5230455705

Committed 10 Jun 2023 02:30PM UTC coverage: 91.715% (-0.03%) from 91.746%

Build # 5230455705

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randombit

Commit Message

Merge GH #3584 Change clang-format AllowShortFunctionsOnASingleLine config from All to Inline

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95.45

/src/lib/ffi/ffi_mp.cpp

/*
* (C) 2015,2017 Jack Lloyd
* (C) 2017 Ribose Inc
*
* Botan is released under the Simplified BSD License (see license.txt)
*/

#include <botan/ffi.h>

#include <botan/numthry.h>
#include <botan/reducer.h>
#include <botan/internal/divide.h>
#include <botan/internal/ffi_mp.h>
#include <botan/internal/ffi_rng.h>
#include <botan/internal/ffi_util.h>

extern "C" {

using namespace Botan_FFI;

int botan_mp_init(botan_mp_t* mp_out) {
   return ffi_guard_thunk(__func__, [=]() -> int {
      if(mp_out == nullptr) {
         return BOTAN_FFI_ERROR_NULL_POINTER;
      }

      auto mp = std::make_unique<Botan::BigInt>();
      *mp_out = new botan_mp_struct(std::move(mp));
      return BOTAN_FFI_SUCCESS;
   });
}

int botan_mp_clear(botan_mp_t mp) {
   return BOTAN_FFI_VISIT(mp, [](auto& bn) { bn.clear(); });
}

int botan_mp_set_from_int(botan_mp_t mp, int initial_value) {
   return BOTAN_FFI_VISIT(mp, [=](auto& bn) { bn = Botan::BigInt::from_s32(initial_value); });
}

int botan_mp_set_from_str(botan_mp_t mp, const char* str) {
   return BOTAN_FFI_VISIT(mp, [=](auto& bn) { bn = Botan::BigInt(str); });
}

int botan_mp_set_from_radix_str(botan_mp_t mp, const char* str, size_t radix) {
   return BOTAN_FFI_VISIT(mp, [=](auto& bn) {
      Botan::BigInt::Base base;
      if(radix == 10)
         base = Botan::BigInt::Decimal;
      else if(radix == 16)
         base = Botan::BigInt::Hexadecimal;
      else
         return BOTAN_FFI_ERROR_NOT_IMPLEMENTED;

      const uint8_t* bytes = Botan::cast_char_ptr_to_uint8(str);
      const size_t len = strlen(str);

      bn = Botan::BigInt(bytes, len, base);
      return BOTAN_FFI_SUCCESS;
   });
}

int botan_mp_set_from_mp(botan_mp_t dest, const botan_mp_t source) {
   return BOTAN_FFI_VISIT(dest, [=](auto& bn) { bn = safe_get(source); });
}

int botan_mp_is_negative(const botan_mp_t mp) {
   return BOTAN_FFI_VISIT(mp, [](const auto& bn) { return bn.is_negative() ? 1 : 0; });
}

int botan_mp_is_positive(const botan_mp_t mp) {
   return BOTAN_FFI_VISIT(mp, [](const auto& bn) { return bn.is_positive() ? 1 : 0; });
}

int botan_mp_flip_sign(botan_mp_t mp) {
   return BOTAN_FFI_VISIT(mp, [](auto& bn) { bn.flip_sign(); });
}

int botan_mp_from_bin(botan_mp_t mp, const uint8_t bin[], size_t bin_len) {
   return BOTAN_FFI_VISIT(mp, [=](auto& bn) { bn.binary_decode(bin, bin_len); });
}

int botan_mp_to_hex(const botan_mp_t mp, char* out) {
   return BOTAN_FFI_VISIT(mp, [=](const auto& bn) {
      const std::string hex = bn.to_hex_string();
      std::memcpy(out, hex.c_str(), 1 + hex.size());
   });
}

int botan_mp_to_str(const botan_mp_t mp, uint8_t digit_base, char* out, size_t* out_len) {
   return BOTAN_FFI_VISIT(mp, [=](const auto& bn) -> int {
      if(digit_base == 0 || digit_base == 10)
         return write_str_output(out, out_len, bn.to_dec_string());
      else if(digit_base == 16)
         return write_str_output(out, out_len, bn.to_hex_string());
      else
         return BOTAN_FFI_ERROR_BAD_PARAMETER;
   });
}

