colourandtextilescience.leeds.ac.uk
Issued by Let's Encrypt Authority X3
About this certificate
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Certificate Subject
CN=colourandtextilescience.leeds.ac.uk
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:7b:4b:2f:bf:0f:84:58:6e:05:29:53:2a:70:62:50:e8:65Serial Number (int): 303291528939362006434740185965291493189733
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 75:14:27:d9:f1:e3:b2:c3:04:f3:8d:df:47:a8:fd:d7:69:8c:9c:a7
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): b5:b8:0a:aa:f1:77:50:a2:66:71:13:ac:f9:64:b2:91:a0:22:b2:8d
Fingerprint (sha256): 03:44:1c:45:80:e6:4e:c4:2e:91:0f:67:53:c6:1b:44:ff:d3:54:b8:8b:16:08:f3:ff:22:02:ca:88:b0:97:64
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate colourandtextilescience.leeds.ac.uk
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for colourandtextilescience.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
colourandtextilescience.leeds.ac.uk
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Certificate
The complete raw certificate details for colourandtextilescience.leeds.ac.uk in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFfDCCBGSgAwIBAgISA3tLL78PhFhuBSlTKnBiUOhlMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTA1MjYxMzIzMTdaFw0x OTA4MjQxMzIzMTdaMC4xLDAqBgNVBAMTI2NvbG91cmFuZHRleHRpbGVzY2llbmNl LmxlZWRzLmFjLnVrMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA7+qT H3ZbS9xhso7A9s6B5u/9cEaJja+hnFSFvbfVir0hUNSQp9yGV0WVYBd4JysyeolZ ulDEBzv+Gdwekf2fzTY7PhVKEWATwcR+qXynDRwb076T2TYvi10VXXObR6CZGcoz zXOpqkLaTc5epedqe667YnTKgSlIrZraZ92xpzFk2U4ABPSTKom1VDaKJA1/TcE9 QoKA50R5nutCSa58ab1kOqGosPw5+QE0sMw8iGB5WU+iI8ielW/PTqBGAMaq9xH5 QJ6Dj3O8+DI5qwYfPK/MUjl1hBx4JeDf3kTK+CVN1cbCGxBdfwb4DVArohi/qwxr EZeWcxi5DAoKg4lZEwIDAQABo4ICdjCCAnIwDgYDVR0PAQH/BAQDAgWgMB0GA1Ud JQQWMBQGCCsGAQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQW BBR1FCfZ8eOywwTzjd9HqP3XaYycpzAfBgNVHSMEGDAWgBSoSmpjBH3duubRObem RWXv86jsoTBvBggrBgEFBQcBAQRjMGEwLgYIKwYBBQUHMAGGImh0dHA6Ly9vY3Nw LmludC14My5sZXRzZW5jcnlwdC5vcmcwLwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0 LmludC14My5sZXRzZW5jcnlwdC5vcmcvMC4GA1UdEQQnMCWCI2NvbG91cmFuZHRl eHRpbGVzY2llbmNlLmxlZWRzLmFjLnVrMEwGA1UdIARFMEMwCAYGZ4EMAQIBMDcG CysGAQQBgt8TAQEBMCgwJgYIKwYBBQUHAgEWGmh0dHA6Ly9jcHMubGV0c2VuY3J5 cHQub3JnMIIBAgYKKwYBBAHWeQIEAgSB8wSB8ADuAHUAdH7agzGtMxCRIZzOJU9C cMK//V5CIAjGNzV55hB7zFYAAAFq9IY2PQAABAMARjBEAiAl0Kpv3e9AMgVExRT/ wqJvBdnlYMVB9MTJ/lIOb6zQ0wIgH3d7QLuOzDcJY2RdRlI6qVbHCg1SrKD4GFB3 nSaYuWsAdQApPFGWVMg5ZbqqUPxYB9S3b79Yeily3KTDDPTlRUf0eAAAAWr0hjYs AAAEAwBGMEQCIEoAmv8xvJNJOKm3lEvMmT4z2tFxX/32RhxO3+fYhsxwAiBT+8Yo V+TIVuFJnmGz9VcGN6Z7U1KnjabjkoFgYbkhsDANBgkqhkiG9w0BAQsFAAOCAQEA VXdk74UDgnJb4pURs6KH7qRu22oghlPMAjhxysq/29aoXY2tYeV5WR5JYfdm/2gX Meryh82IUooUW20uKjfgEMSP21yw/IioHhy0H8W+ns70EVaojn1RlYsZ26EVlO7f u6j75lFwrNeOkdDyfxu2+Ei8tkVRsJJx3VxiTSK+bN+51wKpfHC7djfFdlXM1MhQ wy2jO7OIjBn2ZFKg60I1eotbUuIOkONMD3S2wHEWhp8Z4mAng6o1sswQzbi4yP16 zxxrVBBPX9hyf9zVx3LBmKRJ0bWwmg5Sc2aROd35eyBjsN8boLL2/RBE/SCeR3E1 wdN/Dl2MKH29xwUM8t9bwQ== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA7+qTH3ZbS9xhso7A9s6B 5u/9cEaJja+hnFSFvbfVir0hUNSQp9yGV0WVYBd4JysyeolZulDEBzv+Gdwekf2f zTY7PhVKEWATwcR+qXynDRwb076T2TYvi10VXXObR6CZGcozzXOpqkLaTc5epedq e667YnTKgSlIrZraZ92xpzFk2U4ABPSTKom1VDaKJA1/TcE9QoKA50R5nutCSa58 ab1kOqGosPw5+QE0sMw8iGB5WU+iI8ielW/PTqBGAMaq9xH5QJ6Dj3O8+DI5qwYf PK/MUjl1hBx4JeDf3kTK+CVN1cbCGxBdfwb4DVArohi/qwxrEZeWcxi5DAoKg4lZ EwIDAQAB -----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 303291528939362006434740185965291493189733 . . . . . . . . [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 2019-05-26 13:23:17 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-08-24 13:23:17 +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 'colourandtextilescience.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 30286627982074934400247014823566499665432160070441265058577495553415640130814067436572917432518171097466775168971496997250092739170876433617663186782297369417006295899043991291825773427499028803191150728425389852445472472722888520559889436274733723002941131102264988854164078979660986350955117951171389959887432306676602402715959227741343471527143207806757282349256669045331069293775274258202104798854195953774562142732921128224626005405721136425189940207243768067095275138320738478646558402189355216512720868662813526012112529268535543785024211424213299793222620521230532432766764564961013227182842473693291223800083 . . . . . . . . . . . . . . . . . . . . [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) 751427d9f1e3b2c304f38ddf47a8fdd7698c9ca7 . . . . . . . . . . . . . . . . [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 (39 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'colourandtextilescience.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 (243 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (240 bytes) 00ee007500747eda8331ad331091219cce254f4270c2bffd5e422008c6373579e6107bcc560000016af486363d0000040300463044022025d0aa6fddef40320544c514ffc2a26f05d9e560c541f4c4c9fe520e6facd0d302201f777b40bb8ecc370963645d46523aa956c70a0d52aca0f81850779d2698b96b007500293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016af486362c000004030046304402204a009aff31bc934938a9b7944bcc993e33dad1715ffdf6461c4edfe7d886cc70022053fbc62857e4c856e1499e61b3f5570637a67b5352a78da6e392816061b921b0 . . . . [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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