Definition: Simprog refers to a method used in modern cryptography for creating secure digital signatures, often used in peer-to-peer (P2P) networks. It works by encoding message data into an algorithm's output, which then sends it on a network to be verified with the recipient. The term simprog is derived from "simulation of proof," suggesting that the process of generating a signature involves creating a simulated algorithm or system that would serve as proof for its authenticity in digital communication.