media.imperial.ac.uk

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:3d:a8:64:bf:bb:34:c1:b6:60:ee:ef:3a:96:36:42:6c:b1 was issued on by Let's Encrypt.

With 6 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=media.imperial.ac.uk

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:3d:a8:64:bf:bb:34:c1:b6:60:ee:ef:3a:96:36:42:6c:b1
Serial Number (int): 282317915599207933652637424225286824815793
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 34:69:48:89:c7:6d:c6:9f:cf:96:ff:ea:4d:c0:cf:0c:86:52:62:d3
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 0b:9f:6f:c0:3b:f6:ec:8e:4a:23:e8:2f:76:6e:6c:76:e4:dd:25:92
Fingerprint (sha256): 09:47:f8:bc:c4:e7:82:6b:40:73:54:51:c0:99:76:a9:55:8b:97:17:8d:cb:fb:9e:60:23:73:4a:b9:59:0e:52

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 media.imperial.ac.uk

6

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for media.imperial.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

helix.imperial.ac.uk
hml.imperial.ac.uk
hmlupload.imperial.ac.uk
media.imperial.ac.uk
mediaupload.imperial.ac.uk
wowza.imperial.ac.uk

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Certificate

The complete raw certificate details for media.imperial.ac.uk in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA3q5AK4/qwVFuPidUkGth
S1bEdqZks7o8QEKzrV2pSZ32nSAizySFQB0ibaLrniM3vcU+xp2v1I7IPXdUPw98
7+5Y2CcJqNup/H9T9QSMlhBluM3gpOwSr21/XTP6jx8B8xfXWvsS+Fe/JSU3aYNX
TCOmWZW+SBSpqPjcsesaRO4JA/rpzVpj+JlmicStSHGi+WTVVilj/0+SWVX4umJP
FSRGzrE48PIfhp+y14a9H/8QDY2dcp1VICVEu4dzHj1J/uRbHnMtpxm1bf0tVHKP
k65TwHfAbFwdClMAu5xxPkErvv9rMUcy5W4nQf8O0hpvOg9jgIl/YpaPnmPi7GKt
YwIDAQAB
-----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 282317915599207933652637424225286824815793
 . . . . . . . . [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 2020-04-01 09:27:23 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-06-30 09:27:23 +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 'media.imperial.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 28110829907745096294136420228181938450130607823709885665901378698204548867990909072092872430119758139760023652610444495280666757100093487296541062335906680846347653572769636860030816523685720955284052487542350630330348285034269194800925733655235080349568712806432052825557879533257983890183696721360199936155542503583783680357757961696877492283422559015492666411653317514865654044779247157799662768859087181216430163901312751561230433448791651690295663669636443045766116939738450607824768719833543069724902075262394616876028599287545368016523019251878322061873637579880325073933675448181907541554252718252740671876451
 . . . . . . . . . . . . . . . . . . . . [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)
							34694889c76dc69fcf96ffea4dc0cf0c865262d3
 . . . . . . . . . . . . . . . . [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 (143 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'helix.imperial.ac.uk'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'hml.imperial.ac.uk'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'hmlupload.imperial.ac.uk'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'media.imperial.ac.uk'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mediaupload.imperial.ac.uk'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'wowza.imperial.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)
							00f0007600b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e000001713548011b000004030047304502202816ef8d011b70189e2c78918217197842ffc8bdbfccc32fb027ff03ffbd6d68022100cb86acac0d9c476195ec269cfcb9d9715b247a54ea2c0b164a0eb2f82ac089bb0076006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d9130000017135480134000004030047304502210089d704d0827240761845f502fd85c3f58bdbbadab79d773f5c80260d9a1929610220529346910051f2b82d7012a1cdf96117d74febd28002616bb2f5d363de87b82f
 . . . . [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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