hanu.edu.vn

Issued by R10

About this certificate

This digital certificate with serial number 04:c8:62:3b:5e:81:ac:d2:2c:59:b1:26:c8:6f:64:3c:1c:35 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=hanu.edu.vn

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate will expire on

Certificate Details

Serial Number (hex): 04:c8:62:3b:5e:81:ac:d2:2c:59:b1:26:c8:6f:64:3c:1c:35
Serial Number (int): 416636189717150675802692336291630446025781
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 49:c2:e4:f1:9e:6d:45:b9:3f:a9:ac:6d:ed:27:48:be:5d:02:cb:51
AuthorityKeyId: bb:bc:c3:47:a5:e4:bc:a9:c6:c3:a4:72:0c:10:8d:a2:35:e1:c8:e8

Fingerprint (sha1): 1c:ad:53:31:49:97:6d:ee:3a:13:d9:48:7f:45:e9:02:fc:b5:0c:d2
Fingerprint (sha256): c5:a2:47:40:e7:8e:1d:81:fb:4f:e9:56:e3:74:19:f2:85:6b:db:46:7e:9f:f7:19:ae:7c:1d:5c:d1:97:d8:2e

Issuing Certificate URL: http://r10.i.lencr.org/

Revocation information

OCSP Server: http://r10.o.lencr.org

Check the revocation status for certificate hanu.edu.vn

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for hanu.edu.vn

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

hanu.edu.vn

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hanu.edu.vn
fmt.hanu.edu.vn

Certificate

The complete raw certificate details for hanu.edu.vn in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----
MIIE5zCCA8+gAwIBAgISBMhiO16BrNIsWbEmyG9kPBw1MA0GCSqGSIb3DQEBCwUA
MDMxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQwwCgYDVQQD
EwNSMTAwHhcNMjQwNzAxMDEyODU1WhcNMjQwOTI5MDEyODU0WjAWMRQwEgYDVQQD
EwtoYW51LmVkdS52bjCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBALUm
Y15Isc9zzniXUVUHjzOJHu1TIyAXOlHL6xJbUQ3VD2uGoqPqRFCFuzszHxjhl9+j
UbgIhSXPvz+PlExoRGuMcjkyQHuq4JqEhDnQU9ALuzsad0ceKbMj3AI13wpRT/n4
C0B3C4hP7VLS86JIZNhkMppBhcpC4VIBkrMxgn+vQBbuonYIUFrrFwYaKrVsRcA6
GzqoynZhg6mCJkLYxbslzLfLFUqQaE+SqROHnWtQZdIgqRqRe3f2XZascUlrOJOf
EEeCPDOmTZqyBE3fyS5kTkDBJeJK58yrYXQ5bxjj8WyUPKbE5yjzAGOLe+orECQu
NLRtdl4FC9Qs/ZObxIMCAwEAAaOCAhAwggIMMA4GA1UdDwEB/wQEAwIFoDAdBgNV
HSUEFjAUBggrBgEFBQcDAQYIKwYBBQUHAwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4E
FgQUScLk8Z5tRbk/qaxt7SdIvl0Cy1EwHwYDVR0jBBgwFoAUu7zDR6XkvKnGw6Ry
DBCNojXhyOgwVwYIKwYBBQUHAQEESzBJMCIGCCsGAQUFBzABhhZodHRwOi8vcjEw
Lm8ubGVuY3Iub3JnMCMGCCsGAQUFBzAChhdodHRwOi8vcjEwLmkubGVuY3Iub3Jn
LzAWBgNVHREEDzANggtoYW51LmVkdS52bjATBgNVHSAEDDAKMAgGBmeBDAECATCC
AQUGCisGAQQB1nkCBAIEgfYEgfMA8QB3AD8XS0/XIkdYlB1lHIS+DRLtkDd/H4Vq
68G/KIXs+GRuAAABkGwftboAAAQDAEgwRgIhAPQUAu2swn9jSK3p4N9dv4flXcGM
i9+K/saO82PTHGlDAiEA97eYtWQIgB8wJbF//IJS5uZJf+s0+eFEiwTrvIQWyxsA
dgDuzdBk1dsazsVct520zROiModGfLzs3sNRSFlGcR+1mwAAAZBsH7W5AAAEAwBH
MEUCIQDFdA2WKhlTEhs0zcUIJVnPVq7D6ti6acSYyTtW/l2MnwIgOSwjVItHkQz4
9vbh2wSZVJ7cp2w4c4xpCMrXDA9u5eAwDQYJKoZIhvcNAQELBQADggEBAK+vn52n
trGS8jE9QZdWP3VK5CdRd+pB+Q+TlfqBbGVK1gvsNCElcLiAwppWQRzs75PNdcbZ
Z306jKCgAnbhA9b4AauSwzdFnai/owUs0OvuHFbJbkMkMi3MOetujTgPOj9QbcEV
sIBD0DWxvxkmZmZkZR9ePXhuoNV5muHCCPKJ+0MEJ+oKjxECRaKqGQnn63I7qF0a
