Computer Sciences

BlockPGP: A new blockchain-based PGP management framework

Pretty Good Privacy (PGP), one of the most widely used cryptographic standards, enables safe end-to-end encryption for emails, messages and other data sharing between users. Essentially, PGP works by implementing asymmetric ...

Computer Sciences

Two new attacks break PDF certification

A security issue in the certification signatures of PDF documents has been discovered by researchers at Ruhr-Universität Bochum. This special form of signed PDF files can be used, for instance, to conclude contracts. Unlike ...

Security

Privacy issues and security risks in Alexa Skills

With the voice commands 'Alexa Skills,' users can load numerous extra functions onto their Amazon voice assistant. However, these Skills can often have security gaps and data protection problems, as a team of researchers ...

Hardware

Groundbreaking method detects defective computer chips

Guaranteeing that computer chips, that can consist of billions of interconnected transistors, are manufactured without defects is a challenge. But how to determine if a chip is compromised?

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