www.icams.de

Issued by R3

About this certificate

This digital certificate with serial number 04:83:d6:cb:85:39:00:94:de:6a:b4:b5:c1:3e:87:68:45:74 was issued on by Let's Encrypt.

With 6 subject alternative names this certificate can be used to secure multiple fqdn's. This certificate is currently not expired, we haven't checked the revocation status of this certificate but you can do this simply on revocationcheck.com. 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:
  • DV certificate contains a subject common name, this is not recommended. If certificate policy 2.23.140.1.2.1 (CA/B BR domain validated) is included, only country and/or common name is allowed in SubjectDN. (BRs: 7.1.2.7.2)
  • Subscriber certificates use of Subject Key Identifier is NOT RECOMMENDED (BRs v2: 7.1.2.7.6)
  • Subscriber Certificate: commonName is NOT RECOMMENDED. (BRs: 7.1.2.7.1)

Certificate Subject

CN=www.icams.de

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate will expire on

Certificate Details

Serial Number (hex): 04:83:d6:cb:85:39:00:94:de:6a:b4:b5:c1:3e:87:68:45:74
Serial Number (int): 393311645323120842387347950173527757833588
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 56:54:22:aa:86:a1:31:8b:40:83:e9:a6:f8:d8:d1:7f:83:36:d0:12
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 0e:6c:de:f1:77:0b:d6:a9:cf:e4:00:82:18:8c:ac:54:f7:e7:4b:ab
Fingerprint (sha256): 3d:79:63:62:17:ac:46:ea:92:82:e5:55:4c:65:d4:96:42:ac:6a:f0:ad:29:80:23:84:2f:72:f2:e9:4c:1e:3e

Issuing Certificate URL: http://r3.i.lencr.org/

Revocation information

OCSP Server: http://r3.o.lencr.org

Check the revocation status for certificate www.icams.de

6

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.icams.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

icams.de
icams.rub.de
icams.ruhr-uni-bochum.de
www.icams.de
www.icams.rub.de
www.icams.ruhr-uni-bochum.de

Other certificates including the domain name icams.de

(limited to 100 certificates)
www.icams.de
www.icams.de
www.icams.de
www.icams.de
www.icams.de

Certificate

The complete raw certificate details for www.icams.de in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA4TQbUY/IYjeeJwkwzdpD
EaDet09SoqqhPcUtVgqKIwGQKeFDLLNdxc9f2pp74BjZTyfJhi8DP+Y5njGEH4vU
Qn8sI7BU02pNbIME8Y7wfVfvrc5NFaYj+lsrdaGhTnB8F9WHD5rxxi6q/SxKhtku
eP8v+a8+DSxl6HTwF3TthYiSqsjaTjs9nCXNbw15B/EM8sUkiN4ZH1sNiSKIhRal
Kkn51NEo5kiF9Ux9mo1tHpUaX9cFbjlFolusU5tMQP+Ev/1uXOLeSNciP/bjJbRw
fWPKCr+cfaOvyDfpgPYqYsvqcJToozM2uQXlchRgDMG7Z/JlLykwKiruuX/ei+EO
QQIDAQAB
-----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 393311645323120842387347950173527757833588
 . . . . . . . . [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 'R3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-04-04 07:28:56 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-07-03 07:28:55 +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 'www.icams.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 28429313395340050754158792351838922515697484562656203723967141035565380783990298825378924799327135735838450132525543962697732542109622703437235128170254608014107453906570747140906101438053788379400056036916904467465052603332269089992993819153369226514758773937964490937782979721412503762446398111724523794740128514810824356482791367828410001972462503713756241203792957342254792594394352132783009413999790387236139812527468053730700146225716575508871551679202528626154716562203992864035555893014803745330571917907848541179478594257754902520268609640930991376620992003400225483530769285564307946634901323938231314615873
 . . . . . . . . . . . . . . . . . . . . [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)
							565422aa86a1318b4083e9a6f8d8d17f8336d012
 . . . . . . . . . . . . . . . . [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 142eb317b75856cbae500940e61faf9d8b14c2c6
 . . . . . . . . . . . . . . . . [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 (73 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://r3.o.lencr.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://r3.i.lencr.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 (114 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'icams.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'icams.rub.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'icams.ruhr-uni-bochum.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.icams.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.icams.rub.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.icams.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 (12 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 1.3.6.1.4.1.11129.2.4.2
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (247 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (244 bytes)
							00f200770048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018ea839ae5a0000040300483046022100fac7ed49701a0f6ff298c038942d283e55337cf0f0701a5683c0c7d95b9f3a5f022100cb35830df3b87ad4388aa663a642e7efcf165fc24d185179c53587b314245e9f0077003f174b4fd7224758941d651c84be0d12ed90377f1f856aebc1bf2885ecf8646e0000018ea839ae5a00000403004830460221009b2899c685c04a23dc6b994e5659f657e2bd1a90ca2869c3f0683088e840bb6c022100c50c8ce733602de2744f78583ea34b8d8a289fc41e7916297e913e3be4e20c7b
 . . . . [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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