src/scalar_4x64.h

   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_H
   8 #define SECP256K1_SCALAR_REPR_H
   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 /* SECP256K1_SCALAR_REPR_H */