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Cybersecurity

Table 7 Kyber’s secret distribution

From: Hybrid dual attack on LWE with arbitrary secrets

Name

n

k

Probability of

0

\(\pm 1\)

\(\pm 2\)

\(\pm 3\)

Kyber512

256

2

\(\frac{5}{16}\)

\(\frac{15}{64}\)

\(\frac{3}{32}\)

\(\frac{1}{64}\)

Kyber768

256

3

\(\frac{3}{8}\)

\(\frac{1}{4}\)

\(\frac{1}{16}\)

–

Kyber1024

256

4

\(\frac{3}{8}\)

\(\frac{1}{4}\)

\(\frac{1}{16}\)

–

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