Abstract
A digital signature algorithm (DSA) based on elliptic curve and chaotic mappings is proposed to strengthen the security of an elliptic curve digital signature algorithm (ECDSA). To construct this algorithm, a one-way hash function (OWHF) based on two-dimensional (2D) hyperchaotic mappings and an improved elliptic curve public-key cryptography (IECPKC) are proposed, and two key exchange algorithms are introduced. Security analysis shows that this has better capability of resisting per-message secrets attack, repeated use of per-message secrets attack, and duplicate-signature key selection attack than an ECDSA. The proposed scheme is well suited for practical implementation.
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Fei, P., Shui-Sheng, Q. & Min, L. A Secure Digital Signature Algorithm Based on Elliptic Curve and Chaotic Mappings. Circuits Syst Signal Process 24, 585–597 (2005). https://doi.org/10.1007/s00034-005-2409-4
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DOI: https://doi.org/10.1007/s00034-005-2409-4