alumni.hanu.vn

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:f5:47:01:e4:f2:8f:11:9f:ad:bf:0c:32:d2:aa:05:e5:a3 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:
  • Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)

Certificate Subject

CN=alumni.hanu.vn

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:f5:47:01:e4:f2:8f:11:9f:ad:bf:0c:32:d2:aa:05:e5:a3
Serial Number (int): 344800422714515133673439812246358657983907
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 36:fe:ed:5b:58:de:c5:55:25:2d:17:57:5b:0f:93:a7:fa:e0:65:ca
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): ca:e0:64:0a:c8:16:29:cd:2a:16:17:21:b6:4d:91:38:14:3c:c7:ef
Fingerprint (sha256): ea:b3:7b:90:d9:ae:75:78:c0:af:82:3c:70:a4:0f:48:8d:5e:39:ec:02:ed:a2:e2:19:7f:01:0d:99:2c:c0:11

Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/

Revocation information

OCSP Server: http://ocsp.int-x3.letsencrypt.org

Check the revocation status for certificate alumni.hanu.vn

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for alumni.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

alumni.hanu.vn

Other certificates including the domain name hanu.vn

(limited to 100 certificates)

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAqLgX9ZSwJKymYMzUgIB4
hGS5Yk4EgGOEgbMkz4I+Nv9AfBbtBazV+OcPmsQB7vd+Mb4pk0WOyMtiHPKJkgK+
fNtNzB0hnBLURevT5FO7NoEHKqTp1lgS0VRQv/TsDBVlfZw8hFXK2pqvhLIBTHXL
64trpYZWBk75AAnAxQzyWbtjVZpa82MbmoWAHvDdypil4cEeojIeWRBHRYuW2Tdd
WTF2B7cRzbcSnrdCmvMSFx9okOafSg/aStRvpLZiJGnSYE/9NVu83aK0xG5f0Omm
IgDgbOmFLF4OS+3c6iFV2BWs5QmDMUTK6DuS0xy99mlUzdRedKHxw91QJYTGTzPN
XwIDAQAB
-----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 344800422714515133673439812246358657983907
 . . . . . . . . [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 'Let's Encrypt Authority X3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-10-08 01:03:15 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-01-06 01:03:15 +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 'alumni.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 21298815167442191763587066746943596625975543409053194436112462702584281503216038660668509948818425873676936704073683470078891613457996040330831290077674399372605566946897443718027664864780179451483382094484382281417775056179334927094346387367239880636360907897812664928535533322757392482647991227581492749850003604864122014431051589365590511109422658208197752150823913510761974589652000578707567022633041638958989009116951535336327705909904664631536235660276813008555057295294209971045512288279433225498949873605455116629759427931385462334700816573006611433457362898042205726043270128464939081708176696188208206302559
 . . . . . . . . . . . . . . . . . . . . [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)
							36feed5b58dec555252d17575b0f93a7fae065ca
 . . . . . . . . . . . . . . . . [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 a84a6a63047dddbae6d139b7a64565eff3a8eca1
 . . . . . . . . . . . . . . . . [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 (99 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://ocsp.int-x3.letsencrypt.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://cert.int-x3.letsencrypt.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 'alumni.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 (69 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 1.3.6.1.4.1.44947.1.1.1
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.2.1 (cps)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:22|false] IA5String 'http://cps.letsencrypt.org'
 . . . . . . . . . . . . . . . . [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)
							00f00075005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016da91b37720000040300463044022027706bf3daf85a9d1514b9d7f43294791be03c2e5b7336e049edb4533e35110b02206c7e8b7af762ede053238466b5921f62bc2f6b445bb7af485ea0acb5e6061339007700293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016da91b35a00000040300483046022100cff2dbae46fb731ccd7739ef09aff4546365246ef13e6dbeee997b9d460cb030022100dcfbb42f65e36b71d13ff4ce49592cc50182d4828cdf89c8c894d17bce1f5500
 . . . . [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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