Improved IDEA

Data security is an important issue in today's computer networks. This paper presents the improved IDEA chip, which implements a new version of the IDEA cryptographic algorithm. Improved IDEA is oriented towards computer network applications demanding high throughput. Its architecture was based on architecture of the HIPCrypto chip, which exploits both the spatial and the temporal parallelism available in the IDEA algorithm. These new versions can encrypt/decrypt at data rates up to 6.5 Gbps.