spam.clarku.edu

Issued by GeoTrust SSL CA

About this certificate


This digital certificate with serial number 02:78:4a was issued on by GeoTrust, 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

  • ERROR: businessCategory is required for [EV] certificates
  • ERROR: jurisdictionCountryName is required for [EV] certificates

Clark University

Company registration number: L/Sw9MhCSAUK2MmG3T2vXOxupevP0M/v
Organization: Clark University
Organization unit: ITS
State / Province: Massachusetts
Locality: Worcester
Country: US

GeoTrust, Inc.

Organization: GeoTrust, Inc.
State / Province: Massachusetts
Locality: Worcester
Country: US

Time since certificate expired

This certificate has expire since

Certificate Details

Serial Number (hex): 02:78:4a
Serial Number (int): 161866
Serial Number lenght: 18 bits, 3 octets

SubjectKeyId: 26:47:e0:ee:3f:72:6e:4f:b1:3e:e5:4e:32:0f:34:a0:a4:33:59:cc
AuthorityKeyId: 42:79:54:1b:61:cd:55:2b:3e:63:d5:3c:48:57:f5:9f:fb:45:ce:4a

Fingerprint (sha1): 58:39:04:66:a4:8f:fc:cf:8e:87:b5:f6:eb:65:b2:54:11:53:5e:fb
Fingerprint (sha256): b1:00:65:33:ab:46:80:96:bc:e6:a3:39:c2:98:4f:44:a8:69:28:13:d8:a8:f0:db:f3:9a:53:1a:8c:d7:c9:3e

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 spam.clarku.edu
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
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

This certificate doesn't contain any other subject alternative names besides the common name of the subject: spam.clarku.edu

Certificate

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

Certificate (PEM)

