What is the difference between quantum cryptography and post-quantum cryptography?

What is the difference between quantum cryptography and post-quantum cryptography?

While quantum cryptography describes using quantum phenomena at the core of a security strategy, post-quantum cryptography (sometimes referred to as quantum-proof, quantum-safe or quantum-resistant) refers to cryptographic algorithms (usually public-key algorithms) that are thought to be secure against an attack by a …

Why do we need post-quantum cryptography?

The goal of post-quantum cryptography (also called quantum-resistant cryptography) is to develop cryptographic systems that are secure against both quantum and classical computers, and can interoperate with existing communications protocols and networks.

What is quantum cryptography?

Quantum cryptography is a technology that uses quantum physics to secure the distribution of symmetric encryption keys. A more accurate name for it is quantum key distribution (QKD). It works by sending photons, which are “quantum particles” of light, across an optical link.

What is the basis for encryption with quantum cryptology?

Cryptography is the process of encrypting data, or converting plain text into scrambled text so that only someone who has the right “key” can read it. Quantum cryptography, by extension, simply uses the principles of quantum mechanics to encrypt data and transmit it in a way that cannot be hacked.

Which is the best library for post quantum cryptography?

The library uses Frodo’s “recommended parameters”. The SIDH v2.0 library is a supersingular isogeny-based cryptography library that implements a new suite of algorithms for a post-quantum, ephemeral Diffie-Hellman key exchange scheme. The Picnic and Fish signature schemes are digital signature schemes secure against attacks by quantum computers.

Can a quantum computer break a cryptographic algorithm?

Even though current, publicly known, experimental quantum computers lack processing power to break any real cryptographic algorithm, many cryptographers are designing new algorithms to prepare for a time when quantum computing becomes a threat.

When to use OTP or post quantum cryptography?

The OTP can be used only once. The Post Quantum Cryptography (PWC) can be used for standard commercial applications where the cost of the system and mobility ranks supreme. It can use the same hardware infrastructure use by the current networks.

Which is digital signature scheme secure against quantum attacks?

The Picnic and Fish signature schemes are digital signature schemes secure against attacks by quantum computers. This is a reference implementation of these schemes, associated with the paper Post-Quantum Zero-Knowledge and Signatures from Symmetric-Key Primitives.