Version: v3 Serial Number: 3128097628390769365996301167451441102 Signature Algorithm: SHA256-RSA Issuer: Country: US Organization: DigiCert Inc CommonName: DigiCert Global G2 TLS RSA SHA256 2020 CA1 Validity: Not Before: 2024-07-19 00:00 UTC Not After : 2025-08-11 23:59 UTC Subject: Country: VN Province: Hà Nội Locality: Đống Đa Organization: VIETNAM POSTS AND TELECOMMUNICATIONS GROUP CommonName: *.vnpt.vn Subject Public Key Info: Public Key Algorithm: RSA Public Key: Exponent: 65537 Public Key Modulus: (2048 bits) : C1:DA:F5:85:DC:39:A9:3D:8B:0B:55:AD:50:70:64:AF: 00:83:B9:E0:C7:0B:96:7F:E0:09:E8:E8:EF:9F:13:A9: 1F:B8:CF:68:82:B8:32:51:B1:EF:DE:81:EB:12:F1:83: 2F:47:1D:D9:1C:B2:C8:D7:46:38:61:67:BA:2A:16:93: BB:14:D7:E7:7A:7F:36:03:F5:98:F6:DD:E7:16:65:5D: 0B:12:3B:7E:E8:0C:CE:28:4C:84:90:31:37:24:0C:D6: EC:7A:3D:9E:24:80:7E:8C:C0:A7:E6:72:98:30:17:63: E1:81:68:5F:2A:D8:29:DD:72:67:97:DE:6D:97:14:8C: 4F:A0:87:42:1A:02:61:99:A3:05:CC:E3:CD:A9:1A:FC: C6:86:38:EF:62:49:62:EF:36:6C:74:47:96:B8:E9:4E: 38:6B:16:1E:BF:8A:F4:82:12:C8:81:85:1F:DB:FC:BD: C9:2A:FC:A3:7A:5F:5D:FB:1D:DE:00:98:85:51:8F:A7: 0C:CA:E6:CE:19:79:3C:56:AB:6F:47:9F:A6:07:6D:F8: D6:93:5C:52:C5:6F:A5:FF:14:53:08:78:22:C2:15:60: 18:A8:6A:6E:93:B4:4C:79:FD:FD:E6:D8:47:82:AE:6B: 72:36:BE:95:2D:3F:12:94:86:50:08:DA:02:8A:6E:7D Authority Key Identifier: 74:85:80:C0:66:C7:DF:37:DE:CF:BD:29:37:AA:03:1D:BE:ED:CD:17 Subject Key Identifier: 35:D2:B5:ED:53:2B:7F:2E:00:2C:CB:76:EC:DE:09:4B:B4:86:95:3E CRL Distribution Points: http://crl3.digicert.com/DigiCertGlobalG2TLSRSASHA2562020CA1-1.crl http://crl4.digicert.com/DigiCertGlobalG2TLSRSASHA2562020CA1-1.crl Basic Constraints: CA : false Path Length Constraint: UNLIMITED OCSP Server: http://ocsp.digicert.com Issuing Certificate URL: http://cacerts.digicert.com/DigiCertGlobalG2TLSRSASHA2562020CA1-1.crt Key Usage: Digital Signature Key Encipherment Extended Key Usage: Server Auth Client Auth DNS Names: *.vnpt.vn vnpt.vn Certificate Signature Algorithm: SHA256-RSA Certificate Signature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

Version: v3 Serial Number: 152418412462787999028885318479298708236 Signature Algorithm: SHA256-RSA Issuer: Country: GB Province: Greater Manchester Locality: Salford Organization: Sectigo Limited CommonName: Sectigo RSA Domain Validation Secure Server CA Validity: Not Before: 2024-12-24 00:00 UTC Not After : 2025-12-24 23:59 UTC Subject: CommonName: *.vtctelecom.com.vn Subject Public Key Info: Public Key Algorithm: RSA Public Key: Exponent: 65537 Public Key Modulus: (2048 bits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uthority Key Identifier: 8D:8C:5E:C4:54:AD:8A:E1:77:E9:9B:F9:9B:05:E1:B8:01:8D:61:E1 Subject Key Identifier: 49:D6:CD:69:49:74:F0:C0:D2:2C:D2:05:8F:A8:C1:76:C8:F5:30:DC Basic Constraints: CA : false Path Length Constraint: UNLIMITED OCSP Server: http://ocsp.sectigo.com Issuing Certificate URL: http://crt.sectigo.com/SectigoRSADomainValidationSecureServerCA.crt Key Usage: Digital Signature Key Encipherment Extended Key Usage: Server Auth Client Auth DNS Names: *.vtctelecom.com.vn vtctelecom.com.vn Certificate Signature Algorithm: SHA256-RSA Certificate Signature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

