Cache-Side-Channel Quantification and Mitigation for Quantum Cryptography

Quantum cryptography allows one to transmit secret information securely, based on the laws of quantum physics. It consists of (1) the transmission of physical particles like photons and (2) the software-based processing of measurements during the transmission. Quantum key distribution (QKD), e.g., transmits material for establishing a shared crypto key in this way. The key material is encoded into the particles in a way that leakage can be detected and mitigated via so-called privacy amplification.