Résumé: Encryption and decryption techniques can generally protect the confidentiality of communication delivered over networks, and the digital signature technique can be used to authenticate messages. These techniques—encryption, decryption and digital signature—are integrated in a new authenticated encryption scheme based on the elliptic curve cryptosystem, to achieve the confidentiality and authenticity of information. Moreover, the elliptic curve cryptosystem involves few operations and a short key, so the overheads of operation and communication are greatly reduced as compared to other systems, enabling the proposed scheme to be applied effectively in a network environment.

Langue: Anglais