fia.libf.ac.uk

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:d0:ad:ff:51:90:98:c0:2f:ca:2d:21:c5:1a:fb:2f:d8:50 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:d0:ad:ff:51:90:98:c0:2f:ca:2d:21:c5:1a:fb:2f:d8:50
Serial Number (int): 332346872248136964526081549258731885156432
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 8e:1a:14:0c:dc:e2:8f:ec:de:f4:6d:e5:e5:2f:49:59:ec:23:34:71
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): d9:e5:db:14:e0:9f:97:ee:8f:54:df:51:9b:2b:c1:c0:7f:45:2e:c6
Fingerprint (sha256): ef:a3:3c:1f:77:40:5a:99:16:bf:1a:1a:f9:e9:2a:81:f2:a0:01:c2:04:f1:19:a6:27:b3:16:80:96:cb:25:2f

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 332346872248136964526081549258731885156432
 . . . . . . . . [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 2020-02-01 18:40:35 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-05-01 18:40:35 +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 765917814864135962647031624644060145647377921918413310944718341583236692133987864273092504235466003075553889547775423548119546496464702258422241309445455518343794429339416205794336581609395588654601498826181422409566959954278855892565627323977431982757002910604450608507803641851895816136994530600959950721662000486248932527995774491315385090263650989796797736612922162711511884980720475057583652145094415059176897980775743113095494251466703385910591840309474671481763537517509547008907989686106443222375529288453260795410886941508601002591163035492639642179587554867154942585470213704557468986367076187621867247928287221003727138125810364728036313614222088296011720826368223335723207019639387366799031584800741115241600416127401419434797022375495145153038096244653864394089985501842890691412652249140486999098279937105638887158855351029879795544781001932642579914732145013932701774036187319958446101627627298992707008776665246671595040328581956872934279779855000160744655722501169070879129868179504234778922939258673903699893235949865218122156727816406567058189901422064524379739553298987583162191953874300207750047235288061828218869639944867939927264265574085625057700299653272819447790414261428998610201781237610527018244035750133
 . . . . . . . . . . . . . . . . . . . . [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)
							8e1a140cdce28fecdef46de5e52f4959ec233471
 . . . . . . . . . . . . . . . . [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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f1007700f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb273000001700244ea240000040300483046022100c6eebda6d4a4324a81c5894f67f1fc0c801e5eb1acff1e3d27131deaa622a1ec022100897a11d996b1364bbddb05496e17f6fedb6c4e681a34ef5f425ca84efbab60dc00760007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c000001700244ea4b000004030047304502202b4f122b9d20e9398f3042f42462ffa57e2e56c5c8a3184286cfef98e6f211f2022100debb7d528384f9f770b715273a98d0d1ec7c358036bd28842ac39704de81d07c
 . . . . [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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