www.icams.de

Issued by R3

About this certificate

This digital certificate with serial number 04:f7:92:8f:26:a6:47:a2:68:5f:d8:b8:39:a9:f6:b0:8d:e6 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:f7:92:8f:26:a6:47:a2:68:5f:d8:b8:39:a9:f6:b0:8d:e6
Serial Number (int): 432693698926253764950449582158438579867110
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 2d:7d:73:f4:04:05:f1:b4:0f:aa:83:72:b7:2c:53:a1:92:e4:22:ba
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): cf:a6:dc:21:ea:f4:9e:3b:a2:24:61:3f:b4:ce:7a:6c:87:76:ee:ad
Fingerprint (sha256): 03:80:a5:10:69:fc:2a:a4:90:4d:44:d3:a5:54:9b:52:25:5b:71:c0:99:c5:80:af:ff:87:69:8d:9f:e3:be:fa

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-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAsYUfOY0f07BMrTsFAR9c
ocTrtCqCOM4+jhVUr+a52FnaG0XJYBUe8TTp2CC/GjHRJS3KxuUVro0F1uj/+ggL
0xXfiQTgnG9eCT+OnvMEaUGs8UndLawE1nbjYDPpmesRv1hv1jYowrjjUL9TlH6o
uoMrib0LQ5C5vShb8/s61SUaUGLLJrdq7Ox3sTlISFHhnelYd3dZbDDBqdXGptpL
fkx0P/4AFZkGs0+cfyVx8k6tsS3Wc95lF35bW76R1EdnPnmT3afv4j6xr4zr1jJU
Icp2AJbDkXidk5VEJKB+nQ+JgKwwjVGYb/e3AmmYX5J3bbTy2ABHv9YBGgpKgKRP
lQIDAQAB
-----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 432693698926253764950449582158438579867110
 . . . . . . . . [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 2024-02-03 20:55:50 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-05-03 20:55:49 +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 22409824869961091610862960495475324281416394858541280850907845210168719468352828383988352752159047023895692157935273058012306896880721477820399695746432458049158221589149880577293617971865047085526702192696983411620851793111060988379603764346625212045172196880828214100031727429697466634583123215565284061183053642857368002585512591832143565651976717279574865432924722944357540810512411786628056308713779873477601684103867008079628384811365313252516022221152181770719604457393772735549008642765260799964642285439404924845670251183312030132119575365965631158269272172636215571268858310353193537460418105000368049246101
 . . . . . . . . . . . . . . . . . . . . [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)
							2d7d73f40405f1b40faa8372b72c53a192e422ba
 . . . . . . . . . . . . . . . . [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 (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef0076003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018d70f883bd000004030047304502206bfd0a5f62d40d55140c213e34825b364d2cfe94af6754cb0c4533cc90aeddb0022100a114096e4cee3d43d0062999b2878c5fe40ad1e4d5c2059045ff0484b368fd7700750048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018d70f883cb000004030046304402201df23ce356b2e75a65f2b58dbae18ce9304c48fb946fa1c37a77bad8e63d706c02200449b41d3dd27c23ea694e2a2619717fa61df5c12866ec676c385a17df84cce3
 . . . . [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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