Version: v3 Serial Number: 356876934898182785348927680623962789160738 Signature Algorithm: SHA256-RSA Issuer: Country: US Organization: Let's Encrypt CommonName: R10 Validity: Not Before: 2024-12-24 17:25 UTC Not After : 2025-03-24 17:25 UTC Subject: CommonName: cem.vinaphone.vn Subject Public Key Info: Public Key Algorithm: RSA Public Key: Exponent: 65537 Public Key Modulus: (2048 bits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uthority Key Identifier: BB:BC:C3:47:A5:E4:BC:A9:C6:C3:A4:72:0C:10:8D:A2:35:E1:C8:E8 Subject Key Identifier: 73:A4:3B:96:C0:A6:C3:88:53:38:4B:B1:01:F0:4B:22:DE:7A:86:AA Basic Constraints: CA : false Path Length Constraint: UNLIMITED OCSP Server: http://r10.o.lencr.org Issuing Certificate URL: http://r10.i.lencr.org/ Key Usage: Digital Signature Key Encipherment Extended Key Usage: Server Auth Client Auth DNS Names: cem.vinaphone.vn Certificate Signature Algorithm: SHA256-RSA Certificate Signature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

Version: v3 Serial Number: 354874897752551635743341046639082878190041 Signature Algorithm: SHA256-RSA Issuer: Country: US Organization: Let's Encrypt CommonName: R11 Validity: Not Before: 2024-12-24 17:26 UTC Not After : 2025-03-24 17:26 UTC Subject: CommonName: khaosat.vinaphone.vn Subject Public Key Info: Public Key Algorithm: RSA Public Key: Exponent: 65537 Public Key Modulus: (2048 bits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uthority Key Identifier: C5:CF:46:A4:EA:F4:C3:C0:7A:6C:95:C4:2D:B0:5E:92:2F:26:E3:B9 Subject Key Identifier: A1:AD:11:E3:E2:CA:87:B1:EC:1B:71:21:7E:F4:68:68:A8:63:69:AA Basic Constraints: CA : false Path Length Constraint: UNLIMITED OCSP Server: http://r11.o.lencr.org Issuing Certificate URL: http://r11.i.lencr.org/ Key Usage: Digital Signature Key Encipherment Extended Key Usage: Server Auth Client Auth DNS Names: khaosat.vinaphone.vn Certificate Signature Algorithm: SHA256-RSA Certificate Signature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

Version: v3 Serial Number: 15943337280328262928722815514926666141 Signature Algorithm: SHA256-RSA Issuer: Country: US Organization: DigiCert Inc CommonName: DigiCert Global G2 TLS RSA SHA256 2020 CA1 Validity: Not Before: 2024-07-19 00:00 UTC Not After : 2025-08-15 23:59 UTC Subject: Country: VN Province: Hà Nội Locality: Đống Đa Organization: VIETNAM POSTS AND TELECOMMUNICATIONS GROUP CommonName: *.vnpt.com.vn Subject Public Key Info: Public Key Algorithm: RSA Public Key: Exponent: 65537 Public Key Modulus: (2048 bits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uthority Key Identifier: 74:85:80:C0:66:C7:DF:37:DE:CF:BD:29:37:AA:03:1D:BE:ED:CD:17 Subject Key Identifier: B8:69:04:E4:B1:25:AA:C3:50:F0:E4:2B:66:ED:B8:70:28:D2:60:94 CRL Distribution Points: http://crl3.digicert.com/DigiCertGlobalG2TLSRSASHA2562020CA1-1.crl http://crl4.digicert.com/DigiCertGlobalG2TLSRSASHA2562020CA1-1.crl Basic Constraints: CA : false Path Length Constraint: UNLIMITED OCSP Server: http://ocsp.digicert.com Issuing Certificate URL: http://cacerts.digicert.com/DigiCertGlobalG2TLSRSASHA2562020CA1-1.crt Key Usage: Digital Signature Key Encipherment Extended Key Usage: Server Auth Client Auth DNS Names: *.vnpt.com.vn vnpt.com.vn Certificate Signature Algorithm: SHA256-RSA Certificate Signature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