blob: 33a8009ffdfe7c468b4aa6e50179285952dd5f6e (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
|
/*
* Copyright (C) 2014 Andreas Steffen
* HSR Hochschule fuer Technik Rapperswil
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*/
/**
* @defgroup bliss_param_set bliss_param_set
* @{ @ingroup bliss_p
*/
#ifndef BLISS_PARAM_SET_H_
#define BLISS_PARAM_SET_H_
typedef enum bliss_param_set_id_t bliss_param_set_id_t;
typedef struct bliss_param_set_t bliss_param_set_t;
#include "bliss_fft_params.h"
#include "bliss_huffman_code.h"
#include <library.h>
/**
* BLISS signature parameter set ID list
*/
enum bliss_param_set_id_t {
BLISS_I = 1,
BLISS_II = 2,
BLISS_III = 3,
BLISS_IV = 4,
BLISS_B_I = 5,
BLISS_B_II = 6,
BLISS_B_III = 7,
BLISS_B_IV = 8
};
extern enum_name_t *bliss_param_set_id_names;
/**
* BLISS
*/
struct bliss_param_set_t {
/**
* BLISS parameter set ID
*/
bliss_param_set_id_t id;
/**
* BLISS parameter set OID
*/
int oid;
/**
* Security strength in bits
*/
uint16_t strength;
/**
* Prime modulus
*/
uint16_t q;
/**
* Number of bits in q
*/
uint16_t q_bits;
/**
* Inverse of (q + 2) mod 2q
*/
uint16_t q2_inv;
/**
* Ring dimension equal to the number of polynomial coefficients
*/
uint16_t n;
/**
* Number of bits in n
*/
uint16_t n_bits;
/**
* FFT parameters
*/
bliss_fft_params_t *fft_params;
/**
* Number of [-1, +1] secret key coefficients
*/
uint16_t non_zero1;
/**
* Number of [-2, +2] secret key coefficients
*/
uint16_t non_zero2;
/**
* Number of secret key terms that go into Nk(S) norm
*/
uint16_t kappa;
/**
* Maximum Nk(S) tolerable NK(S) norm (BLISS only)
*/
uint32_t nks_max;
/**
* Maximum value Pmax for ||Sc'||^2 norm (BLISS-B only)
*/
uint32_t p_max;
/**
* Standard deviation sigma
*/
uint16_t sigma;
/**
* k_sigma = ceiling[ sqrt(2*ln 2) * sigma ]
*/
uint16_t k_sigma;
/**
* Number of bits in k_sigma
*/
uint16_t k_sigma_bits;
/**
* Coefficients for Bernoulli sampling with exponential biases
*/
uint8_t *c;
/**
* Number of columns in Bernoulli coefficient table
*/
size_t c_cols;
/**
* Number of rows in Bernoulli coefficient table
*/
size_t c_rows;
/**
* Number of bits in z1
*/
uint16_t z1_bits;
/**
* Number of z2 bits to be dropped after rounding
*/
uint16_t d;
/**
* Modulus p = floor(2q / 2^d) applied after bit dropping
*/
uint16_t p;
/**
* M = sigma^2 / alpha_rejection^2
*/
uint32_t M;
/**
* B_infinity bound
*/
uint16_t B_inf;
/**
* B_verify bound
*/
uint32_t B_l2;
};
/**
* Get BLISS signature parameter set by BLISS parameter set ID
*
* @param id BLISS parameter set ID
* @return BLISS parameter set
*/
bliss_param_set_t* bliss_param_set_get_by_id(bliss_param_set_id_t id);
/**
* Get BLISS signature parameter set by BLISS parameter set OID
*
* @param oid BLISS parameter set OID
* @return BLISS parameter set
*/
bliss_param_set_t* bliss_param_set_get_by_oid(int oid);
#endif /** BLISS_PARAM_SET_H_ @}*/
|
