Information Theoretic Security

Cryptography

Information Theoretic Security, fundamentally, concerns itself with the absolute limits of secure communication, irrespective of computational power. This framework establishes security based on the laws of information theory, specifically Shannon’s work, rather than relying on the presumed difficulty of mathematical problems. In cryptocurrency and derivatives, it dictates the theoretical minimum key lengths and encryption schemes needed to resist eavesdropping, even against adversaries with unlimited computing resources, influencing the design of secure protocols. The implications extend to secure multi-party computation used in decentralized exchanges and privacy-preserving smart contracts.