alt.hn

3/15/2026 at 7:11:32 AM

SpiceCrypt: A Python library for decrypting LTspice encrypted model files

https://github.com/jtsylve/spice-crypt

by luu

3/16/2026 at 5:01:39 AM

Coming from a brief failed attempt of using ghidra to see if keys were part of binary, this is a welcome news.

Next on wishlist is someone doing the same for encrypted fpga verilog blobs.

by rshm

3/16/2026 at 12:02:54 PM

yes please. I want to destroy the business model of making me pay money for hardware (understandable because it is made of atoms) and then making me pay for software blocks / DLC to be able to use the hardware

by Schlagbohrer

3/16/2026 at 4:10:01 AM

The file header contains two 32-bit keys used to derive a substitution table index and step value for decryption.

In other words, obfuscation.

by userbinator