groupware.zer0.de

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:54:41:33:b5:09:11:32:59:c9:c5:b0:1a:59:31:17:d8:9f 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=groupware.zer0.de

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:54:41:33:b5:09:11:32:59:c9:c5:b0:1a:59:31:17:d8:9f
Serial Number (int): 290007244915339889517794294865324758522015
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 68:da:75:f6:fa:93:a0:9d:c4:c3:97:9e:e7:ab:fc:9a:41:35:d2:9b
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 4d:26:24:1c:3b:6b:48:cd:d4:49:73:62:5d:ff:d7:c7:13:9b:f2:10
Fingerprint (sha256): 2b:d4:cd:81:29:02:a9:ea:d2:21:e3:ec:68:01:5f:a2:5b:d3:0a:4a:53:30:44:50:37:06:f6:33:c8:71:6e:cc

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 groupware.zer0.de

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for groupware.zer0.de

Public Key Algorithm

RSA

Key Size

4096

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

groupware.zer0.de

Other certificates including the domain name zer0.de

(limited to 100 certificates)

Certificate

The complete raw certificate details for groupware.zer0.de in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----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-----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 290007244915339889517794294865324758522015
 . . . . . . . . [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 2019-01-18 12:45:32 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-04-18 12:45:32 +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 'groupware.zer0.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 (4208 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 877914428448536932252206237339448423339596672551273668088632411660115941492308522707897543206797041942497457809358946277517195531328810819709397778772468875748189206095812442569753184275183078247793479663699964119229658147322261067295882241862920108696821003658617974734049301464118809191869706409928662219161213339114793542361401419488790069823509830435195935220902785536074486887370409695596359546756674436503484017367010095055853602663770962083954605171612996691942113644100188386722267642574707763244678982612343969681515861498089384868363374330623204799026576850215047170202558450021607556878079321985378265329368204242379287420814788215904942733833542698172363414826742330825141057310336203823125690172524159028487629137462825778120716877321199761335343124913051450759042774982132631554289251056220909440982954077603446994912006936139596302510705084728050736148966645487213983987234355116172824568100302044031469947960442909127007233737801721472715257806828709332101165955632912596438435852184791125670659671588028805932360288561310742984304971125086128885315247124472901098926954485483231627047511428184206255093136895298682707585784760858628050934002141993420303547203534900736202105496108541069165326886454789161032061860041
 . . . . . . . . . . . . . . . . . . . . [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)
							68da75f6fa93a09dc4c3979ee7abfc9a4135d29b
 . . . . . . . . . . . . . . . . [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 (21 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'groupware.zer0.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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f0007600e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe000001686135a71a00000403004730450220694955492d94c377390147218e848b7161fa4f85fc2eb943c408d8843b3f4113022100a5b3f623f417e3f9f3747398a185220376e7eb0c946d9854007902d9f1b232c800760063f2dbcde83bcc2ccf0b728427576b33a48d61778fbd75a638b1c768544bd88d000001686135a721000004030047304502200f16aa4c180120f56e81acddf1b39bdb4ac35b003138db0dc6dcc3d2b8926a99022100c46feb9a5bac96cf8719f4774fe839be4a737aa1c78daa782086c8662b21d4a5
 . . . . [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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