abc/GmSSL
1
0
Fork 0
mirror of https://github.com/guanzhi/GmSSL.git synced 2026-08-07 12:33:39 +08:00
Code Issues Packages Projects Releases Wiki Activity

Update SM9

Browse Source 
to be continue ...
This commit is contained in:
Zhi Guan
2018-09-19 11:56:07 +08:00
parent dd71250c2c
commit 9f4e184ac5
3 changed files with 391 additions and 197 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
crypto/sm9/sm9_lcl.h
View File

@@ -76,6 +76,16 @@
extern "C" { extern "C" {
#endif #endif
const BIGNUM *SM9_get0_prime(void);
const BIGNUM *SM9_get0_order(void);
const BIGNUM *SM9_get0_trace(void);
const BIGNUM *SM9_get0_generator2_x0(void);
const BIGNUM *SM9_get0_generator2_x1(void);
const BIGNUM *SM9_get0_generator2_y0(void);
const BIGNUM *SM9_get0_generator2_y1(void);
struct SM9PublicParameters_st { struct SM9PublicParameters_st {
ASN1_OBJECT *curve; ASN1_OBJECT *curve;
BIGNUM *p; BIGNUM *p;

117
crypto/sm9/sm9_params.c
View File

@@ -55,14 +55,29 @@
#include <openssl/err.h> #include <openssl/err.h>
#include "bn_lcl.h" #include "../bn/bn_lcl.h"
#include "internal/cryptlib.h" #include "internal/cryptlib.h"
#define BN_SM9_BN256_TOP (256+BN_BITS2-1)/BN_BITS2 #define BN_SM9_BN256_TOP (256+BN_BITS2-1)/BN_BITS2
#define BN_SM9_TRACE_TOP (66+BN_BITS2-1)/BN_BITS2 #define BN_SM9_TRACE_TOP (66+BN_BITS2-1)/BN_BITS2
#define BN_SM9_FINAL_EXPO_TOP (66+BN_BITS2-1)/BN_BITS2
#if BN_BITS2 == 64
static const BN_ULONG _sm9bn256v1_prime[BN_SM9_BN256_TOP] = {
0xE56F9B27E351457DULL, 0x21F2934B1A7AEEDBULL,
0xD603AB4FF58EC745ULL, 0xB640000002A3A6F1ULL,
};
static const BN_ULONG _sm9bn256v1_order[BN_SM9_BN256_TOP] = {
0xE56EE19CD69ECF25ULL, 0x49F2934B18EA8BEEULL,
0xD603AB4FF58EC744ULL, 0xB640000002A3A6F1ULL,
};
static const BN_ULONG _sm9bn256v1_trace[BN_SM9_TRACE_TOP] = {
0x400000000215D93EULL, 0x02ULL,
};
#if BN_BITS == 64
static const BN_ULONG _sm9bn256v1_x2[][BN_SM9_BN256_TOP] = { static const BN_ULONG _sm9bn256v1_x2[][BN_SM9_BN256_TOP] = {
{0xF9B7213BAF82D65BULL, 0xEE265948D19C17ABULL, {0xF9B7213BAF82D65BULL, 0xEE265948D19C17ABULL,
0xD2AAB97FD34EC120ULL, 0x3722755292130B08ULL}, 0xD2AAB97FD34EC120ULL, 0x3722755292130B08ULL},
@@ -77,11 +92,25 @@ static const BN_ULONG _sm9bn256v1_y2[][BN_SM9_BN256_TOP] = {
0x66BA0D262CBEE6EDULL, 0x17509B092E845C12ULL} 0x66BA0D262CBEE6EDULL, 0x17509B092E845C12ULL}
}; };
static const BN_ULONG _sm9bn256v1_trace[BN_SM9_TRACE_TOP] = { static const BN_ULONG _sm9bn256v1_final_expo[BN_SM9_FINAL_EXPO_TOP] = {
0x400000000215D93EULL, 0x02ULL, 0x400000000215D93EULL, 0x02ULL,
}; };
#elif BN_BITS2 == 32 #elif BN_BITS2 == 32
static const BN_ULONG _sm9bn256v1_prime[BN_SM9_BN256_TOP] = {
0xE351457D, 0xE56F9B27, 0x1A7AEEDB, 0x21F2934B,
0xF58EC745, 0xD603AB4F, 0x02A3A6F1, 0xB6400000,
};
static const BN_ULONG _sm9bn256v1_order[BN_SM9_BN256_TOP] = {
0xD69ECF25, 0xE56EE19C, 0x18EA8BEE, 0x49F2934B,
0xF58EC744, 0xD603AB4F, 0x02A3A6F1, 0xB6400000,
};
static const BN_ULONG _sm9bn256v1_trace[BN_SM9_TRACE_TOP] = {
0x0215D93E, 0x40000000, 0x02,
};
static const BN_ULONG _sm9bn256v1_x2[][BN_SM9_BN256_TOP] = { static const BN_ULONG _sm9bn256v1_x2[][BN_SM9_BN256_TOP] = {
{0xAF82D65B, 0xF9B7213B, 0xD19C17AB, 0xEE265948, {0xAF82D65B, 0xF9B7213B, 0xD19C17AB, 0xEE265948,
0xD34EC120, 0xD2AAB97F, 0x92130B08, 0x37227552}, 0xD34EC120, 0xD2AAB97F, 0x92130B08, 0x37227552},
@@ -96,14 +125,46 @@ static const BN_ULONG _sm9bn256v1_y2[][BN_SM9_BN256_TOP] = {
0x2CBEE6ED, 0x66BA0D26, 0x2E845C12, 0x17509B09} 0x2CBEE6ED, 0x66BA0D26, 0x2E845C12, 0x17509B09}
}; };
static const BN_ULONG _sm9bn256v1_trace[BN_SM9_TRACE_TOP] = { static const BN_ULONG _sm9bn256v1_final_expo[BN_SM9_FINAL_EXPO_TOP] = {
0x0215D93E, 0x40000000, 0x02, 0, 0, 0
}; };
#else #else
# error "unsupported BN_BITS2" # error "unsupported BN_BITS2"
#endif #endif
static const BIGNUM _bignum_sm9bn256v1_prime = {
(BN_ULONG *)_sm9bn256v1_prime,
BN_SM9_BN256_TOP,
BN_SM9_BN256_TOP,
0,
BN_FLG_STATIC_DATA
};
static const BIGNUM _bignum_sm9bn256v1_order = {
(BN_ULONG *)_sm9bn256v1_order,
BN_SM9_BN256_TOP,
BN_SM9_BN256_TOP,
0,
BN_FLG_STATIC_DATA
};
static const BIGNUM _bignum_sm9bn256v1_trace = {
(BN_ULONG *)_sm9bn256v1_trace,
BN_SM9_TRACE_TOP,
