Encryption Scheme Based on Expanded Reed-Solomon Codes

06/03/2019

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by   Karan Khathuria, et al.

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We present a code-based public-key cryptosystem, in which we use Reed-Solomon codes over an extension field as secret codes and disguise it by considering its expanded code over the base field. Considering the expanded codes provide a safeguard against distinguisher attacks based on the Schur product. Moreover, without using cyclic or quasi-cyclic structure we obtain a key size reduction of nearly 60 Bernstein et al.