www.tele-task.de

Issued by Universitaet Potsdam CA - G01

About this certificate


This digital certificate with serial number 0f:8b:88:e5 was issued on by Universitaet Potsdam .

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: KeyUsage extension SHOULD be marked as critical when present
  • ERROR: localityName or stateOrProvinceName is required if organizationName is set
  • ERROR: stateOrProvinceName is required if organizationName is set
  • ERROR: Certificate doesn't contain any subjectAltName
  • ERROR: Certificate CN is not listed in subjectAltName

Universitaet Potsdam

Organization: Universitaet Potsdam
Organization unit: HPI
Organization unit: Internet-Technologien und -Systeme
Country: DE

Universitaet Potsdam

Organization: Universitaet Potsdam
Country: DE

Time since certificate expired

This certificate has expire since

Certificate Details

Serial Number (hex): 0f:8b:88:e5
Serial Number (int): 260802789
Serial Number lenght: 28 bits, 4 octets

SubjectKeyId: 44:b5:de:ad:60:1d:1b:13:7d:51:11:ff:78:dd:0d:96:b8:bd:0a:e2
AuthorityKeyId: 89:a0:f8:33:75:bf:36:b6:f4:1d:a1:0a:1c:57:0d:e7:7d:69:78:d5

Fingerprint (sha1): 88:5e:5d:4d:6e:8d:4e:0c:97:bd:f6:46:c1:1e:76:26:38:55:8e:56
Fingerprint (sha256): 83:c5:79:0d:7e:54:05:f0:ea:78:da:d0:a4:7a:a3:71:ab:07:ae:0d:c4:44:b4:b8:d2:e6:aa:57:46:0f:24:5a

Issuing Certificate URL: http://cdp1.pca.dfn.de/uni-potsdam-ca/pub/cacert/cacert.crt
Issuing Certificate URL: http://cdp2.pca.dfn.de/uni-potsdam-ca/pub/cacert/cacert.crt

Revocation information

CRL Distribution Point: http://cdp1.pca.dfn.de/uni-potsdam-ca/pub/crl/cacrl.crl
CRL Distribution Point: http://cdp2.pca.dfn.de/uni-potsdam-ca/pub/crl/cacrl.crl

Check the revocation status for the current certificate on www.tele-task.de
0
DNS Names
1
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
Content Commitment
Key Encipherment
Data Encipherment

Extended Key Usages

Server Authentication

Extensions

8 extensions
No unhandled critical extensions



CA Certificate

This is not a CA certificate

Subject Alternative Names

This certificate doesn't contain any subject alternative names (DNS Name). [email protected]

Certificate

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

Certificate (PEM)

