www.hanu.edu.vn

Issued by R3

About this certificate

This digital certificate with serial number 03:5b:41:f1:27:3e:69:b1:39:9c:b7:4b:13:8e:48:4b:7c:6c 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:
  • 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=www.hanu.edu.vn

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:5b:41:f1:27:3e:69:b1:39:9c:b7:4b:13:8e:48:4b:7c:6c
Serial Number (int): 292390205144313897336502648849647488695404
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: b1:ab:84:8a:cc:0a:7b:e8:b8:da:cc:62:c7:74:8e:85:13:f8:05:09
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 01:12:c2:79:75:6a:52:5a:8b:c8:b3:c7:d4:1a:c6:75:5d:fc:cd:68
Fingerprint (sha256): 89:28:c4:6e:82:33:20:46:02:f8:be:de:60:49:b4:e2:37:05:a5:63:f5:b4:6c:12:d1:4e:7f:dd:d4:73:d5:40

Issuing Certificate URL: http://r3.i.lencr.org/

Revocation information

OCSP Server: http://r3.o.lencr.org

Check the revocation status for certificate www.hanu.edu.vn

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.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

www.hanu.edu.vn

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fmt.hanu.edu.vn
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kientrucvietmax.com
learnvietnamese.ihappy.asia
tec.hanu.edu.vn
vnh.hanu.edu.vn
nhaphobacninh.com
sunway.hanu.edu.vn
en.hanu.edu.vn
fmt.hanu.edu.vn
hanu.edu.vn
ehp.hanu.edu.vn
hanu.edu.vn
hoctiengnhat.hanu.vn
sunway.hanu.edu.vn
hnplogis.com.vn
latrobe.hanu.edu.vn
hoctiengnhat.hanu.vn
sunway.hanu.edu.vn
tec.hanu.edu.vn
renluyenonline.hanu.edu.vn
fmt.hanu.edu.vn
en.hanu.edu.vn
it.hanu.edu.vn
hoctiengnhat.hanu.vn
www.ngukimthuanphat.duy1.name.vn
movenpick.ihappy.info
latrobe.hanu.edu.vn
vietthanhkubota.com
sunway.hanu.edu.vn
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www.hanu.edu.vn
apcal.hanu.edu.vn
kientrucvietmax.com
ehp.hanu.edu.vn
jvcc.ihappy.info
hoctiengnhat.hanu.vn
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sunway.hanu.edu.vn
hanu.edu.vn
latrobe.hanu.edu.vn
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kubota.happycloud.vn
ehp.hanu.edu.vn
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sonviva.com
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hanhlydep.com
sinvoice.ihappy.info
es.hanu.edu.vn
latrobe.hanu.edu.vn
latrobe.hanu.edu.vn
jvcc.ihappy.info
cthvietnam.com
hanu.edu.vn
jp.hanu.edu.vn
hanu.edu.vn
fmt.hanu.edu.vn

Certificate

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

Certificate (PEM)

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEArEQq/49e/eFh0/P/t+KW
/azBKKWPb0Ij+u7ZKVyFHEd06eael4UuN9xEC5Xg5H15O0FBrTFQPGRd7GEvMdol
JpSaM/3Ctqi1tBPmxPQlPx4HUx8qBcBiaBDmnNEecxBaN1XBbabK5W7j4x1eQ3X7
KkWf+hsmklB4olgDMAwsD1TyOqo5zsBMd1eLARZzpsep9IA5GyYnwazBuA8z+XrA
x4Iplsw01pMvAVM5Qr3eYuxchQza2tdESUXzkUqDUu6qx0axSj5A+ELvG0K+X/g3
AkbGRNvp737q1MDrSVMCr4PJh7dG0f2xT1TDDkiMJehVSn6qLq+gI08JiuRwn2ft
nQIDAQAB
-----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 292390205144313897336502648849647488695404
 . . . . . . . . [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 2024-01-04 06:56:39 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-04-03 06:56:38 +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 'www.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 21746603329085970806700592433979405948351457009290388136941115115203146777137427383051549324417579787836664416719861872579778135607449976865695447663914141101527716745644176806024307766716221884671872914589086933770944579664426912618843070648657738011139882381924444140329461249293372328820978340635657902731111600681619283053401936670906617363194925856473518388346003523320540504040626881795751134057582448907774282666916478948917800640088387217469174158683597937758234014457733874739139718745620565211379079228396174619554492424110672634742585326104818084057655730836737797261066461035828687153847113636096791539101
 . . . . . . . . . . . . . . . . . . . . [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)
							b1ab848acc0a7be8b8dacc62c7748e8513f80509
 . . . . . . . . . . . . . . . . [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 (19 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f000760076ff883f0ab6fb9551c261ccf587ba34b4a4cdbb29dc68420a9fe6674c5a3a740000018cd3796edf0000040300473045022069b267512eab09202bd6db38848d0bcc9b3ce45f0fcef070d77ca37c98440f9602210087a7ba62ce02b59fd37559978a43656fe903c593fd6118695706e1bcce46807200760029d03a1bb674aa711cd3035b6557c14f8aa78b4fe8389449eca453f944bd24680000018cd3796f670000040300473045022100b1d06f5d1b8a1b5967a5c4dbe089b9576e67d25421d4e78cd37bf3cb73c6da400220152afb6307993250e39280200364641f3d94964529b7d35fe67af834de8aff41
 . . . . [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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