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so #bitcoiner this is a short thread about #secp256k1 (just for my own sake. Warning!!! it might even contains some mistake, still rumping up)
#Bitcoin uses secp256k1 for signing/verifying transaction via ECDSA
#Bitcoin uses secp256k1 for signing/verifying transaction via ECDSA
secp256k1 was originally specified in STANDARDS FOR EFFICIENT CRYPTOGRAPHY by Certicom Research
It is a Koblitz curve (but not a Koblitz binary anomalous curve) defined by the short Weistrass equation y^2=x^3+7.
It is a Koblitz curve (but not a Koblitz binary anomalous curve) defined by the short Weistrass equation y^2=x^3+7.
There is an endomorphism (GLV endomorphism) that can be used to speed up multiplications (different than the Frobenius endomorphism in the binary case) that is turned off by default.
