A Secure and Efficient Encryption Protocol of RSA with Small Public Key and its Applications
Yanhua Guo · Mini-micro Systems · 2003
In this paper, an encryption protocol of RSA with small public key is presented. This protocol allows many users using the same small public key. When sending the same message to these users, the sender can make the small public key enlarge dynamically according the number of recipients. Furthermore, the decryption key can be computed efficiently by each recipient according to his private key. Therefore, this protocol can enhance the encryption speed of RSA while withstanding the low exponent attack.