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Defined BLISS I and IV parameter sets

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This commit is contained in:
Andreas Steffen
2014-11-29 14:51:14 +01:00
parent 6d31c7ef74
commit 73a327404d
4 changed files with 365 additions and 19 deletions
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src/libstrongswan/plugins/bliss/Makefile.am
+1
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@@ -13,6 +13,7 @@ endif
libstrongswan_bliss_la_SOURCES = \
bliss_plugin.h bliss_plugin.c \
bliss_param_set.h bliss_param_set.c \
bliss_private_key.h bliss_private_key.c \
bliss_public_key.h bliss_public_key.c \
bliss_fft.h bliss_fft.c \
src/libstrongswan/plugins/bliss/bliss_param_set.c
+96
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@@ -0,0 +1,96 @@
/*
* 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.
*/
#include "bliss_param_set.h"
#include <asn1/oid.h>
ENUM(bliss_param_set_id_names, BLISS_I, BLISS_IV,
"BLISS-I",
"BLISS-II",
"BLISS-III",
"BLISS-IV"
);
/**
* BLISS signature parameter set definitions
*/
static bliss_param_set_t bliss_param_sets[] = {
/* BLISS-I scheme */
{
.id = BLISS_I,
.oid = OID_BLISS_I,
.strength = 128,
.q = 12289,
.n = 512,
.n_bits = 9,
.fft_params = &bliss_fft_12289_512,
.non_zero1 = 154,
.non_zero2 = 0,
.kappa = 23,
.nks_max = 46479,
},
/* BLISS-IV scheme */
{
.id = BLISS_IV,
.oid = OID_BLISS_IV,
.strength = 192,
.q = 12289,
.n = 512,
.n_bits = 9,
.fft_params = &bliss_fft_12289_512,
.non_zero1 = 231,
.non_zero2 = 31,
.kappa = 39,
.nks_max = 244669,
}
};
/**
* See header.
*/
bliss_param_set_t* bliss_param_set_get_by_id(bliss_param_set_id_t id)
{
int i;
for (i = 0; i < countof(bliss_param_sets); i++)
{
if (bliss_param_sets[i].id == id)
{
return &bliss_param_sets[i];
}
}
return NULL;
}
/**
* See header.
*/
bliss_param_set_t* bliss_param_set_get_by_oid(int oid)
{
int i;
for (i = 0; i < countof(bliss_param_sets); i++)
{
if (bliss_param_sets[i].oid == oid)
{
return &bliss_param_sets[i];
}
}
return NULL;
}
src/libstrongswan/plugins/bliss/bliss_param_set.h
+121
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@@ -0,0 +1,121 @@
/*
* 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 <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
};
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;
/**
