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openfhe.R

This is an interface to the Fully Homomorphic Encryption library developed by OpenFHE.

The companion package homomorpheR (version >= 1.0, soon to be on CRAN) imports this package and includes a number of illustrative vignettes. Specifically, the examples demonstrate how to use existing R functions and optimizers to implement a homomorphic-encryption protocol across multiple sites.

Schemes

• BFV / BGV: exact integer arithmetic
• CKKS: approximate real-number arithmetic (with sin, cos, logistic, bootstrapping)
• FHEW / TFHE (BinFHE): Boolean circuit evaluation

All four FHE subsystems (BFV, BGV, CKKS, BinFHE) are exposed. In addition, we provide facilities for serialization, threshold FHE, CKKS bootstrapping, transcendental function evaluation, and CKKS hoisted (fast) rotations.

Quick Start

library(openfhe.R)

# BFV: exact integer arithmetic
cc <- fhe_context("BFV", plaintext_modulus = 65537, multiplicative_depth = 2)
keys <- key_gen(cc, eval_mult = TRUE)

ct1 <- encrypt(keys@public, make_packed_plaintext(cc, 1:8), cc = cc)
ct2 <- encrypt(keys@public, make_packed_plaintext(cc, 10:17), cc = cc)

# Compute on encrypted data
result <- decrypt(ct1 + ct2, keys@secret, cc = cc)
get_packed_value(result)[1:8]
#> [1] 11 13 15 17 19 21 23 25

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.