Intelligent Reflecting Surface Assisted Secret Key Generation Under Spatially Correlated Channels in Quasi-Static Environments

Vahid, Shahiri,; Behroozi, Hamid; Kuhestani, Ali

doi:10.48550/arxiv.2212.01563

Cited by 1 publication

(1 citation statement)

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“…The capacity of the encryption key was determined and addressed the parameters that affect the capacity [20]- [22]. However, efforts are directed toward reaping the advantages of randomness through the application of reconfigurable intelligent surfaces (RIS) [23]- [25]. The current efforts concentrate on reducing transmission losses and restricting the information leakage to the eavesdroppers in order to maximize link efficiency.…”

Section: Introductionmentioning

confidence: 99%

Wireless channel-based ciphering key generation: effect of aging and treatment

Almamori,

Adil Abbas

2024

IJECE

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Key generation for data cryptography is vital in wireless communications security. This key must be generated in a random way so that can not be regenerated by a third party other than the intended receiver. The random nature of the wireless channel is utilized to generate the encryption key. However, the randomness of wireless channels deteriorated over time due to channel aging which casing security threats, particularly for spatially correlated channels. In this paper, the effect of channel aging on the ciphering key generations is addressed. A proposed method to randomize the encryption key each coherence time is developed which decreases the correlation between keys generated at consecutive coherence times. When compared to the conventional method, the randomness improvement is significant at each time interval. The simulation results show that the proposed method improves the randomness of the encrypting keys.

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