Pointcheval–Stern signature algorithm

The Pointcheval–Stern signature algorithm is a cryptographic signature scheme proposed by David Pointcheval and Serge Stern in 1996. It is noted for its security against various types of attacks and is based on the hardness of the computational problem related to the discrete logarithm. ### Key Features: 1. **Security Model**: The Pointcheval–Stern signature algorithm is designed to be secure in a provably secure way.