Function copyRawConfidential

src/simplicity/elements/env.c:31–41

Initialize a 'confidential' asset or 'confidential' nonce from an unsigned char array from a 'rawElementsTransaction'. * * Precondition: NULL != conf; * unsigned char rawConf[33] or rawConf == NULL; */

 *               unsigned char rawConf[33] or rawConf == NULL;
 */
static void copyRawConfidential(confidential* conf, const unsigned char* rawConf) {
  if (rawConf) {
    *conf = (confidential){ .prefix = 0x01 == rawConf[0] ? EXPLICIT
                                    : 0x01 == (0x01 & rawConf[0]) ? ODD_Y
                                    : EVEN_Y
                          };
    sha256_toMidstate(conf->data.s, &rawConf[1]);
  } else {
    *conf = (confidential){0};
  }
}

/* Initialize a 'confAmount' from an unsigned char array from a 'rawElementsTransaction'.
 *