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Lecture Notes in Computer Science
The Learning with Errors (LWE) is one of the most promising primitive for post-quantum cryptography due to its strong security reduction from the worst-case of NP-hard problems and its lightweight operations. The Public Key Encryption (PKE) scheme based on LWE has a simple and fast decryption, but its encryption is rather slow due to large parameter sizes for Leftover Hash Lemma or expensive Gaussian samplings. In this paper, we propose a novel PKE without relying on either of them. Fordoi:10.1007/978-3-319-98113-0_9 fatcat:iois4ha23ndnncav35gtuiuxam