BN_SM9_TRACE_TOP,
0,
BN_FLG_STATIC_DATA
};
static const BIGNUM _bignum_sm9bn256v1_final_expo = {
(BN_ULONG *)_sm9bn256v1_final_expo,
BN_SM9_FINAL_EXPO_TOP,
BN_SM9_FINAL_EXPO_TOP,
0,
BN_FLG_STATIC_DATA
};
static const BIGNUM _bignum_sm9bn256v1_x20 = { static const BIGNUM _bignum_sm9bn256v1_x20 = {
(BN_ULONG *)_sm9bn256v1_x2[0], (BN_ULONG *)_sm9bn256v1_x2[0],
BN_SM9_BN256_TOP, BN_SM9_BN256_TOP,
@@ -136,22 +197,42 @@ static const BIGNUM _bignum_sm9bn256v1_y21 = {
BN_FLG_STATIC_DATA BN_FLG_STATIC_DATA
}; };
static const BIGNUM _bignum_sm9bn256v1_trace = { const BIGNUM *SM9_get0_generator2_x0(void)
(BN_ULONG *)_sm9bn256v1_trace, // IS THIS CORRECT?? {
BN_SM9_TRACE_TOP, return &_bignum_sm9bn256v1_x20;
BN_SM9_TRACE_TOP, }
0,
BN_FLG_STATIC_DATA
};
// we should not put it here const BIGNUM *SM9_get0_generator2_x1(void)
const point_t _sm9bn256v1_g2 = { {
{&_bignum_sm9bn256v1_x20, &_bignum_sm9bn256v1_x21}, return &_bignum_sm9bn256v1_x21;
{&_bignum_sm9bn256v1_y20, &_bignum_sm9bn256v1_y21}, }
{&_bignum_one, &_bignum_zero}
};
const BIGNUM *SM9_get0_generator2_y0(void)
{
return &_bignum_sm9bn256v1_y20;
}
const BIGNUM *SM9_get0_generator2_y1(void)
{
return &_bignum_sm9bn256v1_y21;
}
const BIGNUM *SM9_get0_prime(void)
{
return &_bignum_sm9bn256v1_prime;
}
const BIGNUM *SM9_get0_order(void)
{
return &_bignum_sm9bn256v1_order;
}
const BIGNUM *SM9_get0_trace(void)
{
return &_bignum_sm9bn256v1_trace;
}
const BIGNUM *SM9_get0_final_exponent(void)
{
return &_bignum_sm9bn256v1_final_expo;
}

461
crypto/sm9/sm9_rate.c
View File

@@ -53,6 +53,7 @@
#include <openssl/bn.h> #include <openssl/bn.h>
#include <openssl/ec.h> #include <openssl/ec.h>
#include <openssl/err.h> #include <openssl/err.h>
#include "sm9_lcl.h"
typedef BIGNUM *fp2_t[2]; typedef BIGNUM *fp2_t[2];
typedef fp2_t fp4_t[2]; typedef fp2_t fp4_t[2];
@@ -97,13 +98,13 @@ static void fp2_clear_cleanup(fp2_t a)
a[1] = NULL; a[1] = NULL;
} }
static int fp2_is_zero(fp2_t a) static int fp2_is_zero(const fp2_t a)
{ {
return BN_is_zero(a[0]) return BN_is_zero(a[0])
&& BN_is_zero(a[1]); && BN_is_zero(a[1]);
} }
static int fp2_is_one(fp2_t a) static int fp2_is_one(const fp2_t a)
{ {
return BN_is_one(a[0]) return BN_is_one(a[0])
&& BN_is_zero(a[1]); && BN_is_zero(a[1]);
@@ -142,7 +143,7 @@ static int fp2_set_u(fp2_t r)
static int fp2_set_bn(fp2_t r, const BIGNUM *a) static int fp2_set_bn(fp2_t r, const BIGNUM *a)
{ {
BN_zero(r[1]); BN_zero(r[1]);
return BN_copy(r[0], a); return BN_copy(r[0], a) != NULL;
} }
static int fp2_set_word(fp2_t r, unsigned long a) static int fp2_set_word(fp2_t r, unsigned long a)
@@ -156,6 +157,20 @@ static int fp2_equ(const fp2_t a, const fp2_t b)
return !BN_cmp(a[0], b[0]) && !BN_cmp(a[1], b[1]); return !BN_cmp(a[0], b[0]) && !BN_cmp(a[1], b[1]);
} }
static int fp2_add_word(fp2_t r, const fp2_t a, unsigned long b, const BIGNUM *p, BN_CTX *ctx)
{
BIGNUM *w = NULL;
if (!(w = BN_CTX_get(ctx))
|| !BN_set_word(w, b)
|| !BN_mod_add(r[0], a[0], w, p, ctx)
|| !BN_copy(r[1], a[1])) {
BN_free(w);
return 0;
}
BN_free(w);
return 1;
}
static int fp2_add(fp2_t r, const fp2_t a, const fp2_t b, const BIGNUM *p, BN_CTX *ctx) static int fp2_add(fp2_t r, const fp2_t a, const fp2_t b, const BIGNUM *p, BN_CTX *ctx)
{ {
return BN_mod_add(r[0], a[0], b[0], p, ctx) return BN_mod_add(r[0], a[0], b[0], p, ctx)
@@ -168,6 +183,14 @@ static int fp2_dbl(fp2_t r, const fp2_t a, const BIGNUM *p, BN_CTX *ctx)
&& BN_mod_add(r[1], a[1], a[1], p, ctx); && BN_mod_add(r[1], a[1], a[1], p, ctx);
} }
static int fp2_tri(fp2_t r, const fp2_t a, const BIGNUM *p, BN_CTX *ctx)
{
return BN_mod_add(r[0], a[0], a[0], p, ctx)
&& BN_mod_add(r[0], r[0], a[0], p, ctx)
&& BN_mod_add(r[1], a[1], a[1], p, ctx)
&& BN_mod_add(r[1], r[1], a[1], p, ctx);
}
static int fp2_sub(fp2_t r, const fp2_t a, const fp2_t b, const BIGNUM *p, BN_CTX *ctx) static int fp2_sub(fp2_t r, const fp2_t a, const fp2_t b, const BIGNUM *p, BN_CTX *ctx)
{ {
return BN_mod_sub(r[0], a[0], b[0], p, ctx) return BN_mod_sub(r[0], a[0], b[0], p, ctx)
@@ -180,19 +203,13 @@ static int fp2_neg(fp2_t r, const fp2_t a, const BIGNUM *p)
&& BN_sub(r[1], p, a[1]); && BN_sub(r[1], p, a[1]);
} }
