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:35:21:0fSerial 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.orgCheck 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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shoptest.usask.ca
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journals.usask.ca
chp3.usask.ca
mail.usask.ca
dsm.sess.usask.ca
www.edwards.usask.ca
sesdchannels.usask.ca
dinewithusdev.usask.ca
simcity.usask.ca
students.edwards.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----- MIIFUTCCBDmgAwIBAgISBNOD3TDty/AFKOhjAKE+NSEPMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0yMDExMTAyMzA2NTBaFw0y MTAyMDgyMzA2NTBaMBgxFjAUBgNVBAMTDW1hdGgudXNhc2suY2EwggEiMA0GCSqG SIb3DQEBAQUAA4IBDwAwggEKAoIBAQC7ZXFFLd3W5ua+z8I55I1w07OlpetLVEyx aW34DSIChyUWFEEqRmzuRQveHxzWr++3Lg3LUy7URgn6ZmHRHe4jLu/tuhD/zsQ8 d2uk/j0XuxYVbfbQiaaC02tpLmmNZqe1Vc6F7m3b7fyrBMMfr91wp57uRInIBJgN gtZPvuXC9IfWCp1DQZ4WD+TTumRlE5DWvfZL0eeoMorNNYeUvIPUz/2KVsQ5wMgk HIN7xcbfTcqQTpNQ1vKabgom+ebn7In71Ad9S3380j0wwxJMf9CpW3iVpRx1WJQ2 XS6OwVd7oFVSTlEa56DAnFYZRSqI3tV2JrIEv7yRDUj2xNraMj2TAgMBAAGjggJh MIICXTAOBgNVHQ8BAf8EBAMCBaAwHQYDVR0lBBYwFAYIKwYBBQUHAwEGCCsGAQUF BwMCMAwGA1UdEwEB/wQCMAAwHQYDVR0OBBYEFNbcYvFTOEolHt0/XymKaigRpLmh MB8GA1UdIwQYMBaAFKhKamMEfd265tE5t6ZFZe/zqOyhMG8GCCsGAQUFBwEBBGMw YTAuBggrBgEFBQcwAYYiaHR0cDovL29jc3AuaW50LXgzLmxldHNlbmNyeXB0Lm9y ZzAvBggrBgEFBQcwAoYjaHR0cDovL2NlcnQuaW50LXgzLmxldHNlbmNyeXB0Lm9y Zy8wGAYDVR0RBBEwD4INbWF0aC51c2Fzay5jYTBMBgNVHSAERTBDMAgGBmeBDAEC ATA3BgsrBgEEAYLfEwEBATAoMCYGCCsGAQUFBwIBFhpodHRwOi8vY3BzLmxldHNl bmNyeXB0Lm9yZzCCAQMGCisGAQQB1nkCBAIEgfQEgfEA7wB2APZclC/RdzAiFFQY CDCUVo7jTRMZM7/fDC8gC8xO8WTjAAABdbSgXzsAAAQDAEcwRQIgPZFjzQy4c4ux YS+zqv4tQJlGVb6sHoAuOdRiwWNEe0YCIQC/Rshl5CZUoUbpD89NppVmfTvW1Lme uCS0kHi9nCPZUAB1AG9Tdqwx8DEZ2JkApFEV/3cVHBHZAsEAKQaNsgiaN9kTAAAB dbSgX3EAAAQDAEYwRAIgI1tgFi1Q64hAEcdtZtjYfMZf5ne/OaI4mO5aOy/cx/QC ID8eoGlzDYsjR4CApgbZOKDRgLcszmFJHNM+wvxsg6/5MA0GCSqGSIb3DQEBCwUA A4IBAQAXTJCzNiuP+nwVDVFWe9QmMjQV1WTHhD70Gvg8UiKYUC/yAgArD0Dtkxqx 2oUAwZncaCQzPd9T16q8MPst/emax4LG8fbQnoZ5BNrJH1Zn4GJL5XaI4PYdo3gU gpiFtEcbPfzvjfbt/UjjISjw1vZBS8ekNxm1u7Ulss91VoIaOxqjwJ4oAw1rsVL7 d4afy/9kNZZ1P7JCvz2kVMGrl20elCaolKRKobJEnA4z2JnmHLL0P8QomVd2nLhh 63vQl4/skEskFDI9uR1lkkWdD6l3Msz3IDJrP3laJtLDFEKdgALbEw+PiUXrrtE2 tveI+BJVoU/NE4vzeFn33ivdfqN8 -----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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