Comparative Analysis of Blockchain Systems

Blockchain is a type of decentralized distributed database. Unlike traditional relational database management systems, it does not require management or maintenance by a third party. All data management and update processes are open and transparent, solving the trust issues of centralized databas...

Blockchain Application in Metaverse: a Review

In recent years, the term Metaverse emerged as one of the most compelling concepts, captivating the interest of international companies such as Tencent, ByteDance, Microsoft, and Facebook. These company recognized the Metaverse as a pivotal element for future success and have since made significa...

_getNextObservationIndex() Random use of timestamp to determine the currentTime can be manipulated bacause of dangerous strict equalities

Lines of code Vulnerability details Impact The use of strict equalities can be easily manipulated by an attacker. Miners may attempt to manipulate the timestamp. Proof of Concept File: TwabLib.sol Code Link: Code: if newestObservation.timestamp == currentTime File: TwabLib.sol Code Link: Code: if...