ls-csc.ruhr-uni-bochum.de

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:1e:f9:cf:86:f4:6f:fb:d2:5f:11:34:d7:ed:2e:e4:32:34 was issued on by Let's Encrypt.

With 4 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=ls-csc.ruhr-uni-bochum.de

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:1e:f9:cf:86:f4:6f:fb:d2:5f:11:34:d7:ed:2e:e4:32:34
Serial Number (int): 271877384116518270418170960200447715193396
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 90:d8:19:01:80:76:7a:bc:78:5f:a7:17:76:24:c4:74:30:7e:20:ef
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 3a:10:d8:33:55:4e:32:51:bc:9e:92:c7:60:1a:48:1c:cf:30:3b:18
Fingerprint (sha256): 02:c9:25:1f:9f:ea:b2:43:b0:8a:5b:31:3c:8c:2d:97:a5:4a:d4:1e:1b:9e:3f:89:08:b4:48:22:0a:09:26:a7

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 ls-csc.ruhr-uni-bochum.de

4

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for ls-csc.ruhr-uni-bochum.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

ls-csc.rub.de
ls-csc.ruhr-uni-bochum.de
www.ls-csc.rub.de
www.ls-csc.ruhr-uni-bochum.de

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uni.ruhr-uni-bochum.de

Certificate

The complete raw certificate details for ls-csc.ruhr-uni-bochum.de in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAkvYUtTB/wmnwrk5P5e3R
G49RzdDs1FVBvVy3OljRqpb20EnFXfpAeIixKuACTCJqXUYY1xrR2KLIOcwWi1cL
3hwXv6F9b78Ypwh5mhInthw/dhH6DPF8sSyLX1nDPlPjMXB+ofYmrDND1hWR38rz
nd4GCWXcovRkV7HsTQrJL7gJJC8jJcSPbFQd9QG6+bl1L+6gj6KPhwjfFVuwmRly
bXeElWxuDRj3ur+uOm2+sL8Wmnm9w2rIKOZhs00i/2n8vJffLe0qWk5VxGtCiGeq
RvL/z7tQla0pyu0Tg8xDpGuelXo2nr7BmLzMCLdbUQiN7Wfa8/vsUAZSKH5XhrsC
WQIDAQAB
-----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 271877384116518270418170960200447715193396
 . . . . . . . . [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 2019-10-25 08:13:58 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-01-23 08:13:58 +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 'ls-csc.ruhr-uni-bochum.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 18552139534436181695212644980588226005508381222316194673862693260496674652459062632545118429919581607089400043265178034446708667733466302398159682727901322463325616813728315495814125034153816630288174494719213674765057569701724300286673976746338692445778625270140018658632423951569052991958795543026537140723346825579022220939995723175441260848649895505835235324612361647529275166018345764160760318224673728902903968939423061194245777385169052988688379053157122538101969702314372407165472194076133179711090319754523143350880800610589701352323565624077581389933547692785161996192014909490801589267452768152594295751257
 . . . . . . . . . . . . . . . . . . . . [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)
							90d8190180767abc785fa7177624c474307e20ef
 . . . . . . . . . . . . . . . . [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 (94 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'ls-csc.rub.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'ls-csc.ruhr-uni-bochum.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.ls-csc.rub.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.ls-csc.ruhr-uni-bochum.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 (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef0075005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016e0231a52900000403004630440220075201390abeeb265a5179c57eadbed25acdc3bd789cf292f303c49fc317bca0022023d9ab2c836cc0ed23127e07f948b2b1b0b4c655cd877c2a0d93e11f8ace3ff2007600b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016e0231a527000004030047304502203145024266fd10c3d9e3923491a95c23514d0fea457f46286c2829ea7aad220f022100a24539ae67c2b0043c0add0410ee18c04c8b3f38b22c43c910ba1c369ca5cda2
 . . . . [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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