www.castor-informatique.fr
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:26:cc:e9:10:e7:ad:8f:85:4b:9c:55:08:8b:e3:74:c4:d9 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=www.castor-informatique.fr
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:26:cc:e9:10:e7:ad:8f:85:4b:9c:55:08:8b:e3:74:c4:d9Serial Number (int): 274539960397458536616172357138703996732633
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: ed:60:f1:1f:ae:e4:dd:5d:12:53:74:a1:c8:c4:56:2f:c3:5e:9d:5d
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 13:19:fa:54:5e:5e:2d:38:0d:60:ee:ab:c7:f5:87:cf:ff:8b:68:00
Fingerprint (sha256): 5e:ac:8c:be:a8:d4:2d:b9:28:b3:4d:d9:b7:64:9d:bf:06:a1:45:f9:98:fc:15:b5:59:9b:9b:ab:b9:6d:10:ce
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate www.castor-informatique.fr
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for www.castor-informatique.fr
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
www.castor-informatique.fr
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Certificate
The complete raw certificate details for www.castor-informatique.fr in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGbjCCBVagAwIBAgISAybM6RDnrY+FS5xVCIvjdMTZMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0yMDAxMDkwMzU3NDJaFw0y MDA0MDgwMzU3NDJaMCUxIzAhBgNVBAMTGnd3dy5jYXN0b3ItaW5mb3JtYXRpcXVl LmZyMIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEA7glNAjU2z+vu9rJK +dDSLUPkVqVXkF1AFyzcUqRRRlQOh5XXg9eS/L8eh5l3Y9xW/zHQXdcgUsPosaAV TvztpLYzgzm7wTQDyy4TbEjN12c2TSz7zvLjuXCFI7HSVacxVCI1oiyTA1u43eOJ xHm19G4i4Ip+Z/J0dMghT/7oyBvQSDVeBLV2oAKMUz8RLcIhtoWM6W5xVfVILUHc tiB8k3hJi6JCr+ZumM52d3sC2RJgut9VVr8CHc//FLXVMU9zubJqXdYe4okL+Z7D 4aul+F5NEj2HxBFvYvra5+P4sZL2kuIB+ZhkQ3IfrBlK/VwOPoq6QTINx2rgMlIG Fa/u7bh9e2MgNB6Hzf0aCuaNijpeUEcd7JQUnSaOoeBvqBQH/4gXt71Wx1tkw0AK NWS51q1XHnT2wuCD0awy9S21jyem3D28iAaKQ9XVe1gPwHSggAGWKWyogybxZQXQ OH4vXaa386fT6wpgqpP+Q0qmTtdbq/ZPOuoZKGrKqZVdWMAYjJDZe3r/845Zi+uS uqJQFBqdtumVINSfU83bhammZfacXObOUWKAA8Ua00J8+4IpMzCaf/i+/WGsYGcP YAqPVOYhs3JEcPMfVkL5h7LHib2y9iQPWgKHi1TwutTMA+ejFVZXXc7giXZ95taN RplkHtoG1wZNptQIfUkLprVTPO0CAwEAAaOCAnEwggJtMA4GA1UdDwEB/wQEAwIF oDAdBgNVHSUEFjAUBggrBgEFBQcDAQYIKwYBBQUHAwIwDAYDVR0TAQH/BAIwADAd BgNVHQ4EFgQU7WDxH67k3V0SU3ShyMRWL8NenV0wHwYDVR0jBBgwFoAUqEpqYwR9 3brm0Tm3pkVl7/Oo7KEwbwYIKwYBBQUHAQEEYzBhMC4GCCsGAQUFBzABhiJodHRw Oi8vb2NzcC5pbnQteDMubGV0c2VuY3J5cHQub3JnMC8GCCsGAQUFBzAChiNodHRw Oi8vY2VydC5pbnQteDMubGV0c2VuY3J5cHQub3JnLzAlBgNVHREEHjAcghp3d3cu Y2FzdG9yLWluZm9ybWF0aXF1ZS5mcjBMBgNVHSAERTBDMAgGBmeBDAECATA3Bgsr BgEEAYLfEwEBATAoMCYGCCsGAQUFBwIBFhpodHRwOi8vY3BzLmxldHNlbmNyeXB0 Lm9yZzCCAQYGCisGAQQB1nkCBAIEgfcEgfQA8gB3AG9Tdqwx8DEZ2JkApFEV/3cV HBHZAsEAKQaNsgiaN9kTAAABb4iqWXoAAAQDAEgwRgIhAOr8/wlr2+wwLvpujY1C AI/TjJsQhSTAxYmTJs4WskuaAiEAvruF4YnIUy3UV2Vr7trl+vOB5uQQC8ERVPKE i8gCU2cAdwAHt1wb5X1o//Gwxh0jFce65ld8V5S3au68YToaadOiHAAAAW+Iqllt AAAEAwBIMEYCIQDHzRRmvnaXZ04SEPU8/MvtNRhQTeoP6gj3m88CAsT9BgIhAONE 00x6ITiE4mENTL7s+FsUcrtTUBtT42ExA9B8dJokMA0GCSqGSIb3DQEBCwUAA4IB AQBcMtYqgr5cjk6iDwVSWM4qVShsI+dRldaILUwAaEMWJiQkAVZyILtLV2eXtuQR 3zE2+n3I6Irv7CvZj0mYZTWdUW8WOn7iB5xofwNQNpKErIYNzFfkbTFl+2J2EiUu 9ACGngt60237fsrdQ/0oOmXqUC5I1fkL7tsWEQu9ZKEX0tjxJTXqNRG/9Wp53WVo C+bLPmlyCHQn+EmywYux8106/4yk7+76qnT5nhQmdd0cOd1+G0+chPMfGKPewd3v Vro8Hx0Xe0cpqJ1maPxOdtbXzoLlqKV3y13qeU5mrUozIYw7CZQusAzw5Mr7/HmV 21mVm/+L4M2c3aOZQhlixLc7 -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEA7glNAjU2z+vu9rJK+dDS