HERMES: Efficient Ring Packing using MLWE Ciphertexts and Application to Transciphering

ePrint Report: HERMES: Efficient Ring Packing using MLWE Ciphertexts and Application to Transciphering

Youngjin Bae, Jung Hee Cheon, Jaehyung Kim, Jai Hyun Park, Damien Stehlé

Most of the current fully homomorphic encryption (FHE) schemes are based on either the learning-with-errors (LWE) problem or on its ring variant (RLWE) for storing plaintexts. During the homomorphic computation of FHE schemes, RLWE formats provide high throughput when considering several messages, and LWE formats provide a low latency when there are only a few …

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