Netværkssikkerhed
Netværkssikkerhed
Netværkssikkerhed
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TCP/IP suite<br />
Application layer<br />
Transport layer (TCP/UDP)<br />
Network layer (IP)<br />
Physical layer<br />
TCP/IP suite<br />
Application layer<br />
Transport layer (TCP/UDP)<br />
Network layer (IP)<br />
Physical layer<br />
Kryptografisk beskyttelse<br />
End to end kryptering<br />
beskyttet hele ruten<br />
sikrer bruger autenticitet<br />
max nøgler (DES): n*(n-1)/2<br />
data beskyttet mellem computere (ikke host)<br />
sikrer ikke bruger (men node) autenticitet<br />
skjult service, evt hardware<br />
Link kryptering<br />
TCP/IP suite<br />
Application layer<br />
Transport layer (TCP/UDP)<br />
Network layer (IP)<br />
Physical layer<br />
TCP/IP suite<br />
Application layer<br />
Transport layer (TCP/UDP)<br />
Network layer (IP)<br />
Physical layer<br />
09/10/2012 ITU 7.37
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