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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
SaaS Compliance through the NIST Cybersecurity Framework

SaaS Compliance through the NIST Cybersecurity Framework

Feb 20, 2024Cybersecurity Framework / SaaS Security
The US National Institute of Standards and Technology (NIST) cybersecurity framework is one of the world's most important guidelines for securing networks. It can be applied to any number of applications, including SaaS.  One of the challenges facing those tasked with securing SaaS applications is the different settings found in each application. It makes it difficult to develop a configuration policy that will apply to an HR app that manages employees, a marketing app that manages content, and an R&D app that manages software versions, all while aligning with NIST compliance standards.  However, there are several settings that can be applied to nearly every app in the SaaS stack. In this article, we'll explore some universal configurations, explain why they are important, and guide you in setting them in a way that improves your SaaS apps' security posture.  Start with Admins Role-based access control (RBAC) is a key to NIST adherence and should be applied to every SaaS a
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