ALTCHA PoW v2 C++ Solver

A C++ implementation of the ALTCHA Proof-of-Work (PoW) v2 mechanism. This tool is designed for benchmarking and testing.

Usage

The solver accepts a JSON challenge and an optional thread count.

./build/altcha_solver <challenge_json> [num_threads]

Examples

Auto-detect threads:

./build/altcha_solver challenge.json

Manual thread count (e.g., 8 threads):

./build/altcha_solver challenge.json 8

Prerequisites

Ensure you have the following dependencies installed on your system:

• OpenSSL (for SHA hashing)
• Argon2 (the core hashing algorithm for v2)
• C++17 compatible compiler

Installation & Build

Linux (Debian/Ubuntu)

# Install dependencies
sudo apt install -y build-essential libssl-dev libargon2-dev

# Compile
g++ src/altcha_solver.cpp -o build/altcha_solver \
    -std=c++17 -O3 \
    -lssl -lcrypto -largon2 -pthread

macOS

# Install dependencies
brew install openssl argon2

# Compile
clang++ src/altcha_solver.cpp -o build/altcha_solver \
    -std=c++17 -O3 -arch arm64 \
    -I$(brew --prefix)/opt/openssl/include \
    -I$(brew --prefix)/opt/argon2/include \
    -L$(brew --prefix)/opt/openssl/lib \
    -L$(brew --prefix)/opt/argon2/lib \
    -lcrypto -largon2 -pthread

License

MIT