api.shiur.cloud

Issued by R3

About this certificate

This digital certificate with serial number 03:6b:12:0d:b4:11:82:62:2c:23:e9:5c:1b:7f:aa:26:d2:67 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=api.shiur.cloud

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:6b:12:0d:b4:11:82:62:2c:23:e9:5c:1b:7f:aa:26:d2:67
Serial Number (int): 297771068311825404123421064702711380234855
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 58:0a:9f:2e:38:7c:e0:37:9a:2e:3d:97:37:ce:b4:fe:5b:85:ee:20
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 1d:a3:32:92:56:fd:15:e2:f2:d5:70:8d:bb:02:58:0f:09:9f:b3:c3
Fingerprint (sha256): 03:b5:36:32:21:a6:c6:1e:86:2c:41:fb:b4:94:b5:cf:fa:33:1b:79:f4:e4:fd:f7:78:d0:f6:79:d4:cc:fa:6d

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

Revocation information

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

Check the revocation status for certificate api.shiur.cloud

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for api.shiur.cloud

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

api.shiur.cloud

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Certificate

The complete raw certificate details for api.shiur.cloud in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAp+/jgsdk6Pqwku+Tu4oQ
jIBXWpJ87IrOioAmJZy5NmxjVKz/XpIO62p3YE4Raw5CEM2o9OtnZqO+vPNCuXy1
oW/cSGnN1I9WUgDRqaSRD4TQZoYcy/b5ndwFxBsJRMDNEU41ciJ+Ea9BMlPKdJsY
MPlbP5gdnOwI+rMKTc4G4KyfB4zZj1Q4JNoMBd8MIQxi11lAXYz4LxT738bTQ2p+
xWY2Xc1sAawSyGdEz8jN006d7ruO70KqP9tKu0sCH3wz0JFU1zFhnpcNhXmQRFZe
IkYHUR4K+vu9sTFzu7989vLAJj8lCUWHCASeKZKA9l7vJLG3+jMz0XFOEMqjZRVA
twIDAQAB
-----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 297771068311825404123421064702711380234855
 . . . . . . . . [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 2023-11-24 04:33:15 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-02-22 04:33:14 +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 'api.shiur.cloud'
 . . . . . . . . [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 21200090463202359423698634672180425395366242854753694267168452736583188034290295802891550546932566896081252699010745481380900789248804643803932074771589871483469206734548702070157466799096446823052033338280628494294796879643217387260126631371582633974030140033359946846277036067639517861428262642555898412720660781546766833855022254753889986257624194863866175372215106085811793243865533549415045789634418175443256513379963851626999728095166578674310401501537455771820300563546675281011053184441105311066129715995841025244770858126064282285001280666892466542491143554615355053738496167744971864203027140241015312826551
 . . . . . . . . . . . . . . . . . . . . [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)
							580a9f2e387ce0379a2e3d9737ceb4fe5b85ee20
 . . . . . . . . . . . . . . . . [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 (19 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'api.shiur.cloud'
 . . . . . . . . . . . . . . . . [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)
							00f100770048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018bffd165c40000040300483046022100a8e8dbd855b006260541503e1b1a04d06b3fbf79a8c2f84a6a2e12e1515c101d022100d495ae81c10af26bf52cf516798900adac98cd04466c6b42c8940290185b3007007600eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018bffd165cb00000403004730450221009da1fe8f166d05abf19a89f4f92e8c522c32ee96bf518f10ca5093fc65d6d01302206375ae400e06f79b27e62286870edab00033da8ee1bdaca928bb072fe6180778
 . . . . [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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