static void fp2_conjugate(fp2_t r, const fp2_t a, const BIGNUM *p)
{
return fp2_copy(r[0], a[0])
&& fp2_neg(r[1], a[1], p);
}
static int fp2_mul(fp2_t r, const fp2_t a, const fp2_t b, const BIGNUM *p, BN_CTX *ctx) static int fp2_mul(fp2_t r, const fp2_t a, const fp2_t b, const BIGNUM *p, BN_CTX *ctx)
{ {
BIGNUM *t = NULL; BIGNUM *t = NULL;
if (!(t = BN_CTX_get(ctx)) if (!(t = BN_CTX_get(ctx))
/* r0 = a0 * b0 - 2 * a1 * b1 */ /* r0 = a0 * b0 - 2 * a1 * b1 */
|| !BN_mod_mul(r[0], a[0], b[0], p, ctx) || !BN_mod_mul(r[0], a[0], b[0], p, ctx)
|| !BN_mod_sqr(t, a[1], b[1], p, ctx) || !BN_mod_mul(t, a[1], b[1], p, ctx)
|| !BN_mod_add(t, t, t, p, ctx) || !BN_mod_add(t, t, t, p, ctx)
|| !BN_mod_sub(r[0], r[0], t, p, ctx) || !BN_mod_sub(r[0], r[0], t, p, ctx)
@@ -207,7 +224,7 @@ static int fp2_mul(fp2_t r, const fp2_t a, const fp2_t b, const BIGNUM *p, BN_CT
return 1; return 1;
} }
static int fp2_mul_u(fp2_t r, fp2_t a, fp2_t b, const BIGNUM *p, BN_CTX *ctx) static int fp2_mul_u(fp2_t r, const fp2_t a, const fp2_t b, const BIGNUM *p, BN_CTX *ctx)
{ {
BIGNUM *t = NULL; BIGNUM *t = NULL;
if (!(t = BN_CTX_get(ctx)) if (!(t = BN_CTX_get(ctx))
@@ -293,6 +310,8 @@ static int fp2_inv(fp2_t r, const fp2_t a, const BIGNUM *p, BN_CTX *ctx)
} }
} else { } else {
BIGNUM *k = NULL;
BIGNUM *t = NULL;
if (!(k = BN_CTX_get(ctx)) if (!(k = BN_CTX_get(ctx))
|| !(t = BN_CTX_get(ctx)) || !(t = BN_CTX_get(ctx))
@@ -328,11 +347,12 @@ static int fp4_init(fp4_t a, BN_CTX *ctx)
{ {
int r; int r;
r = fp2_init(a[0], ctx); r = fp2_init(a[0], ctx);
r &&= fp2_init(a[1], ctx); r &= fp2_init(a[1], ctx);
if (!r) { if (!r) {
fp2_cleanup(a[0]); fp2_cleanup(a[0]);
fp2_cleanup(a[1]); fp2_cleanup(a[1]);
} }
return r;
} }
static void fp4_cleanup(fp4_t a) static void fp4_cleanup(fp4_t a)
@@ -368,7 +388,7 @@ static void fp4_set_zero(fp4_t r)
static int fp4_set_one(fp4_t r) static int fp4_set_one(fp4_t r)
{ {
fp2_set_zero(r[1]); fp2_set_zero(r[1]);
return fd2_set_one(r[0]); return fp2_set_one(r[0]);
} }
static int fp4_set_bn(fp4_t r, const BIGNUM *a) static int fp4_set_bn(fp4_t r, const BIGNUM *a)
@@ -417,6 +437,7 @@ static int fp4_equ(const fp4_t a, const fp4_t b)
{ {
return fp2_equ(a[0], b[0]) return fp2_equ(a[0], b[0])
&& fp2_equ(a[1], b[1]); && fp2_equ(a[1], b[1]);
}
static int fp4_add(fp4_t r, const fp4_t a, const fp4_t b, const BIGNUM *p, BN_CTX *ctx) static int fp4_add(fp4_t r, const fp4_t a, const fp4_t b, const BIGNUM *p, BN_CTX *ctx)
{ {
@@ -436,10 +457,10 @@ static int fp4_sub(fp4_t r, const fp4_t a, const fp4_t b, const BIGNUM *p, BN_CT
&& fp2_sub(r[1], a[1], b[1], p, ctx); && fp2_sub(r[1], a[1], b[1], p, ctx);
} }
static int fp4_neg(fp4_t r, const fp4_t a, const BIGNUM *p, BN_CTX *ctx) static int fp4_neg(fp4_t r, const fp4_t a, const BIGNUM *p)
{ {
return fp2_neg(r[0], a[0], p, ctx) return fp2_neg(r[0], a[0], p)
&&fp2_neg(r[1], a[1], p, ctx); &&fp2_neg(r[1], a[1], p);
} }
static int fp4_mul(fp4_t r, const fp4_t a, const fp4_t b, const BIGNUM *p, BN_CTX *ctx) static int fp4_mul(fp4_t r, const fp4_t a, const fp4_t b, const BIGNUM *p, BN_CTX *ctx)
@@ -505,17 +526,17 @@ static int fp4_sqr_v(fp4_t r, const fp4_t a, const BIGNUM *p, BN_CTX *ctx)
fp2_t t; fp2_t t;
if (!fp2_init(t, ctx) if (!fp2_init(t, ctx)
/* r[0] = 2 * (a[0] * a[1]) */ /* r[0] = 2 * (a[0] * a[1]) */
|| !fp2_mul_u(t0, a[0], a[1], p, ctx) || !fp2_mul_u(t, a[0], a[1], p, ctx)
|| !fp2_dbl(r[0], t0, p, ctx) || !fp2_dbl(r[0], t, p, ctx)
/* r[1] = a[0]^2 + a[1]^2 * u */ /* r[1] = a[0]^2 + a[1]^2 * u */
|| !fp2_sqr(r[1], a[0], p, ctx) || !fp2_sqr(r[1], a[0], p, ctx)
|| !fp2_sqr_u(t, a[1], p, ctx) || !fp2_sqr_u(t, a[1], p, ctx)
|| !fp2_add(r[1], r[1], t, p, ctx)) { || !fp2_add(r[1], r[1], t, p, ctx)) {
fp_cleanup(t); fp2_cleanup(t);
return 0; return 0;
} }
fp_cleanup(t); fp2_cleanup(t);
return 1; return 1;
} }
@@ -531,7 +552,7 @@ static int fp4_inv(fp4_t r, const fp4_t a, const BIGNUM *p, BN_CTX *ctx)
/* r[0] = -(a[0] * k) */ /* r[0] = -(a[0] * k) */
|| !fp2_mul(r[0], a[0], k, p, ctx) || !fp2_mul(r[0], a[0], k, p, ctx)
|| !fp2_neg(r[0], r[0], p, ctx) || !fp2_neg(r[0], r[0], p)
/* r[1] = a[1] * k */ /* r[1] = a[1] * k */
