*.cgsb.co.uk

- Chatham Grammar School for Boys Trust -

Issued by GeoTrust SSL CA - G2

About this certificate

This digital certificate with serial number 4f:13:bf:f6:7b:1f:9c:a1:11:2d:72:bc:18:12:a4:69 was issued on by GeoTrust Inc..

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)
  • Sub certificates SHOULD include Subject Key Identifier in end entity certs (RFC 5280: 4.2 & 4.2.1.2)

Chatham Grammar School for Boys Trust

Organization: Chatham Grammar School for Boys Trust
Organization unit: Networks
State / Province: Kent
Locality: Chatham
Country: GB

GeoTrust Inc.

Organization: GeoTrust Inc.
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 4f:13:bf:f6:7b:1f:9c:a1:11:2d:72:bc:18:12:a4:69
Serial Number (int): 105111558775787664231189251243444970601
Serial Number lenght: 127 bits, 16 octets

SubjectKeyId:
AuthorityKeyId: 11:4a:d0:73:39:d5:5b:69:08:5c:ba:3d:bf:64:9a:a8:8b:1c:55:bc

Fingerprint (sha1): 47:f0:2d:a6:30:60:ec:89:8e:32:b0:8f:fd:99:dd:42:88:7d:ec:8a
Fingerprint (sha256): 3f:da:6e:3d:07:3d:01:2a:56:df:8a:b3:4e:66:cc:e4:f1:ed:35:0b:a2:70:cb:59:7d:d4:1d:13:f1:ca:47:21

Issuing Certificate URL: http://gtssl2-aia.geotrust.com/gtssl2.cer

Revocation information

OCSP Server: http://gtssl2-ocsp.geotrust.com
CRL Distribution Point: http://gtssl2-crl.geotrust.com/gtssl2.crl

Check the revocation status for certificate *.cgsb.co.uk

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for *.cgsb.co.uk

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

*.cgsb.co.uk
cgsb.co.uk

Other certificates including the domain name cgsb.co.uk

(limited to 100 certificates)
remoteaccess.cgsb.co.uk
*.cgsb.co.uk
*.cgsb.co.uk
*.cgsb.co.uk
*.cgsb.co.uk
*.cgsb.co.uk
sharepoint.cgsb.co.uk
webmail2010.cgsb.co.uk
*.cgsb.co.uk
*.cgsb.co.uk
officewebapps.cgsb.co.uk
*.cgsb.co.uk

Certificate

The complete raw certificate details for *.cgsb.co.uk in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----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=
-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0lI+vregeeSUhuEJuKbB
5B0wcoA50Jgd1JXrQXn1PlEcyCZWw7iZX5Hx87yIWr6wmmof9SaOyHmV38ngW2YY
G6d8r1vgtbLccZ3JuLsFTwAaMzCwxQ/HZWBQKbvAPtJb5nhtYCleRXYbKFwuEsrk
xnALkLoKcs2bs5BCVISsXyw+W0YXCp8HTKDfERYyC1WvqiMGN9TXExegutq/62HY
zWBoMYLYDVrnt0hT4MVIgvuvYS3TZD/Y6lwa8ldwCZ+ZWNLyf4+Xhf+KOKQZw6jh
ohmnjJ7ecBbHT4VQ/B7zNGz5AZlsLQU9BvEeGHP555cbtvXvHOKjlUJsjZ/BO2zK
AQIDAQAB
-----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 105111558775787664231189251243444970601
 . . . . . . . . [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 - G2'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2013-12-04 00:00:00 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2014-11-30 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 '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:20|false] TeletexString, T61String 'Kent'
 . . . . . . . . . . . . [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 'Chatham'
 . . . . . . . . . . . . [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 'Chatham Grammar School for Boys Trust'
 . . . . . . . . . . . . [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 'Networks'
 . . . . . . . . . . . . [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 '*.cgsb.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 26550600612070269680455855357928554096857585342285495399542607795909724025908784891825035277058628091540739467888412981723371062134659096666347990079738579609481574902043091699805458709262645106104922249645071546298846038044782157234250779828701206752420937286925869970812806899712817088010024525427431574049427295227795236257678768520736069054229741438753878151397127116550731228743690531088940662304289653470157072583629362083510977485364012129743268964194021887154775952998736990061290501654234142045091406983432343422445143031546902266194166166932273050612938814604983627033398103569436209526501358497765123738113
 . . . . . . . . . . . . . . . . . . . . [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 (28 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.cgsb.co.uk'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cgsb.co.uk'
 . . . . . . . . . . . . . . . . [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 2.5.29.31 (cRLDistributionPoints)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (51 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://gtssl2-crl.geotrust.com/gtssl2.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 (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 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 2.5.29.35 (authorityKeyIdentifier)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (24 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|false] OtherName 114ad07339d55b69085cba3dbf649aa88b1c55bc
 . . . . . . . . . . . . . . . . [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 (102 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://gtssl2-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://gtssl2-aia.geotrust.com/gtssl2.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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