The security of cryptographic systems is an ever-evolving subject, and the methods used to attack them are continuously improving. Among the various types of side channel attacks, timing attacks and scan chain attacks stand out as particularly sophisticated threats. In this article, we explore how these attacks work using the RSA algorithm as an example, […]
The security of cryptographic systems goes far beyond mathematical algorithms. Often, what appears to be a simple computational operation inadvertently reveals valuable information through its power consumption. In this article, we explore power analysis attacks, examining both the simple (SPA) and differential (DPA) methods. Get ready to journey behind the scenes of cryptographic devices and
In an increasingly connected world, protecting sensitive data isn’t just best practice—it’s essential. Cryptographic algorithms like RSA and AES are mathematically secure, but their real‑world implementations can leak secret information through side channels. In this article, we’ll dive into how a processor’s memory hierarchy—especially cache memory—can betray secrets, and what you can do to defend
Side-channel attacks are among the most subtle—and effective—threats to modern cryptographic systems. Even though the underlying algorithms are mathematically robust, their implementations can present exploitable weaknesses. In this article, we explore how these attacks work, the main techniques employed by attackers, and practical ways to safeguard against these vulnerabilities. What Are Side-Channel Attacks? Side-channel attacks
Modular multiplication is a fundamental operation in many areas of computer science, especially in cryptography and numerical algorithms. One technique that stands out for its efficiency is Montgomery Reduction. In this article, we’ll explore in a relaxed and engaging way how this method works, why it’s so advantageous, and how to implement it to accelerate
Modular exponentiation (calculating ae mod n) is the beating heart of public‑key protocols like RSA and Diffie‑Hellman. While the concept is straightforward, a naive implementation can be painfully slow — and even leave you vulnerable to side‑channel attacks. In this post, you’ll discover: Why Modular Exponentiation Matters Modular exponentiation is the cornerstone of many cryptographic
Modern cryptography relies on advanced mathematical concepts to secure our digital communications. Among these, modular exponentiation plays a fundamental role, serving as the backbone for algorithms such as Diffie-Hellman and RSA. In this article, we’ll explore how these techniques are applied in practice, providing a clear and engaging overview of the topic. What Is Modular
