id.ou.edu.vn
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:9f:9b:56:9c:c8:40:cb:59:14:31:5e:9f:2a:6d:f3:15:8a 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=id.ou.edu.vn
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:9f:9b:56:9c:c8:40:cb:59:14:31:5e:9f:2a:6d:f3:15:8aSerial Number (int): 315648234192508035131770915627510606796170
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 5c:9e:25:05:4e:35:fa:bb:d8:9a:e7:e1:2f:8c:39:81:21:ec:f1:da
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): bf:db:99:f5:b0:09:ac:a2:f4:77:bb:f9:aa:ad:6c:68:0f:b7:bc:e2
Fingerprint (sha256): 22:c7:d9:11:a5:4a:54:9b:90:e5:0b:bd:88:15:67:82:6b:e5:26:35:8e:10:f1:2e:e2:e5:a0:9e:6f:6b:d4:83
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate id.ou.edu.vn
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for id.ou.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
id.ou.edu.vn
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(limited to 100 certificates)
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help.webspecia.in
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id.ou.edu.vn
journalofscience.ou.edu.vn
help.webspecia.in
id.ou.edu.vn
support.okra.ng
id.ou.edu.vn
www.patolo.jp
support.zea-iot.com
id.ou.edu.vn
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id.ou.edu.vn
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elosupport.ou.edu.vn
id.ou.edu.vn
id.ou.edu.vn
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kqtkden.ou.edu.vn
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kqtkden.ou.edu.vn
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pm.ou.edu.vn
id.ou.edu.vn
sg.support.te-cloud.advantest.com
journalofscience.ou.edu.vn
sg.support.te-cloud.advantest.com
id.ou.edu.vn
id.ou.edu.vn
id.ou.edu.vn
kqtkd.ou.edu.vn
www.patolo.jp
help.webspecia.in
support.1rink.com
id.ou.edu.vn
support.sisoy.id
ceats.ou.edu.vn
kqtkden.ou.edu.vn
id.ou.edu.vn
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support.vicoimaging.com
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lms.ou.edu.vn
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zoa.ou.edu.vn
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devlms.ou.edu.vn
id.ou.edu.vn
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support.okra.ng
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devlms.ou.edu.vn
kqtkden.ou.edu.vn
kqtkden.ou.edu.vn
id.ou.edu.vn
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Certificate
The complete raw certificate details for id.ou.edu.vn in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFTjCCBDagAwIBAgISA5+bVpzIQMtZFDFenypt8xWKMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTAxMTIwNDUwMjJaFw0x OTA0MTIwNDUwMjJaMBcxFTATBgNVBAMTDGlkLm91LmVkdS52bjCCASIwDQYJKoZI hvcNAQEBBQADggEPADCCAQoCggEBAJbQirKDCnlE/izhbk7VXwvEnQc/o7rSSBtA utb/K/6KYw95ZvHtFA/y9bfen2hZqmBa+fQyG9f+msKVTIydQV4WOeAPkN58ezH5 bQySu4PCgRABjOj+fLlYANRV/q2Uvx6tJtgHE3GtAHuxkyHYB6aT8KXZnHO7UQYS 83QmhlNso7jmgdzZImR4iNZ/C1LaGTUJYDw2uXyz0vpAlPsTtoujLK2NeBud0WDz W0mqBhywGE/eJ/M+ZTc2l9DnKuQcEQQQ1MbDADxc23WgCnrEbgQa6qk50R7WvQup IiIsWoLnZXGw1soTJ4dALlEVbTmeFZUIaayBC9SpOgZcrx/L2isCAwEAAaOCAl8w ggJbMA4GA1UdDwEB/wQEAwIFoDAdBgNVHSUEFjAUBggrBgEFBQcDAQYIKwYBBQUH AwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4EFgQUXJ4lBU41+rvYmufhL4w5gSHs8dow HwYDVR0jBBgwFoAUqEpqYwR93brm0Tm3pkVl7/Oo7KEwbwYIKwYBBQUHAQEEYzBh