Consider a variation of the MAC algorithm (Figure 8.9) where the sender sends (m, H(m) + s),

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Consider a variation of the MAC algorithm (Figure 8.9) where the sender sends (m, H(m) + s), where H(m) + s is the concatenation of H(m) and s. Is this variation flawed? Why or why not?

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Computer Networking A Top-Down Approach

ISBN: 978-0136079675

5th edition

Authors: James F. Kurose, Keith W. Ross

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Question Posted: Apr 29, 2016 01:51 PM

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Consider a variation of the MAC algorithm (Figure 8.9) where the sender sends (m, H(m) + s),

Question:

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This is scheme is clearly flawed Trudy an attacker ...View the full answer

Computer Networking A Top-Down Approach

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