What is an unconditional security of a cipher?
Sunday, 04 August 2024
by Emmanuel Udofia
Unconditional security of a cipher refers to the theoretical assurance that a cryptographic system cannot be broken, regardless of the computational power or resources available to an adversary. This concept is pivotal in the field of cryptography, where the primary objective is to secure communication against unauthorized access and tampering. To comprehend unconditional security, it
What is the significance of the secret key rate (K) in QKD, and how is it bounded by the entropies shared between the reference system and the eavesdropper, and the reference system and Bob's system?
Saturday, 15 June 2024
by EITCA Academy
In the field of quantum cryptography, the secret key rate in Quantum Key Distribution (QKD) is a critical parameter that quantifies the efficiency and security of the key generation process. The secret key rate represents the rate at which secure cryptographic keys can be generated between two parties, typically referred to as Alice and Bob,