-----BEGIN CERTIFICATE----- MIIFWTCCBEGgAwIBAgIED4uI5TANBgkqhkiG9w0BAQUFADCBjzELMAkGA1UEBhMC REUxEDAOBgNVBAcTB1BvdHNkYW0xHTAbBgNVBAoTFFVuaXZlcnNpdGFldCBQb3Rz ZGFtMSYwJAYDVQQDEx1Vbml2ZXJzaXRhZXQgUG90c2RhbSBDQSAtIEcwMTEnMCUG CSqGSIb3DQEJARYYcGtpLWFkbWluQHVuaS1wb3RzZGFtLmRlMB4XDTEwMDIwNTEy MTMxMFoXDTE1MDIwNDEyMTMxMFowgYIxCzAJBgNVBAYTAkRFMR0wGwYDVQQKExRV bml2ZXJzaXRhZXQgUG90c2RhbTEMMAoGA1UECxMDSFBJMSswKQYDVQQLEyJJbnRl cm5ldC1UZWNobm9sb2dpZW4gdW5kIC1TeXN0ZW1lMRkwFwYDVQQDExB3d3cudGVs ZS10YXNrLmRlMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAxVj6I3lJ SF5DENPddfW/FkGBhFpjR80T0vTLVjQWsOITN6/SWDXeHfCOZSJ2220kUYUcAvI2 CZWIFHDUA7TcWAT3zrbmTRP9IE0nSoX7I3F+tEEXiBpe0o1HzTymv6k6dalBhgZT FqK+oFOC9TeH26YUdYMKiP0xvORDYKC1vvMFrGIDmHB7GOsWzeEXHH2RNiRmhzjT jlQ1h/NU4Gga4GYTK/gbRq28nMWvbnDlaHNxsk4j4pHLxpGe7Sjpw1xXaWgaDYLA t9mpq3FB8ELYq5ZncKhuIimxFhuV94iDDTE0xHeikCgK0kMvFKD06lFqBsccl3nQ TvEkwd7xjLfJFQIDAQABo4IBxjCCAcIwCQYDVR0TBAIwADALBgNVHQ8EBAMCBPAw EwYDVR0lBAwwCgYIKwYBBQUHAwEwHQYDVR0OBBYEFES13q1gHRsTfVER/3jdDZa4 vQriMB8GA1UdIwQYMBaAFImg+DN1vza29B2hChxXDed9aXjVMCMGA1UdEQQcMBqB GGFkbWluQGhwaS51bmktcG90c2RhbS5kZTCBiAYDVR0fBIGAMH4wPaA7oDmGN2h0 dHA6Ly9jZHAxLnBjYS5kZm4uZGUvdW5pLXBvdHNkYW0tY2EvcHViL2NybC9jYWNy bC5jcmwwPaA7oDmGN2h0dHA6Ly9jZHAyLnBjYS5kZm4uZGUvdW5pLXBvdHNkYW0t Y2EvcHViL2NybC9jYWNybC5jcmwwgaIGCCsGAQUFBwEBBIGVMIGSMEcGCCsGAQUF BzAChjtodHRwOi8vY2RwMS5wY2EuZGZuLmRlL3VuaS1wb3RzZGFtLWNhL3B1Yi9j YWNlcnQvY2FjZXJ0LmNydDBHBggrBgEFBQcwAoY7aHR0cDovL2NkcDIucGNhLmRm bi5kZS91bmktcG90c2RhbS1jYS9wdWIvY2FjZXJ0L2NhY2VydC5jcnQwDQYJKoZI hvcNAQEFBQADggEBAFkh1EJRmDEYWZcuF6FHYVwikqUMjnZKFBTZZ/RupATrxJZF tc/I0+uHVdcf3TaWbMsWY9O4tjAcBbFrkflLIgtTiduwrSc9aSoRkY0OLB9o7VP7 CQAO96zqZusSMTOmj0JNWLbvj0W/0VNKEUAVDnKzb/x8yO4hAM0c8gkxVgQOYyXJ ogz94ueEnif8TCFnEA2t9S0fCm2fh+5n/c/dAp45X3HNtTz9z9JKRGj0hxzhcbmu SpS7YXTl6AY6Fe9e/hVABjVzGSIqK3e1jmSuFjKlTa3lx3HD/L81JYlbkm7hvIwK 21ciVrJWEbRPEb4ds2LhWOkdW1strN4qhR7/U5g= -----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAxVj6I3lJSF5DENPddfW/ FkGBhFpjR80T0vTLVjQWsOITN6/SWDXeHfCOZSJ2220kUYUcAvI2CZWIFHDUA7Tc WAT3zrbmTRP9IE0nSoX7I3F+tEEXiBpe0o1HzTymv6k6dalBhgZTFqK+oFOC9TeH 26YUdYMKiP0xvORDYKC1vvMFrGIDmHB7GOsWzeEXHH2RNiRmhzjTjlQ1h/NU4Gga 4GYTK/gbRq28nMWvbnDlaHNxsk4j4pHLxpGe7Sjpw1xXaWgaDYLAt9mpq3FB8ELY q5ZncKhuIimxFhuV94iDDTE0xHeikCgK0kMvFKD06lFqBsccl3nQTvEkwd7xjLfJ FQIDAQAB -----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 260802789 . . . . . . . . [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 'DE' . . . . . . . . . . . . [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 'Potsdam' . . . . . . . . . . . . [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 'Universitaet Potsdam' . . . . . . . . . . . . [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 'Universitaet Potsdam CA - G01' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.9.1 (emailAddress) . . . . . . . . . . . . . . . . . . . . [c:0|t:22|false] IA5String '[email protected]' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2010-02-05 12:13:10 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2015-02-04 12:13:10 +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 'DE' . . . . . . . . . . . . [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 'Universitaet Potsdam' . . . . . . . . . . . . [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 'HPI' . . . . . . . . . . . . [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 'Internet-Technologien und -Systeme' . . . . . . . . . . . . [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.tele-task.de' . . . . . . . . [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 24912822323480892208266405071971460183411704936935015219385885477913089983948282665331376917830489474156771666006202700223581037913848318672137731797848422152009740734963238572390149992641990675308290280163039132144153099232456181724775675216485776575098309800932367800527578045525746484139335603177263544011858211146467202638666608491390430518193082927649434132944964412078055534289230957842081919505254848149951791030992501784673129020594866924424500115436989012255794405547065196339810071557083280755459822637494825038435579204954571875029357803555440707012804489723754374865311265105332880065727842589085437249813 . . . . . . . . . . . . . . . . . . . . [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 2.5.29.19 (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 2.5.29.15 (keyUsage) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (4 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (4 bits) 04f0 . . . . . . . . . . . . . . . . [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 (12 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: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) 44b5dead601d1b137d5111ff78dd0d96b8bd0ae2 . . . . . . . . . . . . . . . . [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 89a0f83375bf36b6f41da10a1c570de77d6978d5 . . . . . . . . . . . . . . . . [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 (28 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:1|false] IA5String '[email protected]' . . . . . . . . . . . . . . . . [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 (128 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://cdp1.pca.dfn.de/uni-potsdam-ca/pub/crl/cacrl.crl' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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://cdp2.pca.dfn.de/uni-potsdam-ca/pub/crl/cacrl.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 (149 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://cdp1.pca.dfn.de/uni-potsdam-ca/pub/cacert/cacert.crt' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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://cdp2.pca.dfn.de/uni-potsdam-ca/pub/cacert/cacert.crt' . . . . [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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