rig.cl.cam.ac.uk

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:07:19:a2:29:e6:18:e0:e8:c5:3a:55:3a:6f:4d:77:76:f5 was issued on by Let's Encrypt.

With 3 subject alternative names this certificate can be used to secure multiple fqdn's. 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=rig.cl.cam.ac.uk

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:07:19:a2:29:e6:18:e0:e8:c5:3a:55:3a:6f:4d:77:76:f5
Serial Number (int): 263752907065521985389859564801825053308661
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: ec:6e:d8:62:28:75:22:84:6a:3c:d3:c3:07:00:6b:4d:8a:c7:14:7d
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 36:66:0f:dc:75:0a:35:d6:48:16:f7:0d:9f:a1:6e:b1:c0:51:7b:7b
Fingerprint (sha256): 0f:13:5c:4e:08:c9:23:99:a7:3a:3e:a7:e0:31:cc:8e:88:d2:c1:56:36:9f:16:28:80:c7:45:90:8f:c7:e5:95

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 rig.cl.cam.ac.uk

3

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for rig.cl.cam.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

nagios.malc.org.uk
rig.cl.cam.ac.uk
rig.malc.org.uk

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Certificate

The complete raw certificate details for rig.cl.cam.ac.uk in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA1r6Sz9LCpTHsPVqo21Yy
NcBD1JY7jvJ1cGYWtFOxdf09HanU5WIjuPNK5JalMrH8g95XNtha9bghmlhyyoi8
e2TlvS/E448233+5FUy+Dt72ohSlzdPjkmY7zVF1ORMu+0b11O7ett1RnkrEcBMF
qT3HwXY8yCP5GlZmyFEAuQkE+Nc6d+92tZChMzyi8C5Go731TDxdanCCNQzD3JaF
o2qDdyMzYQgRq9yPlAj7//o51rhmLT8QOBz1Q+Fng5Y9VePQCevQBR0iSV9z+ZXv
6QzrCKNuUEmLXrjAUFtmvizmmsYYd73OSggA9Uwnf2m6SxIsekyY58XJhXTAVtmh
WQIDAQAB
-----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 263752907065521985389859564801825053308661
 . . . . . . . . [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 2019-08-28 05:55:55 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-11-26 05:55:55 +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 'rig.cl.cam.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 27108972550022224778898602607466641789943025166501729268002027895791474552421309999062338240451814193240856541365642654956877159960163751095384016559237018429577856605425217313862968448726044648249427414278728722353929614264666435717795168716798551420737979827130484311196349850836630980002233242194846651580191222539161292495065361397471291853059856072443860548932960060414984792027496642456068202046784212394449757306898328784930522180634057755379398304150793255971920012921624042530931181481387999646089257775807329748762498075170112647693089299591761659923506534921195937337836045071551649967041557763077520859481
 . . . . . . . . . . . . . . . . . . . . [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)
							ec6ed862287522846a3cd3c307006b4d8ac7147d
 . . . . . . . . . . . . . . . . [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 (57 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'nagios.malc.org.uk'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'rig.cl.cam.ac.uk'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'rig.malc.org.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)
							00f1007600747eda8331ad331091219cce254f4270c2bffd5e422008c6373579e6107bcc560000016cd7026c750000040300473045022006303012c49ad7f70cc6e11d95f0cd78be6363fc050f380c06a5f589283485d0022100fb0f07c4fcf8be1b9fd961c4382d1bfae301bf4e80645b1a532fb5f0a0906f7b00770063f2dbcde83bcc2ccf0b728427576b33a48d61778fbd75a638b1c768544bd88d0000016cd7026c8d0000040300483046022100acfe71a029c634d4af3efbdb6efa379dd0d4f5c84ccd933953d67108b7822ffd022100ed43bb457b67e2d4f83892b057e24b9514561b3655f6dd1846f1836b21e9f293
 . . . . [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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