hcmcons.edu.vn

Issued by R3

About this certificate

This digital certificate with serial number 04:a6:d6:4f:79:2b:92:07:10:c2:fe:c9:61:96:b2:eb:31:0a 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=hcmcons.edu.vn

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:a6:d6:4f:79:2b:92:07:10:c2:fe:c9:61:96:b2:eb:31:0a
Serial Number (int): 405220884076090134152634884349361813926154
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: e1:f4:24:d4:d6:76:82:50:e8:86:eb:02:dc:43:52:22:6f:99:b7:88
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 58:19:0e:b3:b0:cf:cc:c5:74:b9:a5:2a:59:cc:d0:86:59:23:47:c1
Fingerprint (sha256): 7c:f4:40:9d:43:5e:e0:c5:f7:4b:24:b6:da:c0:da:ed:3a:25:fe:f9:d8:95:6a:9a:7d:7a:76:ba:ca:a9:fb:1b

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

Revocation information

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

Check the revocation status for certificate hcmcons.edu.vn

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for hcmcons.edu.vn

Public Key Algorithm

RSA

Key Size

4096

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

hcmcons.edu.vn

Other certificates including the domain name hcmcons.edu.vn

(limited to 100 certificates)

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----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-----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 405220884076090134152634884349361813926154
 . . . . . . . . [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 2023-12-04 18:41:36 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-03-03 18:41:35 +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 'hcmcons.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 (4208 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 707086503299517439109350671656562995401330562464360080989782684255764400805015258212099086046473525070221961937686738607354749742345698212336011505659090469046028236732744288791596693915720285985473290267643463164594421106835210143353037950328381947670738661517622841024935697606444958984516496714963975871417561813263369951347250322253119599565431171290148513161437887217089703940974935812607519780186213678155335082531220311182955796879029955088443393437796146977134721880597724458946701370215571483446228499171353295287128960327340480493641720519847665026471714364587230897685975192090114880382212607807406655947135201667815584285929786149305421917024195707882197825611440914924489365220275778660135477112733077557693072278716566374353170679876799969540971722050982528170195893058948245690861812561464222800528398475329977549327627399272914381436403220785210695164660984350076729658699820406773412725716421243487252781717396981397723910994796837404704243257205030630543374661496049950884247983789371519116497264877939214022189536798126036715020816551530863086715783643134688963266744225563850788211994579253784478821255210073564883867856330517110410685592601748896693905186051155583961653433599460461232646309052576988808086706081
 . . . . . . . . . . . . . . . . . . . . [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)
							e1f424d4d6768250e886eb02dc4352226f99b788
 . . . . . . . . . . . . . . . . [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 (18 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'hcmcons.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)
							00f00076003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018c3659b1cb000004030047304502206988af05181ae61f20291615371239f28ed33c1a8dc2f2d8c23bf8eff4f5f1550221009a2e77738e122e749291a1d17a9528dcd8886277c5c59c68196af93b89b9167c00760029d03a1bb674aa711cd3035b6557c14f8aa78b4fe8389449eca453f944bd24680000018c3659b316000004030047304502207d40a86e8fbb1a0c55ca4537a7e76ea02e3c516c4afc34753292f69a2b384120022100bf154e843676aaaa0d4ad1584fe73e354a50d46c8c878cb093e8076e5bd37002
 . . . . [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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