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Category — Homomorphic Encryption
FrodoPIR: New Privacy-Focused Database Querying System

FrodoPIR: New Privacy-Focused Database Querying System

Dec 23, 2022 Encryption / Privacy / Browser
The developers behind the Brave open-source web browser have revealed a new privacy-preserving data querying and retrieval system called  FrodoPIR . The idea, the company  said , is to use the technology to build out a wide range of use cases such as safe browsing, scanning passwords against breached databases, certificate revocation checks, and streaming, among others. The scheme is called  FrodoPIR  because "the client can perform hidden queries to the server, just as Frodo remained hidden from Sauron," a reference to the characters from J. R. R. Tolkien's  The Lord of the Rings . PIR, short for  private information retrieval , is a cryptographic protocol that enables users (aka clients) to retrieve a piece of information from a database server without revealing to its owner which element was selected. In other words, the goal is to be able to query a platform for information (say, cooking videos) without letting the service provider infer from a user's search
Researchers Demonstrate New Side-Channel Attack on Homomorphic Encryption

Researchers Demonstrate New Side-Channel Attack on Homomorphic Encryption

Mar 03, 2022
A group of academics from the North Carolina State University and Dokuz Eylul University have demonstrated what they say is the "first side-channel attack" on homomorphic encryption that could be exploited to leak data as the encryption process is underway. "Basically, by monitoring power consumption in a device that is encoding data for homomorphic encryption, we are able to read the data as it is being encrypted," Aydin Aysu, one of the authors of the study,  said . "This demonstrates that even next generation encryption technologies need protection against side-channel attacks." Homomorphic Encryption is a  form of encryption  that allows certain types of computation to be performed directly on encrypted data without having to decrypt it in the first place. It's also meant to be privacy-preserving in that it allows sharing of sensitive data with other third-party services, such as data analytics firms, for further processing while the underlyin
9 Steps to Get CTEM on Your 2025 Budgetary Radar

9 Steps to Get CTEM on Your 2025 Budgetary Radar

Nov 06, 2024Threat Management / Business Continuity
Budget season is upon us, and everyone in your organization is vying for their slice of the pie. Every year, every department has a pet project that they present as absolutely essential to profitability, business continuity, and quite possibly the future of humanity itself. And no doubt that some of these actually may be mission critical. But as cybersecurity professionals, we understand that the rollout of a viable CTEM ( Continuous Threat Exposure Management ) program actually is . In any year, cybersecurity investments are tough budgetary sells – they're hard to quantify and don't always clearly drive revenues or cut costs. In today's belt-tightening climate, all the more so. Even though cybersecurity budgets will likely grow this year according to Forrester, it's still important to make sure today that CTEM doesn't slip down the budget priority list.  In this article, we'll discuss how to keep CTEM on the budgetary radar. But First – Here are Some Reasons Why CTEM is Objectiv
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