Object-oriented programming (OOP) is a programming paradigm that uses objects, which are instances of classes, to represent data and behavior. OOP allows for encapsulation, inheritance, and polymorphism, which can make code more modular and reusable. Popular object-oriented programming languages include Java, C++, and Python. Contact us Quantum cryptography is a subfield of cryptography that uses principles of quantum mechanics to secure communication. Quantum cryptography can provide provably secure communication channels, even against an eavesdropper with unlimited computational power. Quantum key distribution is one of the most well-known applications of quantum cryptography. Popular quantum cryptography platforms include ID Quantique, Toshiba, and QuintessenceLabs.