Low transmission overhead for polar coding physical-layer encryption

Low transmission overhead for polar coding physical-layer encryption
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极性编码物理层加密的低传输开销

DOI:
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发表时间:
2019-03
影响因子:
4.1
通讯作者:
Zhang Chenyu
Zhang Chenyu
中科院分区:
计算机科学3区
文献类型:
--
作者:
Jin Hongxu;Liu Rongke;Zhang Chenyu

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针对物理层安全问题,在窃听信道模型下提出了一种新的极化编码加密方案。为了减少共享秘密信息的传输开销,提高对攻击者的安全性能,我们采用了以下两种加密技术:第一,输出比特的随机化不依赖于传统的随机比特通道,而是直接通过随机比特序列翻转。其次,为了采用高级加密标准(AES),我们利用秘密种子来扩展AES密码系统的初始密钥,表现出良好的雪崩性能。结果分析表明,该方案具有较强的抵抗传统攻击的能力。
In this paper, for physical-layer security (PLS), a novel scheme of polar coding encryption is introduced in the wiretap channel (WTC) model. To decrease transmission overhead of the shared secret information and enhance the security performance against an attacker, we have employed the two following encryption technologies: Firstly, randomization of output bits is not dependent on the traditional randomized bit-channels but they are directly flipped through the random bit sequence. Secondly, for employing Advanced Encryption Standard (AES), we utilize the secret seed to extend an initial secret key of AES cryptosystem, which it appears a good avalanche performance. Result analyses demonstrate that the proposed scheme is strongly resistant against conventional attacks.
双向窃听通道的安全极性编码
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