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Loading page content...Multivariate-quadratic signature scheme (Ding & Schmidt, 2005). NIST PQC ROUND 3 FINALIST, broken by Beullens (2022) in hours on a laptop β layered central map leaked exploitable algebraic structure. 4th major PQC family in this repo (alongside lattice/code-based/isogeny). Status: BROKEN unconditionally.
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An asymmetric cipher based on the difficulty of factoring large semiprimes. Supports key generation, encryption, and decryption.
The finite-field discrete-log ancestor of ECDSA (NIST FIPS 186, 1994) β same r/s signature equation, computed in a prime-order subgroup instead of on a curve. Demo uses toy parameters; real DSA needs p>=2048 bits, q>=224 bits.
A key exchange protocol enabling two parties to establish a shared secret over an insecure channel.