On Multiplications with Unsaturated Limbs

This post is about a rather technical coding strategy choice that arises when implementing cryptographic algorithms on some elliptic curves, namely how to represent elements of the base field. We will be discussing Curve25519 implementations, in particular as part of Ed25519 signatures, as specified in RFC 8032. The most widely used Rust implementation of these […]

algorithms base coding cryptographic cryptographic algorithms curve25519 ed25519 elliptic implementation limbs rfc rust signatures strategy technical