osfmk/corecrypto/cchmac/src/cchmac_final.c

   1 /*
   2  *  cchmac_final.c
   3  *  corecrypto
   4  *
   5  *  Created on 12/07/2010
   6  *
   7  *  Copyright (c) 2010,2011,2015 Apple Inc. All rights reserved.
   8  *
   9  */
  10
  11 #include <corecrypto/cchmac.h>
  12 #include <corecrypto/ccn.h>
  13 #include <corecrypto/cc_priv.h>
  14
  15 void cchmac_final(const struct ccdigest_info *di, cchmac_ctx_t hc,
  16                   unsigned char *mac) {
  17     ccdigest_final(di, cchmac_digest_ctx(di, hc), cchmac_data(di, hc));
  18     /* typecast: output size will alwys fit in an unsigned int */
  19     cchmac_num(di, hc) = (unsigned int)di->output_size;
  20     cchmac_nbits(di, hc) = di->block_size * 8;
  21     ccdigest_copy_state(di, cchmac_istate32(di, hc), cchmac_ostate32(di, hc));
  22     ccdigest_final(di, cchmac_digest_ctx(di, hc), mac);
  23 }