Quantum Blockchain: What Would Actually Change
What a quantum blockchain would change: threats to current signatures, quantum-resistant cryptography, QKD in blockchains and proposed designs.
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Elliptic Curve Cryptography Against Quantum Attack
Why Shor’s algorithm breaks elliptic curve cryptography, how many qubits that would take and which post-quantum schemes replace ECC.
Quantum Blind Signatures: Signing Without Seeing
Quantum blind signatures let a signer sign a message without seeing its content. Protocols, anonymity properties and uses such as e-cash.
Quantum Group Signatures and Anonymity
Quantum group signatures let a member sign for a group anonymously while a manager can trace abuse. How they work and their security.
Quantum Information Splitting Between Parties
Quantum information splitting distributes a quantum state among parties so that they must cooperate to recover it. Protocols and uses.
Quantum Steganography: Hiding a Message in Noise
Quantum steganography hides a message inside what looks like ordinary channel noise. Techniques, advantages, challenges and applications.
Quantum Watermarking: Marking Quantum Data
Quantum watermarking embeds hidden marks in quantum data such as quantum images. Proposed techniques, their robustness and applications.
Quantum Verifiable Secret Sharing, Explained
Verifiable quantum secret sharing lets participants check that their shares are consistent. Threshold schemes, security and implementations.
Quantum Blinding: Hiding a Computation From a Server
Blind quantum computing lets a client run a computation on a quantum server without revealing inputs or the algorithm. How the protocol works.
Quantum Public-Key Infrastructure (QPKI) Explained
What a public-key infrastructure could look like in the quantum era: post-quantum certificates, QKD links and the challenges of migration.
Quantum Authentication: Proving Identity With Qubits
Quantum authentication uses quantum states to verify identity or message integrity. Protocols, how they compare with classical ones and uses.
Quantum Random Number Generators (QRNG) in Devices
How quantum random number generator devices work, photonic and semiconductor designs, their entropy sources and uses in cryptography.