The Application of ElGamal Encryption Technology to the Information Security of Digital Library

Nowadays, the construction and application of digital library leads a new era of the way people obtain knowledge and information, and promotes the academic exchanges and social progress. Digital library, however, also involves great risk; hacker attacks become the main threat of the information security of digital library, and may probably cause the loss and damage of the information resources in library. This article mainly introduces the advantages and the potential safety hazard of digital library, and then makes an analysis aiming at the information security of digital library, and finally puts forward an algorithm based on ElGamal encryption to protect library information encryptedly, and effectively guarantee the information security of digital library.