apcal.hanu.vn

Issued by R3

About this certificate

This digital certificate with serial number 04:f5:5a:ee:9c:47:4b:db:0e:4e:53:33:25:a1:94:51:1e:74 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=apcal.hanu.vn

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:f5:5a:ee:9c:47:4b:db:0e:4e:53:33:25:a1:94:51:1e:74
Serial Number (int): 431939193078648457758781732288151132642932
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 25:0c:dd:61:f1:22:5d:5b:49:59:cb:16:a6:92:53:14:dc:e4:da:c6
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): ac:31:eb:87:d6:69:61:a6:fd:a8:6a:f6:c4:ad:77:ef:25:2f:3d:15
Fingerprint (sha256): f5:10:11:7f:1f:d7:b9:c9:e9:68:f1:65:3d:bc:d4:f7:2d:7c:d7:65:6f:90:13:7e:95:12:a9:2b:66:af:76:6d

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

Revocation information

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

Check the revocation status for certificate apcal.hanu.vn

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for apcal.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

apcal.hanu.vn

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

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

Certificate (PEM)

-----BEGIN CERTIFICATE-----
MIIE6DCCA9CgAwIBAgISBPVa7pxHS9sOTlMzJaGUUR50MA0GCSqGSIb3DQEBCwUA
MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD
EwJSMzAeFw0yNDAxMDQwNjQzNTlaFw0yNDA0MDMwNjQzNThaMBgxFjAUBgNVBAMT
DWFwY2FsLmhhbnUudm4wggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQDS
CNZYOyTwhTkamaG6mxjwLnuxW8WM0ZqsNb/FD5qr4DwKzMpzQiOqsvVXn6Of+2RF
Zvc7WPg/3QJbvRuHX2oeI/BbPDWXbRtPGt2bN5xOM3xEDLQ0HQdnPKLYoGRWNN7h
O21KwizL0V9F2RL1LVYq0Cnf8a4z3kZePtB/UC84NnqC16d9CQhd3rlmDBfJlcei
TejROZPkL/AKbJbC59MDrwHL2u0sOq3lormqmpSPsi+wc0OxufnF1ifsngZBItyO
c/ZPEv3AWscEQZBjz4AhllqoYxvPIbLkdBgajMOplBvorRXNjZbF6UObt4zMARL5
b4gNsDwcyPZsvDaOq57/AgMBAAGjggIQMIICDDAOBgNVHQ8BAf8EBAMCBaAwHQYD
VR0lBBYwFAYIKwYBBQUHAwEGCCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYDVR0O
BBYEFCUM3WHxIl1bSVnLFqaSUxTc5NrGMB8GA1UdIwQYMBaAFBQusxe3WFbLrlAJ
QOYfr52LFMLGMFUGCCsGAQUFBwEBBEkwRzAhBggrBgEFBQcwAYYVaHR0cDovL3Iz
Lm8ubGVuY3Iub3JnMCIGCCsGAQUFBzAChhZodHRwOi8vcjMuaS5sZW5jci5vcmcv
MBgGA1UdEQQRMA+CDWFwY2FsLmhhbnUudm4wEwYDVR0gBAwwCjAIBgZngQwBAgEw
ggEFBgorBgEEAdZ5AgQCBIH2BIHzAPEAdwBIsONr2qZHNA/lagL6nTDrHFIBy1bd
LIHZu7+rOdiEcwAAAYzTbdScAAAEAwBIMEYCIQDW49kRMEobpYKrxkGyD9X8b/B+
EYdCUfcz1Rw5UorsMAIhAO4B0ycgc9Di0i0sr3w7OWBTfw9DCvS5HMy0lsCXMIFs
AHYAouK/1h7eLy8HoNZObTen3GVDsMa1LqLat4r4mm31F9gAAAGM023UnwAABAMA
RzBFAiA/LyUXY8iSfyZ7tAG6FVuqVjP8hJxMyIPZv9AQKXaDWwIhAKA36ZP8F5v6
DaN7zmWSPKrnELgQX9uSpjmxhukZ4+jeMA0GCSqGSIb3DQEBCwUAA4IBAQB48Npf
qSQPeeeAuJ3gzS6NTeVc/H8Wao/niib/Hmy+yvItGq0a4RNwUiEGDO7AdXQwN61E
XjbjqAgkZ/lNAbPj8Kq0gHklh+TFhxfqzt5V9KPYlpVLDlbURZKKYLzkeuU9kZkx
XZsiwSp0BJD6bcbMM6neFxYSdqU56zK3506jJKo7FF++XoEnaF9jr9368gUnP35P
79y5kv4YDz3OnQtQ64PubGVogUTAc3oPSqn258ThlQiRENKlxidA3osWrcJUEqSy
xcxjVuMzePqeGdkCK4ultFRryQGpKkKjrqQj6BmZwHPG9U6x35zHJhHuZuiG0DtN
M1gI7fpL6mqiiB+m
-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0gjWWDsk8IU5GpmhupsY
8C57sVvFjNGarDW/xQ+aq+A8CszKc0IjqrL1V5+jn/tkRWb3O1j4P90CW70bh19q
HiPwWzw1l20bTxrdmzecTjN8RAy0NB0HZzyi2KBkVjTe4TttSsIsy9FfRdkS9S1W
KtAp3/GuM95GXj7Qf1AvODZ6gtenfQkIXd65ZgwXyZXHok3o0TmT5C/wCmyWwufT
A68By9rtLDqt5aK5qpqUj7IvsHNDsbn5xdYn7J4GQSLcjnP2TxL9wFrHBEGQY8+A
IZZaqGMbzyGy5HQYGozDqZQb6K0VzY2WxelDm7eMzAES+W+IDbA8HMj2bLw2jque
/wIDAQAB
-----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 431939193078648457758781732288151132642932
 . . . . . . . . [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 06:43:59 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-04-03 06:43:58 +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 'apcal.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 26514401869931894423783447615671987255877485468246903168542648590784378216420768758561878635836369406343646585824688123702853644417792854303722674626874981594854410308209191221579654287850358002129043791442322564195956497191464982158803121164621432409176687909907780884262261818600751715892855957530097952319734243906123192663934335594576835139195450448229321698213405400105509999519513061733284241685712243793629506504289384577904983610272162956044212639138070586797554244469889128272396118886360265056051733329239497776934054356788666360053850139485209360616893553983945678120475724885109176033832965449000155848447
 . . . . . . . . . . . . . . . . . . . . [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)
							250cdd61f1225d5b4959cb16a6925314dce4dac6
 . . . . . . . . . . . . . . . . [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 (17 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'apcal.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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f100770048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018cd36dd49c0000040300483046022100d6e3d911304a1ba582abc641b20fd5fc6ff07e11874251f733d51c39528aec30022100ee01d3272073d0e2d22d2caf7c3b3960537f0f430af4b91cccb496c09730816c007600a2e2bfd61ede2f2f07a0d64e6d37a7dc6543b0c6b52ea2dab78af89a6df517d80000018cd36dd49f000004030047304502203f2f251763c8927f267bb401ba155baa5633fc849c4cc883d9bfd0102976835b022100a037e993fc179bfa0da37bce65923caae710b8105fdb92a639b186e919e3e8de
 . . . . [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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