qNbc3OfX71R/mi4V6Rxi+Z2UdrryRAdEFgFDez8q55vKyY+Vkybn1UCjPbPXbYVm
oQ783VGI7cUsIMGcP0D8FH6Obef8RcQ2LwtL595AJ/EcmS3SQupVChTOkxh1/ozU
5iQuFgLxSUO91Hc=
-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAtSZjXkixz3POeJdRVQeP
M4ke7VMjIBc6UcvrEltRDdUPa4aio+pEUIW7OzMfGOGX36NRuAiFJc+/P4+UTGhE
a4xyOTJAe6rgmoSEOdBT0Au7Oxp3Rx4psyPcAjXfClFP+fgLQHcLiE/tUtLzokhk
2GQymkGFykLhUgGSszGCf69AFu6idghQWusXBhoqtWxFwDobOqjKdmGDqYImQtjF
uyXMt8sVSpBoT5KpE4eda1Bl0iCpGpF7d/ZdlqxxSWs4k58QR4I8M6ZNmrIETd/J
LmROQMEl4krnzKthdDlvGOPxbJQ8psTnKPMAY4t76isQJC40tG12XgUL1Cz9k5vE
gwIDAQAB
-----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 416636189717150675802692336291630446025781
 . . . . . . . . [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 'R10'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-07-01 01:28:55 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-09-29 01:28:54 +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 'hanu.edu.vn'
 . . . . . . . . [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 22868063104802297294653760764172638863874801007532968380984984778454348033516371559439517779224574440010131427258261260451937341723835483323498420870164302704145306189657915008658459275905331670597000051227351854284639268238051362334366330028766575809824421473379681048298399867672696229283592559037902932259345545913580972683860640851586115065498843908488665764633648084562715849476251900114447133217584295207008809222195829415711912176375043911164133552027307780183192861697250202733759260532974728510367338148608438796102578493229430304925791602482371398509432701061826108130034289612498656331865614048980037780611
 . . . . . . . . . . . . . . . . . . . . [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)
							49c2e4f19e6d45b93fa9ac6ded2748be5d02cb51
 . . . . . . . . . . . . . . . . [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 bbbcc347a5e4bca9c6c3a4720c108da235e1c8e8
 . . . . . . . . . . . . . . . . [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 (75 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://r10.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://r10.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 (15 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'hanu.edu.vn'
 . . . . . . . . . . . . . . . . [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)
							00f10077003f174b4fd7224758941d651c84be0d12ed90377f1f856aebc1bf2885ecf8646e000001906c1fb5ba0000040300483046022100f41402edacc27f6348ade9e0df5dbf87e55dc18c8bdf8afec68ef363d31c6943022100f7b798b56408801f3025b17ffc8252e6e6497feb34f9e1448b04ebbc8416cb1b007600eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b000001906c1fb5b90000040300473045022100c5740d962a1953121b34cdc5082559cf56aec3ead8ba69c498c93b56fe5d8c9f0220392c23548b47910cf8f6f6e1db0499549edca76c38738c6908cad70c0f6ee5e0
 . . . . [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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