int botan_mp_to_bin(const botan_mp_t mp, uint8_t vec[]) {
   return BOTAN_FFI_VISIT(mp, [=](const auto& bn) { bn.binary_encode(vec); });
}

int botan_mp_to_uint32(const botan_mp_t mp, uint32_t* val) {
   if(val == nullptr) {
      return BOTAN_FFI_ERROR_NULL_POINTER;
   }
   return BOTAN_FFI_VISIT(mp, [=](const auto& bn) { *val = bn.to_u32bit(); });
}

int botan_mp_destroy(botan_mp_t mp) {
   return BOTAN_FFI_CHECKED_DELETE(mp);
}

int botan_mp_add(botan_mp_t result, const botan_mp_t x, const botan_mp_t y) {
   return BOTAN_FFI_VISIT(result, [=](auto& res) {
      if(result == x)
         res += safe_get(y);
      else
         res = safe_get(x) + safe_get(y);
   });
}

int botan_mp_sub(botan_mp_t result, const botan_mp_t x, const botan_mp_t y) {
   return BOTAN_FFI_VISIT(result, [=](auto& res) {
      if(result == x)
         res -= safe_get(y);
      else
         res = safe_get(x) - safe_get(y);
   });
}

int botan_mp_add_u32(botan_mp_t result, const botan_mp_t x, uint32_t y) {
   return BOTAN_FFI_VISIT(result, [=](auto& res) {
      if(result == x)
         res += static_cast<Botan::word>(y);
      else
         res = safe_get(x) + static_cast<Botan::word>(y);
   });
}

int botan_mp_sub_u32(botan_mp_t result, const botan_mp_t x, uint32_t y) {
   return BOTAN_FFI_VISIT(result, [=](auto& res) {
      if(result == x)
         res -= static_cast<Botan::word>(y);
      else
         res = safe_get(x) - static_cast<Botan::word>(y);
   });
}

int botan_mp_mul(botan_mp_t result, const botan_mp_t x, const botan_mp_t y) {
   return BOTAN_FFI_VISIT(result, [=](auto& res) {
      if(result == x)
         res *= safe_get(y);
      else
         res = safe_get(x) * safe_get(y);
   });
}

int botan_mp_div(botan_mp_t quotient, botan_mp_t remainder, const botan_mp_t x, const botan_mp_t y) {
   return BOTAN_FFI_VISIT(quotient, [=](auto& q) {
      Botan::BigInt r;
      Botan::vartime_divide(safe_get(x), safe_get(y), q, r);
      safe_get(remainder) = r;
   });
}

int botan_mp_equal(const botan_mp_t x_w, const botan_mp_t y_w) {
   return BOTAN_FFI_VISIT(x_w, [=](const auto& x) -> int { return x == safe_get(y_w); });
}

int botan_mp_is_zero(const botan_mp_t mp) {
   return BOTAN_FFI_VISIT(mp, [](const auto& bn) -> int { return bn.is_zero(); });
}

int botan_mp_is_odd(const botan_mp_t mp) {
   return BOTAN_FFI_VISIT(mp, [](const auto& bn) -> int { return bn.is_odd(); });
}

int botan_mp_is_even(const botan_mp_t mp) {
   return BOTAN_FFI_VISIT(mp, [](const auto& bn) -> int { return bn.is_even(); });
}

int botan_mp_cmp(int* result, const botan_mp_t x_w, const botan_mp_t y_w) {
   return BOTAN_FFI_VISIT(x_w, [=](auto& x) { *result = x.cmp(safe_get(y_w)); });
}

int botan_mp_swap(botan_mp_t x_w, botan_mp_t y_w) {
   return BOTAN_FFI_VISIT(x_w, [=](auto& x) { x.swap(safe_get(y_w)); });
}