|| !fp2_mul(r[1], a[1], k, p, ctx)) { || !fp2_mul(r[1], a[1], k, p, ctx)) {
@@ -546,8 +567,8 @@ static int fp12_init(fp12_t a, BN_CTX *ctx)
{ {
int r; int r;
r = fp4_init(a[0], ctx); r = fp4_init(a[0], ctx);
r &&= fp4_init(a[1], ctx); r &= fp4_init(a[1], ctx);
r &&= fp4_init(a[2], ctx); r &= fp4_init(a[2], ctx);
if (!r) { if (!r) {
fp4_cleanup(a[0]); fp4_cleanup(a[0]);
fp4_cleanup(a[1]); fp4_cleanup(a[1]);
@@ -572,16 +593,16 @@ static void fp12_clear_cleanup(fp12_t a)
static int fp12_is_zero(const fp12_t a) static int fp12_is_zero(const fp12_t a)
{ {
return fp12_is_zero(a[0]) return fp4_is_zero(a[0])
&& fp12_is_zero(a[1]) && fp4_is_zero(a[1])
&& fp12_is_zero(a[2]); && fp4_is_zero(a[2]);
} }
static int fp12_is_one(const fp12_t a) static int fp12_is_one(const fp12_t a)
{ {
return fp12_is_one(a[0]) return fp4_is_one(a[0])
&& fp12_is_zero(a[1]) && fp4_is_zero(a[1])
&& fp12_is_zero(a[2]); && fp4_is_zero(a[2]);
} }
static void fp12_set_zero(fp12_t r) static void fp12_set_zero(fp12_t r)
@@ -703,11 +724,11 @@ static int fp12_sub(fp12_t r, const fp12_t a, const fp12_t b, const BIGNUM *p, B
&& fp4_sub(r[2], a[2], b[2], p, ctx); && fp4_sub(r[2], a[2], b[2], p, ctx);
} }
static int fp12_neg(fp12_t r, const fp12_t a, const BIGNUM *p, BN_CTX *ctx) static int fp12_neg(fp12_t r, const fp12_t a, const BIGNUM *p)
{ {
return fp4_neg(r[0], a[0], p, ctx) return fp4_neg(r[0], a[0], p)
&& fp4_neg(r[1], a[1], p, ctx) && fp4_neg(r[1], a[1], p)
&& fp4_neg(r[2], a[2], p, ctx); && fp4_neg(r[2], a[2], p);
} }
static int fp12_mul(fp12_t r, const fp12_t a, const fp12_t b, const BIGNUM *p, BN_CTX *ctx) static int fp12_mul(fp12_t r, const fp12_t a, const fp12_t b, const BIGNUM *p, BN_CTX *ctx)
@@ -748,21 +769,21 @@ static int fp12_sqr(fp12_t r, const fp12_t a, const BIGNUM *p, BN_CTX *ctx)
if (!(fp4_init(t, ctx)) if (!(fp4_init(t, ctx))
/* r0 = a0^2 + 2*a1*a2*v */ /* r0 = a0^2 + 2*a1*a2*v */
|| !fp4_sqr(r[0], a[0], p, ctx) || !fp4_sqr(r[0], a[0], p, ctx)
|| ! fp4_mul_v(t, a[1], a[2], p, ctx) || !fp4_mul_v(t, a[1], a[2], p, ctx)
|| ! fp4_dbl(t, t, p, ctx) || !fp4_dbl(t, t, p, ctx)
|| ! fp4_add(r[0], t, p, ctx) || !fp4_add(r[0], r[0], t, p, ctx)
/* r1 = 2*a0*a1 + a^2 * v */ /* r1 = 2*a0*a1 + a^2 * v */
|| ! fp4_mul(r[1], a[0], a[1], p, ctx) || !fp4_mul(r[1], a[0], a[1], p, ctx)
|| ! fp4_dbl(r[1], r[1], p, ctx) || !fp4_dbl(r[1], r[1], p, ctx)
|| ! fp4_sqr_v(t, a[2], p, ctx) || !fp4_sqr_v(t, a[2], p, ctx)
|| ! fp4_add(r[1], r[1], t, p, ctx) || !fp4_add(r[1], r[1], t, p, ctx)
/* r2 = 2*a0*a2 + a1^2*/ /* r2 = 2*a0*a2 + a1^2*/
|| ! fp4_mul(r[2], a[0], a[2], p, ctx) || !fp4_mul(r[2], a[0], a[2], p, ctx)
|| ! fp4_dbl(r[2], r[2], p, ctx) || !fp4_dbl(r[2], r[2], p, ctx)
|| ! fp4_sqr(t, a[1], p, ctx) || !fp4_sqr(t, a[1], p, ctx)
|| ! fp4_add(r[2], t, p, ctx)) { || !fp4_add(r[2], r[2], t, p, ctx)) {
fp4_cleanup(t); fp4_cleanup(t);
return 0; return 0;
@@ -775,6 +796,10 @@ static int fp12_inv(fp12_t r, const fp12_t a, const BIGNUM *p, BN_CTX *ctx)
{ {
if (fp4_is_zero(a[2])) { if (fp4_is_zero(a[2])) {
fp4_t k; fp4_t k;
fp4_t t;
if (!fp4_init(t, ctx)) {
return 0;
}
if (!(fp4_init(k, ctx)) if (!(fp4_init(k, ctx))
/* k = (a0^3 + a1^3 * v)^-1 */ /* k = (a0^3 + a1^3 * v)^-1 */
|| !fp4_sqr(k, a[0], p, ctx) || !fp4_sqr(k, a[0], p, ctx)
@@ -791,16 +816,18 @@ static int fp12_inv(fp12_t r, const fp12_t a, const BIGNUM *p, BN_CTX *ctx)
/* r1 = -(a0 * a1 * k) */ /* r1 = -(a0 * a1 * k) */
|| !fp4_mul(r[0], a[0], a[1], p, ctx) || !fp4_mul(r[0], a[0], a[1], p, ctx)
|| !fp4_mul(r[0], r[0], k, p, ctx) || !fp4_mul(r[0], r[0], k, p, ctx)
|| fp4_neg(r[0], r[0], p, ctx) || fp4_neg(r[0], r[0], p)
/* r2 = a1^2 * k */ /* r2 = a1^2 * k */
|| !fp4_sqr(r[2], a[1], p, ctx) || !fp4_sqr(r[2], a[1], p, ctx)
|| !fp4_mul(r[2], r[2], k, p, ctx)) { || !fp4_mul(r[2], r[2], k, p, ctx)) {
fp4_cleanup(k); fp4_cleanup(k);
fp4_cleanup(t);
return 0; return 0;
} }
fp4_cleanup(k); fp4_cleanup(k);
fp4_cleanup(t);
return 1; return 1;
} else { } else {
@@ -812,6 +839,8 @@ static int fp12_inv(fp12_t r, const fp12_t a, const BIGNUM *p, BN_CTX *ctx)
|| !(fp4_init(t2, ctx)) || !(fp4_init(t2, ctx))
|| !(fp4_init(t3, ctx)) || !(fp4_init(t3, ctx))
// CHECK THIS!!!!!
