Quantum Oblivious Transfer
Quantum Oblivious Transfer (QOT) is a powerful cryptographic protocol rooted in quantum mechanics. It allows a sender (let’s say Alice) to send information to a receiver (Bob) in a special….
Category: Quantum Computing
Quantum Coin Flipping
Quantum Coin Flipping (QCF) is a cryptographic protocol that allows two parties—who don’t trust each other—to agree on a random binary outcome (heads or tails, or 0 or 1), using….
Quantum Random Number Generation
Quantum Random Number Generation (QRNG) is the process of generating random numbers using the unpredictable nature of quantum mechanics. Unlike classical computers, which use algorithms to create pseudo-random numbers, QRNG….
Post-Quantum Cryptography
Post-Quantum Cryptography (PQC) refers to cryptographic algorithms that are designed to be secure against attacks from quantum computers. While today’s cryptographic systems like RSA and ECC are safe against classical….
Device-Independent QKD
Device-Independent Quantum Key Distribution (DI-QKD) is an advanced form of quantum key distribution that provides the highest level of security, even if the devices used in the protocol are untrusted….
E91 Protocol
The E91 Protocol is a Quantum Key Distribution (QKD) method proposed by physicist Artur Ekert in 1991. It was a significant development in quantum cryptography because it uses quantum entanglement….
BB84 Protocol
The BB84 Protocol, proposed by Charles Bennett and Gilles Brassard in 1984, is the first and most widely known Quantum Key Distribution (QKD) method. It allows two parties—commonly called Alice….
Quantum Key Distribution (QKD)
Quantum Key Distribution (QKD) is a method of securely sharing secret keys between two parties using the principles of quantum mechanics. It allows two people—commonly called Alice and Bob—to communicate….
Decoherence-Free Subspaces
In quantum computing, decoherence is the process by which a quantum system loses its quantum properties—like superposition or entanglement—because it interacts with its environment. This is one of the biggest….
Error Correction in NISQ Devices
NISQ stands for Noisy Intermediate-Scale Quantum. These are the quantum computers we have today: In this context, error correction means finding ways to reduce, avoid, or compensate for errors in….