Image: Link between S-Boxes
Description: An example of a 64-bit bit P-Box (permutation box.) This box provides an example of a well designed P-Box as each S-Box (the black squares at the top and bottom) is connected to 8 others and no one pin ever connects into itself. The links between input and output are 0x01, 0x0e, 0x13, 0x1e, 0x22, 0x2e, 0x34, 0x3e, 0x03, 0x0d, 0x16, 0x1c, 0x25, 0x2f, 0x37, 0x38, 0x02, 0x0b, 0x17, 0x1f, 0x27, 0x2c, 0x32, 0x3b, 0x00, 0x09, 0x14, 0x18, 0x23, 0x2d, 0x35, 0x3a, 0x07, 0x08, 0x11, 0x19, 0x20, 0x2a, 0x36, 0x3d, 0x06, 0x0f, 0x15, 0x1b, 0x21, 0x28, 0x31, 0x3f, 0x04, 0x0a, 0x12, 0x1a, 0x26, 0x2b, 0x30, 0x3c, 0x05, 0x0c, 0x10, 0x1d, 0x24, 0x29, 0x33, 0x39. This represents a 0-indexed array (the first pin is zero, the second is one, etc.)
Title: Link between S-Boxes
Credit: Made using a custom Java program. Contact me for source code.
Author: Simpsons contributor
Usage Terms: Creative Commons Attribution-Share Alike 3.0
License: CC BY-SA 3.0
License Link: http://creativecommons.org/licenses/by-sa/3.0
Attribution Required?: Yes
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