/* t0 = a1^2 - a0 * a1 */ /* t0 = a1^2 - a0 * a1 */
|| !fp4_sqr(t0, a[1], p, ctx) || !fp4_sqr(t0, a[1], p, ctx)
|| !fp4_mul(t1, a[0], a[2], p, ctx) || !fp4_mul(t1, a[0], a[2], p, ctx)
@@ -829,8 +858,8 @@ static int fp12_inv(fp12_t r, const fp12_t a, const BIGNUM *p, BN_CTX *ctx)
/* t3 = a2 * (t1^2 - t0 * t2)^-1 */ /* t3 = a2 * (t1^2 - t0 * t2)^-1 */
|| !fp4_sqr(t1, t1, p, ctx) || !fp4_sqr(t1, t1, p, ctx)
|| !fp4_mul(t4, t0, t2, p, ctx) || !fp4_mul(r[0], t0, t2, p, ctx)
|| !fp4_sub(t1, t1, t5, p, ctx) || !fp4_sub(t1, t1, r[0], p, ctx)
|| !fp4_mul(t3, a[2], t3, p, ctx) || !fp4_mul(t3, a[2], t3, p, ctx)
|| !fp4_inv(t3, t3, p, ctx) || !fp4_inv(t3, t3, p, ctx)
@@ -861,9 +890,15 @@ static int fp12_inv(fp12_t r, const fp12_t a, const BIGNUM *p, BN_CTX *ctx)
return 1; return 1;
} }
static int fp12_div(fp12_t r, const fp12_t a, const fp12_t b, const BIGNUM *p, BN_CTX *ctx)
{
return fp12_inv(r, b, p, ctx)
&& fp12_mul(r, a, r, p, ctx);
}
static int fp12_pow(fp12_t r, const fp12_t a, const BIGNUM *k, const BIGNUM *p, BN_CTX *ctx) static int fp12_pow(fp12_t r, const fp12_t a, const BIGNUM *k, const BIGNUM *p, BN_CTX *ctx)
{ {
int n; int n, i;
if (BN_is_zero(k)) { if (BN_is_zero(k)) {
return fp12_set_one(r); return fp12_set_one(r);
@@ -894,9 +929,9 @@ static int point_init(point_t P, BN_CTX *ctx)
{ {
int r; int r;
r = fp2_init(P.X, ctx); r = fp2_init(P.X, ctx);
r &&= fp2_init(P.Y, ctx); r &= fp2_init(P.Y, ctx);
r &&= fp2_init(P.Z, ctx); r &= fp2_init(P.Z, ctx);
r &&= fp2_set_one(P.Y, ctx); r &= fp2_set_one(P.Y);
if (!r) { if (!r) {
fp2_cleanup(P.X); fp2_cleanup(P.X);
fp2_cleanup(P.Y); fp2_cleanup(P.Y);
@@ -915,6 +950,13 @@ static void point_cleanup(point_t P)
fp2_cleanup(P.Z); fp2_cleanup(P.Z);
} }
static int point_copy(point_t R, const point_t P)
{
return fp2_copy(R.X, P.X)
&& fp2_copy(R.Y, P.Y)
&& fp2_copy(R.Z, P.Z);
}
static int point_set_infinity(point_t P) static int point_set_infinity(point_t P)
{ {
fp2_set_zero(P.X); fp2_set_zero(P.X);
@@ -936,19 +978,41 @@ static int point_equ(const point_t P, const point_t Q)
&& fp2_equ(P.Z, Q.Z); && fp2_equ(P.Z, Q.Z);
} }
static int point_is_on_curve(point_t P, BN_CTX *ctx) static int point_set_affine_coordinates(point_t P, const fp2_t x, const fp2_t y)
{
return fp2_copy(P.X, x)
&& fp2_copy(P.Y, y)
&& fp2_set_one(P.Z);
}
static int point_set_affine_coordinates_bignums(point_t P,
const BIGNUM *x0, const BIGNUM *x1, const BIGNUM *y0, const BIGNUM *y1)
{
return fp2_set(P.X, x0, x1)
&& fp2_set(P.Y, y0, y1)
&& fp2_set_one(P.Z);
}
static int point_get_affine_coordinates(const point_t P, fp2_t x, fp2_t y)
{
return fp2_copy(x, P.X)
&& fp2_copy(y, P.Y)
&& fp2_is_one(P.Z);
}
static int point_is_on_curve(point_t P, const BIGNUM *p, BN_CTX *ctx)
{ {
int r; int r;
fp2_t x, y, t; fp2_t x, y, t;
r = fp2_init(x, ctx); r = fp2_init(x, ctx);
r &&= fp2_init(y, ctx); r &= fp2_init(y, ctx);
r &&= fp2_init(t, ctx); r &= fp2_init(t, ctx);
if (!r) { if (!r) {
goto end; goto end;
} }
if (!point_get_affine_coordinates(P, x, y, p, ctx) if (!point_get_affine_coordinates(P, x, y)
|| !fp2_sqr(t, x, p, ctx) || !fp2_sqr(t, x, p, ctx)
|| !fp2_mul(x, x, t, p, ctx) || !fp2_mul(x, x, t, p, ctx)
|| !fp2_add_word(x, x, 5, p, ctx) || !fp2_add_word(x, x, 5, p, ctx)
@@ -965,33 +1029,18 @@ end:
return r; return r;
} }
static int point_set_affine_coordinates(point_t P, const fp2_t x, const fp2_t y)
{
return fp2_copy(P.X, x)
&& fp2_copy(P.Y, y)
&& fp2_set_one(P.Z);
}
static int point_get_affine_coordinates(const point_t P, fp2_t x, fp2_t y)
{
return fp2_copy(x, P.X)
&& fp2_copy(y, P.y)
&& fp2_is_one(P.Z);
}
static int point_dbl(point_t R, const point_t P, const BIGNUM *p, BN_CTX *ctx) static int point_dbl(point_t R, const point_t P, const BIGNUM *p, BN_CTX *ctx)
{ {
int r; int r;
fp2_t x3, y3, x1, y1, lambda, t; fp2_t x3, y3, x1, y1, lambda, t;
r = 1; r = 1;
r &&= fp2_init(x1, ctx); r &= fp2_init(x1, ctx);
r &&= fp2_init(y1, ctx); r &= fp2_init(y1, ctx);
