Store now, decrypt later: o impacto dos computadores quânticos na comunicação digital

Abstract

Recent advancements in quantum technology have sparked serious concerns about the security of conventional encryption systems. The immense processing power of quantum computers presents a growing threat to algorithms that are currently deemed secure. These algorithms, which rely on computational complexity to ensure the safeguard sensitive data, can be easily compromised by quantum machines, jeopardizing the confidentiality and integrity of digital communications. In response, the "store now, decrypt later"strategy has emerged, where data is encrypted and stored now, with plans to decrypt it in the future using quantum computers. This highlights the urgent need to develop new cryptographic methods that can withstand quantum attacks, which are vital for ensuring the continued security of digital communications. This paper consists of identifying and presenting already standardized post-quantum encryption algorithms, investigating their theoretical foundations, potential resources and applications. In addition to raising awareness of the imminent risks posed by quantum computing, the study provides recommendations for web developers on how to integrate post-quantum cryptographic solutions, helping to guide the transition to more secure and resilient systems.