Definition ∞ A quantum signed message refers to a digital signature scheme designed to be secure against attacks from quantum computers. Traditional digital signatures could theoretically be broken by sufficiently powerful quantum algorithms. Quantum signed messages utilize post-quantum cryptographic techniques to create verifiable assurances of message authenticity. This ensures the long-term security of digital communications.
Context ∞ The development of quantum signed messages is a crucial area of research as the threat of quantum computing becomes more tangible. News reports often cover progress in post-quantum cryptography standards and their potential integration into future blockchain protocols. The transition to quantum-resistant signature schemes is a significant security challenge for the digital asset space.
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