cejph.szu.cz

Issued by R3

About this certificate

This digital certificate with serial number 03:59:20:99:cf:8e:0e:a8:8b:19:84:19:87:67:bb:d2:6c:86 was issued on by Let's Encrypt.

With 2 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=cejph.szu.cz

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:59:20:99:cf:8e:0e:a8:8b:19:84:19:87:67:bb:d2:6c:86
Serial Number (int): 291665322378242459904148261853810903903366
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 42:66:8e:23:d4:d1:f0:43:68:c4:c7:5c:af:8c:c7:c3:eb:ee:01:1a
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 51:dc:29:64:2c:7d:fc:28:05:83:a2:e4:78:d4:ca:0c:e0:06:6f:fc
Fingerprint (sha256): f8:6e:d9:3e:4a:d1:50:97:8c:4b:d8:c6:56:ec:1d:4c:a3:40:21:c1:5b:ad:9b:7e:fc:87:72:f7:39:49:25:03

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

Revocation information

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

Check the revocation status for certificate cejph.szu.cz

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for cejph.szu.cz

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

cejph.actavia.cz
cejph.szu.cz

Other certificates including the domain name szu.cz

(limited to 100 certificates)

Certificate

The complete raw certificate details for cejph.szu.cz 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 291665322378242459904148261853810903903366
 . . . . . . . . [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 2023-04-28 01:16:18 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-07-27 01:16:17 +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 'cejph.szu.cz'
 . . . . . . . . [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 728065787660635798200946013139967537011224998086219480151730350138869452875164024428366115743003721343597833042014070006904523142411119142526541249657728713358762159668778834961479289542074303518757971537640237455218662075193232903687255574883442041532804391886709264128868403530134428560472579115231205519948818051717952583829598134504240203696044253701063405986300957014968224052280854869753954546804708988156309783661059300350105733987474733117562547948186961684392716345233267475621993063323792669924613838711517431590144294344250829706721106712877156284531814471884629396151616370150282858785179005672319680976099743347741774518321009046042022827019589146102624400630900290925252855144724357140324236764215804341607782828361124864372624114502238760374983456049647103722976026540600537159652805360071938790014628543635743579165292160506648213306871226589435604644339556465522656084586779541865215569150225075072810204410362571087710579581656454483914879518633603501062123626448117248526025051613721953422396895468042732759171804797478577652036825420728774136981003157651765302479844922376961757644509572054270636640380295060375113062000564855321339779228772400546414183135416184212019690493667419080467569185606207277646003039679
 . . . . . . . . . . . . . . . . . . . . [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)
							42668e23d4d1f04368c4c75caf8cc7c3ebee011a
 . . . . . . . . . . . . . . . . [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 (34 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cejph.actavia.cz'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cejph.szu.cz'
 . . . . . . . . . . . . . . . . [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 (243 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (240 bytes)
							00ee007500b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb49900000187c5a59de400000403004630440220748e02846df4b284a094019855e7b2e292e25853e074567395e34b905fdd365b02201c553ff32116e04308f117a2550cb27c18f39a75dfbb8bd0031b13dd558f503b007500adf7befa7cff10c88b9d3d9c1e3e186ab467295dcfb10c24ca858634ebdc828a00000187c5a59e11000004030046304402202c88ecc3576a44836aaf655185eeee755eac512ac1e6a1631bc83d52874be0d8022060a585ebb78f600e80b7f205b20263af85699790bdb2aaa0a1d0fa5b9a527481
 . . . . [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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