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Rename wait_state_t to ecc_wait_state_t

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Even though this is type name is purely internal to a single C file, let's
reduce the potential for clashes with other wait state types which might be
added elsewhere in the library and become visible here (for example through
platform_util.h).
This commit is contained in:
Manuel Pégourié-Gonnard 2019-10-31 12:53:44 +01:00
parent d467116e59
commit d5e503ec33
1 changed files with 11 additions and 11 deletions
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22
tinycrypt/ecc.c
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@ -291,12 +291,12 @@ static void muladd(uECC_word_t a, uECC_word_t b, uECC_word_t *r0,
typedef struct {
uint8_t i;
uint8_t delays[14];
} wait_state_t;
} ecc_wait_state_t;
/*
* Reset wait_state so that it's ready to be used.
*/
void wait_state_reset(wait_state_t *ws)
void ecc_wait_state_reset(ecc_wait_state_t *ws)
{
if (ws == NULL)
return;
@ -324,7 +324,7 @@ void wait_state_reset(wait_state_t *ws)
* know it's always 8. This saves a bit of code size and execution speed.
*/
static void uECC_vli_mult_rnd(uECC_word_t *result, const uECC_word_t *left,
const uECC_word_t *right, wait_state_t *s)
const uECC_word_t *right, ecc_wait_state_t *s)
{
uECC_word_t r0 = 0;
@ -508,7 +508,7 @@ void uECC_vli_modMult(uECC_word_t *result, const uECC_word_t *left,
}
static void uECC_vli_modMult_rnd(uECC_word_t *result, const uECC_word_t *left,
const uECC_word_t *right, wait_state_t *s)
const uECC_word_t *right, ecc_wait_state_t *s)
{
uECC_word_t product[2 * NUM_ECC_WORDS];
uECC_vli_mult_rnd(product, left, right, s);
@ -527,7 +527,7 @@ void uECC_vli_modMult_fast(uECC_word_t *result, const uECC_word_t *left,
static void uECC_vli_modSquare_rnd(uECC_word_t *result,
const uECC_word_t *left,
wait_state_t *s)
ecc_wait_state_t *s)
{
uECC_vli_modMult_rnd(result, left, left, s);
}
@ -813,7 +813,7 @@ static void XYcZ_initial_double(uECC_word_t * X1, uECC_word_t * Y1,
static void XYcZ_add_rnd(uECC_word_t * X1, uECC_word_t * Y1,
uECC_word_t * X2, uECC_word_t * Y2,
wait_state_t *s)
ecc_wait_state_t *s)
{
/* t1 = X1, t2 = Y1, t3 = X2, t4 = Y2 */
uECC_word_t t5[NUM_ECC_WORDS];
@ -852,7 +852,7 @@ void XYcZ_add(uECC_word_t * X1, uECC_word_t * Y1,
*/
static void XYcZ_addC_rnd(uECC_word_t * X1, uECC_word_t * Y1,
uECC_word_t * X2, uECC_word_t * Y2,
wait_state_t *s)
ecc_wait_state_t *s)
{
/* t1 = X1, t2 = Y1, t3 = X2, t4 = Y2 */
uECC_word_t t5[NUM_ECC_WORDS];
@ -901,8 +901,8 @@ void EccPoint_mult(uECC_word_t * result, const uECC_word_t * point,
bitcount_t i;
uECC_word_t nb;
wordcount_t num_words = curve->num_words;
wait_state_t wait_state;
wait_state_t * const ws = g_rng_function ? &wait_state : NULL;
ecc_wait_state_t wait_state;
ecc_wait_state_t * const ws = g_rng_function ? &wait_state : NULL;
uECC_vli_set(Rx[1], point, num_words);
uECC_vli_set(Ry[1], point + num_words, num_words);
@ -910,13 +910,13 @@ void EccPoint_mult(uECC_word_t * result, const uECC_word_t * point,
XYcZ_initial_double(Rx[1], Ry[1], Rx[0], Ry[0], initial_Z, curve);
for (i = num_bits - 2; i > 0; --i) {
wait_state_reset(ws);
ecc_wait_state_reset(ws);
nb = !uECC_vli_testBit(scalar, i);
XYcZ_addC_rnd(Rx[1 - nb], Ry[1 - nb], Rx[nb], Ry[nb], ws);
XYcZ_add_rnd(Rx[nb], Ry[nb], Rx[1 - nb], Ry[1 - nb], ws);
}
wait_state_reset(ws);
ecc_wait_state_reset(ws);
nb = !uECC_vli_testBit(scalar, 0);
XYcZ_addC_rnd(Rx[1 - nb], Ry[1 - nb], Rx[nb], Ry[nb], ws);