CCA-secure key encapsulation mechanism based on factoring assumption

Gyöngyvér Márton

Abstract


In this article a key encapsulation mechanism is presented which is based on squaring function, where the input element is from$QR^{+}_{N} $, where
$QR^{+}_{N} $ denotes the signed quadratic residue group, and N is a Blum integer. The
article presents the soundness, the effciency and the proof of CCA security of the
proposed mechanism.


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DOI: https://doi.org/10.2478/tatra.v53i0.197