Use endomorphism in precomputations #20
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sipa
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d7fd4d0 Use endomorphism in precomputations (Peter Dettman)
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Minor bugfix. Wrong length due to NUL character.
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The secp256k1 endomorphism is very efficient (a single field multiplication), so when using the endomorphism in a scalar multiplication of point P, the lambda-P precomputation table can be generated much more quickly by simply applying the endomorphism to the P precomputation table (instead of precomputing from lambda-P).