com.xilinx.rapidwright.design.tools

Class DesignObfuscator

Object

com.xilinx.rapidwright.design.tools.DesignObfuscator

public class DesignObfuscator
extends Object

Flattens a design and obfuscates all of the names to SHA256 hashes. Note that the default constructor uses the current time to pepper the inputs to ensure that the obfuscated output is different each time the application is run. This behavior can be overridden by using the DesignObfuscator(String) constructor.

Constructor Summary

Constructors

Constructor and Description
DesignObfuscator() Creates a design obfuscator object to obfuscate the names in a design.
DesignObfuscator(String pepper) Create a design obfuscator with a custom pepper string.

Method Summary

Modifier and Type	Method and Description
void	dontObfuscate(String preserve) Specify a name that exists in the netlist to preserve.
String	hash(String name)
static void	main(String[] args)
Design	obfuscateDesign(Design d) Creates a new design that mirrors the provided design in physical implementation, but completely flattens logical hierarchy and obfuscates all logical names.
void	writeObfuscationMapFile(String fileName)

Methods inherited from class Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DesignObfuscator

public DesignObfuscator()

Creates a design obfuscator object to obfuscate the names in a design.

DesignObfuscator

public DesignObfuscator(String pepper)

Create a design obfuscator with a custom pepper string.

Parameters:

pepper - The string combined with names to be hashed.

Method Detail

dontObfuscate

public void dontObfuscate(String preserve)

Specify a name that exists in the netlist to preserve.

Parameters:

preserve - The name to preserve and won't be obfuscated.

hash

public String hash(String name)

obfuscateDesign

public Design obfuscateDesign(Design d)

Creates a new design that mirrors the provided design in physical implementation, but completely flattens logical hierarchy and obfuscates all logical names. This method preserves netlist properties but removes all XDC constraints.

Parameters:

d - The original design

Returns:

The flattened, obfuscated design

writeObfuscationMapFile

public void writeObfuscationMapFile(String fileName)

main

public static void main(String[] args)