Digital signature algorithm for securing digital identities

摘要

A rapid growth of sensitive services on the Internet makes digital identifies of individuals more important than before. The digital identify can be maintained and certified regarding scalability on the public key infrastructure (PKI) where each user is given a private key-public key pair. However, if a user's private key is compromised, the digital identity fails because the security of public key cryptography depends upon the security of private keys. So care must be taken by users to store and carry each private key [7]. This paper examines and presents a practical method for securing the digital identity in a digital signature algorithm (DSA) and expediting its deployment.