Homomorphic Encryption library or HElib is a

free Free may refer to: Concept * Freedom, the ability to act or change without constraint or restriction * Emancipate, attaining civil and political rights or equality * Free (''gratis''), free of charge * Gratis versus libre, the difference betw ...

and

open-source Open source is source code that is made freely available for possible modification and redistribution. Products include permission to use and view the source code, design documents, or content of the product. The open source model is a decentrali ...

cross platform Within computing, cross-platform software (also called multi-platform software, platform-agnostic software, or platform-independent software) is computer software that is designed to work in several computing platforms. Some cross-platform softw ...

software developed by

IBM International Business Machines Corporation (using the trademark IBM), nicknamed Big Blue, is an American Multinational corporation, multinational technology company headquartered in Armonk, New York, and present in over 175 countries. It is ...

that implements various forms of

homomorphic encryption Homomorphic encryption is a form of encryption that allows computations to be performed on encrypted data without first having to decrypt it. The resulting computations are left in an encrypted form which, when decrypted, result in an output th ...

History

HElib was primarily developed by

Shai Halevi Shai Halevi (; born 1966) is a computer scientist who works on cryptography research at Amazon Web Services. Born in Israel in 1966, Halevi received a B.A. and M.Sc. in computer science from the Technion, Israel Institute of Technology in 1991 a ...

and

Victor Shoup Victor Shoup is a computer scientist and mathematician. He obtained a PhD in computer science from the University of Wisconsin–Madison in 1989, and he did his undergraduate work at the University of Wisconsin-Eau Claire. He is a professor at t ...

, shortly after

Craig Gentry Craig Alan Gentry (born November 29, 1983) is an American former professional baseball outfielder. He played in Major League Baseball (MLB) for the Texas Rangers (baseball), Texas Rangers, Oakland Athletics, Los Angeles Angels and Baltimore Oriol ...

was a researcher at

, with the initial release being on May 5, 2013.

Features

The library implements the Brakerski-Gentry-Vaikuntanathan (BGV) fully homomorphic encryption scheme, as well as optimizations such as Smart-Vercauteren ciphertext packing techniques. HElib is written in C++ and uses the NTL mathematical library.

References

{{IBM FOSS Homomorphic encryption Cryptographic software Free and open-source software IBM software Software using the Apache license Free software programmed in C++