AVX512Crypto: Parallel Implementations of Korean Block Ciphers Using AVX-512

Cryptographic algorithms are widely used as the foundation of various security systems and applications (e.g., secure communication, blockchain systems, cloud services). A block cipher is an essential cryptographic algorithm to achieve confidentiality. This paper proposes parallel implementations Korean ciphers using Advanced Vector eXtension (AVX)-512, which a new Single instruction, multiple data (SIMD) instruction set that has recently been integrated into several high-end Intel central processing unit (CPU). Target LEA, HIGHT, CHAM ciphers. Additionally, this also applicable implementing techniques, designed for each algorithm. These enable use instructions in AVX-512 properly The proposed LEA-128 (192, 256 resp.)implementation demonstrates performance improvement 506.09% (323.31%, 386.76% resp.) compared reference code, our HIGHT implementation exhibits 520.88% code. In addition, CHAM-64/128 (128/256 shows 1,325.81% (833.61% we measured with 32MB long message. showed 556.32% (594.74%, 615.38% Also, 834.40%, 1,332.40% (832.86% (CHAM-128/256 resp.), by To best knowledge, first result study optimize set. methods can effectively be Addition, Rotation, XOR (ARX)-based algorithms, enabling efficient environments such hash-based signatures, service environments, gateway, edge computing.