Quantum digital signatures are cryptographic tools that use the principles of quantum mechanics to provide authentication and integrity for digital messages. They ensure that a message has been sent by a specific sender and that it has not been altered in transit, leveraging quantum properties like entanglement and superposition to achieve this level of security. This method is considered essential for quantum-safe encryption, as it protects against potential threats posed by quantum computing to traditional digital signatures.
congrats on reading the definition of quantum digital signatures. now let's actually learn it.