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Results tagged with cryptography
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user 157
Questions about the construction and analysis of protocols and algorithms for secure computation and communication (including authentication, integrity, and privacy aspects).
1
vote
1
answer
125
views
Are tamper attacks considered side-channel?
Wikipedia defines side-channel attacks as:
any attack based on information gained from the physical implementation of a cryptosystem
Usually in side channel attacks the implementations leak info …
- 20.8k
26
votes
6
answers
20k
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Why is encrypting with the same one-time-pad not good?
To encrypt a message $m_1$ with a one-time-pad key $k$ you do
$Enc(m_1,k) = m_1 \oplus k$.
If you use the same $k$ to encrypt a different message $m_2$ you get
$Enc(m_2,k) = m_2 \oplus k$, and if yo …
- 20.8k