-/* crypto/evp/e_rc5.c */
-/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
- * All rights reserved.
+/*
+ * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
*
- * This package is an SSL implementation written
- * by Eric Young (eay@cryptsoft.com).
- * The implementation was written so as to conform with Netscapes SSL.
- *
- * This library is free for commercial and non-commercial use as long as
- * the following conditions are aheared to. The following conditions
- * apply to all code found in this distribution, be it the RC4, RSA,
- * lhash, DES, etc., code; not just the SSL code. The SSL documentation
- * included with this distribution is covered by the same copyright terms
- * except that the holder is Tim Hudson (tjh@cryptsoft.com).
- *
- * Copyright remains Eric Young's, and as such any Copyright notices in
- * the code are not to be removed.
- * If this package is used in a product, Eric Young should be given attribution
- * as the author of the parts of the library used.
- * This can be in the form of a textual message at program startup or
- * in documentation (online or textual) provided with the package.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * "This product includes cryptographic software written by
- * Eric Young (eay@cryptsoft.com)"
- * The word 'cryptographic' can be left out if the rouines from the library
- * being used are not cryptographic related :-).
- * 4. If you include any Windows specific code (or a derivative thereof) from
- * the apps directory (application code) you must include an acknowledgement:
- * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
- *
- * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * The licence and distribution terms for any publically available version or
- * derivative of this code cannot be changed. i.e. this code cannot simply be
- * copied and put under another distribution licence
- * [including the GNU Public Licence.]
+ * Licensed under the Apache License 2.0 (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
*/
-#ifndef NO_RC5
-
#include <stdio.h>
-#include "cryptlib.h"
-#include <openssl/evp.h>
-#include <openssl/objects.h>
-#include "evp_locl.h"
+#include "internal/cryptlib.h"
+
+#ifndef OPENSSL_NO_RC5
+
+# include <openssl/evp.h>
+# include "internal/evp_int.h"
+# include <openssl/objects.h>
+# include "evp_locl.h"
+# include <openssl/rc5.h>
static int r_32_12_16_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
- const unsigned char *iv,int enc);
+ const unsigned char *iv, int enc);
static int rc5_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr);
-IMPLEMENT_BLOCK_CIPHER(rc5_32_12_16, rc5.ks, RC5_32, rc5, NID_rc5,
- 8, EVP_RC5_32_12_16_KEY_SIZE, 8,
- EVP_CIPH_VARIABLE_LENGTH | EVP_CIPH_CTRL_INIT,
- r_32_12_16_init_key, NULL,
- NULL, NULL, rc5_ctrl)
+typedef struct {
+ int rounds; /* number of rounds */
+ RC5_32_KEY ks; /* key schedule */
+} EVP_RC5_KEY;
+# define data(ctx) EVP_C_DATA(EVP_RC5_KEY,ctx)
+IMPLEMENT_BLOCK_CIPHER(rc5_32_12_16, ks, RC5_32, EVP_RC5_KEY, NID_rc5,
+ 8, RC5_32_KEY_LENGTH, 8, 64,
+ EVP_CIPH_VARIABLE_LENGTH | EVP_CIPH_CTRL_INIT,
+ r_32_12_16_init_key, NULL, NULL, NULL, rc5_ctrl)
static int rc5_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
- {
- switch(type) {
+{
+ switch (type) {
+ case EVP_CTRL_INIT:
+ data(c)->rounds = RC5_12_ROUNDS;
+ return 1;
- case EVP_CTRL_INIT:
- c->c.rc5.rounds = RC5_12_ROUNDS;
- return 1;
+ case EVP_CTRL_GET_RC5_ROUNDS:
+ *(int *)ptr = data(c)->rounds;
+ return 1;
- case EVP_CTRL_GET_RC5_ROUNDS:
- *(int *)ptr = c->c.rc5.rounds;
- return 1;
-
-
- case EVP_CTRL_SET_RC5_ROUNDS:
- switch(arg) {
- case RC5_8_ROUNDS:
- case RC5_12_ROUNDS:
- case RC5_16_ROUNDS:
- c->c.rc5.rounds = arg;
- return 1;
+ case EVP_CTRL_SET_RC5_ROUNDS:
+ switch (arg) {
+ case RC5_8_ROUNDS:
+ case RC5_12_ROUNDS:
+ case RC5_16_ROUNDS:
+ data(c)->rounds = arg;
+ return 1;
- default:
- EVPerr(EVP_F_RC5_CTRL, EVP_R_UNSUPORTED_NUMBER_OF_ROUNDS);
- return 0;
- }
+ default:
+ EVPerr(EVP_F_RC5_CTRL, EVP_R_UNSUPPORTED_NUMBER_OF_ROUNDS);
+ return 0;
+ }
- default:
- return -1;
- }
- }
+ default:
+ return -1;
+ }
+}
static int r_32_12_16_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
- const unsigned char *iv, int enc)
- {
- RC5_32_set_key(&(ctx->c.rc5.ks),EVP_CIPHER_CTX_key_length(ctx),
- key,ctx->c.rc5.rounds);
- return 1;
- }
+ const unsigned char *iv, int enc)
+{
+ if (EVP_CIPHER_CTX_key_length(ctx) > 255) {
+ EVPerr(EVP_F_R_32_12_16_INIT_KEY, EVP_R_BAD_KEY_LENGTH);
+ return 0;
+ }
+ return RC5_32_set_key(&data(ctx)->ks, EVP_CIPHER_CTX_key_length(ctx),
+ key, data(ctx)->rounds);
+}
#endif
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