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Remove point_copy

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use `*R = *P` instead
This commit is contained in:
Zhi Guan
2024-04-13 18:51:33 +08:00
parent 047ec4586a
commit 9937b8dc6d
3 changed files with 6 additions and 13 deletions
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3
include/gmssl/sm9_z256.h
View File

@@ -190,7 +190,6 @@ typedef struct {
void sm9_z256_point_from_hex(SM9_Z256_POINT *R, const char hex[65 * 2]); void sm9_z256_point_from_hex(SM9_Z256_POINT *R, const char hex[65 * 2]);
int sm9_z256_point_is_at_infinity(const SM9_Z256_POINT *P); int sm9_z256_point_is_at_infinity(const SM9_Z256_POINT *P);
void sm9_z256_point_set_infinity(SM9_Z256_POINT *R); void sm9_z256_point_set_infinity(SM9_Z256_POINT *R);
void sm9_z256_point_copy(SM9_Z256_POINT *R, const SM9_Z256_POINT *P);
void sm9_z256_point_get_xy(const SM9_Z256_POINT *P, sm9_z256_t x, sm9_z256_t y); void sm9_z256_point_get_xy(const SM9_Z256_POINT *P, sm9_z256_t x, sm9_z256_t y);
int sm9_z256_point_equ(const SM9_Z256_POINT *P, const SM9_Z256_POINT *Q); int sm9_z256_point_equ(const SM9_Z256_POINT *P, const SM9_Z256_POINT *Q);
int sm9_z256_point_is_on_curve(const SM9_Z256_POINT *P); int sm9_z256_point_is_on_curve(const SM9_Z256_POINT *P);
@@ -211,8 +210,6 @@ typedef struct {
sm9_z256_fp2 Z; sm9_z256_fp2 Z;
} SM9_Z256_TWIST_POINT; } SM9_Z256_TWIST_POINT;
//#define sm9_z256_twist_point_copy(R, P) memcpy((R), (P), sizeof(SM9_Z256_TWIST_POINT))
int sm9_z256_twist_point_to_uncompressed_octets(const SM9_Z256_TWIST_POINT *P, uint8_t octets[129]); int sm9_z256_twist_point_to_uncompressed_octets(const SM9_Z256_TWIST_POINT *P, uint8_t octets[129]);
int sm9_z256_twist_point_from_uncompressed_octets(SM9_Z256_TWIST_POINT *P, const uint8_t octets[129]); int sm9_z256_twist_point_from_uncompressed_octets(SM9_Z256_TWIST_POINT *P, const uint8_t octets[129]);

13
src/sm9_z256_alg.c
View File

@@ -1738,11 +1738,6 @@ void sm9_z256_point_set_infinity(SM9_Z256_POINT *R)
sm9_z256_set_zero(R->Z); sm9_z256_set_zero(R->Z);
} }
void sm9_z256_point_copy(SM9_Z256_POINT *R, const SM9_Z256_POINT *P)
{
*R = *P;
}
// xy from this function are still mont // xy from this function are still mont
void sm9_z256_point_get_xy(const SM9_Z256_POINT *P, sm9_z256_t x, sm9_z256_t y) void sm9_z256_point_get_xy(const SM9_Z256_POINT *P, sm9_z256_t x, sm9_z256_t y)
{ {
@@ -1815,7 +1810,7 @@ void sm9_z256_point_dbl(SM9_Z256_POINT *R, const SM9_Z256_POINT *P)
sm9_z256_t X3, Y3, Z3, T1, T2, T3; sm9_z256_t X3, Y3, Z3, T1, T2, T3;
if (sm9_z256_point_is_at_infinity(P)) { if (sm9_z256_point_is_at_infinity(P)) {
sm9_z256_point_copy(R, P); *R = *P;
return; return;
} }
@@ -1853,11 +1848,11 @@ void sm9_z256_point_add(SM9_Z256_POINT *R, const SM9_Z256_POINT *P, const SM9_Z2
sm9_z256_t X3, Y3, Z3, T1, T2, T3, T4; sm9_z256_t X3, Y3, Z3, T1, T2, T3, T4;
if (sm9_z256_point_is_at_infinity(Q)) { if (sm9_z256_point_is_at_infinity(Q)) {
sm9_z256_point_copy(R, P); *R = *P;
return; return;
} }
if (sm9_z256_point_is_at_infinity(P)) { if (sm9_z256_point_is_at_infinity(P)) {
sm9_z256_point_copy(R, Q); *R = *Q;
return; return;
} }
@@ -1929,7 +1924,7 @@ void sm9_z256_point_mul(SM9_Z256_POINT *R, const sm9_z256_t k, const SM9_Z256_PO
int i; int i;
// T[i] = (i + 1) * P // T[i] = (i + 1) * P
sm9_z256_point_copy(&T[0], P); T[0] = *P;
sm9_z256_point_dbl(&T[2-1], &T[1-1]); sm9_z256_point_dbl(&T[2-1], &T[1-1]);
sm9_z256_point_dbl(&T[4-1], &T[2-1]); sm9_z256_point_dbl(&T[4-1], &T[2-1]);

3
tests/sm9test.c
View File

@@ -659,7 +659,8 @@ int test_sm9_z256_ciphertext()
size_t len = 0; size_t len = 0;
int j = 1; int j = 1;
sm9_z256_point_copy(&C1, P1); C1 = *P1;
if (sm9_ciphertext_to_der(&C1, c2, sizeof(c2), c3, &p, &len) != 1) goto err; ++j; if (sm9_ciphertext_to_der(&C1, c2, sizeof(c2), c3, &p, &len) != 1) goto err; ++j;
//printf("SM9_Z256_MAX_CIPHERTEXT_SIZE %zu\n", len); //printf("SM9_Z256_MAX_CIPHERTEXT_SIZE %zu\n", len);