tec.hanu.vn

Issued by R3

About this certificate

This digital certificate with serial number 03:e8:5c:cb:16:2e:23:cf:d2:0f:1b:89:40:cb:0d:9b:0f:56 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=tec.hanu.vn

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:e8:5c:cb:16:2e:23:cf:d2:0f:1b:89:40:cb:0d:9b:0f:56
Serial Number (int): 340405710382681548264647312285938738728790
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 6e:ad:08:f0:d3:ce:96:72:58:ed:34:f3:c1:1d:05:46:b9:c0:f0:7a
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): c7:cb:36:4f:70:81:74:d7:16:a4:49:f7:e6:fc:8b:f9:cb:d3:20:6c
Fingerprint (sha256): 66:19:4e:39:78:c7:ec:a2:83:7d:ff:7d:c6:0e:a7:1a:f5:03:74:86:93:99:c4:32:4e:7b:d6:23:cc:87:3f:34

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

Revocation information

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

Check the revocation status for certificate tec.hanu.vn

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for tec.hanu.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

tec.hanu.vn

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connections.hanu.vn
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www.hanu.vn
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hoctiengnhat.hanu.vn
latrobe.hanu.vn
lms.fit.hanu.vn
hoctiengnhat.hanu.vn
en.hanu.vn
achilles.ihappy.asia
latrobe.hanu.vn
alumni.hanu.vn
connections.fmt.hanu.vn
alumni.hanu.vn
es.hanu.vn
voyage.hanu.vn
connections.fmt.hanu.vn
jvcc.ihappy.info
fmt.hanu.vn
voyage.hanu.vn
www.hanu.vn
latrobe.hanu.vn
hanu.vn
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Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvG6bMYbskvDHbSMZCMl2
NTJzb3+Y+9tYOAtF5OZRx/0y6471J++QommIcHm+G+yzRAWzFz+bVzUYghHYZsa+
AsY3yiWXVhI7CtNj4201FJKmUPYYiWeUfvayE+mbP1SpN94VmU5ZVn7AuoV5aWl1
HpnyDjrIm3N1yoPgrAnkFHcpQ+P6cYWonoCPM/gzrrrBFX/dLhdCUPH1uraT8WBZ
sFtwNtklEMdhUaUlnRbyAf8B1xqt91qSo8HTsbpUM1ArvxPC+dGhPa+7Q/ZMHR6p
Yl8c6im0RO+9U09UVM+shYZnrrR4wopAUCIp9rZ2VZVWWN1y4MJ9ENaojiJqmaWd
sQIDAQAB
-----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 340405710382681548264647312285938738728790
 . . . . . . . . [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 06:51:36 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-04-03 06:51:35 +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 'tec.hanu.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 23787343295713308644650153526948982719723283112347344168267305090361313539426505570885052573206472514379153392616499111125420723351671595755171485043570318211356363791962083559620618535432706087939423643109471733145257254022482529384333345555744018329041552631409667871017673346030201655790429045584691019654533137679143223775506458516476557184857161584680492154225936930689171494199674780092829467726167572868903861568961652555655151175861968012731479345607984163820801029634847151360094004504866466715662703423045439330100652392718053110428135243836032706347908407503076907450378178518376988518266934641227540569521
 . . . . . . . . . . . . . . . . . . . . [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)
							6ead08f0d3ce967258ed34f3c11d0546b9c0f07a
 . . . . . . . . . . . . . . . . [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 (15 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'tec.hanu.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 (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef00760048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018cd374ce77000004030047304502205ce914e2bf51650ada1ae3e65cdafcd14b50d33e411d9b9f682215c49a10435c022100eb84253071c8f807780894b5708f3b2497c237e1a88f3eb132490b0242f7c3da00750076ff883f0ab6fb9551c261ccf587ba34b4a4cdbb29dc68420a9fe6674c5a3a740000018cd374cfef000004030046304402201b2758844a2f1298e78ffc0bbb3617f4a7750c4db62fd122dc97a451e5c095c3022018a4544243ac98ae090e74ee4d92b27e241eaea725a638ae069286c71717bcfb
 . . . . [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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