Benes fabric for bit level permutations
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United States of America Patent
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N/A
Issued Date -
Oct 17, 2002
app pub date -
Feb 15, 2001
filing date -
Feb 15, 2001
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
Methods and apparatuses for bit-level permutations using a Benes fabric are described. In one embodiment, the Benes fabric includes an interconnection of multiple 2.times.2 switches. The 2.times.2 switches can be in either a pass-through state or a cross-over state. Each switch is coupled to a control circuit or a control register to control the state of the switch. The manner in which the 2.times.2 switches are interconnected allows a variety of bit permutations to be selected. The bit permutations can be used, for example, for encryption or decryption of digital data.
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