mailer.brighton.ac.uk
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 04:f7:fa:c2:71:d5:3a:13:3a:d3:e2:3e:3f:1b:c5:d2:55:98 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): 04:f7:fa:c2:71:d5:3a:13:3a:d3:e2:3e:3f:1b:c5:d2:55:98Serial Number (int): 432832204969855428992878106775621746185624
Serial Number lenght: 139 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): b8:78:99:71:ac:ec:89:e2:37:71:a0:62:24:e5:6e:01:91:fe:7d:09
Fingerprint (sha256): 04:44:2e:d3:e3:1c:b0:1a:a6:64:18:85:e7:b4:37:28:41:a8:ea:69:47:3e:6b:7d:97:e6:da:09:7a:83:72:98
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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(limited to 100 certificates)
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shop.brighton.ac.uk
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staffmail.dev.brighton.ac.uk
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timetable.brighton.ac.uk
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staffmaildev.brighton.ac.uk
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student.brighton.ac.uk
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issd.brighton.ac.uk
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
pcbookings.brighton.ac.uk
tel-krnl-pro01.university.brighton.ac.uk
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springboard.brighton.ac.uk
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moviesandmemories.brighton.ac.uk
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researchers.brighton.ac.uk
shop.brighton.ac.uk
wadslive.brighton.ac.uk
staffmail.dev.brighton.ac.uk
evsipr.brighton.ac.uk
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authenticate.brighton.ac.uk
wattsmedia.brighton.ac.uk
prism.brighton.ac.uk
shs.brighton.ac.uk
arch.brighton.ac.uk
pay.brighton.ac.uk
timetable.brighton.ac.uk
tel-ms-pro01.university.brighton.ac.uk
lists.brighton.ac.uk
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mysite.brighton.ac.uk
ahs.brighton.ac.uk
prism.brighton.ac.uk
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studentfolio.brighton.ac.uk
socialwork.brighton.ac.uk
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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evsipr.brighton.ac.uk
blogs.brighton.ac.uk
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evsite.brighton.ac.uk
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peri.brighton.ac.uk
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efin5.brighton.ac.uk
shs.brighton.ac.uk
about.brighton.ac.uk
emea-san1.blackboard.com
smtp.brighton.ac.uk
dataview.brighton.ac.uk
staffmaildev.brighton.ac.uk
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shs.brighton.ac.uk
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----- MIIFYzCCBEugAwIBAgISBPf6wnHVOhM60+I+PxvF0lWYMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTEwMDkxMzM1MzJaFw0y MDAxMDcxMzM1MzJaMCAxHjAcBgNVBAMTFW1haWxlci5icmlnaHRvbi5hYy51azCC 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 APEAdwBep3P531bA57U2SH3QSeAyepGaDIShEhKEGHWWgXFFWAAAAW2w8k3VAAAE AwBIMEYCIQDY2dKHVE+9GHI7uo9x3PxTJqM3VVxu7VwdUTdm0n9OBwIhANmRCbN5 qTgJEVfb3HIon6Nrnv+GcjWd47dFkfWSEgonAHYAsh4FzIuizYogTodm+Su5iiUg Z2va+nDnsklTLe+LkF4AAAFtsPJNyQAABAMARzBFAiBqlMO3F3hU55XwOEl4egiA dm3DKOVcU4hrKNfGuQpnZAIhAKmdARa//HECxskNq7mQeUX++GkQxCaqUmqwRGIJ 5ZgLMA0GCSqGSIb3DQEBCwUAA4IBAQCGUMduVlvr1Df6HZ5oSokxFzgpiWQPqAcQ iD3JwS2jS8RHmofKmET6oiC2+WrZeLCLmuKlprabDNM7/EhnyAvXE7x6rhg/v+7d ljpNrtQAQreeV9Oet9Mnax+ZbF2aJnmM4YWCjAecrK2Bbtw637N41e4VzJehnh9V N44QSNemF1Sr43jW9l1tpe2jaqgiuW/0kW2IYBtH9HYaBvbPRfblaesgybuS6/i+ ug8KHlsI+n3LXamkrTE5KKXIgeuXk9twuYwwycmQUBdWH0NmZ49QDMqN9UHJ81s5 EMjy74tYeDXVzOPwo4zDCWPPJAK5TvJz+RBhzCw6GfPTKd4L6Yct -----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 432832204969855428992878106775621746185624 . . . . . . . . [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 2019-10-09 13:35:32 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-01-07 13:35:32 +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) 00f10077005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016db0f24dd50000040300483046022100d8d9d287544fbd18723bba8f71dcfc5326a337555c6eed5c1d513766d27f4e07022100d99109b379a938091157dbdc72289fa36b9eff8672359de3b74591f592120a27007600b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016db0f24dc9000004030047304502206a94c3b7177854e795f03849787a0880766dc328e55c53886b28d7c6b90a6764022100a99d0116bffc7102c6c90dabb9907945fef86910c426aa526ab0446209e5980b . . . . [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) 008650c76e565bebd437fa1d9e684a893117382989640fa80710883dc9c12da34bc4479a87ca9844faa220b6f96ad978b08b9ae2a5a6b69b0cd33bfc4867c80bd713bc7aae183fbfeedd963a4daed40042b79e57d39eb7d3276b1f996c5d9a26798ce185828c079cacad816edc3adfb378d5ee15cc97a19e1f55378e1048d7a61754abe378d6f65d6da5eda36aa822b96ff4916d88601b47f4761a06f6cf45f6e569eb20c9bb92ebf8beba0f0a1e5b08fa7dcb5da9a4ad313928a5c881eb9793db70b98c30c9c9905017561f4366678f500cca8df541c9f35b3910c8f2ef8b587835d5cce3f0a38cc30963cf2402b94ef273f91061cc2c3a19f3d329de0be9872d