canvas.suss.edu.sg

Issued by R3

About this certificate

This digital certificate with serial number 03:bc:33:2d:0e:70:1e:95:ba:4e:7d:20:d4:bd:d7:3d:ae:36 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:
  • 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=canvas.suss.edu.sg

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:bc:33:2d:0e:70:1e:95:ba:4e:7d:20:d4:bd:d7:3d:ae:36
Serial Number (int): 325377967350397590060518285706595913281078
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 67:1f:ad:14:44:c2:e6:02:d8:02:0b:01:cc:9d:c3:6f:de:57:22:fd
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 9b:67:1d:75:db:22:dd:48:fb:89:37:62:79:09:50:75:40:77:73:5b
Fingerprint (sha256): 2d:bf:0c:98:42:d0:be:18:a1:a5:f3:34:03:09:b4:a7:3a:de:12:8f:69:d3:71:11:8b:08:a7:ff:53:ed:36:8c

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

Revocation information

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

Check the revocation status for certificate canvas.suss.edu.sg

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for canvas.suss.edu.sg

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

canvas.suss.edu.sg

Other certificates including the domain name suss.edu.sg

(limited to 100 certificates)
webmail.suss.edu.sg
lifelongconnect.suss.edu.sg
survey.suss.edu.sg
isotope.suss.edu.sg
*.suss.edu.sg
www.suss.edu.sg
*.unisim.edu.sg
infotalks.suss.edu.sg
search.library.suss.edu.sg
sts.suss.edu.sg
www.suss.edu.sg
libanswers.suss.edu.sg
prod.suss.edu.sg
portal.suss.edu.sg
ialmembership.suss.edu.sg
portal.suss.edu.sg
*.suss.edu.sg
careers.suss.edu.sg
isotope.suss.edu.sg
www.suss.edu.sg
infotalks.suss.edu.sg
library.suss.edu.sg
sussopencert.suss.edu.sg
webmail.suss.edu.sg
*.suss.edu.sg
*.sim.edu.sg
library.suss.edu.sg
www.suss.edu.sg
*.suss.edu.sg
barium.suss.edu.sg
*.suss.edu.sg
jira.suss.edu.sg
canvas.suss.edu.sg
libguides.suss.edu.sg
careers.suss.edu.sg
infotalks.suss.edu.sg
webmail.suss.edu.sg
donation.suss.edu.sg
search.library.suss.edu.sg
infotalks.suss.edu.sg
us.prod.campusgroups.com
sfcms.suss.edu.sg
mail.suss.edu.sg
canvas.suss.edu.sg
*.suss.edu.sg
isotope.suss.edu.sg
portal.suss.edu.sg
lifelongconnect.suss.edu.sg
my.suss.edu.sg
libguides.suss.edu.sg
*.suss.edu.sg
mail.suss.edu.sg
mail.suss.edu.sg
www5.suss.edu.sg
prod.suss.edu.sg
survey.suss.edu.sg
barium.suss.edu.sg
infotalks.suss.edu.sg
library.suss.edu.sg
www5.suss.edu.sg
*.unisim.edu.sg
sbox.suss.edu.sg
isotope.suss.edu.sg
sts.suss.edu.sg
libguides.suss.edu.sg
webmail.suss.edu.sg
sgsls.suss.edu.sg
temptracker.suss.edu.sg
www.suss.edu.sg
sbox.suss.edu.sg
*.suss.edu.sg
*.suss.edu.sg
snowcapstone.suss.edu.sg
support.suss.edu.sg
libguides.suss.edu.sg
barium.suss.edu.sg
donation.suss.edu.sg
ialmembership.suss.edu.sg
survey.suss.edu.sg
search.library.suss.edu.sg
*.suss.edu.sg
hosting3.bluera.com
libanswers.suss.edu.sg
login.suss.edu.sg
authen.suss.edu.sg
jira.suss.edu.sg
*.suss.edu.sg
hosting3.bluera.com
*.suss.edu.sg
libanswers.suss.edu.sg
webmail.suss.edu.sg
canvas.suss.edu.sg
isotope.suss.edu.sg
prod.suss.edu.sg
www5.suss.edu.sg
libanswers.suss.edu.sg
canvas.suss.edu.sg
library.suss.edu.sg
webmail.suss.edu.sg
sts.suss.edu.sg

Certificate

The complete raw certificate details for canvas.suss.edu.sg in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0U3h7pQZLIAj5ZUE7OqZ
ymKETFd+ucXx8XmeAKy1JdU8+IseEfy9i767zdUhZ9ZtzxvZTJ9S84Xcy5f/PErH
aEajY5gO/FNJSDbR/uMVmUGB+WB09lJutFle/b0mghn7G+TJJr4KAfT08yMK2k/S
4QwlJqduLYBhlsBy8Xi+m1OeCTdDChCbd/lAnxNxmcA7DJ/sfH4HGyVsrRKs+Ii+
I/O3CvTHXmB3VPlq1aV8JorbUbbpFEzelFs/xnVwHd0YAa9lWAmlcKQYy4bAlyEs
chI0+xYeyFvyMViAMIo91G/23zX7YQVluv3cCS+I6bT7f3C2feSFsnix9RB9Ov7R
HwIDAQAB
-----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 325377967350397590060518285706595913281078
 . . . . . . . . [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 2023-09-20 00:54:04 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-12-19 00:54:03 +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 'canvas.suss.edu.sg'
 . . . . . . . . [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 26422211053054505522620645596710395430526472204339899483322552779476070158388897242731366797779956734838991200710088895543246059032557147239853762223816551271714990807716765418598585108992702030016341413748836263604015109921561592156831127337054437627303413648142077008922954852390894819784931798848922458060809439831659205342129559423034000535484067168806078098901927392873978651647181033273138418500451639580159872414013916929636928968106706428600566160903047379434432824642893109177632348935681594952132246754187994416577273416343325852562367948687651446021240637645063665065065402661420545992627698705348232663327
 . . . . . . . . . . . . . . . . . . . . [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)
							671fad1444c2e602d8020b01cc9dc36fde5722fd
 . . . . . . . . . . . . . . . . [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 (22 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'canvas.suss.edu.sg'
 . . . . . . . . . . . . . . . . [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 (243 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (240 bytes)
							00ee007500b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb4990000018ab04b6174000004030046304402201f8fe744c408f29464d9169d510cce48b5d5d86fb533eb9046e89db801989ef50220328e373624a760fbb41bc5612326142bafd4cfda4f5e07afdbbd80b9be70f61b0075007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb520000018ab04b618000000403004630440220375437fa0b2ab03fc1c1ac11311ccc2c2185280f62eb2a47d4f1a425a7968478022054fd76122a2988d31f54b34a54b4cbc3fdf2534ad0e115bb8f69ca734ae30e56
 . . . . [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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