-----BEGIN CERTIFICATE----- MIIFAjCCA+qgAwIBAgIDAnhKMA0GCSqGSIb3DQEBBQUAMEAxCzAJBgNVBAYTAlVT MRcwFQYDVQQKEw5HZW9UcnVzdCwgSW5jLjEYMBYGA1UEAxMPR2VvVHJ1c3QgU1NM IENBMB4XDTEzMDgyODA3NTAyM1oXDTE0MDgwNTA0NTQ0MVowgacxKTAnBgNVBAUT IEwvU3c5TWhDU0FVSzJNbUczVDJ2WE94dXBldlAwTS92MQswCQYDVQQGEwJVUzEW MBQGA1UECBMNTWFzc2FjaHVzZXR0czESMBAGA1UEBxMJV29yY2VzdGVyMRkwFwYD VQQKExBDbGFyayBVbml2ZXJzaXR5MQwwCgYDVQQLEwNJVFMxGDAWBgNVBAMTD3Nw YW0uY2xhcmt1LmVkdTCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAMwR P0JO9O19kfS2SPuXZPdrUGcS99V3DG/EXhObJykgOQVeBwlmQU15w0yWH/AztHet Z+EY4NEYkMZgdw1o58xqEIDReka1WlhSXC99pYg7RnsuWYnB/4Ljwtj3YoJqc0+a CO6daY3GlLJhMmu9VDZSw/tDdOjvZ1aw5WCYmlViKclhBZ0dozc0j7n1Ihpe2Uyb v1zPKNp4YRt8M/2ik9N0lw2Ga44XqIdKYQ2Ue5aO4rqiNf8y2soGLPgCinwbA/03 mWC/FhfYrVL7+th3Hl9bPkh3JGK5dH44PV9hLCB0J+1YGykM+ddvUj1R71lCTXyn gZ8B/XugVVHkm5BXdz0CAwEAAaOCAZswggGXMB8GA1UdIwQYMBaAFEJ5VBthzVUr PmPVPEhX9Z/7Rc5KMA4GA1UdDwEB/wQEAwIEsDAdBgNVHSUEFjAUBggrBgEFBQcD AQYIKwYBBQUHAwIwGgYDVR0RBBMwEYIPc3BhbS5jbGFya3UuZWR1MD0GA1UdHwQ2 MDQwMqAwoC6GLGh0dHA6Ly9ndHNzbC1jcmwuZ2VvdHJ1c3QuY29tL2NybHMvZ3Rz c2wuY3JsMB0GA1UdDgQWBBQmR+DuP3JuT7E+5U4yDzSgpDNZzDAMBgNVHRMBAf8E AjAAMG8GCCsGAQUFBwEBBGMwYTAqBggrBgEFBQcwAYYeaHR0cDovL2d0c3NsLW9j c3AuZ2VvdHJ1c3QuY29tMDMGCCsGAQUFBzAChidodHRwOi8vZ3Rzc2wtYWlhLmdl b3RydXN0LmNvbS9ndHNzbC5jcnQwTAYDVR0gBEUwQzBBBgpghkgBhvhFAQc2MDMw MQYIKwYBBQUHAgEWJWh0dHA6Ly93d3cuZ2VvdHJ1c3QuY29tL3Jlc291cmNlcy9j cHMwDQYJKoZIhvcNAQEFBQADggEBAI906WTQfLzcscvi13jOQAtXB5TR7ttbuuV1 NZ5v4HFEpdgXwnrILx0NR8BAluPUwBfgZXmTQz9UmhCqfZwKWdHAWdpc9XV3eI/v cVbZfqXpLrtwkma6gE0wgzKm8lC4wMCpkYIsJj3CP7mN2vxkwyb3QBGZ84EQzjEW NmsEr4uWVoUUTbelf3zTe+xrgkrdEY5izPyulqKIRoMMkK4ia8wkVzoiBn9iSP7h lczJhmarNSv9j6n9RogHUBAPPlsS+kZrxx7Z+ctq4LwXuOTJoUmR40bjMtzmXSnL 9tsXq8gzlzV9Hcq6Z3pvKLb9DGe2C9vRF1/XeSAsg3qinIgvGHA= -----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAzBE/Qk707X2R9LZI+5dk 92tQZxL31XcMb8ReE5snKSA5BV4HCWZBTXnDTJYf8DO0d61n4Rjg0RiQxmB3DWjn zGoQgNF6RrVaWFJcL32liDtGey5ZicH/guPC2PdigmpzT5oI7p1pjcaUsmEya71U NlLD+0N06O9nVrDlYJiaVWIpyWEFnR2jNzSPufUiGl7ZTJu/XM8o2nhhG3wz/aKT 03SXDYZrjheoh0phDZR7lo7iuqI1/zLaygYs+AKKfBsD/TeZYL8WF9itUvv62Hce X1s+SHckYrl0fjg9X2EsIHQn7VgbKQz5129SPVHvWUJNfKeBnwH9e6BVUeSbkFd3 PQIDAQAB -----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 161866 . . . . . . . . [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 2013-08-28 07:50:23 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2014-08-05 04:54:41 +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 'L/Sw9MhCSAUK2MmG3T2vXOxupevP0M/v' . . . . . . . . . . . . [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 2.5.4.8 (stateOrProvinceName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Massachusetts' . . . . . . . . . . . . [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 'Worcester' . . . . . . . . . . . . [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 'Clark 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 'ITS' . . . . . . . . . . . . [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 'spam.clarku.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 25761119077796541298450874347870802937634831150707608675413744170154664824117000065510861303977836474563044134696040239747958554755145004272956200483002457311744881450914863521131151753914502923575909530516124460901678131477911992668218791842020437092939696748755301003613144449895821355518282061686684937559035162206697375051244871712915134221659563089119090609693339632596312850828602879372014716216025516732313352796326246367907099249635252647494782582009616359204193924676914163065724787221604668611513355092295825109704156818981400132065907617580593577646480533350445360723674220195678579524466613114247379908413 . . . . . . . . . . . . . . . . . . . . [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 (19 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'spam.clarku.edu' . . . . . . . . . . . . . . . . [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) 2647e0ee3f726e4fb13ee54e320f34a0a43359cc . . . . . . . . . . . . . . . . [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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