Lek‐Heng Lim
Abstract
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We show that the Cao-Li cryptosystem proposed in \cite{CL1} is not secure. Its private key can be reconstructed from its public key using elementary means such as LU-decomposition and Euclidean algorithm.
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We show that the Cao-Li cryptosystem proposed in \cite{CL1} is not secure. Its private key can be reconstructed from its public key using elementary means such as LU-decomposition and Euclidean algorithm.
Key concepts: Cryptosystem, Public key cryptosystem, Key (lock), Public-key cryptography, Euclidean algorithm, Goldwasser–Micali cryptosystem, Computer science, Hybrid cryptosystem