ct57.fr

Issued by R3

About this certificate

This digital certificate with serial number 04:b4:fa:eb:15:a3:1c:5d:0c:0e:95:45:98:68:bd:dd:e0:04 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:
  • DV certificate contains a subject common name, this is not recommended. If certificate policy 2.23.140.1.2.1 (CA/B BR domain validated) is included, only country and/or common name is allowed in SubjectDN. (BRs: 7.1.2.7.2)
  • Subscriber certificates use of Subject Key Identifier is NOT RECOMMENDED (BRs v2: 7.1.2.7.6)
  • Subscriber Certificate: commonName is NOT RECOMMENDED. (BRs: 7.1.2.7.1)

Certificate Subject

CN=ct57.fr

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:b4:fa:eb:15:a3:1c:5d:0c:0e:95:45:98:68:bd:dd:e0:04
Serial Number (int): 410033497400371464896445479914962211954692
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: b7:2d:2b:d1:54:00:f8:8c:c9:2a:8b:65:82:8d:1b:fb:ba:b4:f2:d0
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 10:cd:18:a9:7e:a0:f9:74:3a:60:8a:d7:f8:2c:96:a3:63:4e:d0:d3
Fingerprint (sha256): fd:f7:0e:9b:f6:5e:b4:63:bf:18:e8:cf:64:a6:63:fb:3b:9f:19:9f:bf:9a:9b:5e:5c:18:ec:81:bb:6b:9f:1e

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

Revocation information

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

Check the revocation status for certificate ct57.fr

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for ct57.fr

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

ct57.fr
www.ct57.fr

Other certificates including the domain name ct57.fr

(limited to 100 certificates)
dev.autosecuritas.fr
ct57.fr
ct57.fr
www.a3s-flux.autosecuritas.fr
ct57.fr
ctok57.fr
ct57.fr
autosecuritas-st-genest.fr
ct57.fr

Certificate

The complete raw certificate details for ct57.fr in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA1Wud7Q3Vz6BXxjYCaSOK
/ZlPoJRIPDLv3CSf0WHpE+baNWi6BvEuxkaBOKhjkNOPl+KeFD2RXWESGHZ7Lguf
pbehl6W43RCJpia1Q1ZmS8fs94sDCIe7bnYzVbb34JR+Z8p8nF02+uSr0dOaV+hu
2Aq5jF7r+33m/cu49wnGNdAHsx8yUGC1xlYmsULldCoHiXWwi80Irtwhh9a/sNFq
O+fdZQj9PmMm1pgSRnLe6vDaRWJeXO/1ICcrVDfoXCHTAuCdA3MZrhJTbF26C6x2
Iguh3CVtLFiDzHs+KIUZlYXtIpkaHnPKyFs6Vn7mYCU/iYHwVUZGkrffIHqi8utz
PQIDAQAB
-----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 410033497400371464896445479914962211954692
 . . . . . . . . [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 2023-11-08 10:05:13 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-02-06 10:05:12 +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 'ct57.fr'
 . . . . . . . . [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 26941826828241917261033307857656734715332324330858153940100731707003472239584249659782318835355304097799335129896851048369910855335815301109278774035717394179080345545219898681688998623176525870096574614012254074041752830878390847926898906688676032883206257102917634161083845911716571984286974296317765379983276114932122744834006979646997979055324336626226421336867586223326098517252122277369459056098339513060573753409000047906491845851677339603722229787782281377109293598006180226139623935488625219628705743598641289050930857402773412170186627602322591973436798620236379011397700253506279299393239280927516656366397
 . . . . . . . . . . . . . . . . . . . . [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)
							b72d2bd15400f88cc92a8b65828d1bfbbab4f2d0
 . . . . . . . . . . . . . . . . [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 (24 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'ct57.fr'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.ct57.fr'
 . . . . . . . . . . . . . . . . [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 (12 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 1.3.6.1.4.1.11129.2.4.2
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f10077003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018bae9b93c90000040300483046022100953f300f79dbb58c31bb7fae644d3102101c7856bfec84479a1cf64c83d67a24022100aafb326ef7439b0058faa7e6a902841508b38ea52d8bfec27f6b62dd4985725b007600eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018bae9b93ce000004030047304502210084de82629f5538ef6f8edf7e94e86012405d68b4c086f2e87e78c7617ae425270220085236ae88bc0d331ca4b0e18ac23098c67044a850a34be5cee5a3de0e0e0ac7
 . . . . [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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