cryptography Archivi

The Kasiski Method: what it is, how it works, and why it’s important in cryptography

The Kasiski Method is a fundamental technique in classical cryptography used to break polyalphabetic ciphers, particularly the famous Vigenère cipher. Developed in the 19th century by the German cryptographer Friedrich...

The Vigenère Cipher: one of the most famous encryption systems in history

05 Aug

The Vigenère cipher is one of the most famous encryption systems in history. Used to protect sensitive messages and confidential communications, it represents an evolution of the simpler Caesar cipher....

CROSS: Code-Based Digital Signature

15 Apr

[latexpage] Introduction In 2022, NIST launched a second standardization process for post-quantum digital signature schemes, with the goal of diversifying the mathematical foundations of the cryptographic portfolio with respect to the schemes...

Post-Quantum Cryptography for Embedded Systems: Challenges and Accelerator Integration over RISC-V Architecture

28 Apr

Introduction Information security has taken an increasingly crucial and pervasive role, particularly for embedded systems, which are low-power, resource-constrained devices involved in critical applications such as automotive, IoT and industrial...

TelsyInTouch: secure mobile conversations

31 Mar

In the world of information and interconnection, where both workers and private citizens are exposed to a multitude of cyber risks ranging from malware, computer fraud, theft of intellectual property...

Multivariate signatures based on identification schemes

15 Feb

[latexpage] Introduction The goal of an identification protocol is to enable the verification of someone’s identity. More specifically, a Prover must demonstrate to an interlocutor, called the Verifier, that...

UOV and its Variants: Digital Signatures Based on Multivariate Systems

24 Nov

[latexpage] In the previous exploration of multivariate cryptography, we examined how systems of polynomial equations over finite fields can form the basis for cryptographic schemes resistant to quantum computing attacks....

Future-proof cryptography: the security of TelsyMusa

10 Jun

Ensuring proper security standards for our systems and servers has never been more essential. This need, coupled with the growth rate of cyber threats and, more importantly, the increasingly various...

Security for offline conversations: TelsyATMO

05 Feb

Protecting our data and communications from cyber risks is, now more than ever, extremely important to secure the content we exchange. In fact, many dangers can lurk around the corner,...

New post-quantum digital signature proposals: the second NIST competition

16 Oct

[latexpage] Introduction In response to the threat posed by quantum computers, in 2017 the National Institute of Standards and Technology (NIST) launched a standardization process for the selection of quantum-resistant public-key cryptography...