utm.edu.vn

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:a4:75:b1:cf:23:58:b2:3c:03:ae:f1:2a:a3:0a:42:01:67 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=utm.edu.vn

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:a4:75:b1:cf:23:58:b2:3c:03:ae:f1:2a:a3:0a:42:01:67
Serial Number (int): 404411894815384914213074163403851208720743
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 9f:af:c7:ef:c4:e5:9f:43:02:6e:98:40:43:d7:c1:21:c4:5c:16:44
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): ed:13:b9:87:3a:1b:91:b1:2d:36:c4:7e:8b:e2:f4:e0:7e:e7:36:6a
Fingerprint (sha256): 22:a2:c5:1a:9c:cf:6a:ae:ef:a8:60:3a:e2:87:d8:8d:3c:25:56:ca:8d:ef:6c:bd:ac:38:2a:15:fb:7d:8e:e6

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 utm.edu.vn

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for utm.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

utm.edu.vn
www.utm.edu.vn

Other certificates including the domain name utm.edu.vn

(limited to 100 certificates)

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA9wHNP4I0Z2GpgzKLBd99
v9DSKN1rGkZ48dAPSc3a+snqbWiiTJImdoEpomNhJYmxhNND4DFSWV5F4suVP4xs
2gUP7DbpWHiHMwReUoba1qKfyN3a/9tpDoQkfzQ5HE4FKEP16AL9+G0eexrMfJdy
1Z3Dyo1WC138I3wwNCGgwRk95zEt7sdS8p4oXaXvxZJA+AkAr2MR1ZDccmv4WXug
GjPPgtWdlsGwH3X6JpYQlgbU1A1BwLY/+wMFhAUBo4x9mla0sWeGtxUMcDHkShr5
Acp7tTPs/tyffqyT1p0eliUruNQkPUWJcZF0YkdnucZcIkFOnAYPy61Fki7D/QnY
CQIDAQAB
-----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 404411894815384914213074163403851208720743
 . . . . . . . . [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 2018-05-01 20:22:50 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2018-07-30 20:22:50 +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 'utm.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 31181749802810528762427466343202607023898785801610083239901064820056649914815307666757452446639162797648584684169499008093591298567692301455378692778779045168067077174017112624767704108418701440727749631473654690052746242331579507114527469529142679303942646255931015406846255227952144733062676410323598444252701336555387231024463489226290061101741090696856100600050206003914893877251034232450477909345903439872917912669315689650985283700564239133070173442766570847544687309905740289782032135919822567712232216959023715315853096043070074843263127330203885900059355670723207162103157793391879910891658356517114550540297
 . . . . . . . . . . . . . . . . . . . . [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)
							9fafc7efc4e59f43026e984043d7c121c45c1644
 . . . . . . . . . . . . . . . . [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 (30 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'utm.edu.vn'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.utm.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 (246 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 1.3.6.1.5.5.7.2.2 (unotice)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:12|false] UTF8String 'This Certificate may only be relied upon by Relying Parties and only in accordance with the Certificate Policy found at https://letsencrypt.org/repository/'
 . . . . . . . . . . . . . . . . [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)
							00f10076005581d4c2169036014aea0b9b573c53f0c0e43878702508172fa3aa1d0713d30c000001631d962a6a000004030047304502207e027cc6d401dea112239ccae3c96e34dd54f3de26678d402427493cf8bc021e022100feb5be6d4d17a569d4b4c660e3c21c67491d772781fe5a8d5e522c54495e153b007700293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f478000001631d962a570000040300483046022100de210440b6edae23befc943097901c7e4934e5346b2e459a4b69366e03da7852022100f291e622a62dda315641922044f97ccdf66fca08c2f0e88ee6891065f400c6d6
 . . . . [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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