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A Rust library for lattice-based additive homomorphic encryption.
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facebookresearch/Cupcake
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Cupcake is an efficient Rust library for the (additive version of) Fan-Vercauteren homomorphic encryption scheme, offering capabilities toencrypt vectors, add/subtract two encrypted vectors, and rerandomize a ciphertext.
Cupcake requires or works with
- Mac OS X or Linux
Add the following line to the dependencies of your Cargo.toml:
Cupcake = "0.2.1"
git clone https://github.com/facebookresearch/Cupcakecd cupcakecargo build --release
Several examples are included inexamples/<name>.rs
, and can be run viacargo run --example <name>
Documentation on the API can be built fromcargo doc
.
We have included benchmarks and tests for both homomorphic operations and underlying arithmetic operations. They can be run usingcargo bench
andcargo test
.
Currently, we provide only one set of secure parameter, namelyFV::<Scalar>::default_2048();
. This parameter set has an estimated security level of about 128 bits accordingto the homomorphic encryption security standardslink. Use other parameters at your own risk! With the default parameter set, the plaintext type is vector ofu8
with a fixed length 2048.
See theCONTRIBUTING file for how to help out.
Cupcake is MIT licensed, as found in the LICENSE file.
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A Rust library for lattice-based additive homomorphic encryption.