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Article | REF: H5214 V1

Quantum distribution of cryptographic keys DQC

Author: Patrick René GUILLEMIN

Publication date: April 10, 2015 | Lire en français

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    7. Glossary – Definitions

    side channel attack

    Attack that does not concern the theoretical security method. It seeks out and exploits weaknesses in the practical means of implementation: human procedure, external behavior (computing time) of software or hardware (electromagnetic radiation, noise).

    Vernam cipher; Vernam cipher/one-time pad

    Symmetrical encryption based on the logical function XOR (exclusive OR) using unique (ephemeral) keys made of random bits that are the same size as the messages. This encryption has been shown to be tamper-proof (ITS), but difficult to implement due to the impossibility of truly secretly exchanging the encryption keys used (or disposable masks) between sender and receiver.

    confidentilité persitante; forward secrecy

    Term used in the QSC white paper, cryptographic...

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