www.open.edu

- The Open University -

Issued by TERENA SSL CA

About this certificate

This digital certificate with serial number 9e:64:e8:c5:a1:a5:ef:61:d6:6e:48:f9:6f:2b:4a:be was issued on by TERENA.

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)

The Open University

Organization: The Open University
Organization unit: IT-Host-Systems
State / Province: Buckinghamshire
Locality: Milton Keynes
Country: GB

TERENA

Organization: TERENA
Country: NL

This certificate has expire since

Certificate Details

Serial Number (hex): 9e:64:e8:c5:a1:a5:ef:61:d6:6e:48:f9:6f:2b:4a:be
Serial Number (int): 210541974196873942971115345328925788862
Serial Number lenght: 128 bits, 16 octets

SubjectKeyId: 23:91:62:7d:94:c4:41:89:96:61:4f:d5:40:8c:83:59:a0:12:f7:b4
AuthorityKeyId: 0c:bd:93:68:0c:f3:de:ab:a3:49:6b:2b:37:57:47:ea:90:e3:b9:ed

Fingerprint (sha1): b6:fd:7b:dc:51:c5:82:2c:d3:16:f1:2f:9c:42:f5:72:53:70:5f:ed
Fingerprint (sha256): f8:4b:1a:1e:d2:15:1e:69:d4:07:bb:72:2f:ed:ae:b9:08:cb:20:8e:ba:63:03:e7:f1:dd:a8:7f:a3:e3:70:61

Issuing Certificate URL: http://crt.tcs.terena.org/TERENASSLCA.crt

Revocation information

OCSP Server: http://ocsp.tcs.terena.org
CRL Distribution Point: http://crl.tcs.terena.org/TERENASSLCA.crl

Check the revocation status for certificate www.open.edu

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.open.edu

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

www.open.edu

Other certificates including the domain name open.edu

(limited to 100 certificates)

Certificate

The complete raw certificate details for www.open.edu in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAw5HaReCGJpqWsaQVVZxA
ismN4p5TCcgAmjjYd32lpI2h0ABwVyFVu/8gf/Sv0MkDlKHIUFi8E9bLkJYb4sfk
ILrv7D3mcderxKhryi7QX5vLmNp2URiuImU9KJu8QkXypmkWFo5KoW0/LXB1sF5+
9Cc3g1nPrekDHWNKCTEf5wPONDNsi11YSp9Yv2qN9lADBbpAtp9/AKpL7tM8SaEs
H2iRNysW5aatLUQUPWKOUt0A7oN73ejDDtBvLW2sMsBvUanhMBCSR8ozt6d/Z8UF
5UTBNWqBtzqcB0FjPyj+2ZxkIq0j+fPEoW8IuYFiYCzuHkwPxhu2+ODYhGgwKm6X
TQIDAQAB
-----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 210541974196873942971115345328925788862
 . . . . . . . . [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 'NL'
 . . . . . . . . . . . . [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 'TERENA'
 . . . . . . . . . . . . [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 'TERENA SSL CA'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2012-09-20 00:00:00 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2015-09-20 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:19|false] PrintableString 'Buckinghamshire'
 . . . . . . . . . . . . [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 'Milton Keynes'
 . . . . . . . . . . . . [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 'The Open 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:19|false] PrintableString 'IT-Host-Systems'
 . . . . . . . . . . . . [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.open.edu'
 . . . . . . . . [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 24688392080205143751826754889104005801892219679263535462141775461125696829094331095364305147918683811187768896056600890630227076156264706210082200142105488991852183692820504320341491716235056438590479721592687463326916084078299851453445058607374678721046685380836267538745649941867658607236719568563527571246768195627570402199473907265391149867968981329417848701664384161223703763126621341478482993031197548038511717734236507971159886651273406685093975231302074808335776103284388432307086292946112739300064333770760725992822127878901307676255975785389671040735849141122390541534983418958887907083958132074899313694541
 . . . . . . . . . . . . . . . . . . . . [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 0cbd93680cf3deaba3496b2b375747ea90e3b9ed
 . . . . . . . . . . . . . . . . [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)
							2391627d94c4418996614fd5408c8359a012f7b4
 . . . . . . . . . . . . . . . . [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 2.5.29.19 (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 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 (17 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.6449.1.2.2.29
 . . . . . . . . . . . . . . . . [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.tcs.terena.org/TERENASSLCA.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 (97 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://crt.tcs.terena.org/TERENASSLCA.crt'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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.tcs.terena.org'
 . . . . . . . . . . . . . . . . [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 (16 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.open.edu'
 . . . . [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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