A Simple and Efficient CCA-Secure Lattice KEM in the Standard Model

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Author(s)
Li, Qinyi
Griffith University Author(s)
Year published
2020
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We present, to date, the most efficient public-key encapsulation mechanism from integer lattices in the standard model. Our construction achieves adaptive CCA security through a “direct” chosen-ciphertext security technique without relying on any generic transformation. The security of our construction is based on the standard learning-with-errors assumption. The efficiency of our construction is almost the same as the best known non-adaptive CCA-secure construction.We present, to date, the most efficient public-key encapsulation mechanism from integer lattices in the standard model. Our construction achieves adaptive CCA security through a “direct” chosen-ciphertext security technique without relying on any generic transformation. The security of our construction is based on the standard learning-with-errors assumption. The efficiency of our construction is almost the same as the best known non-adaptive CCA-secure construction.
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Conference Title
Lecture Notes in Computer Science
Volume
12238
Copyright Statement
© Springer Nature Switzerland AG 2020. This is the author-manuscript version of this paper. Reproduced in accordance with the copyright policy of the publisher.The original publication is available at www.springerlink.com
Subject
Data management and data science