iot.sobczyk.eu
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:ef:79:f0:1e:ca:31:50:a5:76:01:98:40:4d:d7:aa:e6:31 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=iot.sobczyk.eu
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:ef:79:f0:1e:ca:31:50:a5:76:01:98:40:4d:d7:aa:e6:31Serial Number (int): 342826426852612695085216062034901191026225
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 2e:7f:f7:15:b3:e4:5b:ab:8d:56:32:c0:b9:e1:ec:10:c2:65:c4:73
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 17:32:b4:30:4b:fb:1a:4c:12:7f:8c:9e:58:a6:82:b7:bb:3f:9c:cd
Fingerprint (sha256): 1b:58:2e:45:5d:c5:c8:a7:05:64:f9:54:b9:4b:68:31:57:f5:10:09:6f:68:0e:6b:8e:46:5a:3e:65:ee:ae:c7
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate iot.sobczyk.eu
2
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for iot.sobczyk.eu
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
iot.sobczyk.eu
www.iot.sobczyk.eu
www.iot.sobczyk.eu
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Certificate
The complete raw certificate details for iot.sobczyk.eu in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFaTCCBFGgAwIBAgISA+958B7KMVCldgGYQE3XquYxMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTA3MDEwNDE1MjlaFw0x OTA5MjkwNDE1MjlaMBkxFzAVBgNVBAMTDmlvdC5zb2JjenlrLmV1MIIBIjANBgkq hkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAuAuqLwu7ZoomfCz45mc/escDHu6ONb/c +H/MEUvTqcomiuhpVaxgeZgLfjqThafPIIQanhO2U+cC8tRheZHemGnxXfCk0lGt K3TmIbfLQ5tCebacYPn7FG6nnRTyUYt6BKf6l+96tX5VEM2EppDthb/3Nu+CDrLZ zmucgnPfAUvB9gXolhxmBUC7zW9VSTCwHrYy+tFUQ5XLtX6cQsF3iULt0aRsOiYd TCeKDB0z/5HLMO7pIWbyFpp3rmHt11SiatfvGUyFAuBsVUt4g+SPHtAtfBd2udjL DJNqLsEgjuplaNA4ff8MffGHIIQMSL3k82XeAoZCdKHloFmtq7pZbQIDAQABo4IC eDCCAnQwDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQGCCsGAQUFBwMBBggrBgEF BQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBQuf/cVs+Rbq41WMsC54ewQwmXE czAfBgNVHSMEGDAWgBSoSmpjBH3duubRObemRWXv86jsoTBvBggrBgEFBQcBAQRj MGEwLgYIKwYBBQUHMAGGImh0dHA6Ly9vY3NwLmludC14My5sZXRzZW5jcnlwdC5v cmcwLwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0LmludC14My5sZXRzZW5jcnlwdC5v cmcvMC0GA1UdEQQmMCSCDmlvdC5zb2JjenlrLmV1ghJ3d3cuaW90LnNvYmN6eWsu ZXUwTAYDVR0gBEUwQzAIBgZngQwBAgEwNwYLKwYBBAGC3xMBAQEwKDAmBggrBgEF BQcCARYaaHR0cDovL2Nwcy5sZXRzZW5jcnlwdC5vcmcwggEFBgorBgEEAdZ5AgQC BIH2BIHzAPEAdgB0ftqDMa0zEJEhnM4lT0Jwwr/9XkIgCMY3NXnmEHvMVgAAAWur 9Z/xAAAEAwBHMEUCIFlsRuTUlXVt/bcJJsMBf9d183ZcoPEFfGb6I6QOsJuGAiEA sUEouq/Ffpa68RNaTKIWX/x2T3767PDQ9EMETmi2EpcAdwApPFGWVMg5ZbqqUPxY B9S3b79Yeily3KTDDPTlRUf0eAAAAWur9Z4bAAAEAwBIMEYCIQDeYdPXsReCB7k4 kZHDKm2WlNXdfU+GxU1jPjv28y959gIhANboyYnRPRdFa9eqBNVvKznXPDVaY9nc gjUovvMA2SuOMA0GCSqGSIb3DQEBCwUAA4IBAQAt8KRdyo5PYuWqCiHJ9UnAGlvn +wf9Rg5Cc21pMVCbWPPsG2hOfa40eACPqzeFFUT1k/nMyzS627pMW+f1kDICawC0 NFfdLurXfjOBotz4Ae7l9H43W0nRln2jisRgOM/atdCgT0VimIB9uXBQBH+hv4nY XhMzi2Q0lkglewa2H6rrgj6xBRLFBKWx5kvKmcWBGE/CbktAnKyRLbKdTsu5mjHh qhsEaB4DbSx6wjYDEyqW6drPtLzPpEbWl/Tu66kA7HAwU5osUoVaJHheRbX8QtNQ 07nvAoaHn7gXZgyTWL478ydbh+mlsstqyl2eKLsNe3vMHZKBvD/dirw9kN55 -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAuAuqLwu7ZoomfCz45mc/ escDHu6ONb/c+H/MEUvTqcomiuhpVaxgeZgLfjqThafPIIQanhO2U+cC8tRheZHe mGnxXfCk0lGtK3TmIbfLQ5tCebacYPn7FG6nnRTyUYt6BKf6l+96tX5VEM2EppDt hb/3Nu+CDrLZzmucgnPfAUvB9gXolhxmBUC7zW9VSTCwHrYy+tFUQ5XLtX6cQsF3 iULt0aRsOiYdTCeKDB0z/5HLMO7pIWbyFpp3rmHt11SiatfvGUyFAuBsVUt4g+SP HtAtfBd2udjLDJNqLsEgjuplaNA4ff8MffGHIIQMSL3k82XeAoZCdKHloFmtq7pZ bQIDAQAB -----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 342826426852612695085216062034901191026225 . . . . . . . . [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 2019-07-01 04:15:29 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-09-29 04:15:29 +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 'iot.sobczyk.eu' . . . . . . . . [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 23233600231335829106189714721632156081356105985504836891617786559853799989915572327148134045807488800157099837425593272590774580816688526308945868705053156132045192699354577721321049438706815089800417534752675164340561603790830117300770652038989096978859098940959732367729123756122985576000125677553267984722348686748669613923111733998789279795949658914003659630973011166352184797698243679225404826853041535681386898549506832772767518918099735530053842186759741077186457682548384376234197081533155126078083552937989399567797824049955535459223755059869864366843437856274334229945794087669817149506146756918922031290733 . . . . . . . . . . . . . . . . . . . . [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) 2e7ff715b3e45bab8d5632c0b9e1ec10c265c473 . . . . . . . . . . . . . . . . [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 (38 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'iot.sobczyk.eu' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.iot.sobczyk.eu' . . . . . . . . . . . . . . . . [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 (246 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes) 00f1007600747eda8331ad331091219cce254f4270c2bffd5e422008c6373579e6107bcc560000016babf59ff100000403004730450220596c46e4d495756dfdb70926c3017fd775f3765ca0f1057c66fa23a40eb09b86022100b14128baafc57e96baf1135a4ca2165ffc764f7efaecf0d0f443044e68b61297007700293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016babf59e1b0000040300483046022100de61d3d7b1178207b9389191c32a6d9694d5dd7d4f86c54d633e3bf6f32f79f6022100d6e8c989d13d17456bd7aa04d56f2b39d73c355a63d9dc823528bef300d92b8e . . . . [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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