SCALib: A Side-Channel Analysis Library

Side Channel Leakage Analysis

Nearly twenty years ago the discovery of side channel attacks has warned the world that security is more than just a mathematical problem. Serious considerations need to be placed on the implementation and its physical media. Nowadays the ever-growing ubiquitous computing calls for in-pace development of security solutions. Although the physical security has attracted increasing public attentio...

Side-Channel Analysis of Keymill

One prominent countermeasure against side-channel attacks, especially differential power analysis (DPA), is fresh re-keying. In such schemes, the so-called re-keying function takes the burden of protecting a cryptographic primitive against DPA. To ensure the security of the scheme against side-channel analysis, the re-keying function has to withstand both simple power analysis (SPA) and differe...

Basics of Side-Channel Analysis

Classical cryptography considers attack scenarios of adversaries getting black-box access to a cryptosystem, namely to its inputs and outputs. For example, in a chosenciphertext attack, an adversary can submit ciphertexts of her choice to a decryption oracle and receives in return the corresponding plaintexts. In real life, however, an adversary may be more powerful. For example, an adversary m...

Spatially Varied Flow Profiles in a V-Shaped Side-Channel

Improved Techniques for Side-Channel Analysis

Over the last several years, side-channel analysis has emerged as a major threat to securing sensitive information in hardware and systems. The list of side-channels that have been (re)discovered include timing [8] micro-architectural anomalies [1, 5, 12, 13], power consumption [9], electromagnetic emanations [2, 7, 14], optical [10, 11] and acoustic leakage [4]. These side-channels have been u...