cryptoworks21.uwaterloo.ca
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:f9:f7:ae:2b:58:68:5e:46:2e:be:6c:e8:62:18:1b:9f:6c 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=cryptoworks21.uwaterloo.ca
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:f9:f7:ae:2b:58:68:5e:46:2e:be:6c:e8:62:18:1b:9f:6cSerial Number (int): 346396390812354668292620059634550777290604
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: ec:ff:99:fa:b9:60:68:5b:40:40:98:59:28:48:1f:eb:72:8e:b4:5d
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): a3:48:50:64:a7:a0:36:66:e3:75:ad:d2:7a:32:2a:68:06:1a:b2:10
Fingerprint (sha256): 00:21:cc:f5:05:0b:74:42:e6:0a:87:72:05:37:65:6c:4b:cf:e1:7f:de:b5:d2:2d:ce:4d:fe:37:5f:5e:c7:93
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate cryptoworks21.uwaterloo.ca
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for cryptoworks21.uwaterloo.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
cryptoworks21.uwaterloo.ca
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Certificate
The complete raw certificate details for cryptoworks21.uwaterloo.ca in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFajCCBFKgAwIBAgISA/n3ritYaF5GLr5s6GIYG59sMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0yMDAyMjUxNTA1NDlaFw0y MDA1MjUxNTA1NDlaMCUxIzAhBgNVBAMTGmNyeXB0b3dvcmtzMjEudXdhdGVybG9v LmNhMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0CMQdwaw5XFwsouH VMAjbxS43xjBS1jfnlsdqCCOcgZs/G0JTdw3qlWh2te6efTuUDwlaV/m/0O7gKba JfbK2vHf8ZtdqSeO2mgPI0wf+vP05GTZUM9/dry8EphMEosM5yvx2Msc/A8imC+L Yyrk5HIX8AG5jeCJxQrRMj6NS98+T3M9peir2tGaXTYKnelumeyAhA0eRy2zeMaB skvmyXjMMrGm5fLe14IOkbNPHS19LEDmbs6zicxlQzPUYxRK5PczOdr6ODhOEGzI Ju2KTmSc5n/LBMUzJzfzOtTtdB9sS+YIsVTTDuIBsXczltfhn9UNhez14z3SWqcd xa5AiwIDAQABo4ICbTCCAmkwDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQGCCsG AQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBTs/5n6uWBo W0BAmFkoSB/rco60XTAfBgNVHSMEGDAWgBSoSmpjBH3duubRObemRWXv86jsoTBv BggrBgEFBQcBAQRjMGEwLgYIKwYBBQUHMAGGImh0dHA6Ly9vY3NwLmludC14My5s ZXRzZW5jcnlwdC5vcmcwLwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0LmludC14My5s ZXRzZW5jcnlwdC5vcmcvMCUGA1UdEQQeMByCGmNyeXB0b3dvcmtzMjEudXdhdGVy bG9vLmNhMEwGA1UdIARFMEMwCAYGZ4EMAQIBMDcGCysGAQQBgt8TAQEBMCgwJgYI KwYBBQUHAgEWGmh0dHA6Ly9jcHMubGV0c2VuY3J5cHQub3JnMIIBAgYKKwYBBAHW eQIEAgSB8wSB8ADuAHUA8JWkWfIA0YJAEC0vk4iOrUv+HUfjmeHQNKawqKqOsnMA AAFwfRjoZgAABAMARjBEAiA3qRRUKENw4sIpnzJfpzIbusEephS1uEJNNA7obMqz nwIgGkhKw0qfDkQ89gJVmWkvl12S7wAiHKpMSpwGBmR6AWYAdQCyHgXMi6LNiiBO h2b5K7mKJSBna9r6cOeySVMt74uQXgAAAXB9GOh/AAAEAwBGMEQCICx+OhC9eQI7 Bf5YwM6U3XGLCWYee5iQTa36T/juVrXpAiAhRTml2v7zYJ8UFCVYb1+WGsXnDVEb ucm8kuuDeYjBdzANBgkqhkiG9w0BAQsFAAOCAQEAUsHmgSpzCk22hdmrv6ODOlIT UHKHNi6xpmTRdMZGbCP3A1u4CDM/8BLDvfN1icJisimA9H2EWGlVfXu+oJM3vBfu Cjn1OHBLdEM3gI2Jewp4UPnGz8Fy/2iZjFdEHGf2ah8gvAaOWevFepOndep/Z987 aOVXSNKsd/7ls6p0vgU+F7FO9kEvQkhIcabtsfcLditIpCx33bxCJh0EbOFvt6Xi Fh/vCNJ7f7Rstp0WagJmDfExx32yuQbHR2VBYikC8HdVU1AHvLseloiS2NCVqGfE 4y15w+ciSPkfgU891j5VhXNOMZAvDDdSKU1M7QCFO3HgYOe95shY1pzxAoGpiA== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0CMQdwaw5XFwsouHVMAj bxS43xjBS1jfnlsdqCCOcgZs/G0JTdw3qlWh2te6efTuUDwlaV/m/0O7gKbaJfbK 2vHf8ZtdqSeO2mgPI0wf+vP05GTZUM9/dry8EphMEosM5yvx2Msc/A8imC+LYyrk 5HIX8AG5jeCJxQrRMj6NS98+T3M9peir2tGaXTYKnelumeyAhA0eRy2zeMaBskvm yXjMMrGm5fLe14IOkbNPHS19LEDmbs6zicxlQzPUYxRK5PczOdr6ODhOEGzIJu2K TmSc5n/LBMUzJzfzOtTtdB9sS+YIsVTTDuIBsXczltfhn9UNhez14z3SWqcdxa5A iwIDAQAB -----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 346396390812354668292620059634550777290604 . . . . . . . . [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 2020-02-25 15:05:49 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-05-25 15:05:49 +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 'cryptoworks21.uwaterloo.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 26274858291694937612269540466895153756288378515946195637660612975322418004883840876573188503103319531615128066389656671068417468264346431509255946231501064738054314351560299340114045324996014476219547566709410553420288232707382099845742703959194204364526496662683249872792981702888321965899763094700638010634097829747725584566491941448484515818018990858384108650363970975760881706359778457519683601552321328460963995749769150676526991892085128450068731834863969167119606810801368794488569839995226402371826467053627480622771823167647174278769612350964407733256929380467493331352121441607992663242736728308708415520907 . . . . . . . . . . . . . . . . . . . . [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) ecff99fab960685b4040985928481feb728eb45d . . . . . . . . . . . . . . . . [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 (30 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cryptoworks21.uwaterloo.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 (243 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (240 bytes) 00ee007500f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb273000001707d18e8660000040300463044022037a91454284370e2c2299f325fa7321bbac11ea614b5b8424d340ee86ccab39f02201a484ac34a9f0e443cf6025599692f975d92ef00221caa4c4a9c0606647a0166007500b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e000001707d18e87f000004030046304402202c7e3a10bd79023b05fe58c0ce94dd718b09661e7b98904dadfa4ff8ee56b5e90220214539a5dafef3609f141425586f5f961ac5e70d511bb9c9bc92eb837988c177 . . . . [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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