Reverse engineering a microcontroller firmware is sometimes a long and tedious task, but even a seasoned reverser might struggle to get their favorite tool to
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Your own blockchain with Hyperledger Fabric
Hyperledger Fabric (HLF) is a blockchain framework hosted by The Linux Foundation. This post is a technical walkthrough for those wanting to quickly get a
Audit of Tangem’s smartcard wallet code
Tangem provides “smart banknotes for digital assets”, as smart card storage media for Bitcoin private keys with basic wallet functionality. Tangem hired Kudelski Security to perform
Audit report of Monero’s bulletproofs integration
Monero is a decentralized, open-source cryptocurrency that provides strong privacy protections thanks to state-of-the-art cryptographic components. Monero is deploying a new version of its protocol,
Breaking RSA OAEP with Manger’s attack
The RSA cryptosystem has had its fair share of attacks over the years, but among the most impressive, you can find the infamous Bleichenbacher attack
Blockchain: where to start
People often contact me to ask about “the blockchain”—where the definite article ‘the‘ tells a lot about their experience with c̶r̶y̶p̶t̶o̶ blockchains. My answer will