seal ☆

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Description:
Easy-to-use homomorphic encryption library

Type: Formula | Tracked Since: Dec 28, 2025

Links: Homepage | @MSFTResearch | formulae.brew.sh

Category: Security

Tags: cryptography homomorphic-encryption security privacy encryption

Install: brew install seal

About:
Microsoft SEAL is an open-source, easy-to-use homomorphic encryption library that enables computations on encrypted data without decryption. It provides developers with the tools to implement privacy-preserving applications, ensuring data confidentiality even during processing. The library supports both BFV and CKKS schemes for arithmetic operations on integer and real numbers.

Key Features:

Supports both BFV and CKKS encryption schemes
C++ core library with C# and Python wrappers
Automatic parallelization via OpenMP
Comprehensive documentation and examples

Use Cases:

Secure cloud computing with untrusted servers
Privacy-preserving machine learning inference
Encrypted data analysis and aggregation
Confidential financial computations

Alternatives:

Palisade – Alternative homomorphic encryption library with broader algorithm support but steeper learning curve
TFHE – Focuses on fast bootstrapping for boolean circuits, while SEAL specializes in arithmetic circuits

Version History

Detected	Version	Rev	Change	Commit
Sep 15, 2025 4:57pm		0	VERSION_BUMP	307649d6
Sep 14, 2024 5:29pm		0	VERSION_BUMP	aa627b55