Posts for tag ECDSA

• [SECCON CTF 2021] Sign Wars

  Robin Jadoul

  Dec 13, 2021

  seccon, organizers, crypto, ECDSA, lattice, mt19937

  A long time ago in a galaxy far, far away....

• [pbctf 2020] LeaK

  Robin Jadoul

  Dec 07, 2020

  pbctf, organizers, crypto, EHNP, ECDSA, nonce

  I know there's a famous attack on biased nonces. Then, how about this?