biglab.ca

Issued by R3

About this certificate

This digital certificate with serial number 03:4b:71:ff:bf:65:b7:95:ce:62:a0:8c:e7:d2:50:f6:43:84 was issued on by Let's Encrypt.

With 2 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=biglab.ca

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:4b:71:ff:bf:65:b7:95:ce:62:a0:8c:e7:d2:50:f6:43:84
Serial Number (int): 287009565995572842147089222604356578591620
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: ac:46:8e:f5:56:2e:c1:aa:a3:7b:c9:a4:7f:9d:af:c6:b2:f8:e3:33
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 19:02:e2:8f:f6:b9:3e:3b:ae:e7:3c:12:ad:1f:3f:9c:7f:0d:33:a1
Fingerprint (sha256): e1:28:51:33:2d:a7:9e:e9:23:1c:39:7c:1c:b4:1e:df:0f:b9:d0:87:70:56:f8:02:3f:9e:9c:7c:9c:57:9b:8a

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

Revocation information

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

Check the revocation status for certificate biglab.ca

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for biglab.ca

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

biglab.ca
graphics.usask.ca

Other certificates including the domain name biglab.ca

(limited to 100 certificates)
biglab.ca
biglab.ca
biglab.ca
biglab.ca
biglab.ca
biglab.ca

Certificate

The complete raw certificate details for biglab.ca in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAxdw/sWYTIgYR2AwwMf7e
sZf7T9IdMby169Xn48miis3Ejmypm8fXKNl9yJJk9itF7IsoaGoAnuAXnc0OJxKu
BeQYon6laPTkF+G56E9ymf2xI96oZzWld2OHp/2teB/xtmT+sFNKMrZ0uhybZw30
yhSOI5z7UCzxMbImcQIwtyJc5g27xKeF4Lka3Dw1YzNWJUDoY4WDazBQfLhD6X5l
3RYqb3lpDXTfYWRIaYn5NZDtF0pM90AjVtN/9BGF6FKeWXqyUAkj5AH044WikcZM
fF3bz4eQ4YEJ36q2kQk3t4RgUORVeGAwVLSU1NFjg8V8jbK1W7d3YBRAvITTsqyK
MwIDAQAB
-----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 287009565995572842147089222604356578591620
 . . . . . . . . [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 2023-09-18 01:04:58 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-12-17 01:04:57 +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 'biglab.ca'
 . . . . . . . . [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 24977554809811887571679988298675759415850842429537764539118732391492191412039523053044170889985848644578695442550745147090317044577300269960612035573537810135751106192337863900501045933850058471327316980592106260492570891127376079657096809417847647883973684964350607772979625929942640967799472671533607353900465121449260524428030119326889783437451991776134901649022465793562519753062814775282147730429478056981845959302365193319751674120736192421267794051754326543472813036224262602714066536569273205671374717368033540394963999201103086881104792307237495729769231689317175718382580628204106542327083837425504085641779
 . . . . . . . . . . . . . . . . . . . . [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)
							ac468ef5562ec1aaa37bc9a47f9dafc6b2f8e333
 . . . . . . . . . . . . . . . . [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 (32 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'biglab.ca'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'graphics.usask.ca'
 . . . . . . . . . . . . . . . . [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)
							00ef0076007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb520000018aa608a4b40000040300473045022100871f54fc7ea3f260d044ca7d03d3b88cd1c81b9a6ca687737fc8156d9bd41af20220412938d2d18ba4eaddf86fd48909414c73ce7e3f120df9881e2a9e7ead917406007500b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb4990000018aa608a4d50000040300463044022041df497c3be9c8d37551ed6265d5838b7facc6167586ce64c8992e69d8da356502205bcadeaeb0c4d70924742d361defbd245523fe4582adea3be8b112bd4d4f809e
 . . . . [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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