viettelstudy.vn

Issued by GeoTrust SSL CA

About this certificate


This digital certificate with serial number 02:66:2b was issued on by GeoTrust, Inc. .

While the 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.

Cerificate errors/warnings *beta

  • ERROR: businessCategory is required for [EV] certificates
  • ERROR: jurisdictionCountryName is required for [EV] certificates

Cong ty Vien thong Viettel - Tap doan Vien thong Quan doi

Company registration number: MS9z8Lqn0Gsd-IRmY4YmkhNlwZPm-dVj
Organization: Cong ty Vien thong Viettel - Tap doan Vien thong Quan doi
Organization unit: IT Derpartment
State / Province: Hanoi
Locality: Hanoi
Country: VN

GeoTrust, Inc.

Organization: GeoTrust, Inc.
State / Province: Hanoi
Locality: Hanoi
Country: VN

Time since certificate expired

This certificate has expire since

Certificate Details

Serial Number (hex): 02:66:2b
Serial Number (int): 157227
Serial Number lenght: 18 bits, 3 octets

SubjectKeyId: b0:fc:7f:2b:b0:c3:ef:ce:a7:93:6c:99:7a:ab:2b:6e:48:62:40:71
AuthorityKeyId: 42:79:54:1b:61:cd:55:2b:3e:63:d5:3c:48:57:f5:9f:fb:45:ce:4a

Fingerprint (sha1): bb:9b:a2:5e:35:cd:f8:51:b0:04:28:9d:86:65:2d:d0:0a:4b:80:1b
Fingerprint (sha256): d7:39:2c:7a:bc:b2:5b:58:c9:b2:e1:54:e9:8a:34:c8:f1:8e:aa:d8:a3:5b:ce:d7:5d:3b:82:f9:46:01:34:a7

Issuing Certificate URL: http://gtssl-aia.geotrust.com/gtssl.crt

Revocation information

OCSP Server: http://gtssl-ocsp.geotrust.com
CRL Distribution Point: http://gtssl-crl.geotrust.com/crls/gtssl.crl

Check the revocation status for the current certificate on viettelstudy.vn
1
DNS Names
0
Email Addresses
0
IP Addresses

Advanced Certificate Properties

Technical details about this certificate


Public Key Algorithm

RSA

Key Size

2048

Signature Algorithm

SHA1 with RSA



Key Usage

Digital Signature
Key Encipherment
Data 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

This certificate doesn't contain any other subject alternative names besides the common name of the subject: viettelstudy.vn

