Koyphshi
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Koyphshi
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Ethernaut

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Collection of Ethernaut challenge writeups
  • Ethernaut
  • Solidity
  • Evm

Only-invited party

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Exploiting unchecked ecrecover return values and dirty memory in inline assembly to bypass signature verification and steal golden tickets.
  • Blockchain
  • Solidity
  • Assembly
  • Ecrecover
  • Evm

Geni

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Exploiting a CSI-FiSh variant by tracking torsion points through a sequence of leaked generator images.
  • Isogeny
  • Crypto
  • Csidh
  • Weil-Pairing

Vrai Sahl

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Breaking a hybrid RSA-ECC cryptosystem through weak prime generation.

  • Ecc
  • Rsa
  • Coppersmith
  • Weak-Primes
  • Hybrid-Crypto

XORSA

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Exploiting RSA with leaked XOR bits
  • Rsa
  • Xor-Leak
  • Coppersmith
  • Prime-Factorization
  • Lattice-Reduction

TDS

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  • Blackhat-Finals
  • Crypto
  • Aes-Gcm
  • Polynomial
  • Oracle
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