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+/* crypto/rc5/rc5.h */
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
+ * 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.]
+ */
+
+#ifndef HEADER_RC5_H
+#define HEADER_RC5_H
+
+#include <openssl/opensslconf.h> /* OPENSSL_NO_RC5 */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifdef OPENSSL_NO_RC5
+#error RC5 is disabled.
+#endif
+
+#define RC5_ENCRYPT 1
+#define RC5_DECRYPT 0
+
+/* 32 bit. For Alpha, things may get weird */
+#define RC5_32_INT unsigned long
+
+#define RC5_32_BLOCK 8
+#define RC5_32_KEY_LENGTH 16 /* This is a default, max is 255 */
+
+/* This are the only values supported. Tweak the code if you want more
+ * The most supported modes will be
+ * RC5-32/12/16
+ * RC5-32/16/8
+ */
+#define RC5_8_ROUNDS 8
+#define RC5_12_ROUNDS 12
+#define RC5_16_ROUNDS 16
+
+typedef struct rc5_key_st
+ {
+ /* Number of rounds */
+ int rounds;
+ RC5_32_INT data[2*(RC5_16_ROUNDS+1)];
+ } RC5_32_KEY;
+
+#ifdef OPENSSL_FIPS
+void private_RC5_32_set_key(RC5_32_KEY *key, int len, const unsigned char *data,
+ int rounds);
+#endif
+void RC5_32_set_key(RC5_32_KEY *key, int len, const unsigned char *data,
+ int rounds);
+void RC5_32_ecb_encrypt(const unsigned char *in,unsigned char *out,RC5_32_KEY *key,
+ int enc);
+void RC5_32_encrypt(unsigned long *data,RC5_32_KEY *key);
+void RC5_32_decrypt(unsigned long *data,RC5_32_KEY *key);
+void RC5_32_cbc_encrypt(const unsigned char *in, unsigned char *out,
+ long length, RC5_32_KEY *ks, unsigned char *iv,
+ int enc);
+void RC5_32_cfb64_encrypt(const unsigned char *in, unsigned char *out,
+ long length, RC5_32_KEY *schedule,
+ unsigned char *ivec, int *num, int enc);
+void RC5_32_ofb64_encrypt(const unsigned char *in, unsigned char *out,
+ long length, RC5_32_KEY *schedule,
+ unsigned char *ivec, int *num);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif