BGN in LightPHE is orders of magnitude slower than PHE and CKKS for encrypted 128-d vector operations but shrinks public keys to 3-6 KB, at 2-digit precision that preserves ranking.
Sustainable cryptography: Carbon asymmetry in partially homomorphic encryption in the cloud.Symmetry, 18(5):832, 2026
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Bridging the Gap Between PHE and FHE: A Performance and Trade-off Analysis of The Somewhat Homomorphic BGN Cryptosystem
BGN in LightPHE is orders of magnitude slower than PHE and CKKS for encrypted 128-d vector operations but shrinks public keys to 3-6 KB, at 2-digit precision that preserves ranking.