// Return (base^exponent) % modulus
int botan_mp_powmod(botan_mp_t out, const botan_mp_t base, const botan_mp_t exponent, const botan_mp_t modulus) {
   return BOTAN_FFI_VISIT(
      out, [=](auto& o) { o = Botan::power_mod(safe_get(base), safe_get(exponent), safe_get(modulus)); });
}

int botan_mp_lshift(botan_mp_t out, const botan_mp_t in, size_t shift) {
   return BOTAN_FFI_VISIT(out, [=](auto& o) { o = safe_get(in) << shift; });
}

int botan_mp_rshift(botan_mp_t out, const botan_mp_t in, size_t shift) {
   return BOTAN_FFI_VISIT(out, [=](auto& o) { o = safe_get(in) >> shift; });
}

int botan_mp_mod_inverse(botan_mp_t out, const botan_mp_t in, const botan_mp_t modulus) {
   return BOTAN_FFI_VISIT(out, [=](auto& o) { o = Botan::inverse_mod(safe_get(in), safe_get(modulus)); });
}

int botan_mp_mod_mul(botan_mp_t out, const botan_mp_t x, const botan_mp_t y, const botan_mp_t modulus) {
   return BOTAN_FFI_VISIT(out, [=](auto& o) {
      Botan::Modular_Reducer reducer(safe_get(modulus));
      o = reducer.multiply(safe_get(x), safe_get(y));
   });
}

int botan_mp_rand_bits(botan_mp_t rand_out, botan_rng_t rng, size_t bits) {
   return BOTAN_FFI_VISIT(rng, [=](auto& r) { safe_get(rand_out).randomize(r, bits); });
}

int botan_mp_rand_range(botan_mp_t rand_out, botan_rng_t rng, const botan_mp_t lower, const botan_mp_t upper) {
   return BOTAN_FFI_VISIT(
      rng, [=](auto& r) { safe_get(rand_out) = Botan::BigInt::random_integer(r, safe_get(lower), safe_get(upper)); });
}

int botan_mp_gcd(botan_mp_t out, const botan_mp_t x, const botan_mp_t y) {
   return BOTAN_FFI_VISIT(out, [=](auto& o) { o = Botan::gcd(safe_get(x), safe_get(y)); });
}

int botan_mp_is_prime(const botan_mp_t mp, botan_rng_t rng, size_t test_prob) {
   return BOTAN_FFI_VISIT(mp, [=](const auto& n) { return (Botan::is_prime(n, safe_get(rng), test_prob)) ? 1 : 0; });
}

int botan_mp_get_bit(const botan_mp_t mp, size_t bit) {
   return BOTAN_FFI_VISIT(mp, [=](const auto& n) -> int { return n.get_bit(bit); });
}

int botan_mp_set_bit(botan_mp_t mp, size_t bit) {
   return BOTAN_FFI_VISIT(mp, [=](auto& n) { n.set_bit(bit); });
}

int botan_mp_clear_bit(botan_mp_t mp, size_t bit) {
   return BOTAN_FFI_VISIT(mp, [=](auto& n) { n.clear_bit(bit); });
}

int botan_mp_num_bits(const botan_mp_t mp, size_t* bits) {
   return BOTAN_FFI_VISIT(mp, [=](const auto& n) { *bits = n.bits(); });
}

int botan_mp_num_bytes(const botan_mp_t mp, size_t* bytes) {
   return BOTAN_FFI_VISIT(mp, [=](const auto& n) { *bytes = n.bytes(); });
}
}

