cryptoProhard

Seknipel

ASIS CTF

Task: ASIS Crypto "Seknipel" — ASIS cipher. Solution: ASIS CTF specific cryptographic challenge, custom algorithm.

$ ls tags/ techniques/
continued_fractionscubic_pell_curvextr_cryptosystemwiener_attackpolynomial_resultantfinite_field_factorizationcubic_extensioncrt
Continued fractions attack (Wiener-style) on e/n^2Polynomial resultant computation for system solvingFactorization over finite fields GF(p)Chinese Remainder Theorem for solution combination
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