www.research.a-star.edu.sg

Issued by GlobalSign Domain Validation CA - G2

About this certificate


This digital certificate with serial number 11:21:c5:1b:e2:11:1d:d4:da:c6:54:63:dd:2a:e7:8b:ab:42 was issued on by GlobalSign nv-sa .

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.

www.research.a-star.edu.sg

Organization unit: Domain Control Validated
Country: JP

GlobalSign nv-sa

Organization: GlobalSign nv-sa
Country: JP

Time since certificate expired

This certificate has expire since

Certificate Details

Serial Number (hex): 11:21:c5:1b:e2:11:1d:d4:da:c6:54:63:dd:2a:e7:8b:ab:42
Serial Number (int): 1492400181640680652732918690301402189376322
Serial Number lenght: 141 bits, 18 octets

SubjectKeyId: fd:2d:ad:91:38:91:de:59:ea:df:a4:f8:52:ab:d7:04:ef:04:89:90
AuthorityKeyId: 96:ad:fa:b0:5b:b9:83:64:2a:76:c2:1c:8a:69:da:42:dc:fe:fd:28

Fingerprint (sha1): 78:ff:19:8d:c4:d7:05:fd:c1:1b:33:b9:c0:8c:51:d6:3a:fa:f1:89
Fingerprint (sha256): 83:f2:a6:e6:b8:a6:56:2e:00:a9:49:76:92:e9:93:ac:9b:48:5f:7c:47:3f:74:1b:5a:92:de:35:ce:d6:97:44

Issuing Certificate URL: http://secure.globalsign.com/cacert/gsdomainvalg2.crt

Revocation information

OCSP Server: http://ocsp2.globalsign.com/gsdomainvalg2
CRL Distribution Point: http://crl.globalsign.com/gs/gsdomainvalg2.crl

Check the revocation status for the current certificate on www.research.a-star.edu.sg
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

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.research.a-star.edu.sg
research.a-star.edu.sg

Certificate

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

Certificate (PEM)

