learn.ciachef.edu

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:e6:b9:3b:cd:9f:4e:08:10:ba:5c:ec:e0:6c:21:cd:32:48 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:e6:b9:3b:cd:9f:4e:08:10:ba:5c:ec:e0:6c:21:cd:32:48
Serial Number (int): 426960305814107092343917787840951878496840
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: c0:43:08:ab:d6:7a:5f:5b:55:ef:8d:c6:b1:09:2c:cc:47:ce:c4:eb
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 30:0c:77:49:ee:47:82:05:a6:70:fc:57:bd:a9:81:b0:69:08:03:6a
Fingerprint (sha256): 49:83:86:cf:6d:0f:49:6b:e2:57:77:65:aa:b6:37:ec:84:92:88:4c:af:9c:5b:04:f1:6a:25:4e:d4:75:d1:60

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 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

4096

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)

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-----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-----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 426960305814107092343917787840951878496840
 . . . . . . . . [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 2019-01-02 13:09:11 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-04-02 13:09:11 +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 (4208 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 855486506418536197111030643747665388802847590710657361063515860425760238964222849096683104876308917714731257551170311259036012079467271018492424541897250164654509563170920804748946797242201413923031461253144423026034332556443873863815871315449757555956475740585045987366802514333540069423283542563162944541741523939389168376931221398763721379931571715219559727913206129597500363938637825991454129420168087879029385692608671602958544825566930995412849608035445652732225513740994795877553972587454346865275255622960115715637863132425231816451477217557183721910241446114936139448949344427469046487279500123092611064773490549085220199193584336608130292756626470315047654094896194159682081006182652971489772466957199408195279710647757516150236133233035683037314398245326558136389188782799131626465943808535190546817240329933903924795120068215046023321849740361653316863099218871815472921073059348699262058986833679076234560836379373394394589314590782936039028280427829537308353089190414691449921585723532549413060028543968679414903529175818137157056993319961824848376021395658984279513432007265543016689195743776141846435429622231948046023383346152407232737756335978537406718463905396830127709241398067535599065594585640520316404121488319
 . . . . . . . . . . . . . . . . . . . . [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)
							c04308abd67a5f5b55ef8dc6b1092ccc47cec4eb
 . . . . . . . . . . . . . . . . [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 (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)
							00f0007700e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe000001680ee58f090000040300483046022100f95817d48ab82f24726a050c4a816e651c02b720c3ec4e1845bf2a21b7c2a9eb022100d0e4468049bfebf78640a3d220b4fe483dbb79ba1f7a1986caf3ddf771705e5100750063f2dbcde83bcc2ccf0b728427576b33a48d61778fbd75a638b1c768544bd88d000001680ee59100000004030046304402201181eea077f7b0612a116bfef2d143c5b3d463daa2ee841ab19ec777b74d77ee02203ed5d8d63447f6a0bb1bbc188b7a3a689aadfd0a9646f0dcac4260c0ab656ee8
 . . . . [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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