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src/secp256k1/src/ecmult_const.h
/********************************************************************** | /*********************************************************************** | ||||
* Copyright (c) 2015 Andrew Poelstra * | * Copyright (c) 2015 Andrew Poelstra * | ||||
* Distributed under the MIT software license, see the accompanying * | * Distributed under the MIT software license, see the accompanying * | ||||
* file COPYING or http://www.opensource.org/licenses/mit-license.php.* | * file COPYING or https://www.opensource.org/licenses/mit-license.php.* | ||||
**********************************************************************/ | ***********************************************************************/ | ||||
#ifndef SECP256K1_ECMULT_CONST_H | #ifndef SECP256K1_ECMULT_CONST_H | ||||
#define SECP256K1_ECMULT_CONST_H | #define SECP256K1_ECMULT_CONST_H | ||||
#include "scalar.h" | #include "scalar.h" | ||||
#include "group.h" | #include "group.h" | ||||
/** | /** | ||||
* Multiply: R = q*A (in constant-time) | * Multiply: R = q*A (in constant-time) | ||||
* Here `bits` should be set to the maximum bitlength of the _absolute value_ of `q`, plus | * Here `bits` should be set to the maximum bitlength of the _absolute value_ of `q`, plus | ||||
* one because we internally sometimes add 2 to the number during the WNAF conversion. | * one because we internally sometimes add 2 to the number during the WNAF conversion. | ||||
*/ | */ | ||||
static void secp256k1_ecmult_const(secp256k1_gej *r, const secp256k1_ge *a, const secp256k1_scalar *q, int bits); | static void secp256k1_ecmult_const(secp256k1_gej *r, const secp256k1_ge *a, const secp256k1_scalar *q, int bits); | ||||
#endif /* SECP256K1_ECMULT_CONST_H */ | #endif /* SECP256K1_ECMULT_CONST_H */ |