LUPkVqVXkF1AFyzcUqRRRlQOh5XXg9eS/L8eh5l3Y9xW/zHQXdcgUsPosaAVTvzt pLYzgzm7wTQDyy4TbEjN12c2TSz7zvLjuXCFI7HSVacxVCI1oiyTA1u43eOJxHm1 9G4i4Ip+Z/J0dMghT/7oyBvQSDVeBLV2oAKMUz8RLcIhtoWM6W5xVfVILUHctiB8 k3hJi6JCr+ZumM52d3sC2RJgut9VVr8CHc//FLXVMU9zubJqXdYe4okL+Z7D4aul +F5NEj2HxBFvYvra5+P4sZL2kuIB+ZhkQ3IfrBlK/VwOPoq6QTINx2rgMlIGFa/u 7bh9e2MgNB6Hzf0aCuaNijpeUEcd7JQUnSaOoeBvqBQH/4gXt71Wx1tkw0AKNWS5 1q1XHnT2wuCD0awy9S21jyem3D28iAaKQ9XVe1gPwHSggAGWKWyogybxZQXQOH4v Xaa386fT6wpgqpP+Q0qmTtdbq/ZPOuoZKGrKqZVdWMAYjJDZe3r/845Zi+uSuqJQ FBqdtumVINSfU83bhammZfacXObOUWKAA8Ua00J8+4IpMzCaf/i+/WGsYGcPYAqP VOYhs3JEcPMfVkL5h7LHib2y9iQPWgKHi1TwutTMA+ejFVZXXc7giXZ95taNRplk HtoG1wZNptQIfUkLprVTPO0CAwEAAQ== -----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 274539960397458536616172357138703996732633 . . . . . . . . [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 2020-01-09 03:57:42 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-04-08 03:57:42 +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 'www.castor-informatique.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 (4208 bits) . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 971103506995412174651076112452971851473410367417158666376403812273295373194809319005512992834730872849471335257752420912654157509765374209575378157984174293561031692312599725025962074685379277816323851997274307148520415167172813577224751708246735216548568832174221969698014263627022753314208182689554200396808785623742635572082431920923366622138600115738872051356845605242185589795670110745568063060935747173884268899762206462461570295594342650765299928404433297493597301238996524070317122155560604627731071133956513528839326518336901647415589259865691621245169156010608634841975087630787047257815099093495879054975725785505048120013607758332202252469290190856378990452890233250717000863070768616549350944222371977889199112875701344011731868449109474922966856813693159555089709534402010867331131395250040736901292574245189181073061592958845582479559958937959941350217599870422781677595060942903731137841053289818228398515090213281475081379716264328067971347050916015092198822887804833233818151118619946749005390614427252275501019895035877481030279996093523554661710241977858509948824989068828148266342398643474119459194779016186981740570506527346362696374662252496067517100201735569248899672594524003374152143751118129796665947929837 . . . . . . . . . . . . . . . . . . . . [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) ed60f11faee4dd5d125374a1c8c4562fc35e9d5d . . . . . . . . . . . . . . . . [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 (30 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.castor-informatique.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 (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 (247 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (244 bytes) 00f20077006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d9130000016f88aa597a0000040300483046022100eafcff096bdbec302efa6e8d8d42008fd38c9b108524c0c5899326ce16b24b9a022100bebb85e189c8532dd457656beedae5faf381e6e4100bc11154f2848bc802536700770007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000016f88aa596d0000040300483046022100c7cd1466be7697674e1210f53cfccbed3518504dea0fea08f79bcf0202c4fd06022100e344d34c7a213884e2610d4cbeecf85b1472bb53501b53e3613103d07c749a24 . . . . [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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