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| author | marcellus <msimon_fr@hotmail.com> | 2025-05-22 11:22:17 +0200 |
|---|---|---|
| committer | marcellus <msimon_fr@hotmail.com> | 2025-05-22 11:22:17 +0200 |
| commit | ce4b7fecf04a18a0aab30364af3fc01710f2336b (patch) | |
| tree | 4c286494f5fabe53d6dc81d695a04a61553cc015 /CHIFR | |
| parent | 51bf1b7c8e3525ab6bdf759e8d3aaa9ee5ec5a11 (diff) | |
update: Thursday 4 May, 11:22:17 from IUseArchBTW
Diffstat (limited to 'CHIFR')
| -rw-r--r-- | CHIFR/TD/TD5 - Kyber.md | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/CHIFR/TD/TD5 - Kyber.md b/CHIFR/TD/TD5 - Kyber.md new file mode 100644 index 0000000..26859b5 --- /dev/null +++ b/CHIFR/TD/TD5 - Kyber.md @@ -0,0 +1,22 @@ +# Le cryptosystème Kyber +## STA Flashback +$$ +\begin{align} +&a = 4X^2 + 7X + 1 \\ +&b = 3X^2 + 2 +\end{align} +$$ +### a) +- $a+b = 7X^2 + 7X + 3$ +- $a \cdot b = 12X^4 + 8X^2 + 21X^3 + 14X + 3X^2 + 2 = 12X^4 + 21X^3 + 11X^2 + 14X + 2$ +### b) +$X^3 = -1, \, X^4 = -X$ +- $a+b = 7X^2 + 7X + 3$ +- $a\cdot b = -12X -21 + 11X^2 + 14X + 2 = 11X^2 + 2X -19$ +### c) +$X^3 = -1, \, X^4 = -X$ +- $a+b = 7X^2 + 7X + 3$ +- $a\cdot b = 2X^2 + 2X + 8$ + +## Kyber +### a) |