r &&= fp2_init(x3, ctx); r &= fp2_init(x3, ctx);
r &&= fp2_init(y3, ctx); r &= fp2_init(y3, ctx);
r &&= fp2_init(t0, ctx); r &= fp2_init(lambda, ctx);
r &&= fp2_init(t1, ctx); r &= fp2_init(t, ctx);
r &&= fp2_init(lambda, ctx);
if (!r) { if (!r) {
goto end; goto end;
} }
@@ -1027,7 +1076,7 @@ end:
fp2_cleanup(x1); fp2_cleanup(x1);
fp2_cleanup(y1); fp2_cleanup(y1);
fp2_cleanup(x3); fp2_cleanup(x3);
fp2_clenaup(y3); fp2_cleanup(y3);
fp2_cleanup(lambda); fp2_cleanup(lambda);
fp2_cleanup(t); fp2_cleanup(t);
return r; return r;
@@ -1043,8 +1092,7 @@ static int point_add(point_t R, const point_t P, const point_t Q, const BIGNUM *
fp2_t x3; fp2_t x3;
fp2_t y3; fp2_t y3;
fp2_t lambda; fp2_t lambda;
fp2_t t0; fp2_t t;
fp2_t t1;
if (point_is_at_infinity(P)) { if (point_is_at_infinity(P)) {
return point_copy(R, Q); return point_copy(R, Q);
@@ -1060,14 +1108,14 @@ static int point_add(point_t R, const point_t P, const point_t Q, const BIGNUM *
} }
r = 1; r = 1;
r &&= fp2_init(x1, ctx); r &= fp2_init(x1, ctx);
r &&= fp2_init(y1, ctx); r &= fp2_init(y1, ctx);
r &&= fp2_init(x2, ctx); r &= fp2_init(x2, ctx);
r &&= fp2_init(y2, ctx); r &= fp2_init(y2, ctx);
r &&= fp2_init(x3, ctx); r &= fp2_init(x3, ctx);
r &&= fp2_init(y3, ctx); r &= fp2_init(y3, ctx);
r &&= fp2_init(lambda, ctx); r &= fp2_init(lambda, ctx);
r &&= fp2_init(t, ctx); r &= fp2_init(t, ctx);
if (!r) { if (!r) {
goto end; goto end;
} }
@@ -1116,10 +1164,10 @@ end:
return r; return r;
} }
static int point_neg(point_t R, const point_t P) static int point_neg(point_t R, const point_t P, const BIGNUM *p)
{ {
return fp2_copy(R.X, P.X) return fp2_copy(R.X, P.X)
&& fp2_neg(R.y, P.y) && fp2_neg(R.Y, P.Y, p)
&& fp2_copy(R.Z, P.Z); && fp2_copy(R.Z, P.Z);
} }
@@ -1127,7 +1175,7 @@ static int point_sub(point_t R, const point_t P, const point_t Q, const BIGNUM *
{ {
point_t T; point_t T;
if (!point_init(T, ctx) if (!point_init(T, ctx)
|| !point_neg(T, Q) || !point_neg(T, Q, p)
|| !point_add(R, P, T, p, ctx)) { || !point_add(R, P, T, p, ctx)) {
point_cleanup(T); point_cleanup(T);
return 0; return 0;
@@ -1136,12 +1184,10 @@ static int point_sub(point_t R, const point_t P, const point_t Q, const BIGNUM *
return 1; return 1;
} }
static void point_mul_generator(point_t R, const BIGNUM *k, const BIGNUM *p, BN_CTX *ctx)
{
}
static int point_mul(point_t R, const BIGNUM *k, const point_t P, const BIGNUM *p, BN_CTX *ctx) static int point_mul(point_t R, const BIGNUM *k, const point_t P, const BIGNUM *p, BN_CTX *ctx)
{ {
int i, n;
if (BN_is_zero(k)) { if (BN_is_zero(k)) {
return point_set_infinity(R); return point_set_infinity(R);
} }
@@ -1164,6 +1210,20 @@ static int point_mul(point_t R, const BIGNUM *k, const point_t P, const BIGNUM *
return 1; return 1;
} }
static int point_mul_generator(point_t R, const BIGNUM *k, const BIGNUM *p, BN_CTX *ctx)
{
point_t G;
point_init(G, ctx);
point_set_affine_coordinates_bignums(G,
SM9_get0_generator2_x0,
SM9_get0_generator2_x1,
SM9_get0_generator2_y0,
SM9_get0_generator2_y1);
return point_mul(R, k, G, p, ctx);
}
static int eval_tangent(fp12_t r, const fp12_t xP, const fp12_t yP, static int eval_tangent(fp12_t r, const fp12_t xP, const fp12_t yP,
const BIGNUM *xQ, const BIGNUM *yQ, const BIGNUM *xQ, const BIGNUM *yQ,
const BIGNUM *p, BN_CTX *ctx) const BIGNUM *p, BN_CTX *ctx)
@@ -1172,10 +1232,10 @@ static int eval_tangent(fp12_t r, const fp12_t xP, const fp12_t yP,
fp12_t x, y, lambda, t; fp12_t x, y, lambda, t;
ret = 1; ret = 1;
ret &&= fp12_init(x, ctx); ret &= fp12_init(x, ctx);
ret &&= fp12_init(y, ctx); ret &= fp12_init(y, ctx);
ret &&= fp12_init(lambda, ctx); ret &= fp12_init(lambda, ctx);
ret &&= fp12_init(t, ctx); ret &= fp12_init(t, ctx);
if (!ret) { if (!ret) {
goto end; goto end;
} }
@@ -1195,7 +1255,7 @@ static int eval_tangent(fp12_t r, const fp12_t xP, const fp12_t yP,
|| !fp12_add(r, r, yP, p, ctx)) { || !fp12_add(r, r, yP, p, ctx)) {
goto end; goto end;
