digital signature Archivi

New post-quantum digital signatures: NIST announces the third round candidates

Introduction On May 14, 2026, the National Institute of Standards and Technology (NIST) published the schemes selected for the third round of the additional process for standardizing post-quantum digital signatures. With the...

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...

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....

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...

Falcon: NTRU-based digital signature

31 Jul

[latexpage] Introduction The Post-Quantum Cryptography NIST standardization process has identified two digital signature schemes based on lattice theory CRYSTALS-Dilithium and Falcon. In modern cryptographic protocols, these solutions are set to replace the currently used digital signature schemes...

Digital signature algorithms: present and future

21 Oct

[latexpage] Introduction and general structure In many ways, digital signatures are the digital equivalent of the handwritten signatures we all use every day. However, the main difference between the two...