yunjeong.net

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:77:13:f9:21:aa:7d:5c:eb:f7:01:12:be:91:58:9d:79:58 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=yunjeong.net

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:77:13:f9:21:aa:7d:5c:eb:f7:01:12:be:91:58:9d:79:58
Serial Number (int): 301857008355537208175323633874594109946200
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: a3:12:94:ea:44:76:0d:9f:28:1c:a5:bc:3a:c2:fa:2f:7b:8e:c3:a5
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): d3:24:ec:78:5f:2b:7f:97:a5:ad:a1:21:ea:6e:4a:2d:66:8f:92:2f
Fingerprint (sha256): 96:ae:8f:88:b4:a3:60:68:9d:41:4d:12:d2:5f:8b:9d:9a:7c:c4:55:17:c7:d9:91:80:00:25:0b:c3:83:a8:e4

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 yunjeong.net

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for yunjeong.net

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

*.yunjeong.net
yunjeong.net

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Certificate

The complete raw certificate details for yunjeong.net in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAzB7XLQLG5AXu1YWxabPa
6M5hn8ncL0s+gndlNImvhcNYCoJHOrGjODVUtuOoMnF2dyX7G2tx3Ql0QooSpXQK
IYeHzAFQkPK983+cdg+kwIKAbPpHc/yiQfDpLGLvw03B3ytuBcu6ZaNy4yXF1Yzi
PRh3Z7BRmouLegKtPpESH9FbM3MFBywuyWlFj3ml9PdTE84xi0ZCopa1DIjYhLIK
cy6AwrmVU426rGWgxqhrxae7vQlIlDn4ofJgd+6ve5W3Kj1Ft0piVb2vPKIrQxaW
jRE8Ix5Q9c29uZCqOq3IRRE/QUw8KMEZX407M3zbyw42Lpkonbsgs17zCKkhczUW
zQIDAQAB
-----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 301857008355537208175323633874594109946200
 . . . . . . . . [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 2019-12-09 00:47:46 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-03-08 00:47:46 +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 'yunjeong.net'
 . . . . . . . . [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 25767822245506731283892623671210641008358435120865445338955987015448523246692912559538220691298101404896189080640717647356502825188418997820893440988020917826981147598974510137286813922580266074262589601375085890054201752719342680159577227701350608988418455710692078308357737598863702242561333810592182136257001839680815625916452983617819911875716642142017864293188503262456213556086889903827403863772848422997559198723042480316995845143946978339614570791105160481524601708177203821253259439730206307245895864865012596825819843731775456741499447649736327692982240193009389753951244495673356146213392485801922082969293
 . . . . . . . . . . . . . . . . . . . . [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)
							a31294ea44760d9f281ca5bc3ac2fa2f7b8ec3a5
 . . . . . . . . . . . . . . . . [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 (32 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.yunjeong.net'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'yunjeong.net'
 . . . . . . . . . . . . . . . . [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 (243 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (240 bytes)
							00ee0075005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016ee85751d2000004030046304402200e4a3bdc6254a690df3ac29d9cc6b113699ac1a8bf295ed9c275abd29b0d2c55022018f20030df835ea211563bc4f4c640c9afac012903624f817f67de11bf87507c00750007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000016ee85752030000040300463044022022d0d2817da53b5d4069ab5ffb60eb2cb53de381066c129d1e4206167653732102206a243abf379830b5b99fb9bd15f8da1a0749fc3c5e5e422c6133684b17c591f5
 . . . . [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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