Ring-LWE cryptography for the number theorist

Elias, Yara; Lauter, Kristin E.; Ozman, Ekin; Stange, Katherine E.

doi:10.1007/978-3-319-30976-7_9

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Ring-LWE cryptography for the number theorist

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Elias, Yara
Max Planck Institute for Mathematics, Max Planck Society;

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https://doi.org/10.1007/978-3-319-30976-7_9
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arXiv:1508.01375.pdf
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Elias, Y., Lauter, K. E., Ozman, E., & Stange, K. E. (2016). Ring-LWE cryptography for the number theorist. In Directions in Number Theory: Proceedings of the 2014 WIN3 Workshop (pp. 271-290). Cham: Springer.

Cite as: https://hdl.handle.net/21.11116/0000-0004-6785-2

Abstract

In this paper, we survey the status of attacks on the ring and polynomial learning with errors problems (RLWE and PLWE). Recent work on the security of these problems (Eisentraeger et al., Weak Instances of PLWE. In: Proceedings of the selected areas of cryptography 2014. Lecture notes in computer science. Springer,
New York, 2014; Elias Y., Lauter K., Ozman E., Stange K., Provably weak instances of ring-LWE. In: Advances in Cryptology – CRYPTO 2015. Springer, 2015 gives rise to interesting questions about number fields. We extend these attacks and survey related open problems in number theory, including spectral distortion of an algebraic number and its relationship to Mahler measure, the monogenic property for the ring of integers of a number field, and the size of elements of small order modulo q.