cs.fit.edu

Issued by R3

About this certificate

This digital certificate with serial number 03:67:aa:e1:8c:89:a5:47:52:e3:36:96:bc:da:ff:5d:17:4e was issued on by Let's Encrypt.

With 9 subject alternative names this certificate can be used to secure multiple fqdn's. 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=cs.fit.edu

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:67:aa:e1:8c:89:a5:47:52:e3:36:96:bc:da:ff:5d:17:4e
Serial Number (int): 296613081464656761738676533851949843158862
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 33:72:d1:66:f2:98:20:f8:87:d8:60:3f:6f:b0:3e:59:eb:46:67:e5
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 6f:2e:73:96:01:67:b3:f9:17:a4:00:8a:b7:c8:9c:4c:9e:10:ed:d6
Fingerprint (sha256): 12:3e:d4:f2:33:d5:39:c7:b8:31:26:72:03:05:d9:ed:4e:32:1d:71:38:0c:6b:73:56:28:29:c0:32:6b:ff:31

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

Revocation information

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

Check the revocation status for certificate cs.fit.edu

9

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for cs.fit.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

cs.fit.edu
dev.cs.fit.edu
fcrar2020.fit.edu
internal.cs.fit.edu
ser.cs.fit.edu
sst.fit.edu
udiscps.fit.edu
vote.fit.edu
www.cs.fit.edu

Other certificates including the domain name fit.edu

(limited to 100 certificates)

Certificate

The complete raw certificate details for cs.fit.edu in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAv5Dg3QYYy9H2EAB1zHjX
Oz8CC612rhk5hqhQez1eoEtU+osM3Cs4nK5J1cTyqBkDybrn/kAuoYKb6c6MzsFq
wwbBGBldyABWx76AxrbdSOvbL3BvYc4ZnHACaBz+wzG9IKWt2Xl9uJ//xQWB/7QW
8q6KRgAqvsSN/Z4hhlqxMrBBFy0MnXuDR77l60WKANWL536hsU82IUwhmbRXMHQF
UYgQISz5OaNHZReE4OgW0nZ5q3C0eZh+B1tPF24LBS1sgaIRXl+6x0RRL1PEZ+g2
buLgn8SjBzgvRLlnYUxYlzlOWmiRWfLE93QWZ+WtdNeOeUiMLArrkfEAHU9f2vsK
1QIDAQAB
-----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 296613081464656761738676533851949843158862
 . . . . . . . . [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 2023-10-01 10:06:04 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-12-30 10:06:03 +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 'cs.fit.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 24182958436711272311354410195757591294596621476643568351940609429525766984188896134990860353487265059972871102571512916201086842997778651678395363957634326903847526647814723402906314513546832080372919659068762152473073634679531548898660920704083852457181297403613693413936204839512310742168687624429619197944618100451081210631340126018228560577453150126540851523176488641567419861326140170828233646021842151054273303066587562666012104719086069319603769062120178010648676262449235123825697354754619122750932952864814439089199800512766212426147919116597465122994899401909226265353722260566163657823639746869107042749141
 . . . . . . . . . . . . . . . . . . . . [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)
							3372d166f29820f887d8603f6fb03e59eb4667e5
 . . . . . . . . . . . . . . . . [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 (147 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cs.fit.edu'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'dev.cs.fit.edu'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'fcrar2020.fit.edu'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'internal.cs.fit.edu'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'ser.cs.fit.edu'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'sst.fit.edu'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'udiscps.fit.edu'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'vote.fit.edu'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.cs.fit.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 (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 (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef0075007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb520000018aeaeab3f80000040300463044022066008b33bd1e74ac108abc7a639256d09d578aba8dc160462da6d1a904828de902200c31f806fb0cc67a1fa99e2427fd6685aa08f2a48fd5a562cc4f3fa1318de100007600b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb4990000018aeaeab4060000040300473045022063c2d33766f2327097818920f735a238cd5f1b6cc2107785a357b073718030990221008c49ce913e3f31f03a25a80de359857a1a0c1c6dfdefe94a1c7c2a627cd71c8f
 . . . . [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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