parametersandpractice.leeds.ac.uk
Issued by Let's Encrypt Authority X3
About this certificate
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Certificate Subject
CN=parametersandpractice.leeds.ac.uk
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 04:56:4c:1e:e5:20:1b:35:c3:c0:df:c6:b2:43:6f:0d:87:daSerial Number (int): 377814609026042625624957325073101269862362
Serial Number lenght: 139 bits, 18 octets
SubjectKeyId: 41:77:a3:3a:60:e3:17:36:0a:c5:18:a9:7f:a7:bd:c5:e6:07:dc:14
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): d2:c4:f7:d4:8b:4e:33:3d:ea:d2:a2:49:b4:49:6e:0e:26:68:d7:91
Fingerprint (sha256): 04:a4:a2:c7:21:aa:97:3e:93:62:07:e3:66:f3:31:25:71:7b:d6:40:6a:8c:c2:06:14:1e:d4:c5:47:16:15:7a
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate parametersandpractice.leeds.ac.uk
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for parametersandpractice.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
parametersandpractice.leeds.ac.uk
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Certificate
The complete raw certificate details for parametersandpractice.leeds.ac.uk in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFejCCBGKgAwIBAgISBFZMHuUgGzXDwN/GskNvDYfaMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xODEyMjkwODM2MjlaFw0x OTAzMjkwODM2MjlaMCwxKjAoBgNVBAMTIXBhcmFtZXRlcnNhbmRwcmFjdGljZS5s ZWVkcy5hYy51azCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAPZv6dVU Xt9wBOYrJ2Y1RY/FqCYk36qVgDVq6qWfTjL+dVGTXd8Z/deJGzsMdwI+kWW8ORr0 Jg4iAQDIByilnMeCXy84+M0EICd4haRVrVOMIAmh/+zdq8I+a5ub1MTjtJmF26Qy GSFTZK9xbjJqe2TD2+ppMOLMNFvpwQ2C7fNhoyrPWJFquBxdRw9z+uJU33QKUOSX 6XBmw7ktgQwf0II/T+mr0iMgY+f1j6ZOWJBDmkDMXbyMZaBzWvZQBbqb7UY3KNwg gfHY353kaAlDgI1O4GD2XVopKN9vlePJe2e2oV19xDpmiRSao5shmEU0p+bLRN7z PCifMnrOfla8V6ECAwEAAaOCAnYwggJyMA4GA1UdDwEB/wQEAwIFoDAdBgNVHSUE FjAUBggrBgEFBQcDAQYIKwYBBQUHAwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4EFgQU QXejOmDjFzYKxRipf6e9xeYH3BQwHwYDVR0jBBgwFoAUqEpqYwR93brm0Tm3pkVl 7/Oo7KEwbwYIKwYBBQUHAQEEYzBhMC4GCCsGAQUFBzABhiJodHRwOi8vb2NzcC5p bnQteDMubGV0c2VuY3J5cHQub3JnMC8GCCsGAQUFBzAChiNodHRwOi8vY2VydC5p bnQteDMubGV0c2VuY3J5cHQub3JnLzAsBgNVHREEJTAjgiFwYXJhbWV0ZXJzYW5k cHJhY3RpY2UubGVlZHMuYWMudWswTAYDVR0gBEUwQzAIBgZngQwBAgEwNwYLKwYB BAGC3xMBAQEwKDAmBggrBgEFBQcCARYaaHR0cDovL2Nwcy5sZXRzZW5jcnlwdC5v cmcwggEEBgorBgEEAdZ5AgQCBIH1BIHyAPAAdgB0ftqDMa0zEJEhnM4lT0Jwwr/9 XkIgCMY3NXnmEHvMVgAAAWf5UnUpAAAEAwBHMEUCIQCYf6QN0hQNTNF5hRa3HULv el0A5JUVZD0ZOtGbXfGRpAIgB8CmcoTAzqTLhetBtW8zPtcj2GfTiqJs2xl97XL6 JZAAdgApPFGWVMg5ZbqqUPxYB9S3b79Yeily3KTDDPTlRUf0eAAAAWf5UnUlAAAE AwBHMEUCIE3b6pIrF/LQvBLSJQNR0QLNMynAigOy/uP3WqTSv3vXAiEAuDLY/xFE hwC9dtbiFm7c/eyToct2V0UMwRQAdyz0SYgwDQYJKoZIhvcNAQELBQADggEBAH4y 4VExma++7A698yZ3SoSP6hx4Gu6HxxE6CKPjCRYwJhuVi7pVqo9v3mmZJXer+G2g D2rJhwdNiGDWKEB5E9awHUWo5CxLgOsaw507IXOPoynv2+DFEK2B4OqWEvg0WSko vKdEPwYuUKL/UUUrF7fBoGVossz1ZQyRwFYP0NCGxS40VvnJrvSCenhnLrLTY1NR QYJScawNW+X0NMnaJ/AAfGKkjBQFBgq0aDMS51fHwoFhY1A285iM7uOeKOS1/lIW t7pd4jbLLnZbb1veRjReaXCO736JQ7PK41rsSBBPX0JpFfMab+5y6JvfX2Mth/h1 LvzpW5bWHqwZcxKJyV4= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA9m/p1VRe33AE5isnZjVF j8WoJiTfqpWANWrqpZ9OMv51UZNd3xn914kbOwx3Aj6RZbw5GvQmDiIBAMgHKKWc x4JfLzj4zQQgJ3iFpFWtU4wgCaH/7N2rwj5rm5vUxOO0mYXbpDIZIVNkr3FuMmp7 ZMPb6mkw4sw0W+nBDYLt82GjKs9YkWq4HF1HD3P64lTfdApQ5JfpcGbDuS2BDB/Q gj9P6avSIyBj5/WPpk5YkEOaQMxdvIxloHNa9lAFupvtRjco3CCB8djfneRoCUOA jU7gYPZdWiko32+V48l7Z7ahXX3EOmaJFJqjmyGYRTSn5stE3vM8KJ8yes5+VrxX oQIDAQAB -----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 377814609026042625624957325073101269862362 . . . . . . . . [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 2018-12-29 08:36:29 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-03-29 08:36:29 +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 'parametersandpractice.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 31109809581643487792534517529506453132936581176074327443354165438314363069107369720735284996373236207045153675707062971447803658329760397938471223442430707607282448690981165909753180879893087517183831560557046193814140278494701807168407975675994072702728812291338606816853651315081521615365312128225125114462947939257126374020410077610703819950404804682641744949185487736143949210729342715904804518947251285243213903445769666486134152525936382674057641031200872770614647700827372262599912768100924108757622714358102518808600969330342599376140019200455940372840302290895393241007599736462550176892354390789473013880737 . . . . . . . . . . . . . . . . . . . . [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) 4177a33a60e317360ac518a97fa7bdc5e607dc14 . . . . . . . . . . . . . . . . [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 (37 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'parametersandpractice.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) 00f0007600747eda8331ad331091219cce254f4270c2bffd5e422008c6373579e6107bcc5600000167f95275290000040300473045022100987fa40dd2140d4cd1798516b71d42ef7a5d00e49515643d193ad19b5df191a4022007c0a67284c0cea4cb85eb41b56f333ed723d867d38aa26cdb197ded72fa2590007600293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f47800000167f9527525000004030047304502204ddbea922b17f2d0bc12d2250351d102cd3329c08a03b2fee3f75aa4d2bf7bd7022100b832d8ff11448700bd76d6e2166edcfdec93a1cb7657450cc11400772cf44988 . . . . [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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