EntityQ2164207· pop 5· linked from 17 articlesRolling codeSign in to savechanging keyless entry code for extra securityConnectionsAudi A6Entitymulti-factor authenticationEntityradio frequencyEntityBusiness InsiderEntityeavesdroppingEntitypseudorandom number generatorEntityfrequency-hopping spread spectrumEntityHMACEntityreplay attackEntityDEF CONEntitycryptographically secure pseudo-random number generatorEntityrandom seedEntityremote keyless systemEntityHMAC-based One-time Password AlgorithmEntitysecurity levelEntityKeeLoqEntitygarage door openerEntityCategoriesAutomotive technologiesRadio electronics