2. ISO 27001/ BS7799 2 by 3. 1970) (cryptography) (cryptology)
(cryptanalysis) 3 by 4. 1980) ()() (information applianceIA)
(information safeguarding) (security policy & management)4 by
5. 5 by 6. (plaintext) (chiphertext) : Symmetric Key Asymmetric
Key6 by 7. Secret Key (B)B 7 by 8. Public Key RSA RSA 8 by 9. 9 by
10. 10 by 11. -2 A AB BAA 11 by 12. X.509: 12 by 13. 13 by 14. 14
by 15. : (In-line) (On-line) (Off-line15 by 16. 16 by 17. 17 by 18.
18 by 19. (Boot Strap Sector Virus) (File Infector Virus)
(Multi-Partite Virus) (Macro Virus) (Polymorphic/Mutation Virus)
(Warm)19 by 20. JavaScriptVBScript ActiveX JAVA 20 by 21.
(firewall) 21 by 22. 22 by 23. 23 by 24. 24 by 25. 25 by 26. Proxy
Server 26 by 27. 27 by 28. 28 by 29. Single Bastion Host 29 by 30.
30 by 31. (Intrusion Detection System IDS) 31 by 32. IDS 32 by 33.
: (signature-based detection) (anomaly detection) (mixed and hybrid
mode detection )33 by 34. 34 by 35. IDS IDS 35 by 36. 36 by 37. :
37 by 38. 38 by 39. 39 by 40. 40 by 41. (smart card) 41 by 42. ()
()42 by 43. 43 by 44. 44 by 45. 45 by 46. FHFIJRNFXNSNHFACADEMIA
SINICAAFCH46 by
