Welcome to the resource topic for 2025/660
Title:
Eccfrog512ck2: An Enhanced 512-bit Weierstrass Elliptic Curve
Authors: Víctor Duarte Melo, William J Buchanan
Abstract:Whilst many key exchange and digital signature methods use the NIST P256 (secp256r1) and secp256k1 curves, there is often a demand for increased security. With these curves, we have a 128-bit security. These security levels can be increased to 256-bit security with NIST P-521 Curve 448 and Brainpool-P512. This paper outlines a new curve - Eccfrog512ck2 - and which provides 256-bit security and enhanced performance over NIST P-521. Along with this, it has side-channel resistance and is designed to avoid weaknesses such as related to the MOV attack. It shows that Eccfrog512ck2 can have a 61.5% speed-up on scalar multiplication and a 33.3% speed-up on point generation over the NIST P-521 curve.
ePrint: https://eprint.iacr.org/2025/660
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