1	/*
2	* (C) 2015,2017 Jack Lloyd
3	* (C) 2017 Ribose Inc
4	*
5	* Botan is released under the Simplified BSD License (see license.txt)
6	*/
7
8	#include <botan/ffi.h>
9
10	#include <botan/numthry.h>
11	#include <botan/reducer.h>
12	#include <botan/internal/divide.h>
13	#include <botan/internal/ffi_mp.h>
14	#include <botan/internal/ffi_rng.h>
15	#include <botan/internal/ffi_util.h>
16
17	extern "C" {
18
19	using namespace Botan_FFI;
20
21	int botan_mp_init(botan_mp_t* mp_out) {	133✔
22	return ffi_guard_thunk(__func__, [=]() -> int {	133✔
23	if(mp_out == nullptr) {	133✔
24	return BOTAN_FFI_ERROR_NULL_POINTER;
25	}
26
27	auto mp = std::make_unique<Botan::BigInt>();	133✔
28	*mp_out = new botan_mp_struct(std::move(mp));	133✔
29	return BOTAN_FFI_SUCCESS;	133✔
30	});	266✔
31	}
32
33	int botan_mp_clear(botan_mp_t mp) {	×
34	return BOTAN_FFI_VISIT(mp, [](auto& bn) { bn.clear(); });	×
35	}
36
37	int botan_mp_set_from_int(botan_mp_t mp, int initial_value) {	2✔
38	return BOTAN_FFI_VISIT(mp, [=](auto& bn) { bn = Botan::BigInt::from_s32(initial_value); });	4✔
39	}
40
41	int botan_mp_set_from_str(botan_mp_t mp, const char* str) {	29✔
42	return BOTAN_FFI_VISIT(mp, [=](auto& bn) { bn = Botan::BigInt(str); });	58✔
43	}
44
45	int botan_mp_set_from_radix_str(botan_mp_t mp, const char* str, size_t radix) {	4✔
46	return BOTAN_FFI_VISIT(mp, [=](auto& bn) {	10✔
47	Botan::BigInt::Base base;
48	if(radix == 10)
49	base = Botan::BigInt::Decimal;
50	else if(radix == 16)
51	base = Botan::BigInt::Hexadecimal;
52	else
53	return BOTAN_FFI_ERROR_NOT_IMPLEMENTED;
54
55	const uint8_t* bytes = Botan::cast_char_ptr_to_uint8(str);
56	const size_t len = strlen(str);
57
58	bn = Botan::BigInt(bytes, len, base);
59	return BOTAN_FFI_SUCCESS;
60	});
61	}
62
63	int botan_mp_set_from_mp(botan_mp_t dest, const botan_mp_t source) {	4✔
64	return BOTAN_FFI_VISIT(dest, [=](auto& bn) { bn = safe_get(source); });	8✔
65	}
66
67	int botan_mp_is_negative(const botan_mp_t mp) {	10✔
68	return BOTAN_FFI_VISIT(mp, [](const auto& bn) { return bn.is_negative() ? 1 : 0; });	20✔
69	}
70
71	int botan_mp_is_positive(const botan_mp_t mp) {	6✔
72	return BOTAN_FFI_VISIT(mp, [](const auto& bn) { return bn.is_positive() ? 1 : 0; });	12✔
73	}
74
75	int botan_mp_flip_sign(botan_mp_t mp) {	5✔
76	return BOTAN_FFI_VISIT(mp, [](auto& bn) { bn.flip_sign(); });	10✔
77	}
78
79	int botan_mp_from_bin(botan_mp_t mp, const uint8_t bin[], size_t bin_len) {	1✔
80	return BOTAN_FFI_VISIT(mp, [=](auto& bn) { bn.binary_decode(bin, bin_len); });	2✔
81	}
82
83	int botan_mp_to_hex(const botan_mp_t mp, char* out) {	38✔
84	return BOTAN_FFI_VISIT(mp, [=](const auto& bn) {	76✔
85	const std::string hex = bn.to_hex_string();
86	std::memcpy(out, hex.c_str(), 1 + hex.size());
87	});
88	}
89
90	int botan_mp_to_str(const botan_mp_t mp, uint8_t digit_base, char* out, size_t* out_len) {	14✔
91	return BOTAN_FFI_VISIT(mp, [=](const auto& bn) -> int {	33✔
92	if(digit_base == 0 \|\| digit_base == 10)
93	return write_str_output(out, out_len, bn.to_dec_string());
