microsoft/SEAL

Features

• Homomorphic Encryption - Implements homomorphic encryption schemes (BFV, CKKS) to allow computation on encrypted data.
• Privacy-Preserving Computation Frameworks - Provides a framework where data stays encrypted throughout its lifecycle and service providers never access keys.
• Encrypted - Implements the CKKS scheme to enable fixed-precision floating-point operations on ciphertexts.
• Secure - Performs calculations on encrypted floating-point numbers with controlled precision for sensitive data.
• C++ Cryptography Frameworks - Provides a high-performance C++ codebase for secure computation and ciphertext manipulation.
• Ciphertext Noise Management - Uses modulus-switching to reduce the scale of ciphertext coefficients and maintain computational precision.
• Homomorphic Ciphertext Execution - Performs mathematical operations directly on ciphertexts to maintain privacy during processing.
• Moduli Switching - Implements ciphertext moduli switching to reduce noise growth and maintain precision during complex homomorphic computations.
• Encrypted Arithmetic - Executes additions and multiplications on encrypted integers and complex numbers without decryption.
• Approximate - Supports calculations on floating-point numbers with controlled precision via the CKKS scheme.
• Encrypted Integer Computation - Implements modular arithmetic specifically for encrypted integers using the BFV scheme.
• Homomorphic Scheme Implementations - Provides a specialized toolkit for computing on encrypted data using the BFV and CKKS schemes.
• End-to-End Encryption - Provides a framework where data remains encrypted throughout its entire computational lifecycle.
• C-API Wrappers - Provides object-oriented wrappers to expose C++ cryptographic primitives to .NET environments.
• Cross-Platform Compilers - Supports compiling the library for Android, iOS, WebAssembly, and .NET Standard.
• Cryptographic Wrappers - Provides specialized .NET language wrappers to integrate homomorphic encryption workflows into managed environments.
• Residue Number System Implementations - Implements RNS-based polynomial arithmetic to perform modular operations using standard machine-word integers.
• Cross-Platform Encryption Utilities - Provides a consistent encryption toolset deployable across multiple operating systems and runtimes.
• Cryptographic Parameter Validations - Ensures encryption keys and ciphertexts are compatible by matching them against shared security parameters.
• Parameter Validation - Provides mechanisms to check the correctness of plaintexts and keys against a specific context to ensure compatibility.
• Encrypted Storage - Enables the creation of storage architectures where the service provider cannot access data content due to user-held keys.
• Encrypted Storage Solutions - Enables the creation of storage systems where the provider cannot access the content.
• Strength Validations - Includes mechanisms to validate encryption parameters against industry security standards to ensure minimum strength requirements.

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