fia.libf.ac.uk

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:c1:68:a2:c5:86:2b:0d:2d:8d:1d:ca:9d:f1:44:9b:c1:29 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=fia.libf.ac.uk

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:c1:68:a2:c5:86:2b:0d:2d:8d:1d:ca:9d:f1:44:9b:c1:29
Serial Number (int): 327150439480939166764018912545240610750761
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 39:0c:39:5a:b2:04:c3:77:15:f6:17:0e:57:c4:b4:76:db:8c:7a:5c
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 21:0c:55:f2:e1:a1:ae:08:af:20:4d:c0:3e:ed:ae:f9:b0:fa:19:8b
Fingerprint (sha256): 94:dc:cc:c9:c9:b6:6e:6e:12:3e:02:72:cb:11:9b:f1:e6:50:af:e3:26:d1:07:01:bd:f2:b2:1f:b1:30:cf:96

Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/

Revocation information

OCSP Server: http://ocsp.int-x3.letsencrypt.org

Check the revocation status for certificate fia.libf.ac.uk

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for fia.libf.ac.uk

Public Key Algorithm

RSA

Key Size

4096

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

fia.libf.ac.uk

Other certificates including the domain name libf.ac.uk

(limited to 100 certificates)

Certificate

The complete raw certificate details for fia.libf.ac.uk in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----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-----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 327150439480939166764018912545240610750761
 . . . . . . . . [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 2019-06-06 10:38:47 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-09-04 10:38:47 +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 'fia.libf.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 (4208 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 761804377361391838160114820661207737530406183123099563823407556665948125057802381632662988336088323654009917096631652092974846422834597852020920076026373467092483413059641714173239992434644764708815178733631339318314806155959584293214222043094690288966577787889376827166227551938246175918102729068916297640379429455806458168455860906040777295354058679387113385568501119292659277348106398706830225432506642967229695352478702338662813016906981402044335458744410553474570480632394904482986929104631949855249640300517418557807791527116893563512965779966034313177701072784753980572272609282747171784350337672798441410664067366975864115716106702928852263462040970876582218154785878170961231792094384811381368805418782416137873613459632135659231124302438186156622498902170398666041755191496788115794219825551417846920291836005932574600655531525879939591942108465849216248862628295379657294640955554652676565663800909926064948447432075797132936624798142379512240270287911560935644278436573874654913159597954395289567586868513658627537922626569124191490767897521995773387921033651371768118701526505008271091133915473738331145690844883346172004345556159245845061033224471701570108304724586517236728575934073501835079040185041763935220095809093
 . . . . . . . . . . . . . . . . . . . . [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)
							390c395ab204c37715f6170e57c4b476db8c7a5c
 . . . . . . . . . . . . . . . . [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 (18 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'fia.libf.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)
							00f0007600e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe0000016b2c958ea50000040300473045022100efb9c8919b785bbc64b79a97b3459a50c42d7ca0a123b1ad0fcb1e7aa99b015d02206a3a2d7e2cbd1c8ddc3aae5be096d487304a87c4ef3380ba2bde5c5bdafa64bd007600293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016b2c958e96000004030047304502203cf02de92196bd570f680a4100cb7c015bcce2878bc19982a8335d292e18db9102210099e6d148918556ec9a6762ae48dd56e06c3b34759ef9539a4a46f6d0022f4830
 . . . . [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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