If the one-time pad cipher (Figure 31.12 in the text) is the simplest and most secure cipher,
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If the one-time pad cipher (Figure 31.12 in the text) is the simplest and most secure cipher, why is it not used all of the time?
Figure 31.12
Transcribed Image Text:
Random sequence bit generator Secure key-exchange channel k;1 bit I bit k; I bit 1 bit Encryption Pi I bit Decryption I bit Insecure channel
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