tocongdoan.wp.blu.edu.vn
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:f6:58:3b:52:60:00:82:6f:94:16:eb:63:68:41:ab:e2:1b 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=tocongdoan.wp.blu.edu.vn
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:f6:58:3b:52:60:00:82:6f:94:16:eb:63:68:41:ab:e2:1bSerial Number (int): 345163600137738976891584820575276020523547
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 45:7f:35:d2:79:05:a6:75:14:e7:aa:d7:65:11:45:38:2c:aa:7f:82
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 32:5a:3a:c0:6c:e1:18:8a:04:ab:ae:91:fe:d1:1d:65:73:f6:81:fc
Fingerprint (sha256): 67:62:18:4d:76:e6:2c:22:cc:3a:28:70:b5:b3:56:5a:13:00:25:6c:f6:20:ec:6f:fd:f9:b3:08:d8:79:0e:eb
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate tocongdoan.wp.blu.edu.vn
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for tocongdoan.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
tocongdoan.wp.blu.edu.vn
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Certificate
The complete raw certificate details for tocongdoan.wp.blu.edu.vn in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFaDCCBFCgAwIBAgISA/ZYO1JgAIJvlBbrY2hBq+IbMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTEyMDUxNjUxMjJaFw0y MDAzMDQxNjUxMjJaMCMxITAfBgNVBAMTGHRvY29uZ2RvYW4ud3AuYmx1LmVkdS52 bjCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAOhNy/EQ1qc+vU8TXTJS 5kFWT7I+XWk0CrYGg6fUwQEj2MYf5arrjd+OM5jay0e+oY7MKcDaApr1znr6iur3 SF9GnLZdtIO2JNYJKspyQspsPhgvYUGSzamJPK2Hw9QE2MevDpSiFL/HEouOHTjb w+M6EFBuQawLVmV+AOJUW0+NRVynLVGGfIDivJtPD7ZfYo1nGjeDdABytm6zetI7 fpN23ydHlWwBZ0Iuc3RTkSFZtelyxh6pBZ/oGacetekfkC2nblXRVgLAcqlwaDVK 2POwfWZA3enj7qaLvg3cYtHRxy+Y/8h5Aeo94Gzs0J/0E8o6Rd2Lj6cWvqnV05HS NA0CAwEAAaOCAm0wggJpMA4GA1UdDwEB/wQEAwIFoDAdBgNVHSUEFjAUBggrBgEF BQcDAQYIKwYBBQUHAwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4EFgQURX810nkFpnUU 56rXZRFFOCyqf4IwHwYDVR0jBBgwFoAUqEpqYwR93brm0Tm3pkVl7/Oo7KEwbwYI KwYBBQUHAQEEYzBhMC4GCCsGAQUFBzABhiJodHRwOi8vb2NzcC5pbnQteDMubGV0 c2VuY3J5cHQub3JnMC8GCCsGAQUFBzAChiNodHRwOi8vY2VydC5pbnQteDMubGV0 c2VuY3J5cHQub3JnLzAjBgNVHREEHDAaghh0b2Nvbmdkb2FuLndwLmJsdS5lZHUu dm4wTAYDVR0gBEUwQzAIBgZngQwBAgEwNwYLKwYBBAGC3xMBAQEwKDAmBggrBgEF BQcCARYaaHR0cDovL2Nwcy5sZXRzZW5jcnlwdC5vcmcwggEEBgorBgEEAdZ5AgQC BIH1BIHyAPAAdgDwlaRZ8gDRgkAQLS+TiI6tS/4dR+OZ4dA0prCoqo6ycwAAAW7X MBRBAAAEAwBHMEUCIDsv1+4NT8/hk74ZnD1+lk7mi8E3gmreFJXy6hkbAOq+AiEA 7R3X5coznE6BDMfU1VZPDyqiwvYsVqgMhnSqz/Sh000AdgAHt1wb5X1o//Gwxh0j Fce65ld8V5S3au68YToaadOiHAAAAW7XMBSYAAAEAwBHMEUCIHG6w/4SFPEiI3Dz fbqfW7Vvitshhloa8+2t69R5NmPgAiEAzz09v7PCxwsPPNubtglCBGkv0E4eUuG1 XWGSoSlfBJUwDQYJKoZIhvcNAQELBQADggEBADzHPoAU9ZxitV8YulThhXQkRCav GIAgTn001pYAq9H3gNveX3OoFM35fwXpXro9zopoXIyn2tS4NKtgWoydd6/MBFst xJHBo16l6umyybaTDhHcMH6VPJ1rH9/b+bx1YcRFtNnErd8TMsWpp26yZF7JmC+t 3TZBYvUwhtr9Alv91PFRe5lYD6/ju1qD7aVRWHiRCf8Cs06NWDpt2qdoKAh5cKf8 sCSD6QU40wwJ9fnjcJDufN6gGw/VAInC15TgaJwNpz6R42LwX8BSK6BEOswsHsY4 lwPrOFztAX0eSRIFgZ29890ag47/XJNjWnVKEDxal+oEdb5Fy0a/k1wzHTs= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA6E3L8RDWpz69TxNdMlLm QVZPsj5daTQKtgaDp9TBASPYxh/lquuN344zmNrLR76hjswpwNoCmvXOevqK6vdI X0actl20g7Yk1gkqynJCymw+GC9hQZLNqYk8rYfD1ATYx68OlKIUv8cSi44dONvD 4zoQUG5BrAtWZX4A4lRbT41FXKctUYZ8gOK8m08Ptl9ijWcaN4N0AHK2brN60jt+ k3bfJ0eVbAFnQi5zdFORIVm16XLGHqkFn+gZpx616R+QLaduVdFWAsByqXBoNUrY 87B9ZkDd6ePupou+Ddxi0dHHL5j/yHkB6j3gbOzQn/QTyjpF3YuPpxa+qdXTkdI0 DQIDAQAB -----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 345163600137738976891584820575276020523547 . . . . . . . . [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 2019-12-05 16:51:22 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-03-04 16:51:22 +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 'tocongdoan.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 29325649708628337420663874741605252611740772097808387638530402541907109665444357652321940228201033856111902904066660160150473596474536175945404611759352452737992588176320645434179118252258368305734256810219462624271610305690684111588076949758671384222431877259059992988398439727054353126194577225961512495790936724614833340540563812826988771360180143570158360829690967212898571961438867730881100560627151842242039426143181864815300033671213513248542357997274410411693919509851477660694424791503841727320676817056700005668194242038030936824643807964235101313947187109470587066473751270169736120364235836293430241276941 . . . . . . . . . . . . . . . . . . . . [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) 457f35d27905a67514e7aad7651145382caa7f82 . . . . . . . . . . . . . . . . [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 (28 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'tocongdoan.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 (245 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes) 00f0007600f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb2730000016ed7301441000004030047304502203b2fd7ee0d4fcfe193be199c3d7e964ee68bc137826ade1495f2ea191b00eabe022100ed1dd7e5ca339c4e810cc7d4d5564f0f2aa2c2f62c56a80c8674aacff4a1d34d00760007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000016ed73014980000040300473045022071bac3fe1214f1222370f37dba9f5bb56f8adb21865a1af3edadebd4793663e0022100cf3d3dbfb3c2c70b0f3cdb9bb6094204692fd04e1e52e1b55d6192a1295f0495 . . . . [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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