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1
Cryptography               2
3
CRYPTO GRAPHYKRYPTOS   GRAPHEIN                     4
(Confidentiality)                    (Integrity)                                  5
•      •      •      •RSA   •          6
••••••    7
8
9
•      •      •      •DES   •      •          10
-    -        --           -   11
•      •RSA   •      •      •          12
-    -    -        --           13
•••••    14
•••••    15
-A                    -                           B                                         •                             ...
A                AA                                                  B                     Digest            Digest       ...
••    18
19
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رمزنگاری

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رمزنگاری

  1. 1. 1
  2. 2. Cryptography 2
  3. 3. 3
  4. 4. CRYPTO GRAPHYKRYPTOS GRAPHEIN 4
  5. 5. (Confidentiality) (Integrity) 5
  6. 6. • • • •RSA • 6
  7. 7. •••••• 7
  8. 8. 8
  9. 9. 9
  10. 10. • • • •DES • • 10
  11. 11. - - -- - 11
  12. 12. • •RSA • • • 12
  13. 13. - - - -- 13
  14. 14. ••••• 14
  15. 15. ••••• 15
  16. 16. -A - B • P • - Digest B • T • A - P • A - - 16
  17. 17. A AA B Digest Digest P P B • + + T • Digest P • 17
  18. 18. •• 18
  19. 19. 19

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