MC4GCCsGAQUFBzABhiJodHRwOi8vb2NzcC5pbnQteDMubGV0c2VuY3J5cHQub3Jn MC8GCCsGAQUFBzAChiNodHRwOi8vY2VydC5pbnQteDMubGV0c2VuY3J5cHQub3Jn LzAXBgNVHREEEDAOggxpZC5vdS5lZHUudm4wTAYDVR0gBEUwQzAIBgZngQwBAgEw NwYLKwYBBAGC3xMBAQEwKDAmBggrBgEFBQcCARYaaHR0cDovL2Nwcy5sZXRzZW5j cnlwdC5vcmcwggECBgorBgEEAdZ5AgQCBIHzBIHwAO4AdQDiaUuuJujpQAnohhu2 O4PUPuf+dIj7pI8okwGd3fHb/gAAAWhAnHdfAAAEAwBGMEQCIAEW8EMFkJR3kMem N9mBc5ZwQVm62ccYNdgPrTFRAIQwAiBqz9S792uFTEKjoUwK9jn7RzKWjjgbZ0TF jJaY5ac6QwB1ACk8UZZUyDlluqpQ/FgH1Ldvv1h6KXLcpMMM9OVFR/R4AAABaECc d5AAAAQDAEYwRAIgEjRX5WW4E4b9CyHISqbP0YACim5y7huMRQp3BQCUioQCIBSt 6+aBrzR51g3kx8V1fB8TFskv9z6lc55bmFya6PvPMA0GCSqGSIb3DQEBCwUAA4IB AQAGa6OrhaikgU8U3SLwRdVmdZWD1f6ldab3gQolfKzwKZZt01gOOweggYD0QY/d hgn3jP8WI9rW14OdZrq7mPkul1jAihGU5sleu/oQG1fr+Y8pe+PJ7MU7NB29xxVO qqHiMMcBsmju8RzKfkZIRyZcPFYUAs9k67tkpRPgNPbSZpORQcpepZK2tlyQncPD s6tcoBxDLPoeW5BdFxtEkYhm6l6NtRhKZuL81rj4q+Tm1FcXZVLVF3AHNIC70qKT 3b9Dn5TV8qWNvDUBepq2Udo3+y07mTngAmz9ir3gLwCA8EOyhXQSMuadeLojTZb7 hEhPZh+zX6pF36iyGM1Fqk3g -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAltCKsoMKeUT+LOFuTtVf C8SdBz+jutJIG0C61v8r/opjD3lm8e0UD/L1t96faFmqYFr59DIb1/6awpVMjJ1B XhY54A+Q3nx7MfltDJK7g8KBEAGM6P58uVgA1FX+rZS/Hq0m2AcTca0Ae7GTIdgH ppPwpdmcc7tRBhLzdCaGU2yjuOaB3NkiZHiI1n8LUtoZNQlgPDa5fLPS+kCU+xO2 i6MsrY14G53RYPNbSaoGHLAYT94n8z5lNzaX0Ocq5BwRBBDUxsMAPFzbdaAKesRu BBrqqTnRHta9C6kiIixagudlcbDWyhMnh0AuURVtOZ4VlQhprIEL1Kk6BlyvH8va KwIDAQAB -----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 315648234192508035131770915627510606796170 . . . . . . . . [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 2019-01-12 04:50:22 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-04-12 04:50:22 +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 'id.ou.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 19038581532512647038585915675324106547046445019746162999542439883664708171488003653139562067410772002831244970081206953852097307336634887298357045635313575825602789752880377763547679930152234853202355220796213163566316303495172001751911589556921959872883586553379388468730378893742613074607266316798839722411276611649387023778919811692328313743548946006161976875970583234169457050010287779302158965590975702829746950455597947300695007156140848217082340036778559410859336453647039788418139770612897365667000847462037597653781312788517865783964306856582198158565737203377488238881178986496653759496097435416883494640171 . . . . . . . . . . . . . . . . . . . . [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) 5c9e25054e35fabbd89ae7e12f8c398121ecf1da . . . . . . . . . . . . . . . . [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 (16 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'id.ou.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 (243 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (240 bytes) 00ee007500e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe00000168409c775f000004030046304402200116f0430590947790c7a637d9817396704159bad9c71835d80fad315100843002206acfd4bbf76b854c42a3a14c0af639fb4732968e381b6744c58c9698e5a73a43007500293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f47800000168409c779000000403004630440220123457e565b81386fd0b21c84aa6cfd180028a6e72ee1b8c450a770500948a84022014adebe681af3479d60de4c7c5757c1f1316c92ff73ea5739e5b985c9ae8fbcf . . . . [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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