beacons
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Recently we had a case where threat actors deployed CobaltStrike, which has become a common pattern over the years. CobaltStrike is a tool designed for red teaming exercises and provides a foothold into a target environment as well as extensive capabilities for staging further payloads. Unfortunately it is abused for malicious purposes just as often.…
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Publicly Verifiable Secret Sharing (PVSS) is a fundamental primitive that allows to share a secret $S$ among $n$ parties via a publicly verifiable transcript $T$. Existing (efficient) PVSS are only proven secure against static adversaries who must choose who to corrupt ahead of a protocol execution. As a result, any protocol (e.g., a distributed randomness…