-----BEGIN CERTIFICATE----- MIIFDjCCA/agAwIBAgISESHFG+IRHdTaxlRj3Srni6tCMA0GCSqGSIb3DQEBBQUA MFcxCzAJBgNVBAYTAkJFMRkwFwYDVQQKExBHbG9iYWxTaWduIG52LXNhMS0wKwYD VQQDEyRHbG9iYWxTaWduIERvbWFpbiBWYWxpZGF0aW9uIENBIC0gRzIwHhcNMTMw ODI4MDAyNTUxWhcNMTQwODI5MDAyNTUxWjBVMQswCQYDVQQGEwJKUDEhMB8GA1UE CxMYRG9tYWluIENvbnRyb2wgVmFsaWRhdGVkMSMwIQYDVQQDExp3d3cucmVzZWFy Y2guYS1zdGFyLmVkdS5zZzCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEB ANlvwLVoBK46fW2HlSYUqyfv9owN8kkp5yWVbb1SdGkrwCPX+cj0R7YJIKg9VKch 77zv9FFoJDsx+6558W2LzqsKww3ehpeuqrWQK3XIv1VyjZV7R5RgXDvagQg6GrnH Tpn0l0nSW3moEk6U+jV+y3fnrzJlDx5zVin2o7nuOQod/0eloNFvYRSVfq/KoDiB eHsLl8fma/2a8RusaagFuH7HrWnho5U4a5Gl6uayI7NBZtZPt64Bv6dK8iRPeKBx 0jN1V2NDIqqF4YwCKKBdJquz9RXaUFWXFgZri5ZL3kvibw4AIB+JFlh3yYNTpcK8 zs6uz5udZuUujkuTJKoR3fMCAwEAAaOCAdQwggHQMA4GA1UdDwEB/wQEAwIFoDBJ BgNVHSAEQjBAMD4GBmeBDAECATA0MDIGCCsGAQUFBwIBFiZodHRwczovL3d3dy5n bG9iYWxzaWduLmNvbS9yZXBvc2l0b3J5LzA9BgNVHREENjA0ghp3d3cucmVzZWFy Y2guYS1zdGFyLmVkdS5zZ4IWcmVzZWFyY2guYS1zdGFyLmVkdS5zZzAJBgNVHRME AjAAMB0GA1UdJQQWMBQGCCsGAQUFBwMBBggrBgEFBQcDAjA/BgNVHR8EODA2MDSg MqAwhi5odHRwOi8vY3JsLmdsb2JhbHNpZ24uY29tL2dzL2dzZG9tYWludmFsZzIu Y3JsMIGIBggrBgEFBQcBAQR8MHowQQYIKwYBBQUHMAKGNWh0dHA6Ly9zZWN1cmUu Z2xvYmFsc2lnbi5jb20vY2FjZXJ0L2dzZG9tYWludmFsZzIuY3J0MDUGCCsGAQUF BzABhilodHRwOi8vb2NzcDIuZ2xvYmFsc2lnbi5jb20vZ3Nkb21haW52YWxnMjAd BgNVHQ4EFgQU/S2tkTiR3lnq36T4UqvXBO8EiZAwHwYDVR0jBBgwFoAUlq36sFu5 g2QqdsIcimnaQtz+/SgwDQYJKoZIhvcNAQEFBQADggEBABoV0t/JBNMQl9whkcA8 ayAxNJ9lOJFlSWJFhjcsgoO1+6En2cR3fALYZ/TlAVu2FcsWnzikRFaGxqyVMk4D 7ncqCVMOShgeoGa8SJ2dmIEV5H9xDvHZCbme9lV6/H2+HQN4IzK1zyisv75/cBzv coHDXfg2dgfdzjnF5t112E4/dBy/R5XomDODE50TOGlBr9NmsWoSgUyp5kOlqVHk X0yV343Vq23QER7YDA3Sv+fFiDIVH3IG7SOLGW6kqnv+okshlpoRJSVcKwH6kKW0 uHsxM3FlGPt7bLr1FXSU2Dk/ULODKiKZTATj42XIoPc1Lc7wUvwtgFuKiO7i2EAf wTk= -----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA2W/AtWgErjp9bYeVJhSr J+/2jA3ySSnnJZVtvVJ0aSvAI9f5yPRHtgkgqD1UpyHvvO/0UWgkOzH7rnnxbYvO qwrDDd6Gl66qtZArdci/VXKNlXtHlGBcO9qBCDoaucdOmfSXSdJbeagSTpT6NX7L d+evMmUPHnNWKfajue45Ch3/R6Wg0W9hFJV+r8qgOIF4ewuXx+Zr/ZrxG6xpqAW4 fsetaeGjlThrkaXq5rIjs0Fm1k+3rgG/p0ryJE94oHHSM3VXY0MiqoXhjAIooF0m q7P1FdpQVZcWBmuLlkveS+JvDgAgH4kWWHfJg1OlwrzOzq7Pm51m5S6OS5MkqhHd 8wIDAQAB -----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 1492400181640680652732918690301402189376322 . . . . . . . . [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 'GlobalSign nv-sa' . . . . . . . . . . . . [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 'GlobalSign Domain Validation CA - G2' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2013-08-28 00:25:51 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2014-08-29 00:25:51 +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 'JP' . . . . . . . . . . . . [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 'Domain Control Validated' . . . . . . . . . . . . [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.research.a-star.edu.sg' . . . . . . . . [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 27448819521434466561152392890743751884417535265666632700327559977875462610760215393094651440530690733617193293203099690830096477341542614981336880983468947203818419618665193691574909685003154129355044388601451310540822175753559505394436349082271647874396471756436091633094095359303214894756693863113772138153148406632799761143982451353618731200283593262916325064220063522926478804581372121625709721503385755261151169939295020887856808811637575798420189109369664996951948361354696754010818609445410119962342916112528022038691958207527189617491353012361127959832152370711696914659629624580892604239289007684283272388083 . . . . . . . . . . . . . . . . . . . . [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 2.5.29.15 (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 2.5.29.32 (certificatePolicies) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (66 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.23.140.1.2.1 (Domain Validation Certificates Policy) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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 'https://www.globalsign.com/repository/' . . . . . . . . . . . . . . . . [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 (54 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.research.a-star.edu.sg' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'research.a-star.edu.sg' . . . . . . . . . . . . . . . . [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 2.5.29.37 (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 2.5.29.31 (cRLDistributionPoints) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (56 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.com/gs/gsdomainvalg2.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 (124 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.com/cacert/gsdomainvalg2.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://ocsp2.globalsign.com/gsdomainvalg2' . . . . . . . . . . . . . . . . [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) fd2dad913891de59eadfa4f852abd704ef048990 . . . . . . . . . . . . . . . . [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 96adfab05bb983642a76c21c8a69da42dcfefd28 . . . . [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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