booking.cs.usask.ca
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:df:38:0d:1d:46:4e:a8:64:6c:7d:5c:d1:ac:28:f8:0e:8b 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=booking.cs.usask.ca
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:df:38:0d:1d:46:4e:a8:64:6c:7d:5c:d1:ac:28:f8:0e:8bSerial Number (int): 337294330480033326820284656128205627330187
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 9a:c6:6c:b4:d0:d0:01:14:cc:11:b9:14:42:a4:60:e8:05:2d:fa:22
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): fd:51:58:be:6a:87:8f:97:da:54:f7:6c:93:94:69:fe:b4:42:b9:10
Fingerprint (sha256): 03:6c:13:0f:b7:a0:61:dd:70:b7:5f:f7:70:65:d6:ae:a0:8f:61:b1:f5:1d:c9:40:34:b9:8a:04:d5:41:43:d9
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate booking.cs.usask.ca
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for booking.cs.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
booking.cs.usask.ca
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Certificate
The complete raw certificate details for booking.cs.usask.ca in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFXzCCBEegAwIBAgISA984DR1GTqhkbH1c0awo+A6LMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0yMDA0MDkwODE1NDVaFw0y MDA3MDgwODE1NDVaMB4xHDAaBgNVBAMTE2Jvb2tpbmcuY3MudXNhc2suY2EwggEi MA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQDBzYSkoHZyzcN5sVPt+3lQd3X9 NEBQ+y7sJP5wM24VTgT05TBbu78kEQH8TD2BKbafnsUPMPKxA9DUa9cMFXBDtKuW QKGISK3tF7gepQR1M3Tzb0sO1yM8oz3q5JaLFGTAxEiExMPc4Wo+3hHZCOtK0wC2 IX6OMtLMg/XVw6/EJBiYpcbFtG4aSimxiJtT1gqpfewzT5gznD9n/76QmjDUKSzS mVEmppqMxeHZjluJXMqd+KD4Vr6T+mZ9AIVZ2lzHdyyKNNvrgZQQMJJLN2GUA/1Q i9JwZJfiIK3AUiEUK5lhZPSpo3GdWbKE/U/Qtdoz/opuQn3+yqy/CKzHGqidAgMB AAGjggJpMIICZTAOBgNVHQ8BAf8EBAMCBaAwHQYDVR0lBBYwFAYIKwYBBQUHAwEG CCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYDVR0OBBYEFJrGbLTQ0AEUzBG5FEKk YOgFLfoiMB8GA1UdIwQYMBaAFKhKamMEfd265tE5t6ZFZe/zqOyhMG8GCCsGAQUF BwEBBGMwYTAuBggrBgEFBQcwAYYiaHR0cDovL29jc3AuaW50LXgzLmxldHNlbmNy eXB0Lm9yZzAvBggrBgEFBQcwAoYjaHR0cDovL2NlcnQuaW50LXgzLmxldHNlbmNy eXB0Lm9yZy8wHgYDVR0RBBcwFYITYm9va2luZy5jcy51c2Fzay5jYTBMBgNVHSAE RTBDMAgGBmeBDAECATA3BgsrBgEEAYLfEwEBATAoMCYGCCsGAQUFBwIBFhpodHRw Oi8vY3BzLmxldHNlbmNyeXB0Lm9yZzCCAQUGCisGAQQB1nkCBAIEgfYEgfMA8QB3 APCVpFnyANGCQBAtL5OIjq1L/h1H45nh0DSmsKiqjrJzAAABcV45THkAAAQDAEgw RgIhAId7HdU2E0+PFu4TT3vx79L/qUJeWVURt9hFTX6oZOMvAiEA0TcTtmP9c4e8 eqFvtqbQ3tduEl9nt29F2xLAzNt85FMAdgAHt1wb5X1o//Gwxh0jFce65ld8V5S3 au68YToaadOiHAAAAXFeOUy8AAAEAwBHMEUCIQCf44TPjCYZk+zgSfYs9UoZ0ric tFTAQnHfj+z/Q23UJgIgeKb2khXzhnMsNsWdb0nARVpa4ZYf+l3nM7iK/vg8DbQw DQYJKoZIhvcNAQELBQADggEBAHOAkZxnZEut005r19EE92RnFCdNE/XOEuDBc/0V kpvSU1O+/NHttA/RfmIyHw/PHBypt6P9BjD198yk1YgtpwYEjBzL2Hyjbv6UCIPS 55pxfUJsSKCUAJPyG4GfIfLdafedFv3toOBoMdP8K3bkOVgtUKOgFSpAr1tKo4nV 07G3vjoQl6zYbWLSgkYIxCI+Wos/4+AO6Zr7pJ8XKy3Y6aOZ7Qe/h6YZbcY30D85 s5c3hl16EYSDKl4KwXvmVyTh0tcYtSsgfaUKROvI/7ZSvEWCItYDOMwcgGJvfVj8 PlgOtUyIKJTk2hjUgR7X2dowPp5jxAkzF3TarNxytx32yaY= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAwc2EpKB2cs3DebFT7ft5 UHd1/TRAUPsu7CT+cDNuFU4E9OUwW7u/JBEB/Ew9gSm2n57FDzDysQPQ1GvXDBVw Q7SrlkChiEit7Re4HqUEdTN0829LDtcjPKM96uSWixRkwMRIhMTD3OFqPt4R2Qjr StMAtiF+jjLSzIP11cOvxCQYmKXGxbRuGkopsYibU9YKqX3sM0+YM5w/Z/++kJow 1Cks0plRJqaajMXh2Y5biVzKnfig+Fa+k/pmfQCFWdpcx3csijTb64GUEDCSSzdh lAP9UIvScGSX4iCtwFIhFCuZYWT0qaNxnVmyhP1P0LXaM/6KbkJ9/sqsvwisxxqo nQIDAQAB -----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 337294330480033326820284656128205627330187 . . . . . . . . [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 2020-04-09 08:15:45 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-07-08 08:15:45 +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 'booking.cs.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 24465337628978162885019206006136046401506387902557401334353809781396347260016195021128436066954310167812914279173354351198085625033433608581279124921717204917755670523205244067949924627596488379981552765867455854052824394354474209825727809035484335859642700133245260379707625594348709970769995138049763236530336235186807972979947660196469238883735040261310150184328877794366590811701810796949064320092938282041923213314149137055621389499159807628876220929397186919798829060959202222784443792920581369102685206356782752707902459924411683788989605216328289360252469159327789057170514883026522951302757391571994508175517 . . . . . . . . . . . . . . . . . . . . [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) 9ac66cb4d0d00114cc11b91442a460e8052dfa22 . . . . . . . . . . . . . . . . [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 (23 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'booking.cs.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 (246 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes) 00f1007700f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb273000001715e394c790000040300483046022100877b1dd536134f8f16ee134f7bf1efd2ffa9425e595511b7d8454d7ea864e32f022100d13713b663fd7387bc7aa16fb6a6d0ded76e125f67b76f45db12c0ccdb7ce45300760007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c000001715e394cbc00000403004730450221009fe384cf8c261993ece049f62cf54a19d2b89cb454c04271df8fecff436dd426022078a6f69215f386732c36c59d6f49c0455a5ae1961ffa5de733b88afef83c0db4 . . . . [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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