stubo.w.uni-due.de
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:f9:1d:52:91:cb:50:5a:35:3b:95:35:e7:d0:df:83:fe:39 was issued on by Let's Encrypt.
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=stubo.w.uni-due.de
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:f9:1d:52:91:cb:50:5a:35:3b:95:35:e7:d0:df:83:fe:39Serial Number (int): 346106143495872157133813603836529727503929
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: e1:f9:ef:c4:ec:67:55:6d:71:74:52:34:3d:d4:b4:88:7f:14:34:e1
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): d4:9e:d8:1f:5e:82:27:fa:24:b8:16:37:ba:9c:8b:34:df:d7:fe:dc
Fingerprint (sha256): 07:d5:0c:08:97:e4:4a:66:05:ba:70:56:ac:72:f1:78:77:88:4e:4a:23:26:ea:b9:00:72:99:8d:d7:de:35:6e
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate stubo.w.uni-due.de
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for stubo.w.uni-due.de
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
stubo.w.uni-due.de
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Certificate
The complete raw certificate details for stubo.w.uni-due.de in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFXTCCBEWgAwIBAgISA/kdUpHLUFo1O5U159Dfg/45MA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0yMDAyMjYyMjAxMDNaFw0y MDA1MjYyMjAxMDNaMB0xGzAZBgNVBAMTEnN0dWJvLncudW5pLWR1ZS5kZTCCASIw DQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAMF3odPJ3oBOJHGh97NHqdsvWBpr 6+49hufJBuAwbIz7pMFCjzcYRs6rp9GmML2ZHtVd7iZC+ESe+s7RGsbMZBu687+/ Top//B4faiLcwhiAh5Rd0zRLxpd++JIsZlvB2MdrjrqQTsv+u0gZxWZHjfbDRef5 d5BEIkvV54UZM3DTNqwTZOd4NoYKrCp7ZmJVQ4g6mKfSuJGrO/WFgqox5xBv/FUq Rq0Lv/8S/zzKJFy97+C3LYOkLzHOB69XZo/P9iK8dTnDLzTdLKWyGPU97qjk+uMS 0vnErK5LQdQ6WO6BndfB5U6RG1q719VPZKiHbo/HXEeRrBcZ9KXWyuRBNocCAwEA AaOCAmgwggJkMA4GA1UdDwEB/wQEAwIFoDAdBgNVHSUEFjAUBggrBgEFBQcDAQYI KwYBBQUHAwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4EFgQU4fnvxOxnVW1xdFI0PdS0 iH8UNOEwHwYDVR0jBBgwFoAUqEpqYwR93brm0Tm3pkVl7/Oo7KEwbwYIKwYBBQUH AQEEYzBhMC4GCCsGAQUFBzABhiJodHRwOi8vb2NzcC5pbnQteDMubGV0c2VuY3J5 cHQub3JnMC8GCCsGAQUFBzAChiNodHRwOi8vY2VydC5pbnQteDMubGV0c2VuY3J5 cHQub3JnLzAdBgNVHREEFjAUghJzdHViby53LnVuaS1kdWUuZGUwTAYDVR0gBEUw QzAIBgZngQwBAgEwNwYLKwYBBAGC3xMBAQEwKDAmBggrBgEFBQcCARYaaHR0cDov L2Nwcy5sZXRzZW5jcnlwdC5vcmcwggEFBgorBgEEAdZ5AgQCBIH2BIHzAPEAdwAH t1wb5X1o//Gwxh0jFce65ld8V5S3au68YToaadOiHAAAAXCDu24xAAAEAwBIMEYC IQDU2OMdU8ZoaiV+rgZ+Lv4bH/EkPZxQbEOtNQAY0vKBewIhAP2DTLf7tE6rvyRn uyQ6Phe42YR/l3d7Tf2wshK3DOrVAHYAb1N2rDHwMRnYmQCkURX/dxUcEdkCwQAp Bo2yCJo32RMAAAFwg7tunAAABAMARzBFAiBJHVs/wnpR4gwfJMFLHLrvl/LwdoNy NLPtlRROf/gPNQIhAJzt326lGZ6uw7LmIlqKS3NJ9ptQKysIc2vn8CPOFFDlMA0G CSqGSIb3DQEBCwUAA4IBAQBXNJaoaG2eqbS4V7PYZSJlhT2HerqFZr/QyD37ljzX bAGURFiR8caQV05nH1Kkk5VKnbGFRUFUK7wZJ9xe2N0XFMPp1hUIib0Ri7/e0Jei Lg7NfgC1EIXR3wQYnJCQDpmmWlCPwg2UvFQ7hgLpAuh6dyGfG2xnhXQbSdfh45p+ +/cLUTN6HcQ2CSqbS08e4POJaFZf9qmDd36EdzGtPnIPSLobGcorIftxGst5nNb0 rt8XiVrqwB9ADRfM7MNYTn8XaJJySYDzgPfmeAJ8hjw7AbhSbTSA3KHHRp0fK8p3 HGmXrViy17APxX/lNKeSsgw+noEauZRCZ3OKOL76onZV -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAwXeh08negE4kcaH3s0ep 2y9YGmvr7j2G58kG4DBsjPukwUKPNxhGzqun0aYwvZke1V3uJkL4RJ76ztEaxsxk G7rzv79Oin/8Hh9qItzCGICHlF3TNEvGl374kixmW8HYx2uOupBOy/67SBnFZkeN 9sNF5/l3kEQiS9XnhRkzcNM2rBNk53g2hgqsKntmYlVDiDqYp9K4kas79YWCqjHn EG/8VSpGrQu//xL/PMokXL3v4Lctg6QvMc4Hr1dmj8/2Irx1OcMvNN0spbIY9T3u qOT64xLS+cSsrktB1DpY7oGd18HlTpEbWrvX1U9kqIduj8dcR5GsFxn0pdbK5EE2 hwIDAQAB -----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 346106143495872157133813603836529727503929 . . . . . . . . [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 2020-02-26 22:01:03 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-05-26 22:01:03 +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 'stubo.w.uni-due.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 24422985664333295867077772290295267063130755284071837612118847525468000709061561054152014833764246765687810648720041593715567082236107186511274566481146020809071039899946960194562170741595095584647524968026302243196312239778695093679603466964484692293602495815894418178480205853817868283755807537464380889286978124461881675445296094348572527400965324141517192237896316967668070804898012558958526362507803089515373197180576287340351776063891192916161389338973941444469213317623515736106381950534627032665284837421113908098428538708311220757398390593525765696248888083914679953438512097272896281683783586056968666691207 . . . . . . . . . . . . . . . . . . . . [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) e1f9efc4ec67556d717452343dd4b4887f1434e1 . . . . . . . . . . . . . . . . [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 (22 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'stubo.w.uni-due.de' . . . . . . . . . . . . . . . . [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) 00f100770007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000017083bb6e310000040300483046022100d4d8e31d53c6686a257eae067e2efe1b1ff1243d9c506c43ad350018d2f2817b022100fd834cb7fbb44eabbf2467bb243a3e17b8d9847f97777b4dfdb0b212b70cead50076006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d9130000017083bb6e9c00000403004730450220491d5b3fc27a51e20c1f24c14b1cbaef97f2f076837234b3ed95144e7ff80f350221009ceddf6ea5199eaec3b2e6225a8a4b7349f69b502b2b08736be7f023ce1450e5 . . . . [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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