} }
ret = 1 ret = 1;
end: end:
fp12_cleanup(x); fp12_cleanup(x);
@@ -1214,10 +1274,10 @@ static int eval_line(fp12_t r, const fp12_t xT, const fp12_t yT,
fp12_t x, y, lambda, t; fp12_t x, y, lambda, t;
ret = 1; ret = 1;
ret &&= fp12_init(x, ctx); ret &= fp12_init(x, ctx);
ret &&= fp12_init(y, ctx); ret &= fp12_init(y, ctx);
ret &&= fp12_init(lambda, ctx); ret &= fp12_init(lambda, ctx);
ret &&= fp12_init(t, ctx); ret &= fp12_init(t, ctx);
if (!ret) { if (!ret) {
goto end; goto end;
} }
@@ -1246,53 +1306,101 @@ end:
return ret; return ret;
} }
static void frob(fp12_t xR, fp12_t yR, const point_t P, const BIGNUM *p, BN_CTX *ctx) static int point_get_ext_affine_coordinates(const point_t *P, fp12_t x, fp12_t y, const BIGNUM *p, BN_CTX *ctx)
{ {
fp2_t x, y; int r;
fp12_t t0, t1; fp2_t xP;
fp2_t yP;
fp12_t wem2;
fp12_t wem3;
point_get_affine_coordinates(x, y, R); r = 1;
r &= fp2_init(xP, ctx);
r &= fp2_init(yP, ctx);
r &= fp12_init(wem2, ctx);
r &= fp12_init(wem2, ctx);
if (!r) {
goto end;
}
fp2_conjugate(x); r = 0;
fp2_conjugate(y); if (!point_get_affine_coordinates(P, xP, yP)
fp12_set_fp(t0, x); || !fp12_set_fp2(x, xP)
fp12_set_fp(t1, y); || !fp12_set_fp2(y, yP)
fp12_mul(xR, t0, w2p);
fp12_mul(yR, t1, w3p); /* x = x * w^-2 */
|| !fp12_set_w2(wem2)
|| !fp12_inv(wem2, wem2, p, ctx)
|| !fp12_mul(x, x, wem2, p, ctx)
/* y = y * w^-3 */
|| !fp12_set_v(wem3)
|| !fp12_inv(wem3, wem3, p, ctx)
|| !fp12_mul(y, y, wem3, p, ctx)) {
goto end;
}
r = 1;
end:
fp2_cleanup(xP);
fp2_cleanup(yP);
fp12_cleanup(wem2);
fp12_cleanup(wem3);
return r;
} }
static void frob_twice(fp12_t xR, fp12_t yR, const point_t P, const BIGNUM *p, BN_CTX *ctx) static int point_frob(const point_t P, fp12_t x, fp12_t y, const BIGNUM *p, BN_CTX *ctx)
{ {
fp2_t x, y; return point_get_ext_affine_coordinates(P, x, y, p, ctx)
fp12_t t0, t1; && fp12_pow(x, x, p, p, ctx)
&& fp12_pow(y, y, p, p, ctx);
point_get_affine_coordinates(x, y, R);
} }
static void final_expo(fp12_t r, const fp12_t a, const BIGNUM *p, BN_CTX *ctx) static int point_frob_twice(const point_t P, fp12_t x, fp12_t y, const BIGNUM *p, BN_CTX *ctx)
{ {
fp12_copy(r, a); return point_frob(P, x, y, p, ctx)
for (i = 0; i < sizeof(ebits); i++) { && fp12_pow(x, x, p, p, ctx)
fp12_sqr_to(r); && fp12_pow(y, y, p, p, ctx);
if (ebits[i]) { }
fp12_mul_to(r, a);
static int final_expo(fp12_t r, const fp12_t a, const BIGNUM *k, const BIGNUM *p, BN_CTX *ctx)
{
int i, n;
if (!fp12_copy(r, a)) {
return 0;
}
n = BN_num_bits(k);
for (i = n - 2; i >= 0; i--) {
if (!fp12_sqr(r, r, p, ctx)) {
return 0;
}
if (BN_is_bit_set(k, i)) {
if (!fp12_mul(r, r, a, p, ctx)) {
return 0;
}
} }
} }
return 1;
} }
static void rate(fp12_t r, const point_t Q, const fp_t xP, const fp_t yP) static int rate(fp12_t r, const point_t Q, const BIGNUM *xP, const BIGNUM *yP,
const BIGNUM *p, BN_CTX *ctx)
{ {
int i; int i;
point_t T;
fp12_t f, g; fp12_t f, g;
point_init(T, ctx);
point_copy(T, Q); point_copy(T, Q);
fp12_set_one(f); fp12_set_one(f);
for (i = 0; i < sizeof(abits); i++) {
for (i = n - 2; i >= 0; i++) {
eval(g, T, T, xP, yP); eval(g, T, T, xP, yP);
fp12_sqr_to(f); fp12_sqr_to(f);
fp12_mul_to(f, g); fp12_mul_to(f, g);
@@ -1318,44 +1426,32 @@ static void rate(fp12_t r, const point_t Q, const fp_t xP, const fp_t yP)
//point_add_to(T, Q2); //point_add_to(T, Q2);
final_expo(r, f); final_expo(r, f);
return 0;
} }
/*
* the following API should be exported:
* 1. mul generator P2/or G2, over E'(F_p^2),
* 2. e(P, G1) where G1 is a fixed generator over E(Fp)
* 3. fp12_pow(), g^k, where g in Fp12, k is in Fp
* 4. k * G2 same as 1
*
*
*/
int test() int test()
{ {
char *x_P2_1_str = "85AEF3D078640C98597B6027B441A01FF1DD2C190F5E93C454806C11D8806141"; /* P2 generator of the twist curve */
char *x_P2_0_str = "3722755292130B08D2AAB97FD34EC120EE265948D19C17ABF9B7213BAF82D65B"; char *x_P2_str[] = {
char *y_P2_1_str = "17509B092E845C1266BA0D262CBEE6ED0736A96FA347C8BD856DC76B84EBEB96"; "85AEF3D078640C98597B6027B441A01FF1DD2C190F5E93C454806C11D8806141",
