Version v0.3.25 - Clean up directory structure

HARDWARE_RNG_STATUS.md

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-
-# Hardware RNG Implementation Status
-
-## Overview
-
-The OTP cipher application now includes comprehensive hardware Random Number Generator (RNG) device support with automatic detection, device identification, and graceful handling of different device types.
-
-## Supported Devices
-
-### ✅ Fully Supported (TrueRNG Family)
-- **TrueRNG Original** (VID: 04d8, PID: f5fe)
-- **TrueRNG Pro** (VID: 04d8, PID: 0aa0)  
-- **TrueRNG Pro V2** (VID: 04d8, PID: ebb5)
-
-These devices work via serial port communication and are fully integrated into the entropy collection system.
-
-### ⚠️ Detected but Not Supported (SwiftRNG Family)
-- **SwiftRNG** (VID: 1fc9, PID: 8111)
-
-SwiftRNG devices are detected and identified but cannot be used via serial port communication. They require the official SwiftRNG API with libusb-1.0 integration.
-
-## Implementation Features
-
-### Device Detection
-- **Automatic scanning** of `/dev/ttyUSB*` and `/dev/ttyACM*` devices
-- **VID/PID identification** via sysfs to distinguish device types
-- **Multi-device support** with interactive selection menus
-- **Real-time status indicators** showing device availability
-
-### Device Communication
-- **Optimized serial port configuration** for each device type
-- **Timeout protection** to prevent hanging on unresponsive devices
-- **Error handling** with clear diagnostic messages
-- **Progress tracking** with speed estimation for large entropy collections
-
-### Integration Points
-- **Pad enhancement** via entropy addition to existing pads
-- **Interactive menus** for device selection when multiple devices are present
-- **Command-line support** for automated workflows
-- **Graceful fallback** to other entropy sources when no hardware RNG is available
-
-## Technical Implementation
-
-### Core Functions
-- `detect_all_hardware_rng_devices()` - Scans and identifies all connected devices
-- `collect_truerng_entropy_from_device()` - Collects entropy from TrueRNG devices

TODO.md

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-# TODO
-
-## The pad menu in interactive encrypt mode gives numbers instead of checksum selection

debug.c

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-int main() { printf("Testing direct filename: %d\n", strncmp("97d9d82b5414a9439102f3811fb90ab1d6368a00d33229a18b306476f9d04f82.pad", "97", 2)); return 0; }

manual_test.sh

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-#!/bin/bash
-
-echo "Manual OTP Test"
-echo "==============="
-
-# Generate a test pad
-echo "Generating test pad..."
-./otp generate demo 1
-echo
-
-# Create a test message file for encryption
-echo "Creating test message..."
-echo "This is a secret message for testing OTP encryption!" > test_message.txt
-
-# Test encryption interactively
-echo "Testing encryption (will prompt for input):"
-echo "Please enter: This is a secret message for testing OTP encryption!"
-./otp encrypt demo
-
-echo
-echo "Files created:"
-ls -la demo.*