www.sddu.leeds.ac.uk
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:dd:72:fc:3b:87:42:15:38:87:0e:12:e0:06:1a:4c:39:d8 was issued on by Let's Encrypt.
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Certificate Subject
CN=www.sddu.leeds.ac.uk
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:dd:72:fc:3b:87:42:15:38:87:0e:12:e0:06:1a:4c:39:d8Serial Number (int): 336692102542514391771259419319564296272344
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 55:0f:85:19:e5:f7:68:a9:02:e0:e0:4f:55:b1:b3:f1:71:5b:f4:bf
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 94:64:8f:61:c0:30:a2:98:37:39:0e:98:b0:0a:6c:0e:87:c7:24:09
Fingerprint (sha256): 00:30:10:af:05:ee:87:99:99:09:1f:23:dc:bc:18:eb:cc:fa:84:5d:6f:25:51:96:22:bb:e8:5f:ec:03:49:c7
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate www.sddu.leeds.ac.uk
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for www.sddu.leeds.ac.uk
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
www.sddu.leeds.ac.uk
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Certificate
The complete raw certificate details for www.sddu.leeds.ac.uk in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFYDCCBEigAwIBAgISA91y/DuHQhU4hw4S4AYaTDnYMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTExMjYxMzIzMzFaFw0y MDAyMjQxMzIzMzFaMB8xHTAbBgNVBAMTFHd3dy5zZGR1LmxlZWRzLmFjLnVrMIIB IjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAxW6mgwLCkkCQK8GXIaBYwgyh j4VaYTPiF4JQKh5FieP8wC+x3GFinY3GpuXUgLBihhxyuxUR1Sx2CLJFVj10LPAB l9JkPjAWlK02qTEfDhFPyMsOljzqoGF8tABKwtELU4k4MkaLkxATopol5WXcOWyH FCfHuZjzTpR+h1Kh4G4+D9MY2xLx8ORVyg18OhTjqjwcgz5UGnuO9JfghzEXE7aD GDdmEBOWC6SdUTrLHW9ddG4zMGZjr2f/LqhFSdD8RwjcWRXmWayQezfaz0h/t1Gy dRuoKat+8QLGBhbJVOxB49QpXJqqgSNCdoKI68YjlvcGSUKISh+QEuRDuAd+HwID AQABo4ICaTCCAmUwDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQGCCsGAQUFBwMB BggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBRVD4UZ5fdoqQLg4E9V sbPxcVv0vzAfBgNVHSMEGDAWgBSoSmpjBH3duubRObemRWXv86jsoTBvBggrBgEF BQcBAQRjMGEwLgYIKwYBBQUHMAGGImh0dHA6Ly9vY3NwLmludC14My5sZXRzZW5j cnlwdC5vcmcwLwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0LmludC14My5sZXRzZW5j cnlwdC5vcmcvMB8GA1UdEQQYMBaCFHd3dy5zZGR1LmxlZWRzLmFjLnVrMEwGA1Ud IARFMEMwCAYGZ4EMAQIBMDcGCysGAQQBgt8TAQEBMCgwJgYIKwYBBQUHAgEWGmh0 dHA6Ly9jcHMubGV0c2VuY3J5cHQub3JnMIIBBAYKKwYBBAHWeQIEAgSB9QSB8gDw AHUAsh4FzIuizYogTodm+Su5iiUgZ2va+nDnsklTLe+LkF4AAAFuqBiNfgAABAMA RjBEAiAbQbSKOc8GzJrnf4+J3gFWoajLpZb2rVJcKuVLcw/UDgIgSL1buvdzhvxS l8ZCS07KdsLJp98uG1P1h0o+OKLJwk8AdwDwlaRZ8gDRgkAQLS+TiI6tS/4dR+OZ 4dA0prCoqo6ycwAAAW6oGI9RAAAEAwBIMEYCIQDWDoAattDdIUBKZQmXfiTJzZzp kVpCvEpWYZDvBVtawQIhAP7wJRYTgqt9HwZYxdRZsNcxNOCzqNVKF4Q7LYAmdRoH MA0GCSqGSIb3DQEBCwUAA4IBAQAD6ghOta87bGeLnT1NH8DvlDMrXf8BJHJn3P0/ A7WrtSM9Ao8sJa/jBe6h4sexzHIwlYIjneGfXsKSv7TbKvEMlNKlz3e62jKDlVll s1ghp0JVk+WxZ2Az49vwElf1cijpzTzFm6+bbgpr19hdccSg0DwnKvACT8BMyteB eZvGWYwaO8FsoFup1OvmPGWCRb9hDNzf3vsTRvNCFJuHyV47Q3HcAddWFUCwWCQu kJA7OZY6PnfPC24r9ANdGWGA51PNFXo+zYMc0dEJwfo8JszUcoDXZ9/klVyfTwHg NjCrYOgiMvMe29qeU8B8Trjvf/UXEGIV6QO/Lzlx7IqtFODj -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAxW6mgwLCkkCQK8GXIaBY wgyhj4VaYTPiF4JQKh5FieP8wC+x3GFinY3GpuXUgLBihhxyuxUR1Sx2CLJFVj10 LPABl9JkPjAWlK02qTEfDhFPyMsOljzqoGF8tABKwtELU4k4MkaLkxATopol5WXc OWyHFCfHuZjzTpR+h1Kh4G4+D9MY2xLx8ORVyg18OhTjqjwcgz5UGnuO9JfghzEX E7aDGDdmEBOWC6SdUTrLHW9ddG4zMGZjr2f/LqhFSdD8RwjcWRXmWayQezfaz0h/ t1GydRuoKat+8QLGBhbJVOxB49QpXJqqgSNCdoKI68YjlvcGSUKISh+QEuRDuAd+ 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 336692102542514391771259419319564296272344 . . . . . . . . [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 2019-11-26 13:23:31 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-02-24 13:23:31 +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 'www.sddu.leeds.ac.uk' . . . . . . . . [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 24923509842203513085990179876015436399540712921949165798400015315943518572064982342326384332935371659520318113617292292009617070744306749148486196588505413311598026772414865317194618530718411264368853756156521272034159511754794413856050734545066915374430570606758736575521270175006312662191732732475351535809626300068754767864350643550779762473166978216009438212019462228176174864402589897530797983211982914253877600613122509823913904259093265022352404740092148880386198903230744620273232209200127046808951321178220190717177317642703565816787062138751228610052881715107532143493136600544928878604770232717192863383071 . . . . . . . . . . . . . . . . . . . . [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) 550f8519e5f768a902e0e04f55b1b3f1715bf4bf . . . . . . . . . . . . . . . . [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 (24 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.sddu.leeds.ac.uk' . . . . . . . . . . . . . . . . [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 (245 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes) 00f0007500b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016ea8188d7e000004030046304402201b41b48a39cf06cc9ae77f8f89de0156a1a8cba596f6ad525c2ae54b730fd40e022048bd5bbaf77386fc5297c6424b4eca76c2c9a7df2e1b53f5874a3e38a2c9c24f007700f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb2730000016ea8188f510000040300483046022100d60e801ab6d0dd21404a6509977e24c9cd9ce9915a42bc4a566190ef055b5ac1022100fef025161382ab7d1f0658c5d459b0d73134e0b3a8d54a17843b2d8026751a07 . . . . [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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