Can you suggest a security improvement to either option in Figure 6.11, using only three DES chips

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Can you suggest a security improvement to either option in Figure 6.11, using only three DES chips and some number of XOR functions? Assume you are still limited to two keys. image text in transcribed

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Cryptography And Network Security

ISBN: 9780136097044

5th Edition

Authors: William Stallings

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Question Posted: Jan 27, 2024 12:00 PM

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Can you suggest a security improvement to either option in Figure 6.11, using only three DES chips

Question:

K, K P EDE C-1 C (b) One-loop CBC K K K3 Pr n E D A E B C An-1 B-1 C-1 (b) Three-loop CBC Figure 6.11 Use of Triple DES in CBC Mode

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Instead of mathrmCBCmathrmCBCmathrmCBCmathrmX use ECB mathrm...View the full answer

Cryptography And Network Security

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