staffs.ac.uk
Issued by R3
About this certificate
This digital certificate with serial number 03:b2:24:7e:cb:78:d3:6a:14:92:e5:57:03:0c:59:f6:5e:70 was issued on by Let's Encrypt.
This certificate is currently not expired, we haven't checked the revocation status of this certificate but you can do this simply on revocationcheck.com. 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:
- DV certificate contains a subject common name, this is not recommended. If certificate policy 2.23.140.1.2.1 (CA/B BR domain validated) is included, only country and/or common name is allowed in SubjectDN. (BRs: 7.1.2.7.2)
- Subscriber certificates use of Subject Key Identifier is NOT RECOMMENDED (BRs v2: 7.1.2.7.6)
- Subscriber Certificate: commonName is NOT RECOMMENDED. (BRs: 7.1.2.7.1)
Certificate Subject
CN=staffs.ac.uk
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate will expire on
Certificate Details
Serial Number (hex): 03:b2:24:7e:cb:78:d3:6a:14:92:e5:57:03:0c:59:f6:5e:70Serial Number (int): 321955629671362177419425190032734776876656
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 8a:ef:19:87:ff:15:55:db:fe:3b:59:a4:e8:98:69:73:9a:d9:4d:60
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6
Fingerprint (sha1): 36:b0:50:15:f1:db:3f:9f:4b:6a:59:f9:d2:9f:bf:7d:52:ef:4c:42
Fingerprint (sha256): 11:64:95:4f:2c:c4:8d:24:be:c7:c5:0e:28:55:f6:9b:6d:b9:56:8a:9d:ee:cd:25:be:8f:ef:0e:2a:e5:6b:bd
Issuing Certificate URL: http://r3.i.lencr.org/
Revocation information
OCSP Server: http://r3.o.lencr.orgCheck the revocation status for certificate staffs.ac.uk
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for staffs.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
staffs.ac.uk
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(limited to 100 certificates)
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myportal.staffs.ac.uk
allstokedup.staffs.ac.uk
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digitalacademy.staffs.ac.uk
journals.staffs.ac.uk
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unicard.staffs.ac.uk
eu-central-1-san1.blackboard.com
evision.staffs.ac.uk
*.staffs.ac.uk
coll-publisher-ms.staffs.ac.uk
crusmis14.staffs.ac.uk
vmp1wstuweb1.staff.staffs.ac.uk
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crwnfcet2.staffs.ac.uk
medialibrary.staffs.ac.uk
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crusetran4.staffs.ac.uk
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coll-cucm-imp-ms.staffs.ac.uk
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inplace-test.staffs.ac.uk
allstokedup.staffs.ac.uk
myportal.staffs.ac.uk
eu-central-1-san1.blackboard.com
vpn.staffs.ac.uk
www.staffs.ac.uk
adfs.staffs.ac.uk
*.staffs.ac.uk
search.staffs.ac.uk
coll-socialminer.staffs.ac.uk
*.ezproxy.staffs.ac.uk
staffs.ac.uk
blackboard.staffs.ac.uk
hotspot.staffs.ac.uk
staffdirectory.staffs.ac.uk
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syllabus-test.staffs.ac.uk
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accesscentre.staffs.ac.uk
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staffsurvey.staffs.ac.uk
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ingenius.staffs.ac.uk
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reslifeportal.staffs.ac.uk
vpn.staffs.ac.uk
blackboard.staffs.ac.uk
gamestech.staffs.ac.uk
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i3.staffs.ac.uk
myportal.staffs.ac.uk
allstokedup.staffs.ac.uk
airnet-secure.staffs.ac.uk
learning.staffs.ac.uk
vmp1wscan1.staff.staffs.ac.uk
www-int.staffs.ac.uk
crusweb3.staffs.ac.uk
blackboard.staffs.ac.uk
crusweb3.staffs.ac.uk
sspr.staffs.ac.uk
sid-uat.staffs.ac.uk
libcat.staffs.ac.uk
workvivo.staffs.ac.uk
digitalacademy.staffs.ac.uk
journals.staffs.ac.uk
staffs.ac.uk
iswiki.staffs.ac.uk
govdocs.staffs.ac.uk
beacon.staffs.ac.uk
staffs.ac.uk
unicard.staffs.ac.uk
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*.staffs.ac.uk
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crusmis14.staffs.ac.uk
vmp1wstuweb1.staff.staffs.ac.uk
staffdirectory.staffs.ac.uk
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eu-central-1-san1.blackboard.com
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*.staffs.ac.uk
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grafana.staffs.ac.uk
staffs.ac.uk
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timetables.staffs.ac.uk
myview-test.staffs.ac.uk
rodc.staffs.ac.uk
cruscampus2.staffs.ac.uk
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staffs.ac.uk
blackboard.staffs.ac.uk
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staffdirectory.staffs.ac.uk
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syllabus-test.staffs.ac.uk
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accesscentre.staffs.ac.uk
