skrinkle.bios.cf.ac.uk
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 04:80:1b:14:bf:98:24:80:7f:64:3d:ad:9e:1e:23:cf:15:eb 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=skrinkle.bios.cf.ac.uk
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 04:80:1b:14:bf:98:24:80:7f:64:3d:ad:9e:1e:23:cf:15:ebSerial Number (int): 392041283580738685139013892659178732721643
Serial Number lenght: 139 bits, 18 octets
SubjectKeyId: 6d:51:cc:12:5f:03:20:d4:6f:f7:66:45:83:97:bb:d1:c5:71:73:af
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 75:1c:26:07:31:3f:43:6c:2a:6b:51:13:8b:44:4a:17:a6:c1:99:f8
Fingerprint (sha256): 12:a1:ed:60:fe:33:d9:70:58:85:69:88:95:ef:e5:13:59:e9:25:05:67:97:25:e9:84:bc:9f:41:bf:81:1f:9d
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate skrinkle.bios.cf.ac.uk
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for skrinkle.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
skrinkle.bios.cf.ac.uk
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gitlab.cs.cf.ac.uk
s-vm6.cs.cf.ac.uk
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Certificate
The complete raw certificate details for skrinkle.bios.cf.ac.uk in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFZTCCBE2gAwIBAgISBIAbFL+YJIB/ZD2tnh4jzxXrMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTAzMjcwNzQ4NTRaFw0x OTA2MjUwNzQ4NTRaMCExHzAdBgNVBAMTFnNrcmlua2xlLmJpb3MuY2YuYWMudWsw ggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQC+V4qHqQ9eg8XTUPH83hsq XBgNmqH+30sXqsEd4vcxtxQjEChyJwixdYWigFQ3GaOXI2GsJxMS0W47ZjjoOY91 W2dIKIAYLJXq/8s9LQ9cmqJkG2XI8C6f1/T3nyesMTHYCCzamkvXvL7sQuU6PTpe GDznfCovzPqd6QXfXm10c2jihxkNTnS/pDMAlg3PGRgMjZxeqndfUQQv+Mi4oCp+ SFMmg8aRWNp9ZgX4y/hn+a4xaAs1jACdRNJnAlKhpVeN8hNBZasDeMzCG4Yl3xtb cOLvfieLZVOgNl8QbJNzlILBZPiiffqtxiLQPVwHutBwqgx8mhl1vn5Aqvpvwnzd AgMBAAGjggJsMIICaDAOBgNVHQ8BAf8EBAMCBaAwHQYDVR0lBBYwFAYIKwYBBQUH AwEGCCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYDVR0OBBYEFG1RzBJfAyDUb/dm RYOXu9HFcXOvMB8GA1UdIwQYMBaAFKhKamMEfd265tE5t6ZFZe/zqOyhMG8GCCsG AQUFBwEBBGMwYTAuBggrBgEFBQcwAYYiaHR0cDovL29jc3AuaW50LXgzLmxldHNl bmNyeXB0Lm9yZzAvBggrBgEFBQcwAoYjaHR0cDovL2NlcnQuaW50LXgzLmxldHNl bmNyeXB0Lm9yZy8wIQYDVR0RBBowGIIWc2tyaW5rbGUuYmlvcy5jZi5hYy51azBM BgNVHSAERTBDMAgGBmeBDAECATA3BgsrBgEEAYLfEwEBATAoMCYGCCsGAQUFBwIB FhpodHRwOi8vY3BzLmxldHNlbmNyeXB0Lm9yZzCCAQUGCisGAQQB1nkCBAIEgfYE gfMA8QB2AG9Tdqwx8DEZ2JkApFEV/3cVHBHZAsEAKQaNsgiaN9kTAAABab5WhHkA AAQDAEcwRQIhALUnUkdCq56mvhrqcrMrhc8lAR7Txy2LOkifcpIyDCz+AiB2od3i 9fA9OwfYfe9fW1Iu/ph4zSySDbQVdKKb+GM5/wB3ACk8UZZUyDlluqpQ/FgH1Ldv v1h6KXLcpMMM9OVFR/R4AAABab5WhEAAAAQDAEgwRgIhAK+Z7M7xhXUg2yUqOM9G jwQtZnVegLs8qRcM3kUV5rRAAiEAzU5o7iD8k8Vie9K4Aro8cif1KTmGgToK+S2h kHHDuiswDQYJKoZIhvcNAQELBQADggEBAGMjMMBr6aTGanVv5qJmjIVI8WIPT7Iv 9S33AeuPTtV/3mk5WZ94kN4R6E4zO9vMpz6gk/O4hFpX6bhcb9FunlO3COnZdXZn Z+i7HsLfKngC2+N6m5njwtEnF138kDHqyeenQESneDOeFSWvsY6wbJvVO6/QCsFw Dexpr6KKEjkmyLoiD593/1gFJa26hJq+z6rnhtqPAWm344uprkN3vRwTZpYMXqB6 zlTT3q0s77GsOv2Ja0BiTF+T7UgYAad+6ZSs0JCnBYsKLa5IaOC1ZqQOJBG6lsrv 4OGq/P1cxLimyzibLXDR5eIJ2wbN5WsDBuG0LU+ph+ht4a6/VY8DmF0= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvleKh6kPXoPF01Dx/N4b KlwYDZqh/t9LF6rBHeL3MbcUIxAocicIsXWFooBUNxmjlyNhrCcTEtFuO2Y46DmP dVtnSCiAGCyV6v/LPS0PXJqiZBtlyPAun9f0958nrDEx2Ags2ppL17y+7ELlOj06 Xhg853wqL8z6nekF315tdHNo4ocZDU50v6QzAJYNzxkYDI2cXqp3X1EEL/jIuKAq fkhTJoPGkVjafWYF+Mv4Z/muMWgLNYwAnUTSZwJSoaVXjfITQWWrA3jMwhuGJd8b W3Di734ni2VToDZfEGyTc5SCwWT4on36rcYi0D1cB7rQcKoMfJoZdb5+QKr6b8J8 3QIDAQAB -----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 392041283580738685139013892659178732721643 . . . . . . . . [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 2019-03-27 07:48:54 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-06-25 07:48:54 +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 'skrinkle.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 24028446084892100934522927913026542811805770557186109070303058784534223368960733439049123849874963481553492072492603974953983133083738165954565197886279923088577411307522174200763591529607707807902402976238753376359122069886779182539348406604811137757089438600049478245763268579362276562964259611375263887945616578304784342479168438481738250758841854416280560000606239795613142824542628750832463015213012378438292266450701721168309628764689260661951822219508825405417874946130385296111507246542165000948493095133699406678058868192325341119479673459472623803835698083645915517807774229666663654170622109046304411909341 . . . . . . . . . . . . . . . . . . . . [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) 6d51cc125f0320d46ff766458397bbd1c57173af . . . . . . . . . . . . . . . . [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 (26 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'skrinkle.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 (246 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes) 00f10076006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d91300000169be5684790000040300473045022100b527524742ab9ea6be1aea72b32b85cf25011ed3c72d8b3a489f7292320c2cfe022076a1dde2f5f03d3b07d87def5f5b522efe9878cd2c920db41574a29bf86339ff007700293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f47800000169be5684400000040300483046022100af99eccef1857520db252a38cf468f042d66755e80bb3ca9170cde4515e6b440022100cd4e68ee20fc93c5627bd2b802ba3c7227f5293986813a0af92da19071c3ba2b . . . . [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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