learn.ciachef.edu

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:6f:43:66:e0:9e:20:df:fa:33:dd:6a:0f:0e:4c:96:79:d5 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): 04:6f:43:66:e0:9e:20:df:fa:33:dd:6a:0f:0e:4c:96:79:d5
Serial Number (int): 386310078901050291134381201273545161079253
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 00:fc:a9:34:96:73:6e:3f:b7:34:e5:d9:ce:af:85:70:8f:36:d7:f0
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 30:fd:c3:06:96:e8:5e:b9:57:ca:4b:79:f5:07:7f:0a:ad:60:ed:44
Fingerprint (sha256): 34:f7:25:29:7d:ac:21:00:21:f3:b0:23:33:7a:e8:5f:30:43:a5:92:eb:9f:af:33:4e:6b:75:32:30:5f:a8:ec

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-----
MIIGWTCCBUGgAwIBAgISBG9DZuCeIN/6M91qDw5MlnnVMA0GCSqGSIb3DQEBCwUA
MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD
ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTA3MjAxMDEwMDhaFw0x
OTEwMTgxMDEwMDhaMBwxGjAYBgNVBAMTEWxlYXJuLmNpYWNoZWYuZWR1MIICIjAN
BgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAt923Yq71aqyFyPWmum3GNV7qwtym
d/g0ZW0kGo2eVc5wFQLibg9AV6nF+EgT/7WmxkHRoMwkjVW4+arwoq0HnyJ8ATfx
8x00psdEalF/GWmx5hgbGLJEDq31OXwUIITr+80AnAViOTRYIxj3R4+df1GGOray
i6F2u9WzEwDG9Cz7L7FsblO3u3D3nZxh9v7EKCmYqeyBpF4ZwRhLYNTtnUFHqMGG
gBnmBPfNpUr7vblfvijuDpkEsmGJL+lxMFwyLfBrikwfi5eByVZgqyAJYiue499g
wLuJ9islaD/hyT7GPkD/JbMNtPJrVH/5iTNdKNp6WF+rkZg3+9232nqadXDkw4wR
t4DAwuN0U7yOv6I95VCDvzQM5jBr67D1paanA8W5bFsURjfvgg2cHt+Id14qmdU1
/zZPoIKf69nAFgrxISDTGh4x1J/cFK8yBWcWwf5H0Y3yZaNI4W4d/qTCKivveFj9
Pr4j2xw+IMW2rJgzAlUCnUnlz34F47r0pWBgc2OK6GRVXjDqqHywZi57lS9E6sY6
rwq4XlIyzt6l/4MGwWnU3s07nyX9KrlE1LWexO9GKrglkU0ZXZVu0yZ7eYZkdnAT
vNKIfOqYbL9i08EoFzU8Bj0bEaTUSwUsOL7KVNBAMxTyld4DFnKZ6UGjn/+fMF/V
dpCBPHH4qx5olCkCAwEAAaOCAmUwggJhMA4GA1UdDwEB/wQEAwIFoDAdBgNVHSUE
FjAUBggrBgEFBQcDAQYIKwYBBQUHAwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4EFgQU
APypNJZzbj+3NOXZzq+FcI821/AwHwYDVR0jBBgwFoAUqEpqYwR93brm0Tm3pkVl
7/Oo7KEwbwYIKwYBBQUHAQEEYzBhMC4GCCsGAQUFBzABhiJodHRwOi8vb2NzcC5p
bnQteDMubGV0c2VuY3J5cHQub3JnMC8GCCsGAQUFBzAChiNodHRwOi8vY2VydC5p
bnQteDMubGV0c2VuY3J5cHQub3JnLzAcBgNVHREEFTATghFsZWFybi5jaWFjaGVm
LmVkdTBMBgNVHSAERTBDMAgGBmeBDAECATA3BgsrBgEEAYLfEwEBATAoMCYGCCsG
AQUFBwIBFhpodHRwOi8vY3BzLmxldHNlbmNyeXB0Lm9yZzCCAQMGCisGAQQB1nkC
BAIEgfQEgfEA7wB2AG9Tdqwx8DEZ2JkApFEV/3cVHBHZAsEAKQaNsgiaN9kTAAAB
bA8TJcAAAAQDAEcwRQIgAtXe4vZ84gnkZQsYG24QxQJaJLRAPVKmJZaTrfrGL5kC
IQCda26AiQQiAAyxpy5tUHr0gKOkC46E++QULxawMdoC3QB1ACk8UZZUyDlluqpQ
/FgH1Ldvv1h6KXLcpMMM9OVFR/R4AAABbA8TJ38AAAQDAEYwRAIfGF9bFF8BSqIM
z7g2z2OENIiKge3MruV3sneNMjUtfQIhAMxSW8BkW6t5VmqAb47JZJttNLJ9r8sq
Q2+fz3ts5qFqMA0GCSqGSIb3DQEBCwUAA4IBAQBJCDszbLzVezDxn+h3fvuGh0oW
AWhFTe1maQsD+Cyscqrhz1o7eCe76QXYjVlndS6VSD/m++lKNrmfyW+viLr46i4s
dXhty+MSumCotzQ0VavmdU5goPZrUUQ467KEX3EMYoskT/juA5kOb9PCwLopYBKl
ifxg3CnaAzxHmHgeOXGgPFHlWGKiQoNUNAEGXauZvCxZ8JvxzAtjjkT0IMHhiSUB
bqMSLAOnrAFy6JkiLGlcKo0bGNiZqf4dYcT0WqNscT6rkIMAIfROQL0AAraiU53E
jAImU8n3JS68CzzHbbIBL36JSjb60/biH/1n1wcF2yhVksZn+qFTvPy00mdv
-----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 386310078901050291134381201273545161079253
 . . . . . . . . [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 2019-07-20 10:10:08 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-10-18 10:10:08 +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 750108160503084095187657337124388393197950546339111108997217383725866503409000364962248888933691778132218226752225404290655934166326798975673811824517114461086708134779324750252896639475852566516424937207181540349851578327486499512883145076719183440687857737903686993167119152596624057627479615715590053407842923684550666981049735179720516650596258768872480104655528439270108843270223960364895248589622605450403956373543884951500465369386524037417046761695464468267814430988700856512173815012463379651711994617406561689681181918413703377399421859144516988854790635342230746490340443821973900836262271619937905132398598316116724777945488627454978088267867475687458524328923495976480546279133641940987190892294809486844836256120446555151753632310766400108663072869698249575348034320034548390328680525840042945868912276185859825974245675237101645891047120859361670060642361486803038106315679004754079870326589867773085987988322872697493575299906035677459704774380199937536859558273345011042594246042782424213249058335506485026761781350949827389997949876716927560831275135347970155143030272661002855954369859222993381453019322008058430910492135418035519125074303798725701958920289731553863936479343334215998419747881093869680042869036073
 . . . . . . . . . . . . . . . . . . . . [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)
							00fca93496736e3fb734e5d9ceaf85708f36d7f0
 . . . . . . . . . . . . . . . . [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 (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef0076006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d9130000016c0f1325c00000040300473045022002d5dee2f67ce209e4650b181b6e10c5025a24b4403d52a6259693adfac62f990221009d6b6e80890422000cb1a72e6d507af480a3a40b8e84fbe4142f16b031da02dd007500293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016c0f13277f0000040300463044021f185f5b145f014aa20ccfb836cf638434888a81edccaee577b2778d32352d7d022100cc525bc0645bab79566a806f8ec9649b6d34b27dafcb2a436f9fcf7b6ce6a16a
 . . . . [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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