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November 28, 2014, 08:00:45 AM Last edit: November 28, 2014, 08:48:09 AM by amaclin |
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In few words signing in ECDSA is (some pseudocode)
int256 r, s, digest, privkey, k; k = rand ( ); [r,s] = sign ( privkey, digest, k ); // signing
The question: is it possible to get 'k' from other values if i know them and do not know 'k' (formula, not bruteforcing)? Something like
k = get_k_value ( privkey, digest, r, s );
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