libraryanswers.northumbria.ac.uk
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:df:02:f7:d3:ba:e8:6b:a8:d2:f8:9c:e4:76:f9:c0:a6:ab was issued on by Let's Encrypt.
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- Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)
Certificate Subject
CN=libraryanswers.northumbria.ac.uk
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:df:02:f7:d3:ba:e8:6b:a8:d2:f8:9c:e4:76:f9:c0:a6:abSerial Number (int): 337223770866362440499120467500328036640427
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: e2:6c:ff:77:f5:d5:1c:6f:0c:4f:fb:35:a4:e8:5a:c8:ae:34:f3:fb
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 77:18:43:da:4b:da:f2:56:f0:e0:b6:b7:85:85:89:ef:b9:8a:5d:df
Fingerprint (sha256): 1f:1c:58:d1:3d:da:4f:64:3e:18:ee:8d:85:72:6f:fd:50:86:44:82:60:ba:58:15:d4:9a:89:f3:4b:26:40:e4
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate libraryanswers.northumbria.ac.uk
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for libraryanswers.northumbria.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
libraryanswers.northumbria.ac.uk
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Certificate
The complete raw certificate details for libraryanswers.northumbria.ac.uk in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFeDCCBGCgAwIBAgISA98C99O66Guo0vic5Hb5wKarMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTExMDEyMTA2MjBaFw0y MDAxMzAyMTA2MjBaMCsxKTAnBgNVBAMTIGxpYnJhcnlhbnN3ZXJzLm5vcnRodW1i cmlhLmFjLnVrMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAoGQgXiEE gg6kJxXlOmLQz5SfT/amlxBQepfckVf+jfnPBy+SZgUl+d8kV2jicYfAaaW+6tmE pP6eH09nL6u+SaNSwfCWkvhtkJQYkizsrwtMRUVbiMKM72f3Ur/P7erCHHOdZ2Pk q/JP2tY4rAFkUR04kL7Caod77OphMd7npQ6V4RCQu/GtwGvfl1SrQZz4JIPYVR5f BmR5ab+bOgo3cr+Vziv7DP0oW4vCiVCRhOtmkttWQjw4Yu1McuLLqEGuC11R9LcZ B0Q2Nc3tpxGdHKWMrXVFJqv/kJSuWrzGeYc/RMkWMXCGqVsLnByiW42gl+vruJVG bJlhFjijQ9i/XQIDAQABo4ICdTCCAnEwDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQW MBQGCCsGAQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBTi bP939dUcbwxP+zWk6FrIrjTz+zAfBgNVHSMEGDAWgBSoSmpjBH3duubRObemRWXv 86jsoTBvBggrBgEFBQcBAQRjMGEwLgYIKwYBBQUHMAGGImh0dHA6Ly9vY3NwLmlu dC14My5sZXRzZW5jcnlwdC5vcmcwLwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0Lmlu dC14My5sZXRzZW5jcnlwdC5vcmcvMCsGA1UdEQQkMCKCIGxpYnJhcnlhbnN3ZXJz Lm5vcnRodW1icmlhLmFjLnVrMEwGA1UdIARFMEMwCAYGZ4EMAQIBMDcGCysGAQQB gt8TAQEBMCgwJgYIKwYBBQUHAgEWGmh0dHA6Ly9jcHMubGV0c2VuY3J5cHQub3Jn MIIBBAYKKwYBBAHWeQIEAgSB9QSB8gDwAHYA8JWkWfIA0YJAEC0vk4iOrUv+HUfj meHQNKawqKqOsnMAAAFuKQFJYQAABAMARzBFAiEAq0MUJU7Dtpf893UsuU3MWdv8 2stM9oodkcuIuJaqbXwCIG445KQwOZJ0oCliDbY/chJtJYXVeMkZuafMDXkIbzdx AHYAsh4FzIuizYogTodm+Su5iiUgZ2va+nDnsklTLe+LkF4AAAFuKQFJUgAABAMA RzBFAiEA2jD3WzlEgSgpVE5SQRi3U8oK5m+siAJWavZEwVvZgbECIAPBEinCDZjS RbapS1yi2CElFdeqvGZOkpE7vO8sCbkBMA0GCSqGSIb3DQEBCwUAA4IBAQBc4Or/ roK8gqkpyvynewhzJW0zR7vMCFOE+OHN9vGAJ2tpKp5SzmyXIWV8+JaaN2+PN7RE A9JieIX9XTM49Zfy2sWKGz9n2zNegoGK+HIMAXEBkPN8ZoMcAEgtX0bo7if2FabN uR6Kx1uAE8ZvTvXtwOayZF0CkIIUIZScGq/8F6CDwJjkwTX02vqWoOryUO5r3xer dT0f7+umEWIJwhUxuHq372+9V1M3/4Dftfw4Wi7g5WjYtKynyEaPe1kWyl7AYcqk YZ5nK/RbPkDeGe9/GSIWYT6NeZXEVK+tGhEnLSi+AnH0sKkwyuK88MhfSxQ56vUy TE6gggLb9/Us33Rp -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAoGQgXiEEgg6kJxXlOmLQ z5SfT/amlxBQepfckVf+jfnPBy+SZgUl+d8kV2jicYfAaaW+6tmEpP6eH09nL6u+ SaNSwfCWkvhtkJQYkizsrwtMRUVbiMKM72f3Ur/P7erCHHOdZ2Pkq/JP2tY4rAFk UR04kL7Caod77OphMd7npQ6V4RCQu/GtwGvfl1SrQZz4JIPYVR5fBmR5ab+bOgo3 cr+Vziv7DP0oW4vCiVCRhOtmkttWQjw4Yu1McuLLqEGuC11R9LcZB0Q2Nc3tpxGd HKWMrXVFJqv/kJSuWrzGeYc/RMkWMXCGqVsLnByiW42gl+vruJVGbJlhFjijQ9i/ XQIDAQAB -----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 337223770866362440499120467500328036640427 . . . . . . . . [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 2019-11-01 21:06:20 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-01-30 21:06:20 +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 'libraryanswers.northumbria.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 20247502980507147821029119525579495573066005302763595134607629053788729456553805782195101426160083908864076576954636918868126537178653143700907581128870696527713729889924633001552900314275568855133782071487734941031612956639327806191908837596727428521718549571070152950262534142525100550974475086237334627101024145567460508709288312196493885105607179364388770369557907142509131849125645936240313150619307342579528479373798618082051655082470406464679042654460235143445260922984442427852125979266328910065996679463431184738473657412417026317812532899598229738597902713450010596350244596468333874965303472221387098734429 . . . . . . . . . . . . . . . . . . . . [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) e26cff77f5d51c6f0c4ffb35a4e85ac8ae34f3fb . . . . . . . . . . . . . . . . [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 (36 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'libraryanswers.northumbria.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) 00f0007600f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb2730000016e290149610000040300473045022100ab4314254ec3b697fcf7752cb94dcc59dbfcdacb4cf68a1d91cb88b896aa6d7c02206e38e4a430399274a029620db63f72126d2585d578c919b9a7cc0d79086f3771007600b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016e290149520000040300473045022100da30f75b3944812829544e524118b753ca0ae66fac8802566af644c15bd981b1022003c11229c20d98d245b6a94b5ca2d8212515d7aabc664e92913bbcef2c09b901 . . . . [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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