math.usask.ca

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:d3:83:dd:30:ed:cb:f0:05:28:e8:63:00:a1:3e:35:21:0f 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=math.usask.ca

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:d3:83:dd:30:ed:cb:f0:05:28:e8:63:00:a1:3e:35:21:0f
Serial Number (int): 420424000504808413668241660467738897096975
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: d6:dc:62:f1:53:38:4a:25:1e:dd:3f:5f:29:8a:6a:28:11:a4:b9:a1
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 3f:84:db:72:a2:8b:61:a0:bc:2e:6b:d3:88:fb:29:4c:f5:2a:04:04
Fingerprint (sha256): 06:04:3a:e8:66:66:70:fa:f7:0b:09:6d:ae:c1:53:fb:67:c9:94:a3:cc:a6:a4:19:79:0c:d1:7b:b2:a2:e9:df

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 math.usask.ca

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for math.usask.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

math.usask.ca

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booking.cs.usask.ca
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borris.usask.ca
static.huskies.usask.ca
mydataplants.usask.ca
huskies.usask.ca
cst.cs.usask.ca
www.edwards.usask.ca
asweb.usask.ca
defiant.usask.ca
simcity.usask.ca
amigo.usask.ca
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touch.usask.ca
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journals.usask.ca
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medicine.usask.ca
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winnowing.usask.ca
mytotalrewards-auth.usask.ca
asdev.usask.ca
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static.huskies.usask.ca
shirpaccess.usask.ca
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Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAu2VxRS3d1ubmvs/COeSN
cNOzpaXrS1RMsWlt+A0iAoclFhRBKkZs7kUL3h8c1q/vty4Ny1Mu1EYJ+mZh0R3u
Iy7v7boQ/87EPHdrpP49F7sWFW320ImmgtNraS5pjWantVXOhe5t2+38qwTDH6/d
cKee7kSJyASYDYLWT77lwvSH1gqdQ0GeFg/k07pkZROQ1r32S9HnqDKKzTWHlLyD
1M/9ilbEOcDIJByDe8XG303KkE6TUNbymm4KJvnm5+yJ+9QHfUt9/NI9MMMSTH/Q
qVt4laUcdViUNl0ujsFXe6BVUk5RGuegwJxWGUUqiN7VdiayBL+8kQ1I9sTa2jI9
kwIDAQAB
-----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 420424000504808413668241660467738897096975
 . . . . . . . . [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 2020-11-10 23:06:50 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2021-02-08 23:06:50 +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 'math.usask.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 23656586170974463268031719173477769159512662222033562592314086903707268664708184405402910069998672065917359115829028360165568136375498515912132879387325359472600437781195577727466687423056079630518377872650904123279128666427727771263227005216220488612645521847790505790602755067162301983259156696224180482096955033571459852354994784135284830279730520839934195356248371325391478414514706920466605024969506747909289008560996382869236910235336782469326664524699392168877675064361298528373674227429321619048754456822457719192477332910708568692753844832244368833696284636015611441578834207577200982836787802867888125263251
 . . . . . . . . . . . . . . . . . . . . [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)
							d6dc62f153384a251edd3f5f298a6a2811a4b9a1
 . . . . . . . . . . . . . . . . [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 (17 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'math.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 (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)
							00ef007600f65c942fd1773022145418083094568ee34d131933bfdf0c2f200bcc4ef164e300000175b4a05f3b000004030047304502203d9163cd0cb8738bb1612fb3aafe2d40994655beac1e802e39d462c163447b46022100bf46c865e42654a146e90fcf4da695667d3bd6d4b99eb824b49078bd9c23d9500075006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d91300000175b4a05f7100000403004630440220235b60162d50eb884011c76d66d8d87cc65fe677bf39a23898ee5a3b2fdcc7f402203f1ea069730d8b23478080a606d938a0d180b72cce61491cd33ec2fc6c83aff9
 . . . . [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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