Microsoft SEAL

Microsoft SEAL

Developer(s)	Microsoft Research
Initial release	December 3, 2018; 5 years ago (2018-12-03)

Stable release	4.0.0 / March 17, 2022; 2 years ago (2022-03-17)

Repository	github.com/Microsoft/SEAL
Written in	C++
Operating system	Microsoft Windows, macOS, Linux, Android
Platform	IA-32, x86-64, ARM64
Type	Homomorphic encryption library
License	MIT License
Website	www.microsoft.com/en-us/research/project/microsoft-seal

Simple Encrypted Arithmetic Library or SEAL is a free and open-source cross platform software library developed by Microsoft Research that implements various forms of homomorphic encryption.^[1]^[2]

History

Development originally came out of the Cryptonets paper,^[3] demonstrating that artificial intelligence algorithms could be run on homomorphically encrypted data.^[4]

It is open-source (under the MIT License) and written in standard C++ without external dependencies and so it can be compiled cross platform. An official .NET wrapper written in C# is available and makes it easier for .NET applications to interact with SEAL.

Features

Algorithms

Microsoft SEAL supports both asymmetric and symmetric (added in version 3.4) encryption algorithms.

Scheme types

Microsoft SEAL comes with two different homomorphic encryption schemes with very different properties:

BFV:^[5] The BFV scheme allows modular arithmetic to be performed on encrypted integers. For applications where exact values are necessary, the BFV scheme is the only choice.
CKKS:^[6] The CKKS scheme allows additions and multiplications on encrypted real or complex numbers, but yields only approximate results. In applications such as summing up encrypted real numbers, evaluating machine learning models on encrypted data, or computing distances of encrypted locations CKKS is going to be by far the best choice.

Compression

Data compression can be achieved by building SEAL with Zlib support. By default, data is compressed using the DEFLATE algorithm which achieves significant memory footprint savings when serializing objects such as encryption parameters, ciphertexts, plaintexts, and all available keys: Public, Secret, Relin (relinearization), and Galois. Compression can always be disabled.

Availability

There are several known ports of SEAL to other languages in active development:

C++

Microsoft SEAL (Microsoft's source)

C#/F#

NuGet (Microsoft's official package)

Python

JavaScript

TypeScript

node-seal

References

^ Microsoft SEAL is an easy-to-use and powerful homomorphic encryption library.: microsoft/SEAL, Microsoft, 2019-11-20, archived from the original on 2019-05-31, retrieved 2019-11-20
^ Coron, Jean-Sébastien; Nielsen, Jesper Buus (2017-04-10). Advances in Cryptology – EUROCRYPT 2017: 36th Annual International Conference on the Theory and Applications of Cryptographic Techniques, Paris, France, April 30 – May 4, 2017, Proceedings. Springer. p. 104. ISBN 9783319566146.
^ Downlin, Nathan; Gilad-Bachrach, Ran; Laine, Kim; Lauter, Kirstin; Naehrig, Michael; Wernsing, John (2016-05-25). "CryptoNets: Applying Neural Networks to Encrypted Data with High Throughput and Accuracy" (PDF). Proceedings of the 33rd International Conference on Machine Learning. Archived from the original (PDF) on 2018-08-26.
^ "The Microsoft Simple Encrypted Arithmetic Library goes open source". Microsoft Research. 2018-12-03. Archived from the original on 2019-11-12. Retrieved 2019-11-20.
^ Fan, Junfeng; Vercauteren, Frederik (2012). "Somewhat Practical Fully Homomorphic Encryption". {{cite journal}}: Cite journal requires |journal= (help)
^ Cheon, Jung Hee; Kim, Andrey; Kim, Miran; Song, Yongsoo (2017). "Homomorphic Encryption for Arithmetic of Approximate Numbers". In Takagi, Tsuyoshi; Peyrin, Thomas (eds.). Advances in Cryptology – ASIACRYPT 2017. Lecture Notes in Computer Science. Vol. 10624. Cham: Springer International Publishing. pp. 409–437. doi:10.1007/978-3-319-70694-8_15. ISBN 978-3-319-70694-8. S2CID 3164123.

External links

Microsoft free and open-source software (FOSS)

Overview

Software

Applications	3D Movie Maker Atom Conference XP Family.Show File Manager Open Live Writer Microsoft PowerToys Terminal Windows Calculator Windows Console Windows Package Manager WorldWide Telescope XML Notepad
Video games	Allegiance
Programming languages	Bosque C# Dafny F# F* GW-BASIC IronPython IronRuby Lean P Power Fx PowerShell Project Verona Q# Small Basic Online TypeScript Visual Basic
Frameworks, development tools	.NET .NET Framework .NET Gadgeteer .NET MAUI .NET Micro Framework AirSim ASP.NET ASP.NET AJAX ASP.NET Core ASP.NET MVC ASP.NET Razor ASP.NET Web Forms Avalonia Babylon.js BitFunnel Blazor C++/WinRT CCF ChakraCore CLR Profiler Dapr DeepSpeed DiskSpd Dryad Dynamic Language Runtime eBPF on Windows Electron Entity Framework Fluent Design System Fluid Framework Infer.NET LightGBM Managed Extensibility Framework Microsoft Automatic Graph Layout Microsoft C++ Standard Library Microsoft Cognitive Toolkit Microsoft Design Language Microsoft Detours Microsoft Enterprise Library Microsoft SEAL mimalloc Mixed Reality Toolkit ML.NET mod_mono Mono MonoDevelop MSBuild MsQuic Neural Network Intelligence npm NuGet OneFuzz Open Management Infrastructure Open Neural Network Exchange Open Service Mesh Open XML SDK Orleans Playwright ProcDump ProcMon Python Tools for Visual Studio R Tools for Visual Studio RecursiveExtractor Roslyn Sandcastle SignalR StyleCop SVNBridge T2 Temporal Prover Text Template Transformation Toolkit TLA+ Toolbox U-Prove vcpkg Virtual File System for Git Voldemort VoTT Vowpal Wabbit Windows App SDK Windows Communication Foundation Windows Driver Frameworks KMDF UMDF Windows Forms Windows Presentation Foundation Windows Template Library Windows UI Library WinJS WinObjC WiX XDP for Windows XSP xUnit.net Z3 Theorem Prover
Operating systems	MS-DOS (v1.25, v2.0 & v4.0) Barrelfish SONiC Azure Linux
Other	ChronoZoom Extensible Storage Engine FlexWiki FourQ Gollum Project Mu ReactiveX SILK TLAPS TPM 2.0 Reference Implementation WikiBhasha

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