Ethereum generate private key, public key, public address using openssl secp256k1 keccak-256sum bash

ethereum_generate_keys.sh

ethereum_generate_keys() {
  # Generate the private key and public key
  local key=$(openssl ecparam -name secp256k1 -genkey -noout | openssl ec -text -noout 2>/dev/null)

  # Extract and clean the public key
  local pub=$(echo "$key" | grep pub -A 5 | tail -n +2 | tr -d '\n[:space:]:' | sed 's/^04//')

  # Extract and clean the private key
  local priv=$(echo "$key" | grep priv -A 3 | tail -n +2 | tr -d '\n[:space:]:' | sed 's/^00//' | sed 's/^priv//')

  # Generate the address
  local address=0x$(echo "$pub" | keccak-256sum -x -l | tr -d ' -' | tail -c 41)

  # Print the results
  echo "Private Key: $priv"
  echo "Public Key: $pub"
  echo "Address: $address"
}

# Example
# $ ethereum_generate_keys
# Private Key: fb8b62ca8b89a19157ec0ab0191c9dfd8a0656f51f1887f8dd6eff19366c3b5d
# Public Key: 371a2b8dd0d70f0b005e88fad7b97d219337a8d192f929e212a93f28ecaa2d259906f96f627736b14a4008400303b0ee9567af2d12f260fd6ff165464db34a24
# Address: 0x48e124660d29a74a49f7d4e833bec84b34d79353