* 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
*/
uint32_t nks_max;
};
/**
* 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_ @}*/
src/libstrongswan/plugins/bliss/bliss_private_key.c
+147 -19
View File
@@ -14,6 +14,7 @@
*/
#include "bliss_private_key.h"
#include "bliss_param_set.h"
#include "bliss_fft.h"
#define _GNU_SOURCE
@@ -30,11 +31,10 @@ struct private_bliss_private_key_t {
*/
bliss_private_key_t public;
/**
* BLISS type
* BLISS signature parameter set
*/
u_int key_size;
bliss_param_set_t *set;
/**
* reference count
@@ -77,7 +77,7 @@ METHOD(private_key_t, decrypt, bool,
METHOD(private_key_t, get_keysize, int,
private_bliss_private_key_t *this)
{
return this->key_size;
return this->set->strength;
}
METHOD(private_key_t, get_public_key, public_key_t*,
@@ -209,16 +209,15 @@ static int compare(const int16_t *a, const int16_t *b)
/**
* Compute the Nk(S) norm of S = (s1, s2)
*/
static uint32_t nks_norm(int16_t *s1, int16_t *s2, int n)
static uint32_t nks_norm(int16_t *s1, int16_t *s2, int n, uint16_t kappa)
{
int16_t t[n], t_wrapped[n], max_kappa[n];
uint32_t nks = 0;
int i, j, kappa = 23;
int i, j;
for (i = 0; i < n; i++)
{
t[i] = wrapped_product(s1, s1, n, i) + wrapped_product(s2, s2, n, i);
DBG1(DBG_LIB, "t[%d] = %5d", i, t[i]);
}
for (i = 0; i < n; i++)
@@ -231,7 +230,6 @@ static uint32_t nks_norm(int16_t *s1, int16_t *s2, int n)
{
max_kappa[i] += t_wrapped[n - j];
}
DBG1(DBG_LIB, "max_kappa[%d] = %5d", i, max_kappa[i]);
}
qsort(max_kappa, n, sizeof(int16_t), (__compar_fn_t)compare);
@@ -283,9 +281,10 @@ bliss_private_key_t *bliss_private_key_gen(key_type_t type, va_list args)
int i;
uint32_t *a, *A, *F, *G, nks;
uint16_t q, n, l2_norm;
bliss_param_set_t *set;
bliss_fft_t *fft;
int16_t f[] = {
int16_t f_bliss1[] = {
0, 0, 0, 0, 1, 1, 0, -1, 0, 1,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, -1, 0, 0, 0, -1, 1, 0, 0,
@@ -345,7 +344,7 @@ bliss_private_key_t *bliss_private_key_gen(key_type_t type, va_list args)
0, -1
};
int16_t g[] = {
int16_t g_bliss1[] = {
-1, 0, 0, 0, 0, 0, 0, 0, 1, 0,
0, 0, 0, 0, 0, 0, 0, 1, 1, 0,
1, 0, 0, 0, 1, 0, -1, 0, 0, 0,
@@ -405,6 +404,125 @@ int16_t g[] = {
0, -1
};
int16_t f[] = {
0, -1, -1, 0, 0, 1, -1, -1, 0, 0,
0, 0, 1, 1, 0, 0, 0, 1, -1, 1,
-2, 1, 0, 0, -1, 0, 0, 0, -1, 0,
0, -1, 0, 1, 1, -1, 0, 1, -2, -1,
1, 0, 0, 0, 0, -1, -1, 0, 1, 2,
0, 0, 1, 0, -1, 0, 1, 1, 1, 0,
