mailer.brighton.ac.uk
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:c2:2e:e6:96:9b:39:8b:0b:d2:0a:d0:85:75:2f:d6:b2:a1 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=mailer.brighton.ac.uk
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:c2:2e:e6:96:9b:39:8b:0b:d2:0a:d0:85:75:2f:d6:b2:a1Serial Number (int): 327413978748685985471805415346268236329633
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 80:d6:02:bb:9c:c5:6c:de:21:55:dc:b8:c8:97:ad:f3:03:bd:30:39
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 49:df:27:6d:67:e9:a8:04:34:f7:53:04:19:75:0b:f2:d8:d9:83:57
Fingerprint (sha256): 0d:6f:e0:45:7c:9d:a8:2d:6c:4c:8b:72:e9:bd:ec:98:8b:66:cf:f8:a5:7e:60:66:c6:c7:b5:bb:23:1b:89:48
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate mailer.brighton.ac.uk
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for mailer.brighton.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
mailer.brighton.ac.uk
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issd-dev.brighton.ac.uk
socialwork.brighton.ac.uk
peri.brighton.ac.uk
www.brighton.ac.uk
emea-san1.blackboard.com
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shop.brighton.ac.uk
studentcentraltestsupport.brighton.ac.uk
eu-central-1-san1.blackboard.com
authgen.brighton.ac.uk
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tel-krnl-pro01.university.brighton.ac.uk
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evsipr.brighton.ac.uk
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prism.brighton.ac.uk
shs.brighton.ac.uk
arch.brighton.ac.uk
pay.brighton.ac.uk
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peri.brighton.ac.uk
screenarchive.brighton.ac.uk
lyncwsext.brighton.ac.uk
unicard.brighton.ac.uk
dataview.brighton.ac.uk
voicemail.brighton.ac.uk
idp-test.brighton.ac.uk
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emea-san1.blackboard.com
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dataview.brighton.ac.uk
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issd.brighton.ac.uk
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Certificate
The complete raw certificate details for mailer.brighton.ac.uk in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFYzCCBEugAwIBAgISA8Iu5pabOYsL0grQhXUv1rKhMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTA4MTAwNTM4NDFaFw0x OTExMDgwNTM4NDFaMCAxHjAcBgNVBAMTFW1haWxlci5icmlnaHRvbi5hYy51azCC ASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAM7Ig7rvviDnLX0byPH/2xuw tHLedDV284SmyaF2cpoRZvaI9opDEI7Kc4NvO+TuqfSPDY3yygQy85SGqtRruQ+2 AklHEUxnx/CcthpuUEdH8N9G+5VzzKTtLy6NRhdUP5ofaJjcFrUcS5qLO1pH4qnx b3H/2bET8X5s5njZIfEAZIwXQaLh3dRNdD0Au62WGB6/OdPrL3xAH9PEDs1utOUp 0HgWVD/cF4/PAsyrZdXudIc03qTeGKeCG6FZb55/SArzUYefFJoSn3o+Y9FAu6jn 2i1Kdczd/DHn+MSO49vBNgSAsKqb+EGg++7XwNg2vcS3dQ0E+P8F3vIqvvzCVr8C AwEAAaOCAmswggJnMA4GA1UdDwEB/wQEAwIFoDAdBgNVHSUEFjAUBggrBgEFBQcD AQYIKwYBBQUHAwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4EFgQUgNYCu5zFbN4hVdy4 yJet8wO9MDkwHwYDVR0jBBgwFoAUqEpqYwR93brm0Tm3pkVl7/Oo7KEwbwYIKwYB BQUHAQEEYzBhMC4GCCsGAQUFBzABhiJodHRwOi8vb2NzcC5pbnQteDMubGV0c2Vu Y3J5cHQub3JnMC8GCCsGAQUFBzAChiNodHRwOi8vY2VydC5pbnQteDMubGV0c2Vu Y3J5cHQub3JnLzAgBgNVHREEGTAXghVtYWlsZXIuYnJpZ2h0b24uYWMudWswTAYD