crypto/bf/bf_ecb.c

   1 /*
   2  * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   4  * Licensed under the Apache License 2.0 (the "License").  You may not use
   5  * this file except in compliance with the License.  You can obtain a copy
   6  * in the file LICENSE in the source distribution or at
   7  * https://www.openssl.org/source/license.html
   8  */
   9
  10 /*
  11  * BF low level APIs are deprecated for public use, but still ok for internal
  12  * use.
  13  */
  14 #include "internal/deprecated.h"
  15
  16 #include <openssl/blowfish.h>
  17 #include "bf_local.h"
  18 #include <openssl/opensslv.h>
  19
  20 /*
  21  * Blowfish as implemented from 'Blowfish: Springer-Verlag paper' (From
  22  * LECTURE NOTES IN COMPUTER SCIENCE 809, FAST SOFTWARE ENCRYPTION, CAMBRIDGE
  23  * SECURITY WORKSHOP, CAMBRIDGE, U.K., DECEMBER 9-11, 1993)
  24  */
  25
  26 const char *BF_options(void)
  27 {
  28     return "blowfish(ptr)";
  29 }
  30
  31 void BF_ecb_encrypt(const unsigned char *in, unsigned char *out,
  32                     const BF_KEY *key, int encrypt)
  33 {
  34     BF_LONG l, d[2];
  35
  36     n2l(in, l);
  37     d[0] = l;
  38     n2l(in, l);
  39     d[1] = l;
  40     if (encrypt)
  41         BF_encrypt(d, key);
  42     else
  43         BF_decrypt(d, key);
  44     l = d[0];
  45     l2n(l, out);
  46     l = d[1];
  47     l2n(l, out);
  48     l = d[0] = d[1] = 0;
  49 }