Encyclopedia of Cybersecurity

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Quality of Service

Quality of Service (QoS) refers to a set of techniques and mechanisms used in computer networking to manage and prioritize network traffic in order to meet specific performance requirements. The primary goal of QoS is to ensure that critical applications and services receive sufficient network resources and bandwidth to operate effectively, while less important traffic […]

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Quantum Computing Threat

A quantum computing threat refers to the potential risks and security challenges posed by the development and proliferation of quantum computing technology. Quantum computing represents a paradigm shift in computing capabilities, leveraging the principles of quantum mechanics to perform computations that are exponentially faster than classical computers for certain types of problems. Key aspects of

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Quantum Cryptanalysis

Quantum cryptanalysis is a branch of quantum computing focused on developing algorithms and techniques to break cryptographic schemes and protocols based on classical cryptography using quantum computing principles. Classical cryptographic algorithms, such as RSA, ECC, and AES, rely on hard mathematical problems, such as factoring large integers or computing discrete logarithms, to provide security against

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Quantum Cryptography

Quantum Cryptography, also known as quantum key distribution (QKD), is a method of secure communication that utilizes principles of quantum mechanics to establish a secure cryptographic key between two parties. Unlike classical cryptographic methods, which rely on mathematical algorithms that may be vulnerable to quantum computing attacks, quantum cryptography leverages the fundamental properties of quantum

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Quantum Key Distribution

Quantum Key Distribution (QKD) is a cryptographic technique that uses the principles of quantum mechanics to establish secure communication channels between parties and exchange cryptographic keys. Unlike traditional cryptographic methods, which rely on mathematical algorithms and computational complexity for security, QKD leverages the fundamental properties of quantum physics to enable the secure distribution of encryption

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Quantum Resistant Algorithms

Quantum Resistant Algorithms, also known as Post-Quantum Cryptography (PQC) or Quantum-Safe Cryptography, refers to cryptographic algorithms and protocols designed to withstand attacks from quantum computers. Quantum computers have the potential to solve certain mathematical problems, such as integer factorization and discrete logarithms, much more efficiently than classical computers, which could render many existing cryptographic algorithms

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