Reabsed the p521 curve support on top of master#229

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Umair-Anwar:p521

Commits on Aug 22, 2024

initial support for P-521

DoDoENT
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Umair Anwar
committed
avoid infinite loop in optimised mmod for secp521r1

DoDoENT
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Umair Anwar
committed
added tests for secp521r1

DoDoENT
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Umair Anwar
committed
added 32-bit implementation of optimised secp521r1 mmod

DoDoENT
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Umair Anwar
committed
fixed mmod function for secp521r1, thanks to https://github.com/kmackay/micro-ecc/issues/99#issuecomment-321992718

DoDoENT
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Umair Anwar
committed
raise a compile error when someone attempts to enable secp521r1 on 8-bit computer

DoDoENT
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Umair Anwar
committed
fix printing of secrets and keys in P-521 mode

DoDoENT
authored and
Umair Anwar
committed