Portable data encryption approaches

The National PersonaCard data security cards provide powerful data security in a personal, portable, and affordable form. Based on National´s proprietary iPower technology, they make high-level data security widely available and practical for all kinds of applications, including network communications, electronic and wireless data exchange, secure file storage, and systems for access, authorization, and identification. National PersonaCards provide the highest level of commercially available security over any network for electronic transactions of any type. By adding this high level of security, the PersonaCard enables you to operate over networks with the same confidence you have in face-to-face transactions. The National PersonaCards are intelligent cards capable of performing sophisticated data encryption and decryption functions. Based on public-key encryption technology, the PersonaCards perform complex cryptographic operations and store the private keys that are required to sign and decrypt information. They also provide features that support key escrowing