Function deriveClassicalPublicKey

src/cli.cpp:69–99

Helper: derive classical public key from private key using ethers.js

// Helper: derive classical public key from private key using ethers.js
static Address deriveClassicalPublicKey(const PrivateKey &private_key) {
  // Use the same approach as e2e_test.sh - call ethers.js from ethereum-sdk
  std::string command = "cd " +
                        std::string(getenv("PWD") ? getenv("PWD") : ".") +
                        "/ethereum-sdk && node -e \"console.log(new "
                        "(require('ethers').Wallet)('" +
                        private_key + "').address)\"";

  FILE *pipe = popen(command.c_str(), "r");
  if (!pipe) {
    throw std::runtime_error("Failed to execute ethers.js command");
  }

  std::string result;
  char buffer[128];
  while (fgets(buffer, sizeof(buffer), pipe) != nullptr) {
    result += buffer;
  }

  int status = pclose(pipe);
  if (status != 0) {
    throw std::runtime_error("ethers.js command failed: " + result);
  }

  // Remove newline and return the address
  if (!result.empty() && result[result.length() - 1] == '\n') {
    result.erase(result.length() - 1);
  }

  return toChecksumAddress(result);
}

// Helper: generate a cryptographically secure random 32-byte array
static std::array<uint8_t, 32> randomSeed32() {