Poster: Toward an Optimal Implementation of Chacha20-Poly1305 for Smartnics

Secure communication relies heavily on authenticated encryption (AE). This poster implements ChaCha20Poly1305, a widely-used AE scheme, on a smartNIC, which is particularly beneficial for high-speed networks. The key design rationale is manually optimizing data layout on hierarchical memory devices on the smartNIC. Our implementation achieves <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$5.67 \times 10^{6}$</tex> and <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$0.58 \times 10^{6}$</tex> packets/s for 64-byte and 1024-byte packets, respectively. As a use case of our AE implementation, we also implement a subset of TLS.