How to add multiple address to my bitcoin wallet
How to add multiple address to my bitcoin wallet
Is there any api (PHP, javascript, nodejs) to add multiple address to my bitcoin wallet.
https://ift.tt/2IKjfbZNonce usage in ECDSA signing algorithm
Nonce usage in ECDSA signing algorithm I'm trying to understand the signing function secp256k1_ecdsa_sig_sign(), and I'm curious about the nonce usage here. static int secp256k1_ecdsa_sig_sign(const secp256k1_ecmult_gen_context *ctx, secp256k1_scalar *sigr, secp256k1_scalar *sigs, const secp256k1_scalar *seckey, const secp256k1_scalar *message, const secp256k1_scalar *nonce, int *recid) { unsigned char b[32]; secp256k1_gej rp; secp256k1_ge r; secp256k1_scalar n; int overflow = 0; secp256k1_ecmult_gen(ctx, &rp, nonce); secp256k1_ge_set_gej(&r, &rp); secp256k1_fe_normalize(&r.x); secp256k1_fe_normalize(&r.y); secp256k1_fe_get_b32(b, &r.x); secp256k1_scalar_set_b32(sigr, b, &overflow); /* These two conditions should be checked before calling */ VERIFY_CHECK(!secp256k1_scalar_is_zero(sigr)); VERIFY_CHECK(overflow == 0); if (recid) { /* The overflow condition is cryptographically unreachable as hitting it requires f...
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