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Certificate
The complete raw certificate details for staffs.ac.uk in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIE5jCCA86gAwIBAgISA7Ikfst402oUkuVXAwxZ9l5wMA0GCSqGSIb3DQEBCwUA MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD EwJSMzAeFw0yNDA0MTIxMjM5MDRaFw0yNDA3MTExMjM5MDNaMBcxFTATBgNVBAMT DHN0YWZmcy5hYy51azCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBALir kB6QsVYyXQ631inwW/hYETyiR1AjoXF8X2GEH7Em+cVFh9iVczQQQlky61o/sErK EkhLF7vObgzjnfxtieutZt2KlWX++s/3KUQqw4C8n1FIy2cSRo3GLL7/Ynkbt8vy 8l3dKmLcDG17yys7va9dIEPKztnERhXi5ywHfKCUZM6xQ5GTc5NkoyUxWDZChAlr rAnVJoJ79bTXND25f5QbQcuC/a1m/3WYjAi++adZR6r+0G3jgy85/4owh9kiSnRl y/nc42A2cdJjqcqPpkMMPmRp0wpJPOW82rCKyHATh7ZwOC3UWhbnHvD668STtkYe kfB0K/Y6igxXHq79+B0CAwEAAaOCAg8wggILMA4GA1UdDwEB/wQEAwIFoDAdBgNV HSUEFjAUBggrBgEFBQcDAQYIKwYBBQUHAwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4E FgQUiu8Zh/8VVdv+O1mk6Jhpc5rZTWAwHwYDVR0jBBgwFoAUFC6zF7dYVsuuUAlA 5h+vnYsUwsYwVQYIKwYBBQUHAQEESTBHMCEGCCsGAQUFBzABhhVodHRwOi8vcjMu by5sZW5jci5vcmcwIgYIKwYBBQUHMAKGFmh0dHA6Ly9yMy5pLmxlbmNyLm9yZy8w FwYDVR0RBBAwDoIMc3RhZmZzLmFjLnVrMBMGA1UdIAQMMAowCAYGZ4EMAQIBMIIB BQYKKwYBBAHWeQIEAgSB9gSB8wDxAHYAO1N3dT4tuYBOizBbBv5AO2fYT8P0x70A DS1yb+H61BcAAAGO0oh9DgAABAMARzBFAiEAuVVsQmbBK9lN/Jo0U59yim9RjJDW aIhsBK/CYHed5ZkCIHD65AGSQAjkQ/aj7qJws5kR4Ao+OIYheMX2V3PHS61+AHcA 7s3QZNXbGs7FXLedtM0TojKHRny87N7DUUhZRnEftZsAAAGO0oh9GgAABAMASDBG AiEAgkUwCq06Ie8SW5LRGn/o2ttU11AATZIOn6m2mdg9ex0CIQDx8f3A0zgaHW4P TlUDFWRYf9RIKZV3sKeNVg4qW125tjANBgkqhkiG9w0BAQsFAAOCAQEAmZ7MbPox K1LFW4hhnr/j+/03bF/+wMlxf0QvZFF3HnirQJLM7OyYlM+XEmHR0HYWEApfH7qQ cyizzN+MLwWg2FvNBe1s1IN3iFmR3tjFU5j+LHZJGMjeXQi6CdBhXvDvtnGzKfU4 jskdlXYJ7ua3NjafR7SlYKVAAxmdA2vxaC9P6zeo0ov9jEeJsa8NFOP+a6w9RBIb P3QCwylEVq8y5XBPTWOXmInNl8BpDHc4WHQwmhcTNPD5JHTU1WhF3/JjqviLzWLQ n3i3P2D7bJ6QhXNhP0LTc6lhZ8BB3yrhZlogyYw7FCqF1vFf3+kLpvSqqM5I+jnO mJeSGq/z6m4Npw== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAuKuQHpCxVjJdDrfWKfBb +FgRPKJHUCOhcXxfYYQfsSb5xUWH2JVzNBBCWTLrWj+wSsoSSEsXu85uDOOd/G2J 661m3YqVZf76z/cpRCrDgLyfUUjLZxJGjcYsvv9ieRu3y/LyXd0qYtwMbXvLKzu9 r10gQ8rO2cRGFeLnLAd8oJRkzrFDkZNzk2SjJTFYNkKECWusCdUmgnv1tNc0Pbl/ lBtBy4L9rWb/dZiMCL75p1lHqv7QbeODLzn/ijCH2SJKdGXL+dzjYDZx0mOpyo+m Qww+ZGnTCkk85bzasIrIcBOHtnA4LdRaFuce8PrrxJO2Rh6R8HQr9jqKDFcerv34 HQIDAQAB -----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 321955629671362177419425190032734776876656 . . . . . . . . [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 'R3' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-04-12 12:39:04 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-07-11 12:39:03 +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 'staffs.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 23312448965597652958228413317961432520870675250914346640002349989179334338575289190519300795511755223249319844565820502536746316382689765273729652925975993870608904716559763469648609137587668376063587111547781965269039873833852094035915841905370126813370135046173276725046159148392064272676806047427011146007421541869392042489072103209072631096452718939867531640197405214581189139397361213180617774059523096750227424427703449355564132772761450884232433574220386887981324067677939630195869143213757883875137831686571575165176756037674861075993646301980049198797933389338150186133387243051976931275805706043031231002653 . . . . . . . . . . . . . . . . . . . . [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) 8aef1987ff1555dbfe3b59a4e89869739ad94d60 . . . . . . . . . . . . . . . . [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 142eb317b75856cbae500940e61faf9d8b14c2c6 . . . . . . . . . . . . . . . . [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 (73 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://r3.o.lencr.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://r3.i.lencr.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 (16 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'staffs.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 (12 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 1.3.6.1.4.1.11129.2.4.2 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (246 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes) 00f10076003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018ed2887d0e0000040300473045022100b9556c4266c12bd94dfc9a34539f728a6f518c90d668886c04afc260779de599022070fae401924008e443f6a3eea270b39911e00a3e38862178c5f65773c74bad7e007700eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018ed2887d1a00000403004830460221008245300aad3a21ef125b92d11a7fe8dadb54d750004d920e9fa9b699d83d7b1d022100f1f1fdc0d3381a1d6e0f4e55031564587fd448299577b0a78d560e2a5b5db9b6 . . . . [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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