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a2 --- Informazioni riservate e certificate

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Capitolo 733.   Informazioni riservate e certificate

733.1   Crittografia

733.1.1)   Definire brevemente la crittografia simmetrica o «a chiave segreta». 

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733.1.2)   Definire brevemente la crittografia asimmetrica o «a chiave pubblica». 

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733.1.3)   Descrivere brevemente il principio di funzionamento della firma elettronica. 

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733.1.4)   Definire brevemente cos'e un certificato elettronico in generale. 

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733.1.5)   Cosa si deve fare quando si perde la propria chiave privata o quando si sospetta che questa sia stata trafugata? 

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733.2   Autorità di certificazione

733.2.1)   Cosa fa l'autorità di certificazione? 

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733.2.2)   Nel contesto specifico del problema dell'autorità di certificazione, cos'è un certificato? 

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733.2.3)   L'autorità di certificazione, per poter rilasciare un certificato, deve disporre della chiave privata di chi richiede la certificazione? Perché? 

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733.2.4)   L'autorità di certificazione, per poter rilasciare un certificato, deve disporre della propria chiave privata? Perché? 

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733.2.5)   Cos'è e cosa contiene una richiesta di certificato? 

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733.3   Connessioni cifrate e certificate

733.3.1)   Descrivere brevemente a cosa serve una connessione cifrata e certificata. 

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733.3.2)   A livello di TCP/IP, qual è la difficoltà nella realizzazione di tunnel cifrati? 

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Appunti di informatica libera 2006.01.01 --- Copyright © 2000-2006 Daniele Giacomini -- <daniele (ad) swlibero·org>, <daniele·giacomini (ad) poste·it>

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