liber-lag2012.techlib.cz

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:5b:45:22:18:44:d7:57:e2:d1:a2:b5:70:f6:db:9e:ca:e9 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=liber-lag2012.techlib.cz

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:5b:45:22:18:44:d7:57:e2:d1:a2:b5:70:f6:db:9e:ca:e9
Serial Number (int): 379506732878880727204422299845420732304105
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 8c:b5:fd:2f:b0:b2:f4:2c:ac:80:48:6e:60:92:0d:27:eb:8f:33:57
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 07:0f:cd:62:53:65:ca:ca:4c:e6:28:64:e1:38:05:92:fd:62:70:b4
Fingerprint (sha256): 2b:b8:0e:f2:c5:04:a8:d0:f4:08:30:92:f6:99:7b:87:a1:a9:55:78:35:75:17:f5:b4:6f:8f:1c:85:89:05:89

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 liber-lag2012.techlib.cz

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for liber-lag2012.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

liber-lag2012.techlib.cz

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Certificate

The complete raw certificate details for liber-lag2012.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 379506732878880727204422299845420732304105
 . . . . . . . . [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 2017-07-31 21:02:00 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2017-10-29 21:02:00 +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 'liber-lag2012.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 776599818163734477888812548043121169502897508879254831833395270546649462317391916640259795938231759605170823088776478096689535305034050445629274935180146286674890557815595178462528879255414819813222027476681941185485767710749954854685419249298160998597567915377856617945268831743131725437552168226798387157035562126023933765619053834245396100938271844311481313403988876762748342881073366500380461888984805976974356811229047949658071393091198113352178204433789146655507427677889149393704756938492769623279434808914858245232804793417234147450486723789964809457205330176415417385185877892616415565268980032484628173098037877350243289882047151842079084391834287146423652767570711346799937901429762450978677949830217175268741164553216805359413030202496425151317722100119605911736998139044606677483859007066821357365636342321664805570296673872945288360357540346291737053694158484141619805584368573129948383868802349381291906530163316554934876807641670171777347061420792468511983451598483537217919344562295138379720991628802955285463684159134879824272691565173390931229225575556972270605037335785926243411437873240253895799622846199086980625045888802869163346104017744208385483015400168285584649060174914050794846607705183091635110503084481
 . . . . . . . . . . . . . . . . . . . . [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)
							8cb5fd2fb0b2f42cac80486e60920d27eb8f3357
 . . . . . . . . . . . . . . . . [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 (28 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'liber-lag2012.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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