pkcs_1_os2ip.c 668 B

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  1. /* LibTomCrypt, modular cryptographic library -- Tom St Denis
  2. *
  3. * LibTomCrypt is a library that provides various cryptographic
  4. * algorithms in a highly modular and flexible manner.
  5. *
  6. * The library is free for all purposes without any express
  7. * guarantee it works.
  8. *
  9. * Tom St Denis, [email protected], http://libtomcrypt.org
  10. */
  11. #include "mycrypt.h"
  12. /* Octet to Integer OS2IP -- Tom St Denis */
  13. #ifdef PKCS_1
  14. int pkcs_1_os2ip(mp_int *n, unsigned char *in, unsigned long inlen)
  15. {
  16. int err;
  17. /* read it */
  18. if ((err = mp_read_unsigned_bin(n, in, inlen)) != MP_OKAY) {
  19. return mpi_to_ltc_error(err);
  20. }
  21. return CRYPT_OK;
  22. }
  23. #endif /* PKCS_1 */