char *y_P2_0_str = "A7CF28D519BE3DA65F3170153D278FF247EFBA98A71A08116215BBA5C999A7C7"; "3722755292130B08D2AAB97FD34EC120EE265948D19C17ABF9B7213BAF82D65B"};
char *y_P2_str[] = {
"17509B092E845C1266BA0D262CBEE6ED0736A96FA347C8BD856DC76B84EBEB96",
"A7CF28D519BE3DA65F3170153D278FF247EFBA98A71A08116215BBA5C999A7C7"};
/* ks signing master secret */
char *ks_str =
"0130E78459D78545CB54C587E02CF480CE0B66340F319F348A1D5B1F2DC5F4";
if (!BN_hex2bn(&x_P2_1, x_P2_1_str) /* Ppubs = ks * P2 */
|| !BN_hex2bn(&x_P2_0, x_P2_0_str) char *x_Ppubs_str[] = {
|| !BN_hex2bn(&y1, y_P2_1_str) "9F64080B3084F733E48AFF4B41B565011CE0711C5E392CFB0AB1B6791B94C408",
|| !BN_hex2bn(&y0, y_P2_0_str) "29DBA116152D1F786CE843ED24A3B573414D2177386A92DD8F14D65696EA5E32"};
|| !BN_hex2bn(ks, ks_str)) { char *y_Ppubs_str[] = {
"69850938ABEA0112B57329F447E3A0CBAD3E2FDB1A77F335E89E1408D0EF1C25",
} "41E00A53DDA532DA1A7CE027B7A46F741006E85F5CDFF0730E75C05FB4E3216D"};
if (!fp2_set(x_P2, x0, x1)
|| !fp2_set(y_P2, y0, y1)) {
}
char *ks_str = "0130E78459D78545CB54C587E02CF480CE0B66340F319F348A1D5B1F2DC5F4";
char *x_Ppubs_1_str = "9F64080B3084F733E48AFF4B41B565011CE0711C5E392CFB0AB1B6791B94C408";
char *x_Ppubs_0_str = "29DBA116152D1F786CE843ED24A3B573414D2177386A92DD8F14D65696EA5E32";
char *y_Ppubs_1_str = "69850938ABEA0112B57329F447E3A0CBAD3E2FDB1A77F335E89E1408D0EF1C25";
char *y_Ppubs_0_str = "41E00A53DDA532DA1A7CE027B7A46F741006E85F5CDFF0730E75C05FB4E3216D";
/* g = e(P1, Ppubs) */
char *g_str[] = { char *g_str[] = {
"4E378FB5561CD0668F906B731AC58FEE25738EDF09CADC7A29C0ABC0177AEA6D", "4E378FB5561CD0668F906B731AC58FEE25738EDF09CADC7A29C0ABC0177AEA6D",
"28B3404A61908F5D6198815C99AF1990C8AF38655930058C28C21BB539CE0000", "28B3404A61908F5D6198815C99AF1990C8AF38655930058C28C21BB539CE0000",
@@ -1370,7 +1466,9 @@ int test()
"84B87422330D7936EABA1109FA5A7A7181EE16F2438B0AEB2F38FD5F7554E57A", "84B87422330D7936EABA1109FA5A7A7181EE16F2438B0AEB2F38FD5F7554E57A",
"AAB9F06A4EEBA4323A7833DB202E4E35639D93FA3305AF73F0F071D7D284FCFB"}; "AAB9F06A4EEBA4323A7833DB202E4E35639D93FA3305AF73F0F071D7D284FCFB"};
char *r_str = "033C8616B06704813203DFD00965022ED15975C662337AED648835DC4B1CBE"; /* r = rand(1, n-1) */
char *r_str =
"033C8616B06704813203DFD00965022ED15975C662337AED648835DC4B1CBE";
char *w_str[] = { char *w_str[] = {
"81377B8FDBC2839B4FA2D0E0F8AA6853BBBE9E9C4099608F8612C6078ACD7563", "81377B8FDBC2839B4FA2D0E0F8AA6853BBBE9E9C4099608F8612C6078ACD7563",
@@ -1386,31 +1484,36 @@ int test()
"6A814AAF475F128AEF43A128E37F80154AE6CB92CAD7D1501BAE30F750B3A9BD", "6A814AAF475F128AEF43A128E37F80154AE6CB92CAD7D1501BAE30F750B3A9BD",
"1F96B08E97997363911314705BFB9A9DBB97F75553EC90FBB2DDAE53C8F68E42"}; "1F96B08E97997363911314705BFB9A9DBB97F75553EC90FBB2DDAE53C8F68E42"};
EC_POINT *P1 = NULL;
const EC_GROUP *group; const EC_GROUP *group;
const EC_POINT *P1; const EC_POINT *P1;
const BIGNUM *n;
group = EC_GROUP_new_by_curve_name(NID_sm9bn256v1); BIGNUM *p = NULL;
BIGNUM *a = NULL;
BIGNUM *b = NULL;
EC_GROUP_get_order(); BIGNUM *ks = NULL;
point_t P2;
point_t Ppubs;
P1 = EC_GROUP_get0_generator(G1);
if (!EC_POINT_set_affine_coordinates_GFp(group, P1, xP1, yP1, bn_ctx)) { p = BN_new();
a = BN_new();
b = BN_new();
/* check curve is correct */
if (!(group = EC_GROUP_new_by_curve_name(NID_sm9bn256v1))
|| !EC_GROUP_get_curve_GFp(group, p, a, b, ctx)
|| !(P1 = EC_GROUP_get0_generator(group))
|| !(n = EC_GROUP_get0_order(group))
|| !POINT_is_on_curve(group, P1, ctx)) {
ERR_print_errors_fp(stderr); ERR_print_errors_fp(stderr);
goto end; goto end;
} }
fp2_set(x_P2, x0, x1); EC_POINT_mul(group, Q, n, NULL, NULL, ctx)
fp2_set(y_P2, y0, y1); if (!POINT_is_at_infinity(Q)) {
point_set_affine_coordinates(P2, x_P2, y_P2); }
point_mul(R, k, P2);
point_is_at_infinity(R);
point_mul(Ppubs, ks, P2);
sm9_rate(g, Ppubs, P1);
point_mul_generator(Ppubs, ks, P2, p, ctx);
return 0;
} }