0dayinc/pwn/tempest

PWN::SDR::Decoder::Tempest

Pure-Ruby TEMPEST / Van Eck raster decoder. Recovers a greyscale candidate raster from AM on a display pixel-clock harmonic captured as I/Q (RTL-SDR, HackRF, Pluto, Soapy, or a .cu8/.cs16 file). Magnitude envelope is resampled to one sample per pixel, packed into H×V lines using a VESA timing, and written as Netpbm P5 PGM. No TempestSDR / GNU Radio dependency. Assumes known timing and frame origin; no automatic sync acquisition, drift tracking, or proof that the raster is a monitor image. Sample-and-hold interpolation cannot recover pixel detail absent from the capture bandwidth.

When to use

Call PWN::SDR::Decoder::Tempest from pwn_eval when the task needs this module. Do not reimplement it in shell.

Methodologies

Generated from pwn/sdr/decoder/tempest.rb. Prefer the public class methods below. Class methods take (opts = {}) and read opts.

How to call

PWN::SDR::Decoder::Tempest.help
PWN::SDR::Decoder::Tempest.modes(opts)

Public methods

• modes
• resolve_timing
• reconstruct
• detect
• decode
• authors
• help

Source

pwn/sdr/decoder/tempest.rb

Verification

PWN::SDR::Decoder::Tempest.respond_to?(:modes) after the module is loaded. Read the source for parameter names.