From ac3378ba084e1fbf25c11581c224009a3cf75062 Mon Sep 17 00:00:00 2001 From: Wei-Ning Huang Date: Thu, 18 Apr 2019 14:15:11 +0800 Subject: crypto: use go-ethereum secp256k1 package to avoid symbol conflict (#374) --- crypto/secp256k1/libsecp256k1/src/eckey_impl.h | 99 -------------------------- 1 file changed, 99 deletions(-) delete mode 100644 crypto/secp256k1/libsecp256k1/src/eckey_impl.h (limited to 'crypto/secp256k1/libsecp256k1/src/eckey_impl.h') diff --git a/crypto/secp256k1/libsecp256k1/src/eckey_impl.h b/crypto/secp256k1/libsecp256k1/src/eckey_impl.h deleted file mode 100644 index ce38071ac..000000000 --- a/crypto/secp256k1/libsecp256k1/src/eckey_impl.h +++ /dev/null @@ -1,99 +0,0 @@ -/********************************************************************** - * Copyright (c) 2013, 2014 Pieter Wuille * - * Distributed under the MIT software license, see the accompanying * - * file COPYING or http://www.opensource.org/licenses/mit-license.php.* - **********************************************************************/ - -#ifndef _SECP256K1_ECKEY_IMPL_H_ -#define _SECP256K1_ECKEY_IMPL_H_ - -#include "eckey.h" - -#include "scalar.h" -#include "field.h" -#include "group.h" -#include "ecmult_gen.h" - -static int secp256k1_eckey_pubkey_parse(secp256k1_ge *elem, const unsigned char *pub, size_t size) { - if (size == 33 && (pub[0] == 0x02 || pub[0] == 0x03)) { - secp256k1_fe x; - return secp256k1_fe_set_b32(&x, pub+1) && secp256k1_ge_set_xo_var(elem, &x, pub[0] == 0x03); - } else if (size == 65 && (pub[0] == 0x04 || pub[0] == 0x06 || pub[0] == 0x07)) { - secp256k1_fe x, y; - if (!secp256k1_fe_set_b32(&x, pub+1) || !secp256k1_fe_set_b32(&y, pub+33)) { - return 0; - } - secp256k1_ge_set_xy(elem, &x, &y); - if ((pub[0] == 0x06 || pub[0] == 0x07) && secp256k1_fe_is_odd(&y) != (pub[0] == 0x07)) { - return 0; - } - return secp256k1_ge_is_valid_var(elem); - } else { - return 0; - } -} - -static int secp256k1_eckey_pubkey_serialize(secp256k1_ge *elem, unsigned char *pub, size_t *size, int compressed) { - if (secp256k1_ge_is_infinity(elem)) { - return 0; - } - secp256k1_fe_normalize_var(&elem->x); - secp256k1_fe_normalize_var(&elem->y); - secp256k1_fe_get_b32(&pub[1], &elem->x); - if (compressed) { - *size = 33; - pub[0] = 0x02 | (secp256k1_fe_is_odd(&elem->y) ? 0x01 : 0x00); - } else { - *size = 65; - pub[0] = 0x04; - secp256k1_fe_get_b32(&pub[33], &elem->y); - } - return 1; -} - -static int secp256k1_eckey_privkey_tweak_add(secp256k1_scalar *key, const secp256k1_scalar *tweak) { - secp256k1_scalar_add(key, key, tweak); - if (secp256k1_scalar_is_zero(key)) { - return 0; - } - return 1; -} - -static int secp256k1_eckey_pubkey_tweak_add(const secp256k1_ecmult_context *ctx, secp256k1_ge *key, const secp256k1_scalar *tweak) { - secp256k1_gej pt; - secp256k1_scalar one; - secp256k1_gej_set_ge(&pt, key); - secp256k1_scalar_set_int(&one, 1); - secp256k1_ecmult(ctx, &pt, &pt, &one, tweak); - - if (secp256k1_gej_is_infinity(&pt)) { - return 0; - } - secp256k1_ge_set_gej(key, &pt); - return 1; -} - -static int secp256k1_eckey_privkey_tweak_mul(secp256k1_scalar *key, const secp256k1_scalar *tweak) { - if (secp256k1_scalar_is_zero(tweak)) { - return 0; - } - - secp256k1_scalar_mul(key, key, tweak); - return 1; -} - -static int secp256k1_eckey_pubkey_tweak_mul(const secp256k1_ecmult_context *ctx, secp256k1_ge *key, const secp256k1_scalar *tweak) { - secp256k1_scalar zero; - secp256k1_gej pt; - if (secp256k1_scalar_is_zero(tweak)) { - return 0; - } - - secp256k1_scalar_set_int(&zero, 0); - secp256k1_gej_set_ge(&pt, key); - secp256k1_ecmult(ctx, &pt, &pt, tweak, &zero); - secp256k1_ge_set_gej(key, &pt); - return 1; -} - -#endif -- cgit