Certificate

The complete raw certificate details in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE----- MIIFKjCCBBKgAwIBAgIDAmYrMA0GCSqGSIb3DQEBBQUAMEAxCzAJBgNVBAYTAlVT MRcwFQYDVQQKEw5HZW9UcnVzdCwgSW5jLjEYMBYGA1UEAxMPR2VvVHJ1c3QgU1NM IENBMB4XDTEzMDcyNDEwMzg0NFoXDTE0MDcxMDAwMzcxMFowgc8xKTAnBgNVBAUT IE1TOXo4THFuMEdzZC1JUm1ZNFlta2hObHdaUG0tZFZqMQswCQYDVQQGEwJWTjEO MAwGA1UECBMFSGFub2kxDjAMBgNVBAcTBUhhbm9pMUIwQAYDVQQKEzlDb25nIHR5 IFZpZW4gdGhvbmcgVmlldHRlbCAtIFRhcCBkb2FuIFZpZW4gdGhvbmcgUXVhbiBk b2kxFzAVBgNVBAsTDklUIERlcnBhcnRtZW50MRgwFgYDVQQDEw92aWV0dGVsc3R1 ZHkudm4wggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQDaqWvGHbBigcv+ mdCvvkBhbF3rH7e/BmUNjBo5ygTYiX7+MsuM8IqKVYRbRoGsYYORZVK3ecWaDfv1 LS6dNEkriesZRCOnm0FUJWbk4SjJAHBt7efcZytmClmd8B/I1RWcocNoz0recZDi H5WxC6jeXdJvi1ylVUj/jdApMn4J4jTHlXbxcgoahdFbCREXTgAUv+wbRMgiUdIA gu0iZj8YZEzwK5PCMy7Je5oug+f70Z24DYvtBVg8y/aXv9tP+m119jMMB6nGMc9j Baoq/gQPqcdfXXjdTHyUgCOpCWeyyLg/ieZ2XBDula3Z6Mwtpo57EHAQgBzXURRV cW3HFKo9AgMBAAGjggGbMIIBlzAfBgNVHSMEGDAWgBRCeVQbYc1VKz5j1TxIV/Wf +0XOSjAOBgNVHQ8BAf8EBAMCBLAwHQYDVR0lBBYwFAYIKwYBBQUHAwEGCCsGAQUF BwMCMBoGA1UdEQQTMBGCD3ZpZXR0ZWxzdHVkeS52bjA9BgNVHR8ENjA0MDKgMKAu hixodHRwOi8vZ3Rzc2wtY3JsLmdlb3RydXN0LmNvbS9jcmxzL2d0c3NsLmNybDAd BgNVHQ4EFgQUsPx/K7DD786nk2yZeqsrbkhiQHEwDAYDVR0TAQH/BAIwADBvBggr BgEFBQcBAQRjMGEwKgYIKwYBBQUHMAGGHmh0dHA6Ly9ndHNzbC1vY3NwLmdlb3Ry dXN0LmNvbTAzBggrBgEFBQcwAoYnaHR0cDovL2d0c3NsLWFpYS5nZW90cnVzdC5j b20vZ3Rzc2wuY3J0MEwGA1UdIARFMEMwQQYKYIZIAYb4RQEHNjAzMDEGCCsGAQUF BwIBFiVodHRwOi8vd3d3Lmdlb3RydXN0LmNvbS9yZXNvdXJjZXMvY3BzMA0GCSqG SIb3DQEBBQUAA4IBAQBinfF2QdE1uSh6cPPolfBcjmoqrGXUzZJJ/UoNU91JVcbC it+Fg8PkYKNzXRRbSnrxCz2YhRQJbfzGp6dqRu1IS/UHUtSyPN1LIHA4cXtu2yNJ NUGnClbp2auFHfRQ/8/12UYGL+pV4JbutB5Mfcx08qOYzoJIv7XjEAdRKumiI4jN doJvAHoosmESAkg8YluOJop1NCV5V7SWHXK6V/gui8rLEouP8GH/ccZyEB/3kr9T 8b83Ie+v8GomniecQzzsv0w6HhKrQdf+oJo22MmNyAe6DxQGbyDVK7WaIHXxZepH KsvhwdsSJwStygMq386RjQNcz6Epz4ovrcL5gn2s -----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA2qlrxh2wYoHL/pnQr75A YWxd6x+3vwZlDYwaOcoE2Il+/jLLjPCKilWEW0aBrGGDkWVSt3nFmg379S0unTRJ K4nrGUQjp5tBVCVm5OEoyQBwbe3n3GcrZgpZnfAfyNUVnKHDaM9K3nGQ4h+VsQuo 3l3Sb4tcpVVI/43QKTJ+CeI0x5V28XIKGoXRWwkRF04AFL/sG0TIIlHSAILtImY/ GGRM8CuTwjMuyXuaLoPn+9GduA2L7QVYPMv2l7/bT/ptdfYzDAepxjHPYwWqKv4E D6nHX1143Ux8lIAjqQlnssi4P4nmdlwQ7pWt2ejMLaaOexBwEIAc11EUVXFtxxSq PQIDAQAB -----END PUBLIC KEY-----

ASN1 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 157227 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.5 (sha1WithRSAEncryption) . . . . . . . . . . . . [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 'GeoTrust, Inc.' . . . . . . . . . . . . [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 'GeoTrust SSL CA' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2013-07-24 10:38:44 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2014-07-10 00:37:10 +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 2.5.4.5 (serialNumber) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'MS9z8Lqn0Gsd-IRmY4YmkhNlwZPm-dVj' . . . . . . . . . . . . [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 'VN' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.8 (stateOrProvinceName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Hanoi' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.7 (localityName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Hanoi' . . . . . . . . . . . . [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 'Cong ty Vien thong Viettel - Tap doan Vien thong Quan doi' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.11 (organizationalUnitName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'IT Derpartment' . . . . . . . . . . . . [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 'viettelstudy.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 27603495087387617116239984348909565894112599752457009472384115804283951404222477635950771945189630528799146292404894661950232196806075139070519788777619061367589937775010133735799707497405895347925063022633896699209013287691321126968443741525307013632589383919953235656133079992807221653331507180188272104656669693404189233542225937476020677158940492565728994008118085506241861711661930922544201626258751821003610219523048599888800478660846882556355819827740756437951747432442719337656525824611814708138269363884627007661680125552819467096329413110355745340226829522708497669636432376424052873926212606904617464539709 . . . . . . . . . . . . . . . . . . . . [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 2.5.29.35 (authorityKeyIdentifier) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (24 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|false] OtherName 4279541b61cd552b3e63d53c4857f59ffb45ce4a . . . . . . . . . . . . . . . . [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 (4 bits) 04b0 . . . . . . . . . . . . . . . . [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 2.5.29.17 (subjectAltName) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (19 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'viettelstudy.vn' . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.31 (cRLDistributionPoints) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (54 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|true] OtherName . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|true] OtherName . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://gtssl-crl.geotrust.com/crls/gtssl.crl' . . . . . . . . . . . . . . . . [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) b0fc7f2bb0c3efcea7936c997aab2b6e48624071 . . . . . . . . . . . . . . . . [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 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://gtssl-ocsp.geotrust.com' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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://gtssl-aia.geotrust.com/gtssl.crt' . . . . . . . . . . . . . . . . [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 2.16.840.1.113733.1.7.54 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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://www.geotrust.com/resources/cps' . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.5 (sha1WithRSAEncryption) . . . . . . . . [c:0|t:5|false] NULL . . . . [c:0|t:3|false] BIT STRING (2048 bits) 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