-/**
- * @file decaf/common.h
- * @author Mike Hamburg
+/*
+ * Copyright 2017-2018 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 2015 Cryptography Research, Inc.
*
- * @copyright
- * Copyright (c) 2015 Cryptography Research, Inc. \n
- * Released under the MIT License. See LICENSE.txt for license information.
+ * 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
*
- * @brief Common utility headers for Decaf library.
+ * Originally written by Mike Hamburg
*/
-#ifndef __DECAF_COMMON_H__
-#define __DECAF_COMMON_H__ 1
+#ifndef __C448_COMMON_H__
+# define __C448_COMMON_H__ 1
-#include <stdint.h>
-#include <sys/types.h>
-#include <openssl/e_os2.h>
+# include <openssl/e_os2.h>
#ifdef __cplusplus
extern "C" {
#endif
-/** @cond internal */
-#if defined(DOXYGEN) && !defined(__attribute__)
-#define __attribute__((x))
-#endif
-#define DECAF_NOINLINE __attribute__((noinline))
-/** @endcond */
-
-/* Internal word types.
- *
- * Somewhat tricky. This could be decided separately per platform. However,
- * the structs do need to be all the same size and alignment on a given
- * platform to support dynamic linking, since even if you header was built
- * with eg arch_neon, you might end up linking a library built with arch_arm32.
+/*
+ * Internal word types. Somewhat tricky. This could be decided separately per
+ * platform. However, the structs do need to be all the same size and
+ * alignment on a given platform to support dynamic linking, since even if you
+ * header was built with eg arch_neon, you might end up linking a library built
+ * with arch_arm32.
*/
-#ifndef DECAF_WORD_BITS
- #if (defined(__ILP64__) || defined(__amd64__) || defined(__x86_64__) || (((__UINT_FAST32_MAX__)>>30)>>30))
- #define DECAF_WORD_BITS 64 /**< The number of bits in a word */
- #else
- #define DECAF_WORD_BITS 32 /**< The number of bits in a word */
- #endif
-#endif
-
-#if DECAF_WORD_BITS == 64
-typedef uint64_t decaf_word_t; /**< Word size for internal computations */
-typedef int64_t decaf_sword_t; /**< Signed word size for internal computations */
-typedef uint64_t decaf_bool_t; /**< "Boolean" type, will be set to all-zero or all-one (i.e. -1u) */
-typedef __uint128_t decaf_dword_t; /**< Double-word size for internal computations */
-typedef __int128_t decaf_dsword_t; /**< Signed double-word size for internal computations */
-#elif DECAF_WORD_BITS == 32 /**< The number of bits in a word */
-typedef uint32_t decaf_word_t; /**< Word size for internal computations */
-typedef int32_t decaf_sword_t; /**< Signed word size for internal computations */
-typedef uint32_t decaf_bool_t; /**< "Boolean" type, will be set to all-zero or all-one (i.e. -1u) */
-typedef uint64_t decaf_dword_t; /**< Double-word size for internal computations */
-typedef int64_t decaf_dsword_t; /**< Signed double-word size for internal computations */
-#else
-#error "Only supporting DECAF_WORD_BITS = 32 or 64 for now"
-#endif
-
-/** DECAF_TRUE = -1 so that DECAF_TRUE & x = x */
-static const decaf_bool_t DECAF_TRUE = -(decaf_bool_t)1;
+# ifndef C448_WORD_BITS
+# if (defined(__ILP64__) || defined(__amd64__) || defined(__x86_64__) \
+ || (((__UINT_FAST32_MAX__)>>30)>>30))
+# define C448_WORD_BITS 64 /* The number of bits in a word */
+# else
+# define C448_WORD_BITS 32 /* The number of bits in a word */
+# endif
+# endif
-/** DECAF_FALSE = 0 so that DECAF_FALSE & x = 0 */
-static const decaf_bool_t DECAF_FALSE = 0;
+# if C448_WORD_BITS == 64
+/* Word size for internal computations */
+typedef uint64_t c448_word_t;
+/* Signed word size for internal computations */
+typedef int64_t c448_sword_t;
+/* "Boolean" type, will be set to all-zero or all-one (i.e. -1u) */
+typedef uint64_t c448_bool_t;
+/* Double-word size for internal computations */
+typedef __uint128_t c448_dword_t;
+/* Signed double-word size for internal computations */
+typedef __int128_t c448_dsword_t;
+# elif C448_WORD_BITS == 32
+/* Word size for internal computations */
+typedef uint32_t c448_word_t;
+/* Signed word size for internal computations */
+typedef int32_t c448_sword_t;
+/* "Boolean" type, will be set to all-zero or all-one (i.e. -1u) */
+typedef uint32_t c448_bool_t;
+/* Double-word size for internal computations */
+typedef uint64_t c448_dword_t;
+/* Signed double-word size for internal computations */
+typedef int64_t c448_dsword_t;
+# else
+# error "Only supporting C448_WORD_BITS = 32 or 64 for now"
+# endif
-/** Another boolean type used to indicate success or failure. */
-typedef enum {
- DECAF_SUCCESS = -1, /**< The operation succeeded. */
- DECAF_FAILURE = 0 /**< The operation failed. */
-} decaf_error_t;
+/* C448_TRUE = -1 so that C448_TRUE & x = x */
+static const c448_bool_t C448_TRUE = 0 - (c448_bool_t)1;
+/* C448_FALSE = 0 so that C448_FALSE & x = 0 */
+static const c448_bool_t C448_FALSE = 0;
-/** Return success if x is true */
-static ossl_inline decaf_error_t
-decaf_succeed_if(decaf_bool_t x) {
- return (decaf_error_t)x;
-}
+/* Another boolean type used to indicate success or failure. */
+typedef enum {
+ C448_SUCCESS = -1, /**< The operation succeeded. */
+ C448_FAILURE = 0 /**< The operation failed. */
+} c448_error_t;
-/** Return DECAF_TRUE iff x == DECAF_SUCCESS */
-static ossl_inline decaf_bool_t
-decaf_successful(decaf_error_t e) {
- decaf_dword_t w = ((decaf_word_t)e) ^ ((decaf_word_t)DECAF_SUCCESS);
- return (w-1)>>DECAF_WORD_BITS;
+/* Return success if x is true */
+static ossl_inline c448_error_t c448_succeed_if(c448_bool_t x)
+{
+ return (c448_error_t) x;
}
-
+
#ifdef __cplusplus
} /* extern "C" */
#endif
-
-#endif /* __DECAF_COMMON_H__ */
+
+#endif /* __C448_COMMON_H__ */
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