ctf.onoc.eu

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:19:5d:db:71:f3:23:34:11:26:5e:61:f2:98:0a:3a:2b:28 was issued on by Let's Encrypt.

With 3 subject alternative names this certificate can be used to secure multiple fqdn's. 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)

Certificate Subject

CN=ctf.onoc.eu

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:19:5d:db:71:f3:23:34:11:26:5e:61:f2:98:0a:3a:2b:28
Serial Number (int): 269968674596099841453966132375319448529704
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: fe:00:c0:74:08:e9:d3:ca:db:d3:41:31:b3:81:84:86:a2:74:80:e3
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 5c:3d:69:e6:28:18:64:76:48:36:0d:4b:d5:eb:bd:dc:11:96:6d:30
Fingerprint (sha256): e8:d2:db:83:53:bc:3a:d0:e3:24:91:1f:a9:ff:6a:97:5a:a0:19:50:70:51:2a:1d:91:28:de:5c:ff:0c:d8:12

Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/

Revocation information

OCSP Server: http://ocsp.int-x3.letsencrypt.org

Check the revocation status for certificate ctf.onoc.eu

3

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for ctf.onoc.eu

Public Key Algorithm

RSA

Key Size

2048

Signature Algorithm

SHA256 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

ctf.onoc.eu
onoc.informatik.uni-bremen.de
pizza.onoc.eu

Other certificates including the domain name onoc.eu

(limited to 100 certificates)
pretix.460.kif.rocks
ctf.onoc.eu
onoc.eu
pizza.onoc.eu
pizza.onoc.eu
api.pizza.onoc.eu
pizza.onoc.eu
api.pizza.onoc.eu
api.pizza.onoc.eu
pretix.460.kif.rocks
onoc.eu
onoc.eu
pretix.460.kif.rocks
onoc.eu
api.pizza.onoc.eu
onoc.eu
onoc.eu
pizza.onoc.eu
onoc.eu
new.onoc.eu
pretix.460.kif.rocks
onoc.eu
pizza.onoc.eu
pretix.460.kif.rocks
onoc.eu
new.onoc.eu
onoc.eu
pizza.onoc.eu
api.pizza.onoc.eu
pretix.460.kif.rocks
pizza.onoc.eu
pretix.460.kif.rocks
pretix.460.kif.rocks
new.onoc.eu
api.pizza.onoc.eu
api.pizza.onoc.eu
onoc.eu
onoc.eu
ctf.onoc.eu
pretix.460.kif.rocks
onoc.eu
new.onoc.eu
new.onoc.eu
onoc.eu
api.pizza.onoc.eu
pizza.onoc.eu
pizza.onoc.eu
ctf.onoc.eu
api.pizza.onoc.eu
onoc.eu
api.pizza.onoc.eu
onoc.eu
new.onoc.eu
onoc.eu
onoc.eu

Certificate

The complete raw certificate details for ctf.onoc.eu in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA4yTE01DmAvWjlO1964xk
EHqSOp3paXHGtB2LTewu6MNLHxsgFArYMoJ9NME1l5VcNeSdPg7XtPFeWfNtkxUp
ECGmfDNDinM6DqU2OAYn5Hk5GfVS7o1dZ0NJuypX2/hJEvTqv+gxPHjsRWk+2Oaj
Pkm3ncBVCC9mdr/V7EWvlKmP2x5WEMFO46CisqZI6raRIFLPjl0NclEzcEOhCzm+
bBJRyv4TLbTFqDN0XauGIz4HnTNM+1onjdJ2qlx76iolUZ/baGsDai3S18Z+k8dS
LV7oTcnebSrX4hCXLzt9Q+QoFTeqFoxwBnom/BzeqfxNiK4M8r65PqI77/CxebHq
bQIDAQAB
-----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 269968674596099841453966132375319448529704
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11 (sha256WithRSAEncryption)
 . . . . . . . . . . . . [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 'Let's Encrypt'
 . . . . . . . . . . . . [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 'Let's Encrypt Authority X3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-11-05 17:22:54 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-02-03 17:22:54 +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 2.5.4.3 (commonName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'ctf.onoc.eu'
 . . . . . . . . [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 28674226622713835314237039749849298516093756095128446827183155552276604710808407895943078297150839913776584871242463026384142895824588787143520485582039125911131772068350400404442822779876713346345954621410839445918980535725122720159760639477638478241069765044071602474968761106357694703416494643352448561816215400433970085421293016093889680612647500125218577363129221028193026931376152746002448057790946221827169981623060069928706144130636438802950835059793536536132845562372544522356743206314337789256023786666733349526206732527166781967343364174100134211526677532280977315242566530224609459115156308714642377665133
 . . . . . . . . . . . . . . . . . . . . [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 2.5.29.37 (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 2.5.29.19 (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 2.5.29.14 (subjectKeyIdentifier)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (20 bytes)
							fe00c07408e9d3cadbd34131b3818486a27480e3
 . . . . . . . . . . . . . . . . [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 a84a6a63047dddbae6d139b7a64565eff3a8eca1
 . . . . . . . . . . . . . . . . [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://ocsp.int-x3.letsencrypt.org'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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://cert.int-x3.letsencrypt.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 (61 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'ctf.onoc.eu'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'onoc.informatik.uni-bremen.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'pizza.onoc.eu'
 . . . . . . . . . . . . . . . . [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 2.23.140.1.2.1 (Domain Validation Certificates Policy)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.44947.1.1.1
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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://cps.letsencrypt.org'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.11129.2.4.2
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f10076005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016e3cce2b510000040300473045022100c3151e89e7563d3f7901a0788011de93a04c833c3249646399a430db9f6411ac022005c74b7b7d259c4cde47499657079887e6ece7b21c9502e7d5c21a67535fdbf000770007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000016e3cce2ba60000040300483046022100d668e145d79cf1b0813408dbb771532665182158190e93267568eab4ed442b9d022100cc78f38bfca6627263a81f55152bca80c22625163d6d82f899951cb6509aeb59
 . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11 (sha256WithRSAEncryption)
 . . . . . . . . [c:0|t:5|false] NULL 
 . . . . [c:0|t:3|false] BIT STRING (2048 bits)
		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