import hashlib

def audit_hash160(pubkey_hex):
    print(f"--- Public Key Hash (HASH160) Audit ---")

    # 1. Convert hex string to raw bytes
    pubkey_bytes = bytes.fromhex(pubkey_hex)
    print(f"[*] Input Key:   {pubkey_hex}")
    print(f"[*] Input Size:  {len(pubkey_bytes)} bytes")

    # 2. Perform SHA-256
    sha256_result = hashlib.sha256(pubkey_bytes).digest()
    print(f"[*] SHA256 Hash: {sha256_result.hex()}")

    # 3. Perform RIPEMD-160
    # Note: On some systems, ripemd160 requires a specific library.
    # We use hashlib.new('ripemd160') which is compatible with OpenSSL.
    try:
        h160 = hashlib.new('ripemd160')
        h160.update(sha256_result)
        hash160_result = h160.hexdigest()

        print(f"[*] RIPEMD160:  {hash160_result}")
        print(f"[SUCCESS] HASH160 (20 bytes): {hash160_result}")

    except Exception as e:
        print(f"[ERROR] RIPEMD160 failed. Ensure your OpenSSL supports it.")
        print(f"Details: {e}")

# --- Simulation ---

# Case: A standard Compressed Public Key
# This corresponds to the first address in many wallets
test_pubkey = "0279be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798"
audit_hash160(test_pubkey)