94	else if(digit_base == 16)
95	return write_str_output(out, out_len, bn.to_hex_string());
96	else
97	return BOTAN_FFI_ERROR_BAD_PARAMETER;
98	});
99	}
100
101	int botan_mp_to_bin(const botan_mp_t mp, uint8_t vec[]) {	3✔
102	return BOTAN_FFI_VISIT(mp, [=](const auto& bn) { bn.binary_encode(vec); });	6✔
103	}
104
105	int botan_mp_to_uint32(const botan_mp_t mp, uint32_t* val) {	5✔
106	if(val == nullptr) {	5✔
107	return BOTAN_FFI_ERROR_NULL_POINTER;
108	}
109	return BOTAN_FFI_VISIT(mp, [=](const auto& bn) { *val = bn.to_u32bit(); });	10✔
110	}
111
112	int botan_mp_destroy(botan_mp_t mp) {	133✔
113	return BOTAN_FFI_CHECKED_DELETE(mp);	133✔
114	}
115
116	int botan_mp_add(botan_mp_t result, const botan_mp_t x, const botan_mp_t y) {	5✔
117	return BOTAN_FFI_VISIT(result, [=](auto& res) {	10✔
118	if(result == x)
119	res += safe_get(y);
120	else
121	res = safe_get(x) + safe_get(y);
122	});
123	}
124
125	int botan_mp_sub(botan_mp_t result, const botan_mp_t x, const botan_mp_t y) {	1✔
126	return BOTAN_FFI_VISIT(result, [=](auto& res) {	3✔
127	if(result == x)
128	res -= safe_get(y);
129	else
130	res = safe_get(x) - safe_get(y);
131	});
132	}
133
134	int botan_mp_add_u32(botan_mp_t result, const botan_mp_t x, uint32_t y) {	2✔
135	return BOTAN_FFI_VISIT(result, [=](auto& res) {	4✔
136	if(result == x)
137	res += static_cast<Botan::word>(y);
138	else
139	res = safe_get(x) + static_cast<Botan::word>(y);
140	});
141	}
142
143	int botan_mp_sub_u32(botan_mp_t result, const botan_mp_t x, uint32_t y) {	1✔
144	return BOTAN_FFI_VISIT(result, [=](auto& res) {	2✔
145	if(result == x)
146	res -= static_cast<Botan::word>(y);
147	else
148	res = safe_get(x) - static_cast<Botan::word>(y);
149	});
150	}
151
152	int botan_mp_mul(botan_mp_t result, const botan_mp_t x, const botan_mp_t y) {	6✔
153	return BOTAN_FFI_VISIT(result, [=](auto& res) {	13✔
154	if(result == x)
155	res *= safe_get(y);
156	else
157	res = safe_get(x) * safe_get(y);
158	});
159	}
160
161	int botan_mp_div(botan_mp_t quotient, botan_mp_t remainder, const botan_mp_t x, const botan_mp_t y) {	2✔
162	return BOTAN_FFI_VISIT(quotient, [=](auto& q) {	6✔
163	Botan::BigInt r;
164	Botan::vartime_divide(safe_get(x), safe_get(y), q, r);
165	safe_get(remainder) = r;
166	});
167	}
168
169	int botan_mp_equal(const botan_mp_t x_w, const botan_mp_t y_w) {	10✔
170	return BOTAN_FFI_VISIT(x_w, [=](const auto& x) -> int { return x == safe_get(y_w); });	20✔
171	}
172
173	int botan_mp_is_zero(const botan_mp_t mp) {	3✔
174	return BOTAN_FFI_VISIT(mp, [](const auto& bn) -> int { return bn.is_zero(); });	6✔
175	}
176
177	int botan_mp_is_odd(const botan_mp_t mp) {	2✔
178	return BOTAN_FFI_VISIT(mp, [](const auto& bn) -> int { return bn.is_odd(); });	4✔
179	}
180
181	int botan_mp_is_even(const botan_mp_t mp) {	2✔
182	return BOTAN_FFI_VISIT(mp, [](const auto& bn) -> int { return bn.is_even(); });	4✔
183	}
184
185	int botan_mp_cmp(int* result, const botan_mp_t x_w, const botan_mp_t y_w) {	38✔
186	return BOTAN_FFI_VISIT(x_w, [=](auto& x) { *result = x.cmp(safe_get(y_w)); });	76✔
