office.yamuntu.com

Issued by R3

About this certificate

This digital certificate with serial number 03:d2:5a:37:7d:62:a9:15:35:1f:b6:59:c4:71:8c:f5:ad:55 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:
  • 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=office.yamuntu.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:d2:5a:37:7d:62:a9:15:35:1f:b6:59:c4:71:8c:f5:ad:55
Serial Number (int): 332916073487743568099090417590149521452373
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 43:46:3d:e6:ec:b9:32:7d:3e:89:ac:66:bd:34:a9:4c:23:d5:23:ad
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): c2:f7:d8:ba:1a:cb:1d:a2:1b:68:f5:03:24:ea:b4:d0:94:a0:9c:ec
Fingerprint (sha256): 29:04:74:74:1c:ca:2c:fb:22:b8:0b:e0:9c:a8:97:42:73:dc:35:aa:3b:ef:2f:75:97:4e:5a:96:88:5e:14:02

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

Revocation information

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

Check the revocation status for certificate office.yamuntu.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for office.yamuntu.com

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

office.yamuntu.com

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Certificate

The complete raw certificate details for office.yamuntu.com in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA3ETl6HPO2JWUB+TEp+vS
dnczvdB4FjTFjWLUwXyrOKuR+k0jtdAOPkMw9RVhSj6AtRLL7Wlxt0ujPpcmUt3D
lc/dTglcBEkVbdD6F9PETTGanGlT5OEOpfUU48RBM/r6uXU8gKYeK+WZhFT7Ljjr
DeDCX70wBod5Oux2iM4sMSwI8+MSCzW+JtpHJ7tbH8ILujglMIUMsjV8usE/C2un
aWp6ZYtbV+K6ujm2Y++mmwAb0cA4ooG9fJRaZQ6L3FI5gqAdejdDimAHFESOfxt3
OqDc9TjDehz0BWf4cbEWsttVMWO3Z/6hmmDQpeoK8DUj12NPJU5oIxFCpRHEhIfP
gwIDAQAB
-----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 332916073487743568099090417590149521452373
 . . . . . . . . [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 2024-02-17 08:38:26 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-05-17 08:38:25 +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 'office.yamuntu.com'
 . . . . . . . . [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 27806402001151437292182260283473580974484395134172406490954251699628571000339457385911304961742260871734268340653019877441174796429339613439115030087416364833381957579499988227445457117359607046762508498962846783920582419133143691515551288463616231588383115718766479059250376337796122908965375723797474180508665890805679859291411806044789117342898510248867224716010545366194833079229055642945655515187935865110480672652340609529019582368829593613439612850980501744891524259080374628131097630061008443599954886030319473780785319068076263738628068511732863779114418173793407404748418666626799372423323472348867795079043
 . . . . . . . . . . . . . . . . . . . . [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)
							43463de6ecb9327d3e89ac66bd34a94c23d523ad
 . . . . . . . . . . . . . . . . [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 (22 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'office.yamuntu.com'
 . . . . . . . . . . . . . . . . [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)
							00f100770048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018db66e6de5000004030048304602210090278a9498b63a4b9ceee994fdc1e84e698e5b0ef749e464b2bdc548f73f0474022100f92b27ae52df92f4b7035c54ecae6eef19b76952408d24e818620f84378a9671007600eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018db66e6fda0000040300473045022069878d756be44c096c9aa3c62b0bd590cf768d3c417b37c2df5d8c4f689a8d40022100b9cc8711440da65b7961893847dd36db573593f30db33c7b0a9983be96089bd9
 . . . . [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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