Explanation:

True. Quantum Key Distribution (QKD) is fundamentally about two distant parties creating a shared, secret random number (known as a key). This key can then be used to encrypt and decrypt messages, ensuring the security of the communication. The security of QKD lies in the principle that any attempt to eavesdrop or intercept the key would be detected due to the fundamental nature of quantum mechanics.

True. The potential applications of QKD can extend to securing IoT devices. Given the vulnerability of IoT devices to hacking and other security threats, QKD can provide a way to ensure that sensitive information transmitted over networks remains secure.

False. While QKD uses principles of quantum mechanics, the statement that "there is not any loss of signals as they travel through optical fiber" is not accurate. Signal loss, or attenuation, in optical fibers is an inherent limitation and can impact the effective distance over which QKD can be implemented. The challenge in quantum communication is to manage and minimize such losses to ensure effective secure communication over long distances.

Thus, statements 1 and 2 are the correct options.