Study of a new physical layer encryption concept

Ahmad, Arslan; Biri, Andreas; Afifi, Hossam

doi:10.1109/mahss.2008.4660138

Cited by 11 publications

(23 citation statements)

References 15 publications

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“…In [3], an efficient physical layer encryption scheme is proposed by which the encryption is implemented after the encoding process. In this way, the encoding process seems to be merged with the encryption process, and hence, recovering message becomes more difficult for an active attacker.…”

Section: Related Workmentioning

confidence: 99%

“…In this section, we discuss the advantages of the proposed scheme compared with the previously proposed physical layer encryption schemes [3][4][5][6][7][8][9][10][11][12][13][14] in terms of computational complexity, key size and security.…”

Section: Comparison With the Other Physical Layer Encryption Schemesmentioning

confidence: 99%

“…It is shown [9][10][11][12][13][14] that combining error correction and encryption leads to a reduction in complexity compared with physical layer encryption schemes in which cryptography and channel coding are separated functions [3][4][5][6][7][8].…”

Section: Comparison With the Other Physical Layer Encryption Schemesmentioning

confidence: 99%

“…(c) The security of the several physical layer encryption schemes [3][4][5][6][7][8][9][10] is based on the traditional cryptographic algorithms. In such schemes, several iterations of the round function are needed for transforming a plaintext block to a ciphertext block.…”

Section: Comparison With the Other Physical Layer Encryption Schemesmentioning

confidence: 99%

“…(iii) Security: The proposed scheme has the following advantages in terms of security compared with the other physical layer encryption schemes: (a) The security of several physical layer encryption schemes [3][4][5][6][7][8][9][10] is based on the traditional cryptographic algorithms or the physical effect of channel noise. Such schemes, depending on the traditional cryptographic schemes used in their structures, may not be secure against the attacks performed by quantum computers [26].…”

Section: Comparison With the Other Physical Layer Encryption Schemesmentioning

confidence: 99%

See 4 more Smart Citations

Physical layer encryption scheme using finite‐length polar codes

Hooshmand

Aref²,

Eghlidos³

2015

IET Communications

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In this study, by exploiting the properties of finite-length polar codes, the authors introduce a physical layer encryption scheme to make secure (from a computational security perspective) and efficient communication between a sender (Alice) and a legitimate receiver (Bob) against both active and passive attacks, simultaneously. To prevent active attacks, two techniques are considered: (i) a novel method is introduced to keep the generator matrix of polar code secret from an active attacker (Oscar); (ii) a proper joint polar encoding/encryption algorithm based on the hidden generator matrix is introduced. Two additional strategies are considered against passive attacks: (i) a new method is introduced to partition the bit-channels into good and bad bit-channels and then the scrambled information bits are transmitted over those bit-channels that are good for Bob but bad for a passive attacker (Eve); (ii) the secret key cryptography is implemented at the physical layer, such that Eve cannot decode the eavesdropped data without the knowledge of the secret key shared between the authorised parties. Besides, this study discusses efficiency analysis results consisting key size, error performance and computational complexity of the proposed scheme.

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Section: Related Workmentioning

confidence: 99%