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mark
2023-12-05 17:32:03 -08:00
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commit fbc7d87577
3 changed files with 5 additions and 5 deletions
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Advanced/Cryptography/parts/4 DiffieHellman.tex
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@ -93,7 +93,7 @@ What is their shared secret?
\problem{}
Let $p = 11$, $g = 2$, $a = 9$, and $b = 4$. \par
Run the algorithm. What is the resultingw shared secret?
Run the algorithm. What is the resulting shared secret?
\begin{solution}
$g^b = 5$\par

6
Advanced/Cryptography/parts/5 Elgamal.tex
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@ -117,9 +117,9 @@ Also, say Eve knows the value of $m_1 - m_2$. How can Eve find $m_1$ and $m_2$?\
\note[Note]{If Bob doesn't change his key, Eve will also be able to decrypt future messages.}
\begin{solution}
$c_2 - d_2 = (m_1 - m_2)A^k$. \par
So, $(c_2 - d_2)(m_1 - m_2)^{-1} = A^k$.\par
Now that we have $A^k$, we can compute $m_1 = c_2 \times A^{-k}$.
$c_2 - d_2 = (m_1 - m_2)A^k$ \par
So, $(c_2 - d_2)(m_1 - m_2)^{-1} = A^k$\par
Now that we have $A^k$, we can compute $m_1 = c_2 \times A^{-k}$
\end{solution}
\vfill