staffmail.sp.edu.sg

Issued by GlobalSign Organization Validation CA - G2

About this certificate


This digital certificate with serial number 11:21:ea:28:cc:50:56:a0:de:db:18:7a:52:c7:d1:f2:ad:d0 was issued on by GlobalSign nv-sa .

With 5 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.

Singapore Polytechnic

Organization: Singapore Polytechnic
State / Province: Singapore
Locality: Singapore
Country: SG

GlobalSign nv-sa

Organization: GlobalSign nv-sa
State / Province: Singapore
Locality: Singapore
Country: SG

Time since certificate expired

This certificate has expire since

Certificate Details

Serial Number (hex): 11:21:ea:28:cc:50:56:a0:de:db:18:7a:52:c7:d1:f2:ad:d0
Serial Number (int): 1492449430135179796331726933131989311729104
Serial Number lenght: 141 bits, 18 octets

SubjectKeyId: 6a:65:be:7b:1c:ed:5d:ef:16:f6:f6:01:d9:0e:20:7b:a4:cc:11:a7
AuthorityKeyId: 5d:46:b2:8d:c4:4b:74:1c:bb:ed:f5:73:b6:3a:b7:38:8f:75:9e:7e

Fingerprint (sha1): d1:6b:81:14:19:11:c4:de:ca:82:5a:ac:d6:ff:73:c1:22:e2:20:f1
Fingerprint (sha256): 30:df:60:e5:db:ec:a4:41:79:3a:98:04:ca:7e:9e:c7:30:e6:fd:34:65:55:45:a4:9c:aa:ce:e7:43:bf:bd:c8

Issuing Certificate URL: http://secure.globalsign.com/cacert/gsorganizationvalg2.crt

Revocation information

OCSP Server: http://ocsp2.globalsign.com/gsorganizationvalg2
CRL Distribution Point: http://crl.globalsign.com/gs/gsorganizationvalg2.crl

Check the revocation status for the current certificate on staffmail.sp.edu.sg
5
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

staffmail.sp.edu.sg
autodiscover.sp.edu.sg
webmail.sp.edu.sg
autodiscover.spi.edu.sg
webmail.spi.edu.sg

Certificate

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

Certificate (PEM)