2, -1, 0, 0, 1, 0, 0, -1, 0, 0,
0, 0, 1, 0, 0, -1, 0, -1, -1, 0,
0, 0, 0, -1, -2, -1, -1, -1, 1, 0,
0, 1, 0, 1, -1, -1, 0, 0, 0, 1,
0, -1, 1, 1, 1, 0, -1, 0, 0, -1,
0, 1, -1, 1, -2, 0, 1, 1, -1, 0,
1, -1, -2, 0, 0, -1, 0, 0, 1, 0,
0, 0, 1, -1, 1, -2, 0, 0, -1, 1,
0, 0, -1, -1, 0, -1, 0, 0, 0, 0,
-1, 0, 1, -1, 1, 0, -1, 1, 0, 1,
1, 0, 0, -1, 0, 1, 1, 0, -1, 1,
1, 1, 2, 0, 0, 1, 0, 1, 0, 0,
-1, -1, 0, -2, 0, -1, 0, 0, -1, 1,
-1, -2, 0, 2, 0, -1, 2, 1, 0, 1,
1, 1, 1, 0, -1, 1, -1, 1, 1, -1,
0, 1, 1, 1, 0, 0, 0, 0, 1, 0,
-2, 0, 1, 1, 0, -1, -1, 1, 0, 1,
-2, 1, 1, -1, 1, 0, 0, 1, -1, -1,
1, 0, 1, 1, 1, -1, 0, -1, 0, 0,
0, 0, 1, 0, 0, -1, 0, 0, 0, 0,
1, -1, 2, -1, 1, 0, 0, 1, 0, 0,
0, -1, -1, 2, 1, 1, 0, -1, 0, -1,
0, 0, 0, 0, 0, 0, 0, -1, -1, 0,
0, 0, 0, -1, 0, 1, 1, 1, -1, 0,
-1, 1, 0, 1, 0, 0, 0, 1, 0, -1,
0, 0, 1, -2, 0, 0, 0, 0, -1, 1,
0, 1, 0, 0, 0, -1, 0, 1, 0, -1,
0, 1, -1, 0, 0, 1, 0, 0, 0, 0,
1, -1, 0, -2, 0, 0, 2, 0, -1, -1,
-1, 1, 1, 0, 1, -1, 1, 2, -1, 1,
-1, 0, 1, -2, 0, 0, -1, 2, -1, 0,
-1, 0, -1, 0, 1, -2, 0, 2, 0, 0,
1, -1, 1, -1, 1, 0, 1, 1, -1, 0,
0, 0, -1, -1, 0, 0, 0, -1, -2, 0,
0, 0, 1, -2, 0, 0, 1, 1, 0, -1,
0, 0, 0, 0, 0, 1, 0, 0, 0, 0,
0, 0, -1, 0, 0, 0, 1, 0, 0, 0,
1, 2, 0, -1, 0, 0, 1, 0, 0, 0,
-1, 0, 0, 1, -1, 0, -1, 0, 0, -1,
-1, -1, 2, 0, 0, 0, -1, 0, 2, 0,
-1, 0, -1, 0, -1, 1, 0, 0, 0, 0,
-1, 2, 0, 1, 0, 0, -1, 0, 0, 0,
1, -1, -1, 0, 0, -1, 0, -1, 1, -1,
1, 0, -1, -1, 1, 1, 0, 0, 0, 0,
0, 0, 0, 1, -1, 0, 0, 0, 0, 0,
0, 0
};
int16_t g[] = {
0, 2, 1, 0, -1, 1, 1, 1, -1, -1,
1, 2, 0, 0, 0, -1, 0, -1, 1, 0,
1, -1, 1, 0, 0, 0, -1, -1, 1, 0,
-1, 1, 0, 0, 0, 0, 0, 0, 0, 0,
0, 1, -1, -1, -1, -1, 0, 0, 0, 0,
0, -1, 0, -1, -2, 0, 0, 1, 0, -1,
-1, -1, -1, -1, 2, 1, -1, 0, -1, 0,
0, 1, 1, 0, 1, 0, 0, 0, -1, 1,
0, 1, 0, 0, 0, 1, 0, 0, 0, 0,
0, -1, 0, 0, 0, -1, 0, 0, 0, 0,
0, 1, -2, 1, 1, -1, 1, 1, 0, 1,
0, 0, 1, 0, 0, 0, -1, 0, 0, 0,
0, 0, 1, 0, 1, -1, 0, 0, 0, 1,
1, 1, 0, 0, 1, 0, 0, 1, 1, 1,
0, 0, 0, -1, 0, -1, -2, 1, 0, 1,
0, -1, -2, 1, 0, 0, -1, 0, 0, 0,
0, 0, 1, 0, 1, -1, 1, 1, -1, 0,
0, 0, 1, -1, 1, 1, -2, -1, 1, 0,
-2, 0, 0, 0, 1, 1, 2, 0, 2, 1,
1, 0, 1, 0, -1, 1, 0, 0, 0, -1,
-1, -1, 0, 0, -1, 1, 0, 1, 0, -1,
0, 0, 2, 1, 0, 0, 1, -2, -1, 0,
1, 0, -1, 1, -1, 0, 1, -1, -1, 1,
0, 0, -1, -1, -1, 0, 0, 1, -2, -1,
0, -1, 1, -1, 1, -1, 0, -1, -1, 1,
0, 1, -1, 0, 2, 1, -1, 0, -2, 0,
-1, 0, 0, 1, 0, -1, 1, 1, 0, 0,
