/src/openssl111/crypto/ec/curve448/curve448utils.h
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1 | | /* |
2 | | * Copyright 2017-2019 The OpenSSL Project Authors. All Rights Reserved. |
3 | | * Copyright 2015 Cryptography Research, Inc. |
4 | | * |
5 | | * Licensed under the OpenSSL license (the "License"). You may not use |
6 | | * this file except in compliance with the License. You can obtain a copy |
7 | | * in the file LICENSE in the source distribution or at |
8 | | * https://www.openssl.org/source/license.html |
9 | | * |
10 | | * Originally written by Mike Hamburg |
11 | | */ |
12 | | |
13 | | #ifndef OSSL_CRYPTO_EC_CURVE448UTILS_H |
14 | | # define OSSL_CRYPTO_EC_CURVE448UTILS_H |
15 | | |
16 | | # include <openssl/e_os2.h> |
17 | | |
18 | | /* |
19 | | * Internal word types. Somewhat tricky. This could be decided separately per |
20 | | * platform. However, the structs do need to be all the same size and |
21 | | * alignment on a given platform to support dynamic linking, since even if you |
22 | | * header was built with eg arch_neon, you might end up linking a library built |
23 | | * with arch_arm32. |
24 | | */ |
25 | | # ifndef C448_WORD_BITS |
26 | | # if (defined(__SIZEOF_INT128__) && (__SIZEOF_INT128__ == 16)) \ |
27 | | && !defined(__sparc__) \ |
28 | | && (!defined(__SIZEOF_LONG__) || (__SIZEOF_LONG__ == 8)) |
29 | | |
30 | 0 | # define C448_WORD_BITS 64 /* The number of bits in a word */ |
31 | | # else |
32 | | # define C448_WORD_BITS 32 /* The number of bits in a word */ |
33 | | # endif |
34 | | # endif |
35 | | |
36 | | # if C448_WORD_BITS == 64 |
37 | | /* Word size for internal computations */ |
38 | | typedef uint64_t c448_word_t; |
39 | | /* Signed word size for internal computations */ |
40 | | typedef int64_t c448_sword_t; |
41 | | /* "Boolean" type, will be set to all-zero or all-one (i.e. -1u) */ |
42 | | typedef uint64_t c448_bool_t; |
43 | | /* Double-word size for internal computations */ |
44 | | typedef __uint128_t c448_dword_t; |
45 | | /* Signed double-word size for internal computations */ |
46 | | typedef __int128_t c448_dsword_t; |
47 | | # elif C448_WORD_BITS == 32 |
48 | | /* Word size for internal computations */ |
49 | | typedef uint32_t c448_word_t; |
50 | | /* Signed word size for internal computations */ |
51 | | typedef int32_t c448_sword_t; |
52 | | /* "Boolean" type, will be set to all-zero or all-one (i.e. -1u) */ |
53 | | typedef uint32_t c448_bool_t; |
54 | | /* Double-word size for internal computations */ |
55 | | typedef uint64_t c448_dword_t; |
56 | | /* Signed double-word size for internal computations */ |
57 | | typedef int64_t c448_dsword_t; |
58 | | # else |
59 | | # error "Only supporting C448_WORD_BITS = 32 or 64 for now" |
60 | | # endif |
61 | | |
62 | | /* C448_TRUE = -1 so that C448_TRUE & x = x */ |
63 | | # define C448_TRUE (0 - (c448_bool_t)1) |
64 | | |
65 | | /* C448_FALSE = 0 so that C448_FALSE & x = 0 */ |
66 | | # define C448_FALSE 0 |
67 | | |
68 | | /* Another boolean type used to indicate success or failure. */ |
69 | | typedef enum { |
70 | | C448_SUCCESS = -1, /**< The operation succeeded. */ |
71 | | C448_FAILURE = 0 /**< The operation failed. */ |
72 | | } c448_error_t; |
73 | | |
74 | | /* Return success if x is true */ |
75 | | static ossl_inline c448_error_t c448_succeed_if(c448_bool_t x) |
76 | 0 | { |
77 | 0 | return (c448_error_t) x; |
78 | 0 | } Unexecuted instantiation: ecx_meth.c:c448_succeed_if Unexecuted instantiation: curve448.c:c448_succeed_if Unexecuted instantiation: curve448_tables.c:c448_succeed_if Unexecuted instantiation: eddsa.c:c448_succeed_if Unexecuted instantiation: f_generic.c:c448_succeed_if Unexecuted instantiation: scalar.c:c448_succeed_if Unexecuted instantiation: f_impl.c:c448_succeed_if |
79 | | |
80 | | #endif /* __C448_COMMON_H__ */ |