Part of the Lecture Notes in Computer Science book series (LNCS, volume 196)
Efficient hardware and software implementations for the DES
Importance of DES: NBS, ANSI and ISO (in study) have DES as standards.
The available divices or programs have some tedious properties for an extensive use:
• hardware is expensive or slow, and limited,
• software is slow.
© Springer-Verlag Berlin Heidelberg 1985