FCSC 2021 - SmeaLog

Posted on 03 May 2021, 18:00 in WriteUps • Tagged with ctf, write-ups, crypto, elliptic curve, discrete log, integer modulo prime-power

Write-up of a crypto challenge during FCSC 2021 - Discrete logarithm on an elliptic curve defined over integers modulo a prime-power


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Ledger Donjon CTF 2020 - SMPC Signature

Posted on 21 Nov 2020, 18:30 in WriteUps • Tagged with ctf, write-ups, crypto, elliptic curve, lattice, smpc, secret sharing

Write-up of a crypto challenge during Ledger 2020 CTF - Lattice based attack on ECDSA signatures using known-prefix nonce


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