iot.sobczyk.eu
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:ad:ca:14:66:14:77:3f:09:a6:f3:9b:a7:05:e0:56:58:48 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:ad:ca:14:66:14:77:3f:09:a6:f3:9b:a7:05:e0:56:58:48Serial Number (int): 320474317244116065568746702678382746163272
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 00:56:d1:fa:0c:bc:ea:bb:1d:76:20:6b:51:92:41:03:5f:f1:a1:92
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 41:67:25:02:15:7c:a5:17:e2:05:69:4f:5d:67:03:7c:2c:35:ea:69
Fingerprint (sha256): 77:c0:a9:f0:16:c4:99:85:c2:88:ac:e7:b1:b2:b6:95:12:fd:02:37:8a:21:6c:a8:ec:f1:1e:a4:c8:ad:a2:ad
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----- MIIFZzCCBE+gAwIBAgISA63KFGYUdz8JpvObpwXgVlhIMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTA5MDIwNDE1NTdaFw0x OTEyMDEwNDE1NTdaMBkxFzAVBgNVBAMTDmlvdC5zb2JjenlrLmV1MIIBIjANBgkq hkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAqB8QOQnsAlJneuRJPUjb+cCJz3QnN214 +r54y0RrcgRHmDMG4vh/V2HYRG+GM8JVDTLKF6KZjH+4Nc5XLmiBHeqLNg4MJjU+ 3JCzKVh5750/54mzW9qdro2UGbSz2Kyipxxgck5wGrkYkl89IqrJVcrlZcqY3oYF 0vsi38ODj6OsZc9j/xMb+G9Rn40OYAMAxRHqg38LT/sipzF95keVukta4Gt6LeTU hDY0/tX1jou0eX78VOyNYwe8wJOQcx31NaBGIIEns6p7ijPfR1fBxKcSzfZVQJPZ HEmO0vg7/htH02jzUY4Z7uR/NiRjIbax2kJYEbmc7YCEEGw9DWg3cQIDAQABo4IC djCCAnIwDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQGCCsGAQUFBwMBBggrBgEF BQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBQAVtH6DLzqux12IGtRkkEDX/Gh kjAfBgNVHSMEGDAWgBSoSmpjBH3duubRObemRWXv86jsoTBvBggrBgEFBQcBAQRj MGEwLgYIKwYBBQUHMAGGImh0dHA6Ly9vY3NwLmludC14My5sZXRzZW5jcnlwdC5v cmcwLwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0LmludC14My5sZXRzZW5jcnlwdC5v cmcvMC0GA1UdEQQmMCSCDmlvdC5zb2JjenlrLmV1ghJ3d3cuaW90LnNvYmN6eWsu ZXUwTAYDVR0gBEUwQzAIBgZngQwBAgEwNwYLKwYBBAGC3xMBAQEwKDAmBggrBgEF BQcCARYaaHR0cDovL2Nwcy5sZXRzZW5jcnlwdC5vcmcwggEDBgorBgEEAdZ5AgQC BIH0BIHxAO8AdQB0ftqDMa0zEJEhnM4lT0Jwwr/9XkIgCMY3NXnmEHvMVgAAAWzw ZrBwAAAEAwBGMEQCIDDoyqUtb0seRx/qh9b74se8nnGh1p9IqaU/WD7HQf32AiAK OE9GOcB1zyunXYikkNpIJY9PHF43uklw+vuHVJHBUAB2ACk8UZZUyDlluqpQ/FgH 1Ldvv1h6KXLcpMMM9OVFR/R4AAABbPBmslMAAAQDAEcwRQIhAOXQplDzf97uyxKu fzjztJip4GglrDQ21R2U9Nr/wNLaAiA5n/hjl2yWFz0MNAvHtTLs6V73Rj/yvHdQ 11mO471RhzANBgkqhkiG9w0BAQsFAAOCAQEAiON1IF2GfXdnLbl4Noiyf/12lsNg d4gdco3Q2YARw+ghjjkAYeIFt1XF7oiZ3+5qb8AROShpw8bNmPwVFKGL/9cfuU6G /3GeG5LV+z61eJLc1PthW6lNWdpfDxrb569Wo67VfN0ICw21pHvoYAVuyEVF+mmu RTqr3Y9PLRhPLw9jKojPLXF8a945/npT6q77y7onHrExUqa9cuCEjbt84njfd7H6 RciPKTNofq+YvBid+M6mVWKN7SgRwXeVlzCTanbOTZzZhNNHU/pnI3ZUju+pLybp grxEDsJs61LZDzZ2S8AqN+pLYib0BtomwjGoJo0XLuE5m5IWjL2bAXtKsg== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAqB8QOQnsAlJneuRJPUjb +cCJz3QnN214+r54y0RrcgRHmDMG4vh/V2HYRG+GM8JVDTLKF6KZjH+4Nc5XLmiB HeqLNg4MJjU+3JCzKVh5750/54mzW9qdro2UGbSz2Kyipxxgck5wGrkYkl89IqrJ VcrlZcqY3oYF0vsi38ODj6OsZc9j/xMb+G9Rn40OYAMAxRHqg38LT/sipzF95keV ukta4Gt6LeTUhDY0/tX1jou0eX78VOyNYwe8wJOQcx31NaBGIIEns6p7ijPfR1fB xKcSzfZVQJPZHEmO0vg7/htH02jzUY4Z7uR/NiRjIbax2kJYEbmc7YCEEGw9DWg3 cQIDAQAB -----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 320474317244116065568746702678382746163272 . . . . . . . . [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 2019-09-02 04:15:57 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-12-01 04:15:57 +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 21223353153120323293794895363608422169798132724613605463360918296819695503796670304228236173740047007876158183692178568845095095596046079294400646069398438786916203796281156811414734977203885636393945051747822587825890227426182523677029113864538027208446785686335954078213267766580900651877388112137320152297482592415838875968547678771811392636757088614403410899095675193604325978577498499597561434443415397598402532342200394928619746021375735149779515520511200548730970142501104410309046688088761486186298362190085537978242786612623546513260179928107157337616825706910841890240493879049341596902671142856053091743601 . . . . . . . . . . . . . . . . . . . . [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) 0056d1fa0cbceabb1d76206b519241035ff1a192 . . . . . . . . . . . . . . . . [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 (244 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes) 00ef007500747eda8331ad331091219cce254f4270c2bffd5e422008c6373579e6107bcc560000016cf066b0700000040300463044022030e8caa52d6f4b1e471fea87d6fbe2c7bc9e71a1d69f48a9a53f583ec741fdf602200a384f4639c075cf2ba75d88a490da48258f4f1c5e37ba4970fafb875491c150007600293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016cf066b2530000040300473045022100e5d0a650f37fdeeecb12ae7f38f3b498a9e06825ac3436d51d94f4daffc0d2da0220399ff863976c96173d0c340bc7b532ece95ef7463ff2bc7750d7598ee3bd5187 . . . . [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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