1.

2. 16-1 16-6 16-2 16-7 16-3 16-8 16-4 DoSDDoS16-9 16-5 16-10 3. 16-1 4. 16-1 5. 16-1 1E-mail 2(Web) 3 4 6. 16-1 7. 16-1 FBI 170 CERT2000 8. 16-1 9. 16-1 10. 16-2 hacker 1960 MIT hacker 11. 16-2 cracker 12. 16-2 13. 16-2 1. 2. 3. 14. 16-2 1. 2. 3. 4... 15. 16-2 16. 16-3 Malicious Code 17. 16-3 PC ()2004WORM_SASSER.C ()18002003Worm_MSBLAST ()140302003SQL Slammer209512 18. 16-3 CIH 19. 16-3 -Lsass 20. 16-3 (Trojans) (Trojans) 21. 16-3 22. 16-4 DoSDDoS DoSDDoS (DoSDenial of Service) (DDoS Distributed Denial of Service) 20002 YahooCNN 23. 16-4 DoSDDoS DoS DoS() Web ( ) 24. 16-4 DoSDDoS DoS 25. 16-4 DoSDDoS DDoS DDoS() 26. 16-4 DoSDDoS DDoS 27. 16-5 1234 28. 16-6 1 2 3 4 29. 16-6 Happy Hacker 30. 16-6 1 (Firewall) Internet (Gateway) Windows 7 31. 16-6 2 Windows 7 32. 16-6 3 PC-cillinNortonMcafee AntiVir 33. 16-6 4 ( )Norton Ghost GHOST 34. 16-7 35. 16-7 36. 16-7 1.() 2. 37. 16-7 ISO 17799 38. 16-7 39. 16-7 1. 2. 3. 40. 16-7 :12347777 41. 16-7 () 42. 16-7 43. 16-7 FTP 44. 16-8 45. 16-8 (Plaintext or Cleartext) (Ciphertext) (Algorithm) (Key) (Encrypt)(Plaintext) (Ciphertext) (Decrypt) 46. 16-8 . . 47. 16-8 Symmetric (Secret Key Cryptographic System Secret Key DESTriple DESIDEARC4.. 48. 16-8 Symmetric 49. 16-8 Asymmetric Public Key Cryptographic System (Private Key) (Public Key) Key Pair RSADSA.. 50. 16-8 1 2 12 51. 16-8 52. 16-9 (Digital Signature) (Digital Signature) Windows 7 53. 16-9 (Digital Sign) (Encrypting) ( Private Key) (Public Key) 54. 16-9 55. 16-9 200110 91.04.01OFFICE 56. 16-10 57. 16-10 http://moica.nat.gov.tw/ 58. Q&A