Abstract
Stream ciphers are increasingly used for lightweight applications like RFID, Bluetooth, and Wi-Fi communications where the length of the plaintext is initially unknown. Generally, the stream ciphers are characterized by fast encryption and decryption speed. The LFSR-based stream cipher can generate pseudorandom binary strings with good cryptographic properties. Hardware implementation cost is also minimum for it. In this paper, we have discussed the architecture and properties of the LFSR. We have also discussed the properties of secured Boolean function as one of the important components of stream cipher. Here, we have implemented a generalized nonlinear combination of generator-based model comprising LFSR/NLFSR and Boolean function for designing a pRNG. The bitstream properties of pRNG are tabulated and compared with their best attainable parameters.
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Notes
- 1.
LF is represented as LFSR.
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Deb, S., Bhuyan, B., Gupta, N.C. (2018). Design and Analysis of LFSR-Based Stream Cipher. In: Mandal, J., Saha, G., Kandar, D., Maji, A. (eds) Proceedings of the International Conference on Computing and Communication Systems. Lecture Notes in Networks and Systems, vol 24. Springer, Singapore. https://doi.org/10.1007/978-981-10-6890-4_61
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DOI: https://doi.org/10.1007/978-981-10-6890-4_61
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