Question 1

How to install HAL on Ubuntu?

Accepted Answer

HAL provides build instructions in its Wiki for Ubuntu and other systems, requiring compilation from source with dependencies like C++ compilers and Python. The GitHub actions badges show testing on Ubuntu 22.04 and 24.04, but setup is not straightforward and may involve manual steps.

Question 2

HAL vs. Ghidra for hardware reverse engineering?

Accepted Answer

HAL is specifically designed for hardware netlist analysis of FPGAs and ASICs, with tools like dataflow analysis and netlist simulation, while Ghidra is primarily for software binary analysis. HAL offers Python bindings and a GUI for netlists, but Ghidra has a larger ecosystem and community for software tools.

Question 3

How to parse a Verilog netlist in HAL?

Accepted Answer

Use the included Verilog parser plugin by running 'hal -g' to start the GUI and selecting 'Import Netlist,' or via command line. Ensure you have a compatible gate library, either from the shipped definitions or provided manually, as noted in the quickstart guide.

Question 4

Does HAL support ASIC netlist analysis?

Accepted Answer

Yes, HAL is designed to parse netlists from ASICs and FPGAs, with parsers for VHDL, Verilog, and Liberty gate libraries. It includes features like dataflow analysis and simulation that are applicable to both ASIC and FPGA netlists for security research.

Question 5

How to write a custom plugin for HAL?

Accepted Answer

HAL's plugin system is based on C++, requiring extension of the C++ API and compilation. Documentation is available in the API docs, but it demands proficiency in C++ and understanding of HAL's internal architecture, which can be challenging without prior experience.

Question 6

Is HAL suitable for teaching hardware security?

Accepted Answer

Yes, it's used in university lectures and includes example projects like 'fsm' in the repository. The GUI and Python integration make it accessible for educational purposes, though the setup complexity and alpha status might require instructor support for smooth classroom use.

HAL – The Hardware Analyzer

What is HAL – The Hardware Analyzer?

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