audit.bios.cf.ac.uk
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:c6:ce:b2:06:df:ac:da:05:c4:96:f4:fd:9a:87:b3:30:c3 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=audit.bios.cf.ac.uk
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:c6:ce:b2:06:df:ac:da:05:c4:96:f4:fd:9a:87:b3:30:c3Serial Number (int): 328987511781014900432103122480512449589443
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: c8:8f:cc:cc:6a:48:e0:b2:f7:a3:a8:ee:f6:6d:4c:3b:a3:24:e6:1f
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 51:4d:c8:23:ed:39:cb:36:51:02:71:f9:6a:86:ab:e8:57:a3:b0:fd
Fingerprint (sha256): 07:3b:37:3f:29:90:f3:0d:96:f8:f5:61:88:5e:72:d5:23:63:b8:3d:be:b5:d9:87:0f:23:fa:8b:e4:5a:72:b8
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate audit.bios.cf.ac.uk
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for audit.bios.cf.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
audit.bios.cf.ac.uk
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Certificate
The complete raw certificate details for audit.bios.cf.ac.uk in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFXjCCBEagAwIBAgISA8bOsgbfrNoFxJb0/ZqHszDDMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTAzMDYwMDAyMDdaFw0x OTA2MDQwMDAyMDdaMB4xHDAaBgNVBAMTE2F1ZGl0LmJpb3MuY2YuYWMudWswggEi MA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQDPHDio/bWuSwmhsQ4/ap0nN+i3 riFO1QMk20QBVZyX6c0hRoJCOvZlDOmTuAX//GBVo7LWJMhUjpqNBWM/Aytnw7g3 Vq4MT3vtz5r40CaK0RJIcs6PuISQPnoPlm7t1jNIgq/QT4UoViskyJ1D2lDRZ44F ypA8S5eLSRCaZzeCxTboI1P/y0E2ZMzVDsjrdM/7wKzdsqPAZVODxlju0D/hTsoj LAB3DqFsTIs+fH8lPdnZtAHpRj9f6l5QRDz2FqF+DyR/gf1wyJLhcHf0j+29/IZu NmKdM6QztMWKyfs0tahjXKg+iiF+ZJGOva9Nz9GbK3wSgSmOfg7pIuRetYOrAgMB AAGjggJoMIICZDAOBgNVHQ8BAf8EBAMCBaAwHQYDVR0lBBYwFAYIKwYBBQUHAwEG CCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYDVR0OBBYEFMiPzMxqSOCy96Oo7vZt TDujJOYfMB8GA1UdIwQYMBaAFKhKamMEfd265tE5t6ZFZe/zqOyhMG8GCCsGAQUF BwEBBGMwYTAuBggrBgEFBQcwAYYiaHR0cDovL29jc3AuaW50LXgzLmxldHNlbmNy eXB0Lm9yZzAvBggrBgEFBQcwAoYjaHR0cDovL2NlcnQuaW50LXgzLmxldHNlbmNy eXB0Lm9yZy8wHgYDVR0RBBcwFYITYXVkaXQuYmlvcy5jZi5hYy51azBMBgNVHSAE RTBDMAgGBmeBDAECATA3BgsrBgEEAYLfEwEBATAoMCYGCCsGAQUFBwIBFhpodHRw Oi8vY3BzLmxldHNlbmNyeXB0Lm9yZzCCAQQGCisGAQQB1nkCBAIEgfUEgfIA8AB3 AHR+2oMxrTMQkSGcziVPQnDCv/1eQiAIxjc1eeYQe8xWAAABaVCFmsEAAAQDAEgw RgIhANAvRdKJ/Fk1awkMSUTHHSe/Wr5o29NYmmkWWVuRDL23AiEA+8J1uR3bAbpl GlwyOdwAC8qLUaw+jYBskhYaaqSLCb0AdQBj8tvN6DvMLM8LcoQnV2szpI1hd4+9 daY4scdoVEvYjQAAAWlQhZrhAAAEAwBGMEQCIEhxcJ9Lspz0GnhrtauAyLNkdXhG iylDswNJnnWoPnebAiBrQzniJcd6vEWXoRJObuKCXclCOFl4GFe8kTUrhU9SgzAN BgkqhkiG9w0BAQsFAAOCAQEAbtpHwFsJbBdl3UV+6tu66E9RYiOB+loye4LTTYt/ UgQ0st4lg03v14sSQWArvN1UD2ueU6LTbrF2rFRk1YTVtwAuU9JX2nEBxQrmS7/z pRwkAGqdWTfQO+8Ejc/RUtCwveYa5X9bFJRchZPzRqLFWw2G3+vmvIvm04xxO0P4 5WoVQ/4fSeUuXBO3TQxtTm5VXs5BZWhJQGTvSy3bt5xtzRnnjTsQMkGXNTq5rjkx 0CSKQmc2JCiOxqAelPgQvVhUoER/MIw5u8rJgCMxpp7xOwXUy8xmdyaS6HQxOuO+ k+AxsAt6yuRHrls3ZL0aoCWc7HAk+B6TYvVPQQY6eG4qqw== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAzxw4qP21rksJobEOP2qd Jzfot64hTtUDJNtEAVWcl+nNIUaCQjr2ZQzpk7gF//xgVaOy1iTIVI6ajQVjPwMr Z8O4N1auDE977c+a+NAmitESSHLOj7iEkD56D5Zu7dYzSIKv0E+FKFYrJMidQ9pQ 0WeOBcqQPEuXi0kQmmc3gsU26CNT/8tBNmTM1Q7I63TP+8Cs3bKjwGVTg8ZY7tA/ 4U7KIywAdw6hbEyLPnx/JT3Z2bQB6UY/X+peUEQ89hahfg8kf4H9cMiS4XB39I/t vfyGbjZinTOkM7TFisn7NLWoY1yoPoohfmSRjr2vTc/Rmyt8EoEpjn4O6SLkXrWD qwIDAQAB -----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 328987511781014900432103122480512449589443 . . . . . . . . [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 2019-03-06 00:02:07 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-06-04 00:02:07 +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 'audit.bios.cf.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 26145245583779632956413964680823448802732769474819707477870554494664627260838998979497550761178531561880247618809012719137059251481144341149857575406176354882952666464860798289742440899710984118703023258601967228267960430363926716784808866922392267540876907296603671994058046845936190651482970749657282737364334328531465045129409208445506051909083835956873161061575580273496713007573138914788852090800175852325724358078685664303487445149556015568791541639084600467503333160727392193281776689087855033519984971960647674684374891345870423609150307418747080404931843189095250088198999860480236121944469680151737406948267 . . . . . . . . . . . . . . . . . . . . [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) c88fcccc6a48e0b2f7a3a8eef66d4c3ba324e61f . . . . . . . . . . . . . . . . [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 (23 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'audit.bios.cf.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) 00f0007700747eda8331ad331091219cce254f4270c2bffd5e422008c6373579e6107bcc560000016950859ac10000040300483046022100d02f45d289fc59356b090c4944c71d27bf5abe68dbd3589a6916595b910cbdb7022100fbc275b91ddb01ba651a5c3239dc000bca8b51ac3e8d806c92161a6aa48b09bd00750063f2dbcde83bcc2ccf0b728427576b33a48d61778fbd75a638b1c768544bd88d0000016950859ae1000004030046304402204871709f4bb29cf41a786bb5ab80c8b3647578468b2943b303499e75a83e779b02206b4339e225c77abc4597a1124e6ee2825dc9423859781857bc91352b854f5283 . . . . [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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