kurs.a-rosa.de

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:eb:06:bc:8e:c3:da:30:08:7f:13:f7:11:97:c5:f7:4b:51 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=kurs.a-rosa.de

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:eb:06:bc:8e:c3:da:30:08:7f:13:f7:11:97:c5:f7:4b:51
Serial Number (int): 428424454368864820752742465088968696744785
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 64:b7:e8:80:59:5d:d3:4c:b6:8e:3b:3d:55:4c:bd:e7:57:29:de:89
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): c1:04:00:c5:ee:6c:7f:cb:45:42:94:d9:e8:2c:41:72:8a:7a:32:b1
Fingerprint (sha256): 81:f0:d6:49:8e:9f:52:9b:18:fb:a2:0d:4d:59:fd:7f:08:f7:e7:57:79:56:5c:19:28:74:fd:52:05:8a:95:fa

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 kurs.a-rosa.de

4

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for kurs.a-rosa.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

hr.a-rosa.de
kurs.a-rosa.de
www.hr.a-rosa.de
www.kurs.a-rosa.de

Other certificates including the domain name a-rosa.de

(limited to 100 certificates)

Certificate

The complete raw certificate details for kurs.a-rosa.de in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAt3r/8sMOdXWfa+LwDMP4
XjywDetx2t+cUcr4KAb/LVsAxv2iheSD3WIOx3HGHleBZUuZboDoAR6VLBtuDD6Z
fAJ4q3/4DNFeNK8vMmKCL41alabNAj+G5X6sAP2UlYm2t7PjZc9PeqiAF+w85Nyz
MLVwTZjazoRT6LSoRDhcygOWOIg9srrqEVQwCuttzhqUSCF7YYhejNvSm2j/z8Vu
rFKBI5WITDOhAQwacnRO9zfuDZUUyAF/hu1Aqp1Ydn2hI4ffphEdOJZl2FcnMuxi
y9oNYiUrDGeRkESW0zF1ms/kKUH96hDnABBuSr+G/4ZqZ/VSEfMLSIkL9ePIm42N
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 428424454368864820752742465088968696744785
 . . . . . . . . [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 2019-08-18 00:20:35 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-11-16 00:20:35 +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 'kurs.a-rosa.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 23162263269769566803104878845635280700190905712241775954480289562404213572680057344788455254972115310977870140364982862567750161593084346207919681139180131315121188702270069182683692508388152479247727087704404804994840855348408285948802916598254008427136624107228638217766334040394551302465284787432411665913815682384420941943802364536195076550314775590964699542280051910613108829711083708839244182946960651399902850561525026876647761538501564768238171955799232003322516923309527706910664281842521312869683732705367998165516297310195154183466121307904202100043314532148845590645695605392269741610807868671225945230623
 . . . . . . . . . . . . . . . . . . . . [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)
							64b7e880595dd34cb68e3b3d554cbde75729de89
 . . . . . . . . . . . . . . . . [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 (70 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'hr.a-rosa.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'kurs.a-rosa.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.hr.a-rosa.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.kurs.a-rosa.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)
							00ef00750063f2dbcde83bcc2ccf0b728427576b33a48d61778fbd75a638b1c768544bd88d0000016ca24fced80000040300463044022025af42d07fe43482485c48e27b43526f9efc6023f9ba4f4e53f399ef232e74580220640a99d8e6ef1ecb02963fa6e49d6ff1b6ed8d656246f930cd5af385f7c4d463007600e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe0000016ca24fd0da000004030047304502206e10d4097d625b2e629d6505d9231a196c8aff500435c6c8621abf55a35e5390022100cca1ab21e0126ea819d3a5c4c9dd6eef64d3ad8a67c213f12e9528a1eee4727d
 . . . . [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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