A new quantum communication method uses the temporal Talbot effect to simplify high-dimensional quantum key…
Browsing: Cryptography
Cryptography is the practice and study of techniques for secure communication in the presence of third parties called adversaries. Its main goal is to ensure the confidentiality, integrity, authenticity, and non-repudiation of information and communications by converting them into a form that is unreadable to unauthorized individuals or systems. Cryptography uses algorithms and cryptographic keys to encrypt (encode) and decrypt (decode) data. Historically, it involved simple ciphers used in warfare and diplomacy; however, it has evolved significantly with the advent of digital computers and the internet. Modern cryptography encompasses a variety of mechanisms including symmetric-key encryption, public-key (asymmetric) encryption, cryptographic hash functions, and digital signatures, each playing vital roles in securing electronic communications, protecting data privacy, and ensuring the security of online transactions.
Researchers use cryptography to gain insights into the mechanisms behind quantum speed-ups. Quantum computing is…
Researchers have achieved a major quantum computing breakthrough: certified randomness, a process where a quantum…
MIT engineers developed a tag that can reveal with near-perfect accuracy whether an item is…
Quantum random number generation based on a perovskite light emitting diode. Digital information exchange can…
Researchers have developed SCARF, a highly efficient cipher designed to counter cache side-channel attacks by…
Scientists have created an unconditionally secure quantum-digital payment system using single photons to prevent fraud…
P Versus NP Usually, you can verify a solution to a problem. Whether it’s using…
A “beyond-quantum” equivalence principle for superposition and entanglement. Foundational Questions Institute (FQXi) funded study found…
FAMHE uses encrypted, federated analytics to let hospitals collaborate on biomedical research without sharing raw…
An international team of computer scientists has set a new record for integer factorization, one…
Most security applications, for instance, access to buildings or digital signatures, use cryptographic keys that…
Kazan University physicists created a refined simulation of a joint reception area of meteor radio…