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Integrating the Data Encryption Standard into Computer Networks

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1 Author(s)
Smid, M.E. ; Center for Programming Science and Technology, Institute for Computer Sciences Technology, National Bureau of Standards, Washington, D.C., USA

The NBS Data Encryption Standard may be integrated into computer networks to protect personal (nonshared) files, to communicate securely both on- and off-line with local and remote users, to protect against key substitution, to authenticate system users, to authenticate data, and to provide digital signatures using a nonpublic key encryption algorithm. Key notarization facilities give users the capability of exercising a set of commands for key management as well as for data encryption functions. The facilities perform notarization which, upon encryption, seals a key or password with the identities of the transmitter and intended receiver. Thus, in order to decrypt a message, the receiver must authenticate himself and supply the correct identity of the transmitter. This feature eliminates the threat of key substitution which must be protected against to attain a high level of security.

Published in:

Communications, IEEE Transactions on  (Volume:29 ,  Issue: 6 )