github.com/klaytn/klaytn@v1.12.1/crypto/secp256k1/libsecp256k1/src/scalar_4x64.h (about)

     1  /**********************************************************************
     2   * Copyright (c) 2014 Pieter Wuille                                   *
     3   * Distributed under the MIT software license, see the accompanying   *
     4   * file COPYING or http://www.opensource.org/licenses/mit-license.php.*
     5   **********************************************************************/
     6  
     7  #ifndef _SECP256K1_SCALAR_REPR_
     8  #define _SECP256K1_SCALAR_REPR_
     9  
    10  #include <stdint.h>
    11  
    12  /** A scalar modulo the group order of the secp256k1 curve. */
    13  typedef struct {
    14      uint64_t d[4];
    15  } secp256k1_scalar;
    16  
    17  #define SECP256K1_SCALAR_CONST(d7, d6, d5, d4, d3, d2, d1, d0) {{((uint64_t)(d1)) << 32 | (d0), ((uint64_t)(d3)) << 32 | (d2), ((uint64_t)(d5)) << 32 | (d4), ((uint64_t)(d7)) << 32 | (d6)}}
    18  
    19  #endif