Revert "we do not use this code anymore"

This reverts commit 2d02051caa999d383103931097e44b9cac56c3fb.

1 files changed, 63 insertions, 0 deletions

diff --git a/include/openssl/rc5.h b/include/openssl/rc5.h
new file mode 100644
index 0000000000..793f88e4e8
--- /dev/null
+++ b/include/openssl/rc5.h
@@ -0,0 +1,63 @@
+/*
+ * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the OpenSSL license (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 HEADER_RC5_H
+# define HEADER_RC5_H
+
+# include <openssl/opensslconf.h>
+
+# ifndef OPENSSL_NO_RC5
+# ifdef  __cplusplus
+extern "C" {
+# endif
+
+# define RC5_ENCRYPT     1
+# define RC5_DECRYPT     0
+
+# define RC5_32_INT unsigned int
+
+# 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;
+
+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
+
+#endif