webmail.greenhead.ac.uk

- Greenhead College -

Issued by Cybertrust Educational CA

About this certificate

This digital certificate with serial number 01:00:00:00:00:01:23:09:9f:67:42 was issued on by Cybertrust.

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.


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Greenhead College

Organization: Greenhead College
Organization unit: Network Management
State / Province: West Yorkshire
Locality: Huddersfield
Country: GB

Cybertrust

Organization: Cybertrust
Organization unit: Educational CA
Country: BE

This certificate has expire since

Certificate Details

Serial Number (hex): 01:00:00:00:00:01:23:09:9f:67:42
Serial Number (int): 1208925819615879171630914
Serial Number lenght: 81 bits, 11 octets

SubjectKeyId: d8:79:84:b9:4f:c3:cb:f4:bf:b1:22:d4:e3:9d:87:8f:17:8f:92:f9
AuthorityKeyId: 65:65:a3:3d:d7:3b:11:a3:0a:07:25:37:c9:42:4a:5b:76:77:50:e1

Fingerprint (sha1): 86:3d:0e:b4:3d:f3:d3:a3:08:26:02:87:f4:b8:17:6d:0e:d3:98:43
Fingerprint (sha256): 72:28:49:cb:14:45:7a:81:96:02:6a:d9:cb:80:27:a1:d9:84:a3:10:fd:3f:e6:e1:bd:c2:a1:e5:8e:8e:72:60

Issuing Certificate URL: http://secure.globalsign.net/cacert/educational.crt

Revocation information

CRL Distribution Point: http://crl.globalsign.net/educational.crl

Check the revocation status for certificate webmail.greenhead.ac.uk

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for webmail.greenhead.ac.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

webmail.greenhead.ac.uk

Other certificates including the domain name greenhead.ac.uk

(limited to 100 certificates)

Certificate

The complete raw certificate details for webmail.greenhead.ac.uk in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAqDEp0TwAzpZsjm4r6H53
Jq7LVfHbc8D7lzi6bc3ZP2nCauo/vuiMXUvkCysnQJdRWsDKIYrBKKdvTdHUz9nv
ofUCDk7DzDjGJA5VMCqD4i23kwW8GYq1IT5J5ZeJNoyvTKgQe2BjFd+8WNEJwefF
pHWq6rFXAwXmUlg2hmUswe0WrsmJo5j+vurDHDXNgHMtCxuV7djcwsFJ2TEqhu7k
nvHBAc/74BDgL1404+x5z3pnghCeRKak3Tgl0Rm/u2FqNWwii6mQls3SZmnqOuiA
3+A381sr7JkamhGfRQhqhtTkRY4THJU6xdsLIXyZs7arjQuYjQazHoSiOnY7T203
bQIDAQAB
-----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 1208925819615879171630914
 . . . . . . . . [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 'BE'
 . . . . . . . . . . . . [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 'Cybertrust'
 . . . . . . . . . . . . [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 'Educational CA'
 . . . . . . . . . . . . [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 'Cybertrust Educational CA'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2009-08-11 12:40:42 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2012-08-11 12:40:42 +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:12|false] UTF8String 'West Yorkshire'
 . . . . . . . . . . . . [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:12|false] UTF8String 'Huddersfield'
 . . . . . . . . . . . . [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:12|false] UTF8String 'Greenhead College'
 . . . . . . . . . . . . [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:12|false] UTF8String 'Network Management'
 . . . . . . . . . . . . [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:12|false] UTF8String 'webmail.greenhead.ac.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 21232278585209098900214385031873270672145843621057356459522531827027307950539878487120181134833673512430035885805306134420903404281606958778493093179387978382841099456233606433342894596056707764509813012257097258085153615451231045658296784479527915695940605158971464104743441573165288576572843210646240422329858646452034174302089212572660017276219276687767801567698178484296899902578274135394509602777255857237606860501286101339604504226288456706472282968276576331624328708867643009125729266440910877111423725250360639360728484248221930099931444862002242875952645320365491425929282706285466329353011406380509803919213
 . . . . . . . . . . . . . . . . . . . . [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 2.5.29.32 (certificatePolicies)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (73 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.6334.1.0
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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.globalsign.net/repository/cps.cfm'
 . . . . . . . . . . . . . . . . [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 2.5.29.35 (authorityKeyIdentifier)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (24 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|false] OtherName 6565a33dd73b11a30a072537c9424a5b767750e1
 . . . . . . . . . . . . . . . . [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)
							d87984b94fc3cbf4bfb122d4e39d878f178f92f9
 . . . . . . . . . . . . . . . . [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://crl.globalsign.net/educational.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 (67 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://secure.globalsign.net/cacert/educational.crt'
 . . . . . . . . . . . . . . . . [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 (27 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'webmail.greenhead.ac.uk'
 . . . . [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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