List-Decodable Byzantine Robust PIR: Lower Communication Complexity, Higher Byzantine Tolerance, Smaller List Size

Private Information Retrieval PIR is a privacy-preserving primitive in cryptography. Significant endeavors have been made to address the variant of PIR concerning the malicious servers. Among those endeavors, list-decodable Byzantine robust PIR schemes may tolerate a majority of malicious...

CVE-2020-15350

RIOT 2020.04 has a buffer overflow in the base64 decoder. The decoding function base64decode uses an output buffer estimation function to compute the required buffer capacity and validate against the provided buffer size. The base64estimatedecodesize function calculates the expected decoded size...

Whispers of Data: Unveiling Label Distributions in Federated Learning through Virtual Client Simulation

Federated Learning enables collaborative training of a global model across multiple geographically dispersed clients without the need for data sharing. However, it is susceptible to inference attacks, particularly label inference attacks. Existing studies on label distribution inference exhibits...

SILENT: a New Lens on Statistics in Software Timing Side Channels

Cryptographic research takes software timing side channels seriously. Approaches to mitigate them include constant-time coding and techniques to enforce such practices. However, recent attacks like Meltdown 42, Spectre 37, and Hertzbleed 70 have challenged our understanding of what it means for...

CVE-2020-15350

RIOT 2020.04 has a buffer overflow in the base64 decoder. The decoding function base64decode uses an output buffer estimation function to compute the required buffer capacity and validate against the provided buffer size. The base64estimatedecodesize function calculates the expected decoded size...