*.wam.edu.vn

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:26:2c:ca:18:40:87:c5:f3:5f:ae:ae:64:38:d3:57:71:c2 was issued on by Let's Encrypt.

With 2 subject alternative names this certificate can be used to secure multiple fqdn's. 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=*.wam.edu.vn

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:26:2c:ca:18:40:87:c5:f3:5f:ae:ae:64:38:d3:57:71:c2
Serial Number (int): 274327123105946814557634100840392090415554
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: cc:a2:a6:85:ce:a3:5c:42:64:69:78:5a:10:65:25:ca:0e:d2:ad:d4
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): b2:d7:ea:cb:37:07:d5:6a:b9:69:ef:13:3b:a5:d7:c4:b4:2c:5b:5b
Fingerprint (sha256): e9:b8:da:e2:30:f3:da:4b:3f:63:b5:0b:f7:20:b1:2a:e9:be:9d:47:55:12:54:7c:bd:18:27:b8:a4:09:bb:65

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 *.wam.edu.vn

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for *.wam.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

*.wam.edu.vn
wam.edu.vn

Other certificates including the domain name wam.edu.vn

(limited to 100 certificates)
*.s.wam.edu.vn
www.wam.edu.vn
*.portal.wam.edu.vn
wam.edu.vn
wam.edu.vn
s.wam.edu.vn
demowam.wam.edu.vn
wam.edu.vn
www.wam.edu.vn
wam.edu.vn
www.wam.edu.vn
demowam.wam.edu.vn
*.s.wam.edu.vn
demowam.wam.edu.vn
wam.edu.vn
demowam.wam.edu.vn
wam.edu.vn
*.s.wam.edu.vn
*.s.wam.edu.vn
*.wam.edu.vn
*.wam.edu.vn
wam.edu.vn
wam.edu.vn
*.wam.edu.vn
*.s.wam.edu.vn
demowam.wam.edu.vn
demowam.wam.edu.vn
wam.edu.vn
portal.wam.edu.vn
*.wam.edu.vn
*.wam.edu.vn
*.wam.edu.vn
*.wam.edu.vn
wam.edu.vn
*.s.wam.edu.vn
portal.wam.edu.vn

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAsIrOqeKhCb1A59ZDdaZQ
PrlxHFLdMwaF4WDM08MWMYAn90LbcbpknisMDArRIR/f78Lt05swE0XP6C84QDqr
GhfDR0c7cBbq9CyhIdkA3SfXnjTlT8EVbIqAup44CSDJ5XTj3OjaTZ1ICFTdqMQm
SF+/7xzV4Uti1pr2YPE8NkSN1Srf0sRln+LQzg4ehUNS8/KaBh6zADbVYby9RDKI
Hz4YiZUW2eadXd0LyVcwrNPpJ5aoBYDSIL2vkB2C2BHmBkJuDTuBoFzm6/JdTw+S
v9RlqvkA8ydwHr5k5d9ELQ0qap8WS1O98fSY7G4j3QLAGM0KSzw00JTKGMWwDJ1P
oQIDAQAB
-----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 274327123105946814557634100840392090415554
 . . . . . . . . [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 2019-09-07 10:57:52 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-12-06 10:57:52 +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:12|false] UTF8String '*.wam.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 22286390094775413001629706443280150798960949710362671552772169148653392243288303661906276406742512721223633008109360601107357326441741905883010387005684790769795989159494641208246436001121834813383647647397139886220894341227566971968829399514281963212688556538087256090047441518066523866211092747442568651338550770211674946943101930388315249813943770245831555873207437568179319646659983379670264517620216882871615483112871698663375517377742598417592794683909886724913649428455560926630430523402468728361819896702487979561285062721292183815276607637911109602990179743485239420408344357819754127621993478804001200623521
 . . . . . . . . . . . . . . . . . . . . [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)
							cca2a685cea35c426469785a106525ca0ed2add4
 . . . . . . . . . . . . . . . . [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 (28 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.wam.edu.vn'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'wam.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 (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 (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef007500e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe0000016d0b967589000004030046304402203a748292da10b467d4908d20795e271bde19b6c0b6e6f5ab227473fe3a8d5cf00220381d5715c213e9c439b90c8142937eab253ef77c962544a322d8dc82fb92062800760063f2dbcde83bcc2ccf0b728427576b33a48d61778fbd75a638b1c768544bd88d0000016d0b9675a5000004030047304502207ae78ef4eb52940a74cf0edf3e27e8eff74c8fd51aca7a9facaf8ff99b529d97022100cf3cc36dc14b8f8ae6c9563b08ffb1eca0babae6915df124395ff033f7a64c66
 . . . . [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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