Quantum resistant cryptography for blockchain security

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The arrival of quantum computing is used for implementation of l threat for security of blockchain which have most of its reliance at classical cryptography. Quantum computers may significantly break encryption algorithms that are recently used in blockchain technology and are also playing their role to compromise strength and security of blockchain technology. For addressing this threat, quantum resistant cryptography is under research so that it may provide a solution for securing blockchain from quantum attacks.

Quantum computing

Quantum computing is field of computing which use principles of quantum mechanics for performing calculations in a more faster way than classical computers. Quantum computers may process diverse amounts of data in a simultaneous way so it is making it ideal for carrying out different tasks such as factoring large numbers and search out of databases.

Threat for blockchain security

Blockchain technology have its reliance at public key cryptography that most commonly used complex mathematical algorithms for securing transactions and for taking over the control of network.But these algorithms are more susceptible for quantum attacks. Quantum computers may use Shor's algorithm for factorization of large numbers so in this way it can break RSA and elliptic curve cryptography that is still in use in blockchain.

Quantum resistant cryptography

Quantum resistant cryptography is defined as cryptographic algorithms which are resistant for attacks by both classical and quantum computers. These algorithms are designed for remaining safe against quantum attacks which may ensure long term security of blockchain technology.

Types of quantum resistant cryptography

Lattice based cryptography

Lattice based cryptography use mathematical structures termed as lattices for the creation of safest encryption algorithms.

Code based cryptography

Code based cryptography is based on using error correcting codes for the creation of safest encryption algorithms.

Hash based signatures

Hash based signatures is another type which is focused on the usage of cryptographic hash functions for creation of safest digital signatures.

Multivariate cryptography

This is another type which most commonly used complex mathematical equations for creating safe encryption algorithms.

mplementation of quantum resistant cryptography in blockchain

Implementation of quantum resistant cryptography in blockchain needs some important changes in architecture of blockchain network and in other protocols.Generation of quantum resistant keys are important for making sure a smooth interaction and communication.Quantum resistant algorithms also have a diverse usage in encryption of transactions and information as well as digital signatures also plays their role in secure authentication.

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Challenges

Implementation of quantum resistant cryptography in blockchain is accompanied by different challenges which are under;

Performance

Quantum resistant algorithms are more computationally intensive than classic algorithms so this is first challange.

Key management

Management of quantum resistant keys is critical than classical management of key.

Interoperability

Giving surety of interoperability among various quantum resistant algorithms and systems.

Conclusion

Quantum-resistant cryptography is most significant for safety of blockchain technology against quantum attacks.But implementation of quantum resistant cryptography increase challenges and limitations so it is important for giving surety of security and integrity of blockchain for long time.Quantum computing is continuing to evolve so this is important to give priority to quantum resistant cryptography in growth of blockchain.

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