Paper 2025/377 Original: eprint.iacr.org/2025/377 ↗

HiAE: A High-Throughput Authenticated Encryption Algorithm for Cross-Platform Efficiency

Abstract

This paper addresses the critical challenges in designing cryptographic algorithms that achieve both high performance and cross-platform efficiency on ARM and x86 architectures, catering to the demanding requirements of next-generation communication systems, such as 6G and GPU/NPU interconnections. We propose HiAE, a high-throughput authenticated encryption algorithm optimized for performance exceeding 100 Gbps and designed to meet the stringent security requirements of future communication networks. HiAE leverages the stream cipher structure, integrating the AES round function for non-linear diffusion. Our design achieves exceptional efficiency, with benchmark results from software implementations across various platforms showing over 340 Gbps on x86 processors and 180 Gbps on ARM devices in AEAD mode, making it the fastest AEAD solution on ARM chips and setting a new performance record on the latest x86 processors.