learn.ciachef.edu

Issued by R3

About this certificate

This digital certificate with serial number 04:29:fc:05:e0:99:51:3a:32:ad:bc:7c:99:d2:84:e6:8d:1e 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:
  • Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)

Certificate Subject

CN=learn.ciachef.edu

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:29:fc:05:e0:99:51:3a:32:ad:bc:7c:99:d2:84:e6:8d:1e
Serial Number (int): 362735716742628353788076736929500498398494
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: a5:44:35:dc:a9:1b:29:de:5f:b1:ce:5d:40:04:f0:72:63:32:dc:e5
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 60:30:86:f5:9d:5f:3b:00:14:ae:9b:52:3a:93:05:05:3a:4d:81:ec
Fingerprint (sha256): 9d:f1:1b:44:a3:54:3d:6d:c1:e4:a7:ad:77:0a:2e:59:a0:90:bf:62:a6:03:6e:9e:8b:bb:b3:14:19:c4:f4:fa

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

Revocation information

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

Check the revocation status for certificate learn.ciachef.edu

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for learn.ciachef.edu

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

learn.ciachef.edu

Other certificates including the domain name ciachef.edu

(limited to 100 certificates)
blog.ciachef.edu
info.ciachef.edu
info.ciachef.edu
blog.ciachef.edu
apply.ciachef.edu
info.ciachef.edu
blog.ciachef.edu
SECURE.CIACHEF.EDU
blog.ciachef.edu
info.ciachef.edu
catalog.ciachef.edu
learn.ciachef.edu
apply.ciachef.edu
SECURE.CIACHEF.EDU
*.ciachef.edu
learn.ciachef.edu
blog.ciachef.edu
learn.ciachef.edu
learn.ciachef.edu
blog.ciachef.edu
learn.ciachef.edu
learn.ciachef.edu
info.ciachef.edu
www.ciachef.edu
blog.ciachef.edu
*.ciachef.edu
catalog.ciachef.edu
www.ciachef.edu
blog.ciachef.edu
blog.ciachef.edu
info.ciachef.edu
apply.ciachef.edu
blog.ciachef.edu
catalog.ciachef.edu
info.ciachef.edu
*.ciachef.edu
blog.ciachef.edu
*.ciachef.edu
apply.ciachef.edu
blog.ciachef.edu
blog.ciachef.edu
learn.ciachef.edu
blog.ciachef.edu
info.ciachef.edu
www.ciachef.edu
*.ciachef.edu
blog.ciachef.edu
blog.ciachef.edu
*.ciachef.edu
info.ciachef.edu
blog.ciachef.edu
blog.ciachef.edu
blog.ciachef.edu
blog.ciachef.edu
blog.ciachef.edu
blog.ciachef.edu
*.ciachef.edu
blog.ciachef.edu
info.ciachef.edu
catalog.ciachef.edu
blog.ciachef.edu
apply.ciachef.edu
learn.ciachef.edu
blog.ciachef.edu

Certificate

The complete raw certificate details for learn.ciachef.edu in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0syxQ0JDROWTk9Cuhf/G
89SV9xQLytn6zpZh5GLU4etYI0BbkP4jrabWA4lgPQNzuemFQAAuY1etIJt2ojOK
4TdxjnaT64PDNgq2TxeVVcQ5WIFLG1VT8qbrR81o11l5YzHr9BIbC3rDHfyB3ZYE
F82AnVPKt81sEtYxNLW55kWiXI1Yr/O6vW0aMUC9wlZDryHcQAq5RKaOn0MlYBVS
c9jY//+4mIdDacCZfQjFpmTB9NhSTwVPLUers8DzVESpk5/u9EqdgrVOI9KCbrHl
bBV6KMkLd38fgTJ72tKv846a+SZ+H8n3zTTfSnqy8kokM6rt258yix8LDeBPfLXg
4QIDAQAB
-----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 362735716742628353788076736929500498398494
 . . . . . . . . [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 2023-05-01 05:01:49 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-07-30 05:01:48 +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 'learn.ciachef.edu'
 . . . . . . . . [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 26610981643352902363955671584596170071667745319667574724347587629621794829497126610196147856035413297972815445974040729673259725745679280969672189123912264427952628173471027728234111434174748424303642576638739694069084495270561457651398584029340061292677526717902597220593051778822645100285837038863188966870093171775584564701399967434754013162117147359553177459713014774359477371959944271049542208194941229709628741954920449505615852284530544217136341923513508737572837465182051996025978968292630493720858343091699960021473058749886601316166045072142481029610132395305942694306308210364836551928188321542517843943649
 . . . . . . . . . . . . . . . . . . . . [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)
							a54435dca91b29de5fb1ce5d4004f0726332dce5
 . . . . . . . . . . . . . . . . [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 (21 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'learn.ciachef.edu'
 . . . . . . . . . . . . . . . . [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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f00077007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb5200000187d5e72cf80000040300483046022100b8470f2c2b7775eeca4d1ac85d08d32d3645115a081dfc72042c3aca51e866ab02210081cd20cab27b5cfb6ea0ac16706b1614ffad57cda9d74b1074b0616c0190f61e007500b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb49900000187d5e72cf00000040300463044022027feaa8e64e23e3e491e3b725165ed2b723202559ceb165fee9a197977d29dc3022028c1f3dad9c15ab6e297ecc8e9ae44f95e42fdfd490da1c1fc649d10454c71ab
 . . . . [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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