ctctqlsv.wp.blu.edu.vn
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 04:97:fa:9b:a5:62:85:b4:e2:50:e4:9a:b4:87:c4:2b:40:61 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=ctctqlsv.wp.blu.edu.vn
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 04:97:fa:9b:a5:62:85:b4:e2:50:e4:9a:b4:87:c4:2b:40:61Serial Number (int): 400164896291465321146597869618703224225889
Serial Number lenght: 139 bits, 18 octets
SubjectKeyId: 1e:f2:e2:e5:63:9f:fb:13:4f:cb:c0:04:c4:23:96:30:e5:83:d8:7c
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 52:10:29:e9:1f:1a:3f:97:45:80:82:26:7b:e7:c1:24:6b:8c:21:08
Fingerprint (sha256): 70:a1:88:7c:30:7f:30:3b:2b:6c:a9:ca:d9:b7:8a:98:3b:dd:4f:d0:73:6a:3f:7d:06:34:5a:0b:68:5f:3e:27
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate ctctqlsv.wp.blu.edu.vn
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for ctctqlsv.wp.blu.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
ctctqlsv.wp.blu.edu.vn
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Certificate
The complete raw certificate details for ctctqlsv.wp.blu.edu.vn in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFYzCCBEugAwIBAgISBJf6m6VihbTiUOSatIfEK0BhMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTAyMTYxNjQ3NTdaFw0x OTA1MTcxNjQ3NTdaMCExHzAdBgNVBAMTFmN0Y3RxbHN2LndwLmJsdS5lZHUudm4w ggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQCkYyD8Dq5JhCDkrxSSn297 cO8UhIGtVhh4K8NdbFOM5GZHfV8jkyasAtaN6EuA8mA4nOE3chidesaIdOkUoaNf W8sz+JYkIp7PxmLQToY30sAbTGfrUsaGOBkMWcnzkuXNI4dTk8DSOgxdJWu2tHlY broOJn9IVgighTA+1yxiGl7/mV6d3/5vVwUJN1MqETi5R27gdl8ARVn3owa+2VgB WqVIoSP6j8wk9pl45FXbHp6OgUATU3NjQT68aW7AjbEWbEffxN9OR4CFU8160YRm 4KayIcLJeK5jf/IrLt7uJunjoKqQS4keVyAH3XL0NG2xHXb9JuiwY7hr0oO/m3wT AgMBAAGjggJqMIICZjAOBgNVHQ8BAf8EBAMCBaAwHQYDVR0lBBYwFAYIKwYBBQUH AwEGCCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYDVR0OBBYEFB7y4uVjn/sTT8vA BMQjljDlg9h8MB8GA1UdIwQYMBaAFKhKamMEfd265tE5t6ZFZe/zqOyhMG8GCCsG AQUFBwEBBGMwYTAuBggrBgEFBQcwAYYiaHR0cDovL29jc3AuaW50LXgzLmxldHNl bmNyeXB0Lm9yZzAvBggrBgEFBQcwAoYjaHR0cDovL2NlcnQuaW50LXgzLmxldHNl bmNyeXB0Lm9yZy8wIQYDVR0RBBowGIIWY3RjdHFsc3Yud3AuYmx1LmVkdS52bjBM BgNVHSAERTBDMAgGBmeBDAECATA3BgsrBgEEAYLfEwEBATAoMCYGCCsGAQUFBwIB FhpodHRwOi8vY3BzLmxldHNlbmNyeXB0Lm9yZzCCAQMGCisGAQQB1nkCBAIEgfQE gfEA7wB1AOJpS64m6OlACeiGG7Y7g9Q+5/50iPukjyiTAZ3d8dv+AAABaPdsAoUA AAQDAEYwRAIgSL5x716+ILlzweXjDcJjcUIZEsWuE+xlTW4/TjBUYeMCIBky1OQR KU3rkhlcJYqq3YjtE/Tc30UEey5yPnhU7HdtAHYAY/Lbzeg7zCzPC3KEJ1drM6SN YXePvXWmOLHHaFRL2I0AAAFo92wEbAAABAMARzBFAiAKum+3pJXZmS+JZwREC5Rq sqTdaRLlNmmgGqvIaCYS5QIhAJjsyh1p0b7cxilRvMf6CZfyt835UXym6QE+1/MN cMEiMA0GCSqGSIb3DQEBCwUAA4IBAQAsMr5OcwbeyrBMMBLAFQx6rAo0fhk4M09d sbJBODCuEdTmGSiS9bdsNYSTw/3dZPPWsoTPR9fFSHoqm7YIn8N6R2CxcEvuWuZc xLbWG24DkvRlwwT5TOV7P7h6W3X0NpNCDfQeRkGv3nW3bHjIkJk87VcUIQbJW5V9 7Sga4eLYlI+OdgjOUPFa+QfllhHtCeqZSx9xBvqPXQ7P20M3xEx0+4lanZ6rz9ty wUSr+tBEU44v8eo2xVmgllEguU/+3WhJnut05yG4PR148iNRM0pIYkgeaRmTQMZX OJZqga6JuqCrzus+3bCcmuYYbVEt9rSQ6SAtCShwwAyAjArIUkbq -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEApGMg/A6uSYQg5K8Ukp9v e3DvFISBrVYYeCvDXWxTjORmR31fI5MmrALWjehLgPJgOJzhN3IYnXrGiHTpFKGj X1vLM/iWJCKez8Zi0E6GN9LAG0xn61LGhjgZDFnJ85LlzSOHU5PA0joMXSVrtrR5 WG66DiZ/SFYIoIUwPtcsYhpe/5lend/+b1cFCTdTKhE4uUdu4HZfAEVZ96MGvtlY AVqlSKEj+o/MJPaZeORV2x6ejoFAE1NzY0E+vGluwI2xFmxH38TfTkeAhVPNetGE ZuCmsiHCyXiuY3/yKy7e7ibp46CqkEuJHlcgB91y9DRtsR12/SbosGO4a9KDv5t8 EwIDAQAB -----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 400164896291465321146597869618703224225889 . . . . . . . . [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 2019-02-16 16:47:57 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-05-17 16:47:57 +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 'ctctqlsv.wp.blu.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 20751964270307164016025242426214613951299929145278743802326525853948923676898910144242800850122287226668181840539271782368225947973961180749290162651202612950857745484498238577001078401569464054959049071200494767791422834444947325835645051449590042867950946072849883108119741202168485278943647311276709657387486922363982849425599871950588953567488690821961263392643015001895386430749641223558146821092117549387380822101414136078172565844858535966894052139130987314765615552599572447419053369255781305633804148811169567875621411891488950109163441491252078714792778682566158779006153205746524039046707250929167400401939 . . . . . . . . . . . . . . . . . . . . [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) 1ef2e2e5639ffb134fcbc004c4239630e583d87c . . . . . . . . . . . . . . . . [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 (26 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'ctctqlsv.wp.blu.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) 00ef007500e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe00000168f76c02850000040300463044022048be71ef5ebe20b973c1e5e30dc26371421912c5ae13ec654d6e3f4e305461e302201932d4e411294deb92195c258aaadd88ed13f4dcdf45047b2e723e7854ec776d00760063f2dbcde83bcc2ccf0b728427576b33a48d61778fbd75a638b1c768544bd88d00000168f76c046c000004030047304502200aba6fb7a495d9992f896704440b946ab2a4dd6912e53669a01aabc8682612e502210098ecca1d69d1bedcc62951bcc7fa0997f2b7cdf9517ca6e9013ed7f30d70c122 . . . . [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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