libaegis

Portable C implementations of AEGIS (AEGIS-128L and AEGIS-256), with runtime CPU detection.

Features

• AEGIS-128L with 16 and 32 bytes tags
• AEGIS-256 with 16 and 32 bytes tags
• Encryption and decryption with attached and detached tags
• Incremental encryption and decryption.

Installation

Compilation with zig:

zig build -Drelease

The library is installed in the zig-out/lib folder.

Public inludes are in the src/include folder.

Compilation with cmake:

mkdir build
cd build
cmake -DCMAKE_INSTALL_PREFIX=/install/prefix ..
make install

Direct inclusion

Copy everything in src directly into your project, and compile everything like regular C code. No special configuration is required.

Usage

Include <aegis.h> and call aegis_init() prior to doing anything else with the library.

aegis_init() checks the CPU capabilities in order to later use the fastest implementations.