dogtopus

#!/usr/bin/python3
# This tool exploits a weakness in RGSSAD file format in order to recover
# non-standard magic key (other than the default 0xdeadcafe key) used in some
# RGSSAD archives.
#
# RGSSAD uses a LCG (Linear Congruential Generator) (Xn+1 = aXn+c mod m) to
# generate xor pads in order to encrypt files and their metadata. However,
# the LCG implementation returns the seed (X0) instead of the result of a single
# iteration of the algorithm (X1) on its first iteration. The seed is then being
# used as the xor pad for the file name length (a 32-bit value) of the first

dogtopus

import hashlib

def secret(start: int, size: int) -> bytes:
    result = bytearray()
    add = start + size
    for i in range(size):
        result.append(start & 0xff)
        next = start + add
        add = start
        start = next

dogtopus

#!/usr/bin/env python3

from __future__ import annotations

'''
Convert sigrok JSON trace containing UART HCI traffic to HCI PCAP file.

The JSON trace files are typically acquired with:

sigrok-cli -i some-sigrok-session.sr -P uart:baudrate=<hci-baud> -A uart=tx-data:rx-data --protocol-decoder-jsontrace > some-json-trace-file.json

dogtopus

Jedi/Banana Info

Identification

FCCID

• AK8CUHZCT1: JDM-001, JDM-020(?, uses similar BT module)
• AK8CUHZCT1F1: JDM-011(D2?)
• AK8CUHZCT1A: JDM-030
• AK8CUHZCT2: JDM-040

dogtopus

#!/usr/bin/env python3

from Cryptodome.PublicKey import RSA
from Cryptodome.Signature import pss
from Cryptodome.Hash import SHA256
from Cryptodome.Math.Numbers import Integer

import io
import shutil
import sys

dogtopus

#!/usr/bin/env python3

import hid

import contextlib
import ctypes
import enum
import hashlib
import os
import sys

dogtopus

# Invokes [thefuck](https://github.com/nvbn/thefuck) when typing
# 'im a girl btw' in the shell.
#
# Inspired by Beluga's discord series. https://www.youtube.com/c/Beluga1
#
# Installation: add to anywhere in .bashrc.
#
# Effect:
#
# $ pacman -Syu

dogtopus

SEGA Grand Pianist

SD Card

SD card slot is on its own separate PCB connected via a 8-pin JST PH (?) jumper cable.

Tested with 2GB SD card formatted with FAT16. Cards smaller than 2GB might also work but are untested (since the smallest cards I got are 2GB).

(Official spec stated that it supports 128MB-2GB SD cards formatted with FAT16.)

dogtopus

SEGA Slider (-like) Implementation Mega List

Diva

Name	Author	Sensor Type	Construction	Controller Type	# of Controllers	# of Segments	LED Controller Type	# of LEDs/Pixels	Protocol	Open-source?
837-15275	SEGA	Capacitive	FR4 PCB	CY8C22345-24SXI	2	32	THL3504	64/32	sega-slider/UART/RS232	No
(No name)	benjilei	Capacitive	Pad hack (aggregated DS4 touchpad)	MXT series or TrueTouch series (DS4 Touchpad)+?	4?	80? (virtual)	None	0	maxTouch (or TrueTouch)/I2C	No (aggregation method unknown)
[(No name)][fa40]	fa40	Capacitive	Pad hack (copper foil on wood substrate)	ZET6223 (Brook Touchpad)	1	17	None	0	ZET6223/I2C	N/A
(No name)	Mo10	Capacitive	FR4 PCB	CY8C4104LQI-422	4	32	WS2812	32	Proprietary/I2C	No

dogtopus

#!/usr/bin/env python2
import yaml
import struct
import os

SUFFIX = (
    '.m4a',
    '_e.sht',
    '_n.sht',
    '_h.sht',