scalar_4x64.h 768 B

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  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. #ifndef _SECP256K1_SCALAR_REPR_
  7. #define _SECP256K1_SCALAR_REPR_
  8. #include <stdint.h>
  9. /** A scalar modulo the group order of the secp256k1 curve. */
  10. typedef struct {
  11. uint64_t d[4];
  12. } secp256k1_scalar_t;
  13. #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)}}
  14. #endif