Security is a burning issue for networking-how to ensure sensitive data reaches only the intended audience and no one else. Cryptography needs to be supported on all levels of the network to ensure the protected flow of information across the network. Not only must application data be secure, but information for the connectivity and operating system levels must also be protected. VIS supports flexible data encryption with its unique filtering capabilities. The variety of integer operations and their ability to work on several integer words in parallel give the cryptographer a wealth of tools to fashion a robust encryption scheme.
Data integrity is another crucial area in networks, demanding considerable attention.
As data flows over the network, it cannot be corrupted otherwise the network is no longer a viable means of communication. Check summing with signature generation is one class of algorithms used to examine incoming data for its integrity. In this operation, the processor adds up the data that comes in and looks at the overflow. The overflow is called the signature and if it matches the signature sent, the data has not been corrupted during transmission over the network. Algorithms for checksumming with signature generation move through vast amounts of data, adding up thousands, even millions of pieces of data.