187	}
188
189	int botan_mp_swap(botan_mp_t x_w, botan_mp_t y_w) {	×
190	return BOTAN_FFI_VISIT(x_w, [=](auto& x) { x.swap(safe_get(y_w)); });	×
191	}
192
193	// Return (base^exponent) % modulus
194	int botan_mp_powmod(botan_mp_t out, const botan_mp_t base, const botan_mp_t exponent, const botan_mp_t modulus) {	2✔
195	return BOTAN_FFI_VISIT(	4✔
196	out, [=](auto& o) { o = Botan::power_mod(safe_get(base), safe_get(exponent), safe_get(modulus)); });
197	}
198
199	int botan_mp_lshift(botan_mp_t out, const botan_mp_t in, size_t shift) {	2✔
200	return BOTAN_FFI_VISIT(out, [=](auto& o) { o = safe_get(in) << shift; });	4✔
201	}
202
203	int botan_mp_rshift(botan_mp_t out, const botan_mp_t in, size_t shift) {	4✔
204	return BOTAN_FFI_VISIT(out, [=](auto& o) { o = safe_get(in) >> shift; });	8✔
205	}
206
207	int botan_mp_mod_inverse(botan_mp_t out, const botan_mp_t in, const botan_mp_t modulus) {	2✔
208	return BOTAN_FFI_VISIT(out, [=](auto& o) { o = Botan::inverse_mod(safe_get(in), safe_get(modulus)); });	4✔
209	}
210
211	int botan_mp_mod_mul(botan_mp_t out, const botan_mp_t x, const botan_mp_t y, const botan_mp_t modulus) {	2✔
212	return BOTAN_FFI_VISIT(out, [=](auto& o) {	5✔
213	Botan::Modular_Reducer reducer(safe_get(modulus));
214	o = reducer.multiply(safe_get(x), safe_get(y));
215	});
216	}
217
218	int botan_mp_rand_bits(botan_mp_t rand_out, botan_rng_t rng, size_t bits) {	2✔
219	return BOTAN_FFI_VISIT(rng, [=](auto& r) { safe_get(rand_out).randomize(r, bits); });	4✔
220	}
221
222	int botan_mp_rand_range(botan_mp_t rand_out, botan_rng_t rng, const botan_mp_t lower, const botan_mp_t upper) {	10✔
223	return BOTAN_FFI_VISIT(	30✔
224	rng, [=](auto& r) { safe_get(rand_out) = Botan::BigInt::random_integer(r, safe_get(lower), safe_get(upper)); });
225	}
226
227	int botan_mp_gcd(botan_mp_t out, const botan_mp_t x, const botan_mp_t y) {	4✔
228	return BOTAN_FFI_VISIT(out, [=](auto& o) { o = Botan::gcd(safe_get(x), safe_get(y)); });	8✔
229	}
230
231	int botan_mp_is_prime(const botan_mp_t mp, botan_rng_t rng, size_t test_prob) {	5✔
232	return BOTAN_FFI_VISIT(mp, [=](const auto& n) { return (Botan::is_prime(n, safe_get(rng), test_prob)) ? 1 : 0; });	10✔
233	}
234
235	int botan_mp_get_bit(const botan_mp_t mp, size_t bit) {	6✔
236	return BOTAN_FFI_VISIT(mp, [=](const auto& n) -> int { return n.get_bit(bit); });	12✔
237	}
238
239	int botan_mp_set_bit(botan_mp_t mp, size_t bit) {	2✔
240	return BOTAN_FFI_VISIT(mp, [=](auto& n) { n.set_bit(bit); });	4✔
241	}
242
243	int botan_mp_clear_bit(botan_mp_t mp, size_t bit) {	2✔
244	return BOTAN_FFI_VISIT(mp, [=](auto& n) { n.clear_bit(bit); });	4✔
245	}
246
247	int botan_mp_num_bits(const botan_mp_t mp, size_t* bits) {	7✔
248	return BOTAN_FFI_VISIT(mp, [=](const auto& n) { *bits = n.bits(); });	14✔
249	}
250
251	int botan_mp_num_bytes(const botan_mp_t mp, size_t* bytes) {	45✔
252	return BOTAN_FFI_VISIT(mp, [=](const auto& n) { *bytes = n.bytes(); });	90✔
253	}
254	}

randombit / botan / 5230455705

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