Analysis of Different Types of Digital Signature

A signature scheme is a method of signing a message stored in electronic form. Such signed message can be transmitted over a computer network. Digital signatures have many applications in information security, related to authentication, data integrity, and non-repudiation. One of the most important applications of digital signatures is the public keys certification in large networks. This paper is dedicated to analyze different digital signature schemes term of the domain of the group used and the analysis three categories are proposed to increase the development directivity of new efforts toward producing new digital signature algorithms.