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import hashlib
from cryptography.hazmat.primitives.asymmetric import ec, rsa
from cryptography.hazmat.primitives import serialization, hashes
from cryptography.hazmat.primitives.asymmetric import padding

# Encryption and Decryption
def encrypt(data):
    # Generate ECC private key
    private_key = ec.generate_private_key(ec.SECP256R1())

    # Generate RSA-512 public key
    rsa_private_key = rsa.generate_private_key(
        public_exponent=65537,
        key_size=512
    )
    rsa_public_key = rsa_private_key.public_key()

    # Encrypt data using RSA-512 public key
    encrypted_data = rsa_public_key.encrypt(
        data.encode(),
        padding.OAEP(
            mgf=padding.MGF1(algorithm=hashes.SHA256()),
            algorithm=hashes.SHA256(),
            label=None
        )
    )

    # Sign the encrypted data using ECC private key
    signature = private_key.sign(
        encrypted_data,
        ec.ECDSA(hashes.SHA256())
    )

    return encrypted_data, signature


def decrypt(encrypted_data, signature):
    # Load ECC private key
    private_key = ec.generate_private_key(ec.SECP256R1())

    # Load RSA-512 private key
    with open('private_key.pem', 'rb') as key_file:
        rsa_private_key = serialization.load_pem_private_key(
            key_file.read(),
            password=None
        )

    # Verify the signature using ECC public key
    public_key = private_key.public_key()
    public_key.verify(
        signature,
        encrypted_data,
        ec.ECDSA(hashes.SHA256())
    )

    # Decrypt the data using RSA-512 private key
    decrypted_data = rsa_private_key.decrypt(
        encrypted_data,
        padding.OAEP(
            mgf=padding.MGF1(algorithm=hashes.SHA256()),
            algorithm=hashes.SHA256(),
            label=None
        )
    )

    return decrypted_data.decode()


# Cryptocurrency Transaction
def send_cryptocurrency(recipient, amount):
    # Implement the actual cryptocurrency transaction logic using ECC and RSA-512
    # Connect to the blockchain network, verify recipient address, and initiate the transaction
    # Use ECC for signing the transaction and RSA-512 for encryption/decryption
    transaction_successful = True  # Placeholder transaction success
    return transaction_successful


# IoT Integration
def control_iot_device(device_id, action):
    # Implement IoT device control logic using ECC and RSA-512
    # Connect to the IoT device using its unique ID and perform the requested action
    # Use ECC for authentication and RSA-512 for encryption/decryption
    print(f"Controlling IoT Device {device_id}: {action}")


# Example usage
def main():
    message = "Hello World"

    # Encryption and Decryption
    encrypted_data, signature = encrypt(message)
    print("Encrypted Data:", encrypted_data)
    print("Signature:", signature)

    decrypted_message = decrypt(encrypted_data, signature)
    print("Decrypted Message:", decrypted_message)

    # Cryptocurrency Transaction
    transaction_success = send_cryptocurrency("recipientAddress", 10.0)
    if transaction_success:
        print("Cryptocurrency transaction successful!")

    # IoT Integration
    control_iot_device("deviceID123", "turnOn")


if __name__ == "__main__":
    main()

import hashlib
from cryptography.hazmat.primitives.asymmetric import ec, rsa
from cryptography.hazmat.primitives import serialization, hashes
from cryptography.hazmat.primitives.asymmetric import padding

# Encryption and Decryption
def encrypt(data):
    # Generate ECC private key
    private_key = ec.generate_private_key(ec.SECP256R1())

    # Generate RSA-512 public key
    rsa_private_key = rsa.generate_private_key(
        public_exponent=65537,
        key_size=512
    )
    rsa_public_key = rsa_private_key.public_key()

    # Encrypt data using RSA-512 public key
    encrypted_data = rsa_public_key.encrypt(
        data.encode(),
        padding.OAEP(
            mgf=padding.MGF1(algorithm=hashes.SHA256()),
            algorithm=hashes.SHA256(),
            label=None
        )
    )

    # Sign the encrypted data using ECC private key
    signature = private_key.sign(
        encrypted_data,
        ec.ECDSA(hashes.SHA256())
    )

    return encrypted_data, signature


def decrypt(encrypted_data, signature):
    # Load ECC private key
    private_key = ec.generate_private_key(ec.SECP256R1())

    # Load RSA-512 private key
    with open('private_key.pem', 'rb') as key_file:
        rsa_private_key = serialization.load_pem_private_key(
            key_file.read(),
            password=None
        )

    # Verify the signature using ECC public key
    public_key = private_key.public_key()
    public_key.verify(
        signature,
        encrypted_data,
        ec.ECDSA(hashes.SHA256())
    )

    # Decrypt the data using RSA-512 private key
    decrypted_data = rsa_private_key.decrypt(
        encrypted_data,
        padding.OAEP(
            mgf=padding.MGF1(algorithm=hashes.SHA256()),
            algorithm=hashes.SHA256(),
            label=None
        )
    )

    return decrypted_data.decode()


# Example usage
def main():
    message = "Hello World"

    # Encryption and Decryption
    encrypted_data, signature = encrypt(message)
    print("Encrypted Data:", encrypted_data)
    print("Signature:", signature)

    decrypted_message = decrypt(encrypted_data, signature)
    print("Decrypted Message:", decrypted_message)


if __name__ == "__main__":
    main()

import hashlib

# Encryption and Decryption
def encrypt(data):
    # Implement a stronger encryption algorithm, such as AES
    encrypted_data = hashlib.sha256(data.encode()).hexdigest()
    return encrypted_data

def decrypt(encrypted_data):
    # Implement the corresponding decryption algorithm for AES
    decrypted_data = encrypted_data  # Placeholder decryption
    return decrypted_data

# Cryptocurrency Transaction
def send_cryptocurrency(recipient, amount):
    # Implement the actual cryptocurrency transaction logic using a blockchain API
    # Connect to the blockchain network, verify recipient address, and initiate the transaction
    transaction_successful = True  # Placeholder transaction success
    return transaction_successful

# IoT Integration
def control_iot_device(device_id, action):
    # Implement IoT device control logic
    # Connect to the IoT device using its unique ID and perform the requested action
    print(f"Controlling IoT Device {device_id}: {action}")

# Example usage
def main():
    message = "Hello World"

    # Encryption and Decryption
    encrypted_message = encrypt(message)
    print("Encrypted Message:", encrypted_message)

    decrypted_message = decrypt(encrypted_message)
    print("Decrypted Message:", decrypted_message)

    # Cryptocurrency Transaction
    transaction_success = send_cryptocurrency("recipientAddress", 10.0)
    if transaction_success:
        print("Cryptocurrency transaction successful!")

    # IoT Integration
    control_iot_device("deviceID123", "turnOn")

if __name__ == "__main__":
    main()