sz.speak-up.edu.vn
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:f7:05:98:cf:d9:3d:66:47:cd:e4:b5:d8:5d:5b:be:be:56 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=sz.speak-up.edu.vn
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:f7:05:98:cf:d9:3d:66:47:cd:e4:b5:d8:5d:5b:be:be:56Serial Number (int): 345394042009524263745099207105398446145110
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: fc:48:83:a6:87:fe:f8:8b:aa:8a:d3:88:1f:6d:4a:61:0a:d8:ae:55
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 8d:b7:ab:18:a0:d6:b1:7a:77:4e:42:05:e3:4e:30:19:0a:75:49:18
Fingerprint (sha256): 63:4a:a5:3b:db:cc:53:20:9b:a0:b0:fb:7f:4d:df:ba:f5:8f:c2:d5:3b:86:c3:92:c6:6a:dd:c6:40:55:75:d9
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate sz.speak-up.edu.vn
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for sz.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
sz.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 sz.speak-up.edu.vn in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFXjCCBEagAwIBAgISA/cFmM/ZPWZHzeS12F1bvr5WMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTAzMDYwNDI5MDFaFw0x OTA2MDQwNDI5MDFaMB0xGzAZBgNVBAMTEnN6LnNwZWFrLXVwLmVkdS52bjCCASIw DQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBANOauNABo7uxHPgI4gnhq5uQ3QS0 kfsd8KQUuPfmtaeo91SLH2WQLegTfTgiqcUGnJSuk6y21b5QbzGxBoQRi1L2aGFl SWKQYLb6uzMP0iAsqKuaL47RTx89A+7xS0aQDvj9i+IFvJ2wzI23U6YtvzKXFnPJ QW5s4jarmrgejKgPFM/GD9X9Hiekt0MR6BJS4beVQUpo0fipwZ2V9aZ/wK4jwRRY /QPRNJeaqg78ZV/VMzfVZRLOqcf4P29jSySL1AQ3A6cvBJkQqTIoVfCrh7VO0uO+ lLqd+JHOy6iX6wUt5+R9/QZDKpVAyIpepIDmzX1NMnBjE83neggkr93VRqkCAwEA AaOCAmkwggJlMA4GA1UdDwEB/wQEAwIFoDAdBgNVHSUEFjAUBggrBgEFBQcDAQYI KwYBBQUHAwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4EFgQU/EiDpof++IuqitOIH21K YQrYrlUwHwYDVR0jBBgwFoAUqEpqYwR93brm0Tm3pkVl7/Oo7KEwbwYIKwYBBQUH AQEEYzBhMC4GCCsGAQUFBzABhiJodHRwOi8vb2NzcC5pbnQteDMubGV0c2VuY3J5 cHQub3JnMC8GCCsGAQUFBzAChiNodHRwOi8vY2VydC5pbnQteDMubGV0c2VuY3J5 cHQub3JnLzAdBgNVHREEFjAUghJzei5zcGVhay11cC5lZHUudm4wTAYDVR0gBEUw QzAIBgZngQwBAgEwNwYLKwYBBAGC3xMBAQEwKDAmBggrBgEFBQcCARYaaHR0cDov L2Nwcy5sZXRzZW5jcnlwdC5vcmcwggEGBgorBgEEAdZ5AgQCBIH3BIH0APIAdwDi aUuuJujpQAnohhu2O4PUPuf+dIj7pI8okwGd3fHb/gAAAWlRefcEAAAEAwBIMEYC IQCb9L7zFE8U0ksSk04p5S2FYNmGVrSo7T663n1RTLfF5gIhAJzB3E24LtsYcb3L nFfr5KtFlys6bW0iCY5OVzCCoJ6YAHcAKTxRllTIOWW6qlD8WAfUt2+/WHopctyk wwz05UVH9HgAAAFpUXn4+AAABAMASDBGAiEAqM/J9uglyRP31DXLUOt1zSoGZ3Y7 6biBPiAlZIgVqrMCIQCZ2RvoAQDIdfEyd/54L7MwKn4+q/OfDZpFiq9yWeOIsjAN BgkqhkiG9w0BAQsFAAOCAQEAYkOvnqRKGtcKuo1ew2evyQbeTm1Td9W109ACd9hm DtWRyUi085nDqXRAi7Ypaoq0octmA0yBtrEnGEbBzgfuSNKrLjhA4eWdYSLq6CHM hmiY0Bk5szyVU6rRpp1+1rsSkAcd/NKQU7a2HPWb8SSEMUU/MFc9lZFfaxVOjPNb WM758Lb2eTD7++xkfVp++744R2chaRjPoWRG3WBb9h0zzk8mtBFtrVW6gMUHpXqZ bAZ85c+LKm+YPqHpnoFv5IhArnbMklsW8V3wTWCCruD6FHvn3ywaz3hRMmRLSxvV pOqCtMv0UZ+IxaBap55ebscp8gzsvy2rbxbNyyoWTXuwXQ== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA05q40AGju7Ec+AjiCeGr m5DdBLSR+x3wpBS49+a1p6j3VIsfZZAt6BN9OCKpxQaclK6TrLbVvlBvMbEGhBGL UvZoYWVJYpBgtvq7Mw/SICyoq5ovjtFPHz0D7vFLRpAO+P2L4gW8nbDMjbdTpi2/ MpcWc8lBbmziNquauB6MqA8Uz8YP1f0eJ6S3QxHoElLht5VBSmjR+KnBnZX1pn/A riPBFFj9A9E0l5qqDvxlX9UzN9VlEs6px/g/b2NLJIvUBDcDpy8EmRCpMihV8KuH tU7S476Uup34kc7LqJfrBS3n5H39BkMqlUDIil6kgObNfU0ycGMTzed6CCSv3dVG qQIDAQAB -----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 345394042009524263745099207105398446145110 . . . . . . . . [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 2019-03-06 04:29:01 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-06-04 04:29:01 +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 'sz.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 26712578572125427871429580207320058733639584635074921650328688547100732296986460374771446125371785929772625048517544723007044819167817527416368426061640131326195510717520108528256205331391595969556342982572274111949216544477617265046530819648160747181821456958868240417048855908850628920869779781931430801827917563690491915702816703560556688131931503282374133482684125487653898232537691055472837020464439807027148856924224591964522932100784548105681359472922102605738830343139433734301816911665737323328305706547987430542188425490935816123466120912467274234347243463593072444971923784951128793787900077138697172371113 . . . . . . . . . . . . . . . . . . . . [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) fc4883a687fef88baa8ad3881f6d4a610ad8ae55 . . . . . . . . . . . . . . . . [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 (22 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'sz.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 (247 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (244 bytes) 00f2007700e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe000001695179f70400000403004830460221009bf4bef3144f14d24b12934e29e52d8560d98656b4a8ed3ebade7d514cb7c5e60221009cc1dc4db82edb1871bdcb9c57ebe4ab45972b3a6d6d22098e4e573082a09e98007700293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f478000001695179f8f80000040300483046022100a8cfc9f6e825c913f7d435cb50eb75cd2a0667763be9b8813e2025648815aab302210099d91be80100c875f13277fe782fb3302a7e3eabf39f0d9a458aaf7259e388b2 . . . . [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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