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) : E4:B4:F4:9E:23:36:DE:2C:A3:81:9C:CF:5D:48:B6:A0: 2E:3F:FE:13:B3:0E:0B:F0:96:0F:7E:E2:47:68:E9:5E: 6C:0B:14:64:B1:AB:48:59:A3:29:6A:DE:AF:F4:CF:96: A2:8F:4D:46:96:6D:E0:2F:11:1A:BE:C7:30:5C:EF:E0: 79:86:23:60:ED:28:DA:8C:39:22:15:52:F6:9A:17:B3: 54:72:F7:C8:0B:E0:5D:35:78:07:25:A7:BA:C2:10:16: 24:D4:41:77:BF:F5:CF:D2:97:23:4B:F4:05:BF:B2:CB: A6:9E:A2:68:A9:D9:35:88:4D:24:AC:01:D5:6F:DE:1D: F5:11:5C:91:65:AB:96:CF:68:88:61:1E:38:71:27:A0: 75:03:7E:05:A7:97:5E:9C:DB:9F:11:09:76:16:44:68: BD:70:C7:CE:81:DA:42:C5:22:D4:EE:DF:44:37:09:7D: B4:32:E7:26:45:AB:33:67:99:C9:0F:D6:08:48:02:F1: 4B:00:BE:A2:4E:3C:DD:20:EC:A2:AB:6E:12:68:36:B1: 7C:65:DB:15:15:79:5F:96:97:1D:C4:9A:FD:88:17:63: 03:AD:47:E9:BC:BD:3F:C1:36:45:88:A6:31:93:40:BD: AD:77:C7:DA:09:D4:49:53:0C:9F:1C:E8:E4:A4:A7:A9 Authority 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: 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: 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) : E4:B4:F4:9E:23:36:DE:2C:A3:81:9C:CF:5D:48:B6:A0: 2E:3F:FE:13:B3:0E:0B:F0:96:0F:7E:E2:47:68:E9:5E: 6C:0B:14:64:B1:AB:48:59:A3:29:6A:DE:AF:F4:CF:96: A2:8F:4D:46:96:6D:E0:2F:11:1A:BE:C7:30:5C:EF:E0: 79:86:23:60:ED:28:DA:8C:39:22:15:52:F6:9A:17:B3: 54:72:F7:C8:0B:E0:5D:35:78:07:25:A7:BA:C2:10:16: 24:D4:41:77:BF:F5:CF:D2:97:23:4B:F4:05:BF:B2:CB: A6:9E:A2:68:A9:D9:35:88:4D:24:AC:01:D5:6F:DE:1D: F5:11:5C:91:65:AB:96:CF:68:88:61:1E:38:71:27:A0: 75:03:7E:05:A7:97:5E:9C:DB:9F:11:09:76:16:44:68: BD:70:C7:CE:81:DA:42:C5:22:D4:EE:DF:44:37:09:7D: B4:32:E7:26:45:AB:33:67:99:C9:0F:D6:08:48:02:F1: 4B:00:BE:A2:4E:3C:DD:20:EC:A2:AB:6E:12:68:36:B1: 7C:65:DB:15:15:79:5F:96:97:1D:C4:9A:FD:88:17:63: 03:AD:47:E9:BC:BD:3F:C1:36:45:88:A6:31:93:40:BD: AD:77:C7:DA:09:D4:49:53:0C:9F:1C:E8:E4:A4:A7:A9 Authority 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: 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: 84151049485830373801614190077619117405 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: 2023-12-25 00:00 UTC Not After : 2024-12-24 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: FE:C6:76:7E:F8:2B:AB:2B:4E:94:E3:21:DF:A8:71:07:6E:0F:BC:86 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: 02:34:F2:BC:C9:33:77:26:94:E4:88:E0:FA:18:63:52: 52:A9:66:34:9D:04:1B:AA:53:44:7C:83:E3:3B:FF:C6: B2:F8:4D:EA:AE:B3:7A:19:28:B4:28:E1:62:AE:41:02: FA:2C:65:A1:15:B1:94:D6:9D:23:1B:BE:CA:06:BE:D0: 37:23:50:D4:C7:5C:14:DA:1D:3E:1C:8F:BD:9D:AE:ED: 1F:D7:0E:B0:FB:FB:4B:C9:A4:FC:77:36:60:8B:3F:98: 20:6C:AF:AB:FA:A8:A5:3E:E3:AA:B8:32:9F:65:5A:DE: 4E:FD:04:CE:7E:8D:94:1D:BD:1C:B0:84:29:C9:A1:B3: BA:1F:5F:36:9C:A6:39:AE:39:4A:00:67:2E:92:11:BC: 8D:B2:34:89:2D:87:A9:11:27:26:EE:C3:A6:A1:1A:4B: F8:07:61:7E:D2:8E:91:26:E8:4E:36:01:33:93:A7:AD: AF:F7:B5:DB:56:5D:9A:40:A0:1E:13:AD:21:07:32:6F: ED:3A:95:0A:EF:6B:3E:3C:02:74:D0:EB:41:71:00:2C: D9:FA:1C:20:5D:2C:75:93:41:23:84:51:E2:57:B9:2E: E0:0E:C6:68:75:41:BB:94:D6:8F:6F:DB:BF:2C:67:92: 83:16:1C:21:C3:0D:D0:37:00:48:FC:3F:B8:A8:2F:6A