event.speak-up.edu.vn
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:be:1d:f1:0f:ba:d7:3a:95:f0:63:c4:f7:a1:18:a1:ed:12 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=event.speak-up.edu.vn
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:be:1d:f1:0f:ba:d7:3a:95:f0:63:c4:f7:a1:18:a1:ed:12Serial Number (int): 326030306784718909836989923832317217991954
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 36:80:98:64:f4:92:da:52:60:9f:b3:cf:b2:a1:7a:5d:1b:d1:9c:23
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 5a:50:f0:6a:06:5c:8c:4d:eb:34:0d:2b:8a:1f:4e:6b:1b:40:58:34
Fingerprint (sha256): 74:53:8e:f9:69:3d:86:bc:b2:40:f7:b9:b8:50:f4:d4:5d:c0:22:db:e7:bb:2e:9c:72:eb:5d:55:b7:e2:be:f1
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate event.speak-up.edu.vn
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for event.speak-up.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
event.speak-up.edu.vn
Other certificates including the domain name speak-up.edu.vn
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speak-up.edu.vn
Certificate
The complete raw certificate details for event.speak-up.edu.vn in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFYjCCBEqgAwIBAgISA74d8Q+61zqV8GPE96EYoe0SMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTEwMjQwMzEyNDRaFw0y MDAxMjIwMzEyNDRaMCAxHjAcBgNVBAMTFWV2ZW50LnNwZWFrLXVwLmVkdS52bjCC ASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAKgaevKRKQ/g6TvMtSsDL7rf aMulrD2Hn6Tv1tiDgvkpRfnClB8+stgc2ASNVi2ZpgoRMKg3l2K/366up0NyKVu1 6hHPi7GHC3IDAw7HAXtKz1U2a9JHkz47839hnPz8HbxcEAt2IDST+Z1SdOXTFtHh kRtg+63RUHyIpBBWfM/d/AO4zKmC7ZTL+hXTrKi7ag0EEcWoZqEFV3FMmMXQIlMd 6ilwlqfo3Qeq6GV1ojH1O8VqDUwYOnJf4sGQEnu09azimksch4htrNDxSX+8pbFk UkB64QdoRyrfMKdyoGT2SBlQNTAOH5s1CPoAwxJ3LAiyMAXkY+RYYzsd+oGx18MC AwEAAaOCAmowggJmMA4GA1UdDwEB/wQEAwIFoDAdBgNVHSUEFjAUBggrBgEFBQcD AQYIKwYBBQUHAwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4EFgQUNoCYZPSS2lJgn7PP sqF6XRvRnCMwHwYDVR0jBBgwFoAUqEpqYwR93brm0Tm3pkVl7/Oo7KEwbwYIKwYB BQUHAQEEYzBhMC4GCCsGAQUFBzABhiJodHRwOi8vb2NzcC5pbnQteDMubGV0c2Vu Y3J5cHQub3JnMC8GCCsGAQUFBzAChiNodHRwOi8vY2VydC5pbnQteDMubGV0c2Vu Y3J5cHQub3JnLzAgBgNVHREEGTAXghVldmVudC5zcGVhay11cC5lZHUudm4wTAYD VR0gBEUwQzAIBgZngQwBAgEwNwYLKwYBBAGC3xMBAQEwKDAmBggrBgEFBQcCARYa aHR0cDovL2Nwcy5sZXRzZW5jcnlwdC5vcmcwggEEBgorBgEEAdZ5AgQCBIH1BIHy APAAdwCyHgXMi6LNiiBOh2b5K7mKJSBna9r6cOeySVMt74uQXgAAAW37937vAAAE AwBIMEYCIQDIKgTdhrTHzTTrgxrXm6UyCMYfZE4Djhq10H6A2VBe/QIhAO1hP1Lo o03Jy6fSoIiecqHIFkr0cKLNu/aZpJ0hSlZTAHUAXqdz+d9WwOe1Nkh90EngMnqR mgyEoRIShBh1loFxRVgAAAFt+/eAqgAABAMARjBEAiAn95iLA3GfULK8hdPBXiwQ 1tcDzs4bm24Y6J/Y8BMCsAIgUw8mK/d7b7yeUTDRfEsOXWJyzWqCI7f4deF7wnVs OhwwDQYJKoZIhvcNAQELBQADggEBAHF+4MItKc8EIPYTmLNupqMms7MWRXngrnor hkUOu7PG6hMFDOZYQhKGx6dfHvgI2WLxHkHOuPrIbXdnF+z2895KlihCXfdpqfV8 QvGIL5JLzonQadOGyHkSnxII/eVfLyHp03HhL7ov+jHFMtyVCw3u5t0b9GdmNx0f 0xMPBsf3z9XxdamIn71C6B6M8uQLLk3ahTpsvP8wVGW+r2RcHUS4STRkrg3aPGvh ypIaYOrsWVVxI695bADy2FdmZfOOExKGO79om1RCaDu90u6h5WvI+zBWnhcscBWm y3Ew1eoELjJ/Fm6cnts0748sspDDkj/jcEdjJgKgrg7cRFqrfjY= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAqBp68pEpD+DpO8y1KwMv ut9oy6WsPYefpO/W2IOC+SlF+cKUHz6y2BzYBI1WLZmmChEwqDeXYr/frq6nQ3Ip W7XqEc+LsYcLcgMDDscBe0rPVTZr0keTPjvzf2Gc/PwdvFwQC3YgNJP5nVJ05dMW 0eGRG2D7rdFQfIikEFZ8z938A7jMqYLtlMv6FdOsqLtqDQQRxahmoQVXcUyYxdAi Ux3qKXCWp+jdB6roZXWiMfU7xWoNTBg6cl/iwZASe7T1rOKaSxyHiG2s0PFJf7yl sWRSQHrhB2hHKt8wp3KgZPZIGVA1MA4fmzUI+gDDEncsCLIwBeRj5FhjOx36gbHX wwIDAQAB -----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 326030306784718909836989923832317217991954 . . . . . . . . [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 2019-10-24 03:12:44 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-01-22 03:12:44 +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 'event.speak-up.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 21221093139042140334360776213748579829661305882634889831561581972914626463942789505612125049431633071790041012055101462336581650470993305686136371326239438948020953420601258372889175032052562719891929134651240933662093580581550504495372498769837886126013167395891435670447508687614445350245507062294682237195416736561155926992921923753920178631995171465409671410473579959379937027339625488061011422081401169082176599152153515105182921674416164762038217410020771697856303653583437320683387596827011201727577737755178687293129414875099729295929066213274391623403235362317418208011427113663660037236240408569175895824323 . . . . . . . . . . . . . . . . . . . . [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) 36809864f492da52609fb3cfb2a17a5d1bd19c23 . . . . . . . . . . . . . . . . [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 (25 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'event.speak-up.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 (245 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes) 00f0007700b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016dfbf77eef0000040300483046022100c82a04dd86b4c7cd34eb831ad79ba53208c61f644e038e1ab5d07e80d9505efd022100ed613f52e8a34dc9cba7d2a0889e72a1c8164af470a2cdbbf699a49d214a56530075005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016dfbf780aa0000040300463044022027f7988b03719f50b2bc85d3c15e2c10d6d703cece1b9b6e18e89fd8f01302b00220530f262bf77b6fbc9e5130d17c4b0e5d6272cd6a8223b7f875e17bc2756c3a1c . . . . [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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