Definition ∞ A Quantum-Safe Ledger is a distributed ledger technology system fortified with cryptographic algorithms designed to resist attacks from future quantum computers. This security enhancement addresses the potential threat that quantum computing poses to current cryptographic standards. It ensures the long-term integrity and confidentiality of transactions and data recorded on the ledger. This represents a forward-looking security posture.
Context ∞ The development of quantum-safe ledgers is a proactive measure within the blockchain community to prepare for a post-quantum cryptographic era. This transition is vital to prevent future compromise of digital asset security, as quantum computers could potentially break existing public-key cryptography. Research focuses on integrating new, quantum-resistant signature schemes and hash functions into blockchain protocols.