VR0gBEUwQzAIBgZngQwBAgEwNwYLKwYBBAGC3xMBAQEwKDAmBggrBgEFBQcCARYa aHR0cDovL2Nwcy5sZXRzZW5jcnlwdC5vcmcwggEFBgorBgEEAdZ5AgQCBIH2BIHz APEAdwBvU3asMfAxGdiZAKRRFf93FRwR2QLBACkGjbIImjfZEwAAAWx6QCyJAAAE AwBIMEYCIQCJAssQbDA27fOQWtXrSwgdgBc/DJ+dvKxJmKfYF5ahrAIhAN+pVZ0A r/Ho1Rf/v4L/+grSzuyLxMmp7oyQoeHmtyMdAHYAY/Lbzeg7zCzPC3KEJ1drM6SN YXePvXWmOLHHaFRL2I0AAAFsekAr0gAABAMARzBFAiEAz1KAjulWQYv1Hbj0qYEI VFRSBmM0Qj40L1mxHBJ7/soCIHM3gDki68avPFKjoUKWxY2Og4e5XDiwsiJYcbvD xZzFMA0GCSqGSIb3DQEBCwUAA4IBAQB24rJrViqYmf4rV0HW7cDWTgS92urCD9zw O/GRNA6X3n99XxTwPOqgZoLneLAQdzaxfOLbCzkicEWe8DZ08mQ1O0Of0HWZ+Qb2 IpIhXR4Gj0gepvZD2x0GNNcyg6ER/sylKUEhm5DaqI4BNMqXjy3X8r0kQs++Jz1F pxD6oUoHL40JxDTUVs2l+kHNUA/GaV1S1vDovYB7jN9mC0ac1PnvIXOEEHN7c1Ro T/+lwSy2jxNsuqRM7g47mb8WyEFQVmeKaxLZKmrjuV8RexzE99gVsjh23uJlTfGo uEqTMt+kTKjyUomffcrBO7bxwXmkOp9Nn0Xn1ihyUPdtJKHgztQL -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAzsiDuu++IOctfRvI8f/b G7C0ct50NXbzhKbJoXZymhFm9oj2ikMQjspzg2875O6p9I8NjfLKBDLzlIaq1Gu5 D7YCSUcRTGfH8Jy2Gm5QR0fw30b7lXPMpO0vLo1GF1Q/mh9omNwWtRxLmos7Wkfi qfFvcf/ZsRPxfmzmeNkh8QBkjBdBouHd1E10PQC7rZYYHr850+svfEAf08QOzW60 5SnQeBZUP9wXj88CzKtl1e50hzTepN4Yp4IboVlvnn9ICvNRh58UmhKfej5j0UC7 qOfaLUp1zN38Mef4xI7j28E2BICwqpv4QaD77tfA2Da9xLd1DQT4/wXe8iq+/MJW vwIDAQAB -----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 327413978748685985471805415346268236329633 . . . . . . . . [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 2019-08-10 05:38:41 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-11-08 05:38:41 +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 'mailer.brighton.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 26103968243266164025084007111683336260353621014210591575846253103872971950074160018007443290322492029204895778820124407344879549539399898554280824960593570493002565670680343231569016442393762288867533987637541766901928214971032017696350479155610557209690224734873484531270348998467607399263535134035413875920353041637809797171307164076285252255006517433978688838703756061206214278511449469622669057484307343646261615153354613667822636962921644896498650579891277880070715172621441391925987475483474684523427873732308942373093831578060906722268946472017998389337934410855582321827129353731712586650313993237341524874943 . . . . . . . . . . . . . . . . . . . . [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) 80d602bb9cc56cde2155dcb8c897adf303bd3039 . . . . . . . . . . . . . . . . [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 (25 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mailer.brighton.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) 00f10077006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d9130000016c7a402c8900000403004830460221008902cb106c3036edf3905ad5eb4b081d80173f0c9f9dbcac4998a7d81796a1ac022100dfa9559d00aff1e8d517ffbf82fffa0ad2ceec8bc4c9a9ee8c90a1e1e6b7231d00760063f2dbcde83bcc2ccf0b728427576b33a48d61778fbd75a638b1c768544bd88d0000016c7a402bd20000040300473045022100cf52808ee956418bf51db8f4a98108545452066334423e342f59b11c127bfeca02207337803922ebc6af3c52a3a14296c58d8e8387b95c38b0b2225871bbc3c59cc5 . . . . [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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