vykukator.techlib.cz

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:7d:3a:b0:fc:c8:4a:01:af:d7:5a:9a:ab:16:54:ad:49:fe 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=vykukator.techlib.cz

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:7d:3a:b0:fc:c8:4a:01:af:d7:5a:9a:ab:16:54:ad:49:fe
Serial Number (int): 303950167855436431676197693313307829422590
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 96:4d:a7:4e:5d:73:d8:20:6e:7c:7b:b9:94:bf:27:c9:b5:3d:13:06
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 45:47:9d:dc:c9:1c:c2:e3:39:62:1b:00:a3:76:f0:d8:80:55:53:b8
Fingerprint (sha256): 14:48:06:40:fb:e5:d6:47:ae:cc:11:34:ce:1e:b5:42:b6:14:7b:2a:fe:7f:9c:4b:de:4f:8d:b9:5f:63:6d:b5

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 vykukator.techlib.cz

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for vykukator.techlib.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

8 extensions
No unhandled critical extensions

CA Certificate

This is not a CA certificate

Subject Alternative Names

vykukator.techlib.cz

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Certificate

The complete raw certificate details for vykukator.techlib.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 303950167855436431676197693313307829422590
 . . . . . . . . [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 2016-11-07 09:11:00 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2017-02-05 09:11:00 +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 'vykukator.techlib.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 639551968354036632059722181146518193295930032584823067912225338238980589586766213610700452547525647795871469785511105118625124269819746482481725289934922651613235411822960636720607612045912751854101694740835267440292233680627911777238750356271865907481592903069611832223749266387725106359865856161704674454085188506595527154289167429634887679757940974673827546309714305501082168606697834338124576721126177484600307805473047843434426628610239030799972643838447955075168699966720183538185748797380310650101454785371153029458239853739711038385429958982200337635927766762661792934397688846724833850064538282244601708214808554883482859262125231832462852400876008209044037255406508000765965783687511460307820762318996990170517627196510682688103392692640181819218517593868785812986010039668823294906970229118023319620789910817572277131911052948813672191282503190116468643015980074210659378368760573878926569764883057221887932994512915812400030164266819393332015679040165083094302564057977364200392360607205416062851571199987314027357809254986922783711588488841836000527558547095857908424536457486998976051764524742977338747452562634800750980633809221305209309114713916996936666422164183550653750714525026264582275521135025276522871202545041
 . . . . . . . . . . . . . . . . . . . . [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)
							964da74e5d73d8206e7c7bb994bf27c9b53d1306
 . . . . . . . . . . . . . . . . [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 (100 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 (24 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'vykukator.techlib.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 (246 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 1.3.6.1.5.5.7.2.2 (unotice)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:12|false] UTF8String 'This Certificate may only be relied upon by Relying Parties and only in accordance with the Certificate Policy found at https://letsencrypt.org/repository/'
 . . . . [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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