0, -1, -2, 1, 0, 0, 2, 0, -1, 0,
1, 1, 0, -1, 0, 0, -1, -1, -1, 0,
0, -1, 0, 0, 0, 0, 1, 0, -1, -1,
1, -1, 0, 0, 1, 0, -1, 1, 0, 1,
0, 1, 1, 1, -1, 0, 0, 1, 0, -1,
0, -1, 0, 0, 0, -1, -1, 0, 0, 0,
-1, -1, 0, 1, 0, 0, 0, 1, 0, 0,
1, 1, -1, 0, 0, 0, -1, 0, 1, 1,
0, 1, 0, 1, 0, -1, -1, 0, 0, 0,
2, -1, 0, 0, -1, 1, -1, -2, -1, 0,
0, 1, 0, 1, 1, 0, 0, 0, -1, 2,
0, -1, 0, 0, 0, -1, -1, -1, 0, 1,
-2, 0, 0, 1, -1, 0, 0, 0, 1, 1,
1, 1, 0, -1, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, -2, 0, 0, 0,
2, 1, 0, 0, 0, 0, 1, 0, 0, -1,
1, -2, 0, 0, 1, 1, 1, 0, -2, 0,
-1, 0, 1, 2, 1, 0, 0, -2, 0, -1,
-1, 0, 1, 0, 1, 0, 1, 0, -1, -1,
2, 0, 1, -1, 0, 1, 0, 0, 0, -1,
1, 0, 1, -1, 0, 0, 0, 0, 0, -1,
0, 0, 1, -1, 0, 0, 1, 1, 0, 0,
0, 1, -1, 0, -1, -2, -1, 0, 0, -2,
0, -1, 0, 0, 0, -1, 1, 0, 1, 1,
-1, 0
};
while (TRUE)
{
switch (va_arg(args, builder_part_t))
@@ -421,18 +539,27 @@ int16_t g[] = {
}
/* Only BLISS-I and BLISS-IV are supported */
if (key_size != 1 && key_size != 4)
set = bliss_param_set_get_by_id(key_size);
if (!set)
{
DBG1(DBG_LIB, "BLISS parameter set %u not supported");
return NULL;
}
/* Some shortcuts for often used variables */
n = set->n;
q = set->q;
if (set->fft_params->n != n || set->fft_params->q != q)
{
DBG1(DBG_LIB, "FFT parameters do not match BLISS parameters");
return NULL;
}
this = bliss_private_key_create_empty();
this->key_size = key_size;
this->set = set;
/* We derive the public key from the private key using the FFT */
fft = bliss_fft_create(&bliss_fft_12289_512);
n = fft->get_size(fft);
q = fft->get_modulus(fft);
fft = bliss_fft_create(set->fft_params);
/* Compute 2g + 1 */
for (i = 0; i < n; i++)
@@ -442,8 +569,9 @@ int16_t g[] = {
g[0] += 1;
l2_norm = wrapped_product(f, f, n, 0) + wrapped_product(g, g, n, 0);
nks = nks_norm(f, g, n);
DBG1(DBG_LIB, "L2 norm of s1||s2: %d, Nk(S) = %u", l2_norm, nks);
nks = nks_norm(f, g, n, set->kappa);
DBG2(DBG_LIB, "L2 norm of s1||s2: %d, Nk(S): %u (%u max)",
l2_norm, nks, set->nks_max);
F = malloc(n * sizeof(uint32_t));
G = malloc(n * sizeof(uint32_t));
@@ -470,10 +598,10 @@ int16_t g[] = {
}
fft->transform(fft, A, a, TRUE);
DBG1(DBG_LIB, " i f g a F G A");
DBG4(DBG_LIB, " i f g a F G A");
for (i = 0; i < n; i++)
{
DBG1(DBG_LIB, "%4d %3d %3d %5u %5u %5u %5u",
DBG4(DBG_LIB, "%4d %3d %3d %5u %5u %5u %5u",
i, f[i], g[i], a[i], F[i], G[i], A[i]);
}