-----BEGIN CERTIFICATE----- MIIFfzCCBGegAwIBAgISESHqKMxQVqDe2xh6UsfR8q3QMA0GCSqGSIb3DQEBBQUA MF0xCzAJBgNVBAYTAkJFMRkwFwYDVQQKExBHbG9iYWxTaWduIG52LXNhMTMwMQYD VQQDEypHbG9iYWxTaWduIE9yZ2FuaXphdGlvbiBWYWxpZGF0aW9uIENBIC0gRzIw HhcNMTMxMDE3MDIzMTAyWhcNMTUxMDE4MDIzMTAyWjBzMQswCQYDVQQGEwJTRzES MBAGA1UECBMJU2luZ2Fwb3JlMRIwEAYDVQQHEwlTaW5nYXBvcmUxHjAcBgNVBAoT FVNpbmdhcG9yZSBQb2x5dGVjaG5pYzEcMBoGA1UEAxMTc3RhZmZtYWlsLnNwLmVk dS5zZzCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBANI+W8qu+VN0Lwpv 9qPEKSoQ14Ww30YdcNeRCNUWTZ3hzuZWiLlhAM9C7Cf2EMbro9BUQnrgZ3P3JyfU zm+F3jgNQQuDp5yCK6fXpWqqyDUARH6l9kX0CIh4pKXDRfb3elcPOud6AeYBtQST EXOT4kplVutXT/ogvna8QMAHqTs2Af3E4g5uAChH/dQ8XO2xw1DXOp+goEfos58g hjMDVQyNHYFRZPs8xLD182uhkS5vz2XQBRoDyLPCYI8AyDC+pRYSt/5QVumQ2Yjq mO0ppjD1igVrOJtEEY9uyPsgd6DiUYkKl3zLBfysjE1IdTKHL0Njv4kwnd/zAoDI ovEugqcCAwEAAaOCAiEwggIdMA4GA1UdDwEB/wQEAwIFoDBJBgNVHSAEQjBAMD4G BmeBDAECAjA0MDIGCCsGAQUFBwIBFiZodHRwczovL3d3dy5nbG9iYWxzaWduLmNv bS9yZXBvc2l0b3J5LzB2BgNVHREEbzBtghNzdGFmZm1haWwuc3AuZWR1LnNnghZh dXRvZGlzY292ZXIuc3AuZWR1LnNnghF3ZWJtYWlsLnNwLmVkdS5zZ4IXYXV0b2Rp c2NvdmVyLnNwaS5lZHUuc2eCEndlYm1haWwuc3BpLmVkdS5zZzAJBgNVHRMEAjAA MB0GA1UdJQQWMBQGCCsGAQUFBwMBBggrBgEFBQcDAjBFBgNVHR8EPjA8MDqgOKA2 hjRodHRwOi8vY3JsLmdsb2JhbHNpZ24uY29tL2dzL2dzb3JnYW5pemF0aW9udmFs ZzIuY3JsMIGWBggrBgEFBQcBAQSBiTCBhjBHBggrBgEFBQcwAoY7aHR0cDovL3Nl Y3VyZS5nbG9iYWxzaWduLmNvbS9jYWNlcnQvZ3Nvcmdhbml6YXRpb252YWxnMi5j cnQwOwYIKwYBBQUHMAGGL2h0dHA6Ly9vY3NwMi5nbG9iYWxzaWduLmNvbS9nc29y Z2FuaXphdGlvbnZhbGcyMB0GA1UdDgQWBBRqZb57HO1d7xb29gHZDiB7pMwRpzAf BgNVHSMEGDAWgBRdRrKNxEt0HLvt9XO2Orc4j3WefjANBgkqhkiG9w0BAQUFAAOC AQEATcLdMRFVJLbuSh+UrWz9e5sEJ/J4lSHUtwLbu6yZg13oQkY9d6EVZgEDj0nq rPXC4JpWVq7It1oAgySF+5L/n12t4lAOFWkjTaGzN27fZqxQitrgKQQ5dy3bIP6K q4ttUD1Oed/t1RzzVgdNtXn96AIeOXfVfr+spgNscJCM4VQfoQ6fyYH1S2C+p/Sx x1MDdBDrT3tZwWarjXkc1aG6rSsmWOb0OPnI8kwDIkfgUZH4TuNhqZY0/ImvmHbH ZQ87kJ2jmx9nj11JEM8iXSsatsvcSaGsZjojXhFTUtqeidkxB7x36wDHXdVxBwtN Z6RVS7BDL+4/bx8UP/3WUJy+iA== -----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0j5byq75U3QvCm/2o8Qp KhDXhbDfRh1w15EI1RZNneHO5laIuWEAz0LsJ/YQxuuj0FRCeuBnc/cnJ9TOb4Xe OA1BC4OnnIIrp9elaqrINQBEfqX2RfQIiHikpcNF9vd6Vw8653oB5gG1BJMRc5Pi SmVW61dP+iC+drxAwAepOzYB/cTiDm4AKEf91Dxc7bHDUNc6n6CgR+iznyCGMwNV DI0dgVFk+zzEsPXza6GRLm/PZdAFGgPIs8JgjwDIML6lFhK3/lBW6ZDZiOqY7Smm MPWKBWs4m0QRj27I+yB3oOJRiQqXfMsF/KyMTUh1MocvQ2O/iTCd3/MCgMii8S6C pwIDAQAB -----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 1492449430135179796331726933131989311729104 . . . . . . . . [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 Organization Validation CA - G2' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2013-10-17 02:31:02 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2015-10-18 02:31:02 +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 'SG' . . . . . . . . . . . . [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 'Singapore' . . . . . . . . . . . . [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 'Singapore' . . . . . . . . . . . . [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 'Singapore Polytechnic' . . . . . . . . . . . . [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 'staffmail.sp.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 26540794195599485511114319120425611567520574767987622611731993276839490621624511657743841756667835072480245554847311351961830067613350735004846122079675556563500758850291815443659009670304403805246033367836711688513423650315304431742005123823611833164560552220075867630462009050334800069065862310131323799310086739381569547179778476929219671207521647245953686521436779034860614786467220056782960853593850724348199502139840369310167724617663355513623026390108310977725392347052865495842211198467514047942716837389327549128777198350946268547335709512667182495861169663174799196563700874975948169690053540257300795523751 . . . . . . . . . . . . . . . . . . . . [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 2.23.140.1.2.2 (Organization 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 (111 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'staffmail.sp.edu.sg' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'autodiscover.sp.edu.sg' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'webmail.sp.edu.sg' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'autodiscover.spi.edu.sg' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'webmail.spi.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 (62 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/gsorganizationvalg2.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 (137 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/gsorganizationvalg2.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/gsorganizationvalg2' . . . . . . . . . . . . . . . . [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) 6a65be7b1ced5def16f6f601d90e207ba4cc11a7 . . . . . . . . . . . . . . . . [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 5d46b28dc44b741cbbedf573b63ab7388f759e7e . . . . [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) 004dc2dd31115524b6ee4a1f94ad6cfd7b9b0427f2789521d4b702dbbbac99835de842463d77a1156601038f49eaacf5c2e09a5656aec8b75a00832485fb92ff9f5dade2500e1569234da1b3376edf66ac508adae0290439772ddb20fe8aab8b6d503d4e79dfedd51cf356074db579fde8021e3977d57ebfaca6036c70908ce1541fa10e9fc981f54b60bea7f4b1c753037410eb4f7b59c166ab8d791cd5a1baad2b2658e6f438f9c8f24c032247e05191f84ee361a99634fc89af9876c7650f3b909da39b1f678f5d4910cf225d2b1ab6cbdc49a1ac663a235e115352da9e89d93107bc77eb00c75dd571070b4d67a4554bb0432fee3f6f1f143ffdd6509cbe88