learn.ciachef.edu

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:62:8e:dd:7b:5a:b0:54:b2:fd:85:6a:69:dc:ac:bd:be:94 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): 03:62:8e:dd:7b:5a:b0:54:b2:fd:85:6a:69:dc:ac:bd:be:94
Serial Number (int): 294874430128461391242335186582233390366356
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 46:6d:2c:ad:0f:f7:68:2b:0e:31:43:d6:6f:d0:d9:3e:cd:fd:bc:a5
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): f4:b0:a9:39:2d:fa:60:c7:81:b7:b1:27:c8:91:22:78:27:f8:99:2d
Fingerprint (sha256): 39:94:ff:f3:f6:dd:f0:2f:81:c7:44:4b:2a:4e:3e:09:dc:dc:b2:66:53:7d:e8:81:67:7f:f3:60:96:00:d8:3d

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 294874430128461391242335186582233390366356
 . . . . . . . . [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 2019-12-01 08:11:49 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-02-29 08:11:49 +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 958788776252472345312241433291528750184929001532664607164218876384504415019895728852368153739165965323219163645785895016433752875954664563967623465453198624880003150025063826748435007228704967907667040772555032072500268081487194957202424133616210941124024621066423734865944680912688207184768095922556098197475470297728191770967929652800882569298380735487638244790214269308964128190852541382471524216581784089915439880674939257746880953456169345526296796121445496004335862327879290419914156623197755997357153025699785761555902721613964392242104863053366128896008844161994616300879423801401688993870524934054961922416498859482682972014498706889124823123022655845159852793130935305893653380666174110360282127080827733757781527018205762987465739541910668614730164390667337557788616839993650708083065393078899656978878511901197233320836138736399486337845427613009358086660853208987347075566743654560145680990187787582205111351209917428489654991915989323084309523530410869859738031594620946530114825471738227786797954984057164849993786180561859786699781434770090396812260941245825194806851625113669746396351247068600695026724097322863457082146226883906846453612304227593407271025945878526544188940004377885577748054738432698547108114226141
 . . . . . . . . . . . . . . . . . . . . [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)
							466d2cad0ff7682b0e3143d66fd0d93ecdfdbca5
 . . . . . . . . . . . . . . . . [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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f1007600f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb2730000016ec0bafab7000004030047304502205bd09fb028f0182c5213ecfac586c2168679a7c590575de0ea9bd218fe556e8e02210099ca754da3232071bb85dd8c742cde0157c0efdb76b3cd34c08dd64d2a06dca7007700b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016ec0bafaab0000040300483046022100e455abdcabab0a965fb7a04d46c3b43e6951c108281df83971c15191160ec40d0221008f0f272f98572400547d961331fe836b1c16ddce646b04cecc5e8de2b68dc0ed
 . . . . [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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