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Explore the fundamentals of information-theoretic cryptography in this 14-minute conference talk, the first in a five-part series presented at TCC 2024 and chaired by Pierre Meyer. Delve into cryptographic techniques that derive their security from information theory rather than computational assumptions, examining how these methods provide unconditional security guarantees. Learn about the theoretical foundations that underpin information-theoretic approaches to cryptography, including concepts such as perfect secrecy, secret sharing, and secure multi-party computation protocols that remain secure even against computationally unbounded adversaries. Discover how information-theoretic methods differ from traditional computational cryptography and understand their applications in scenarios requiring the highest levels of security assurance.
