From: Dongsoo Lee > Sent: 12 January 2024 02:29 > > For the x86_64 environment, we use AVX-512F/AVX2/SSE2 instructions. > Since LEA uses 128-bit blocks of four 32-bit integers, for optimization, > SSE2 encrypts 4 blocks, AVX2 encrypts 4/8 blocks, and AVX-512F encrypts > 4/8/16 blocks at a time. > > Our submission provides a optimized implementation of ECB, CBC > decryption, CTR, and XTS cipher operation modes on x86_64 CPUs > supporting. Given you say in 0/0: The LEA algorithm is a lightweight block cipher that processes data blocks of 128-bits and has three different key lengths, each with a different number of rounds: Just how big is it ? Doesn't look 'lightweight' to me. David - Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK Registration No: 1397386 (Wales)
