The XOR Arbiter PUF was introduced as a strong PUF in 2007 and was broken in 2015 by a Machine Learning (ML) attack, which allows the underlying Arbiter PUFs to be modeled individually by exploiting ...

[IMSAI Guy] grabbed an obsolete XOR gate and tried a classic circuit to turn it into a frequency doubler. Of course, being an old part, it won’t work at very high frequencies, but the circuit… ...

Conflux says its security team has successfully patched the CREATE2 Opcode vulnerability with version 2.5 network upgrade. CREATE2 opcode, introduced in 2019 via Ethereum’s Constantinople upgrade, is ...

This upgrade introduces full support for all Cancun opcodes, prepares for the Pectra upgrade, and delivers a high-performance prover capable of proving all blocks more efficiently.

How covenants can be built on Bitcoin today with no softforks (for an outrageously expensive set up price) using hash collisions. By Andrew Poelstra from Blockstream.