlb3RydXN0LmNvbS9yZXNvdXJjZXMv Y3BzMA0GCSqGSIb3DQEBBQUAA4IBAQBP+B5jrnx20zzSepbxLCrQ8neEm89q4Gz0 KJ1ZZlRVrg5xBCqOahARFY7P3iQzPwQ3z36WGxMWgwXjbOyOC8iI6EtzXOtzyf7U +xcZ6JaL+6fowBcMTDzIabeVjuSLALl9e/MXD7bS9APnEpWTn0I1W5fP+Xb4yGJi DHQfMlJpdkA1/cFcrYfR3ZTHly5QnZw2w7ujkk99HyWTMnybbC2Zz7zH2cVSrSlO Cm4yObva8RALKzhTFwKNIkTf4sn1sfFVXmps6iJRc4ZpAQwV9HQSkqBuuidmlkBn 3OZIFZPv0hqc4dxicQhtWfEje9kYE34LfSIwSxY0o7wVCOh9L3YU -----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAnZ8gnsRCv2MRRO5sP9b0 DQhTjFqeggZm+gXL02CdIJDc6t1omYz3h15WKRTFHIva1YGMVN1bo8bMBUHO4yXJ 5bt5Pr2t37WF+fLVUgwrst5furY16tnKnc0/oBggY2j0e0PY0VFpJei1Vq6ierGI /Vq6yCyO6Glde/VPOtpIlpDRGNptPZUPvsFrHhpnASJFwsMXSXfEIVZxUOWHX2HE e7DT2n3J0doVCavqcSo24xD5PyGf6578pnx+pGTfTeeSeQp5JkbCNXX3hPTEHmT/ XlDI5kuriXorCJSgsYAuwKYRowHa72maCG2z0o8oaNw/mttrP3UrFb+Su+97xQNa EQIDAQAB -----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 109200 . . . . . . . . [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 'GeoTrust, Inc.' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.3 (commonName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'GeoTrust SSL CA' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2012-09-10 10:08:02 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2013-09-13 07:24:27 +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 2.5.4.5 (serialNumber) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Pm49hqTpovgy4jHA6cmKJ0/iJhYLbw9/' . . . . . . . . . . . . [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 'London' . . . . . . . . . . . . [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 'London' . . . . . . . . . . . . [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 'HarperCollins Publishers LTD' . . . . . . . . . . . . [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 'www.collinsonlinelearning.co.uk' . . . . . . . . [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 19897882536315600729743343188351597841035399726404427632632856070390895745071178280333078464212316948383196345076700579512540589262498705913951865062140695911181876401134653568529250051969384629944190502809220798205772204088165187266540400387657799019902635096317032826829314450690183430142252778481501335342681769467495271918176007675314550848719425581209603412343090727684773603844759975392071012167098883230572540314974372317203903999912710382030502606655308961345556498804333895677447836888552953505323712144703263017557892042344773221420461835756513104904257417120078171268358498092051565252844481621067770845713 . . . . . . . . . . . . . . . . . . . . [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 4279541b61cd552b3e63d53c4857f59ffb45ce4a . . . . . . . . . . . . . . . . [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 (4 bits) 04b0 . . . . . . . . . . . . . . . . [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 2.5.29.17 (subjectAltName) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (64 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.collinsonlinelearning.co.uk' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'collinsonlinelearning.co.uk' . . . . . . . . . . . . . . . . [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 (54 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://gtssl-crl.geotrust.com/crls/gtssl.crl' . . . . . . . . . . . . . . . . [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) 3a3ac0d5f234397537e7c861c15bcff8f36d381e . . . . . . . . . . . . . . . . [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 1.3.6.1.5.5.7.1.1 (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://gtssl-ocsp.geotrust.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://gtssl-aia.geotrust.com/gtssl.crt' . . . . . . . . . . . . . . . . [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 (69 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 'http://www.geotrust.com/resources/cps' . . . . [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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