ChaCha20–Poly1305 Authenticated Encryption with Additional Data for Transport Layer Security 1.3

• DOI: 10.3390/cryptography6020030
• Publication Date: 2022-06-17T09:25:11Z
• Authors: Ronaldo Serrano; Ckristian Duran; Marco Sarmiento; Cong-Kha Pham; Trong-Thuc Hoang
• Keywords: Authenticated Encryption; Transport Layer Security; Virtex

Transport Layer Security (TLS) provides a secure channel for end-to-end communications in computer networks. The ChaCha20–Poly1305 cipher suite is introduced TLS 1.3, mitigating the sidechannel attacks suites based on Advanced Encryption Standard (AES). However, few implementations cannot provide sufficient speed compared to other encryption standards with Authenticated Associated Data (AEAD). This paper shows ChaCha20 and Poly1305 primitives. In addition, compatible AEAD 1.3 implemented fault detector reduce problems fragmented blocks. implementation reaches 1.4-cycles-per-byte standalone core. Additionally, system presents 11.56-cycles-per-byte an RISC-V environment using TileLink bus. Xilinx Virtex-7 XC7VX485T Field-Programmable Gate-Array (FPGA) denotes 10,808 Look-Up Tables (LUT) 3731 Flip-Flops (FFs), represented 23% 48% of Poly1305, respectively. Finally, hardware demonstrates viability different option from conventional AES 1.3.