Hardcode numwords in vli_equal
diff --git a/include/tinycrypt/ecc.h b/include/tinycrypt/ecc.h
index 57c156a..55e450e 100644
--- a/include/tinycrypt/ecc.h
+++ b/include/tinycrypt/ecc.h
@@ -419,8 +419,7 @@
* @param num_words IN -- number of words
* @return Returns 0 if left == right, 1 otherwise.
*/
-uECC_word_t uECC_vli_equal(const uECC_word_t *left, const uECC_word_t *right,
- wordcount_t num_words);
+uECC_word_t uECC_vli_equal(const uECC_word_t *left, const uECC_word_t *right);
/*
* @brief Computes (left * right) % mod
diff --git a/tinycrypt/ecc.c b/tinycrypt/ecc.c
index c223ff5..0b7b41a 100644
--- a/tinycrypt/ecc.c
+++ b/tinycrypt/ecc.c
@@ -176,14 +176,13 @@
return 0;
}
-uECC_word_t uECC_vli_equal(const uECC_word_t *left, const uECC_word_t *right,
- wordcount_t num_words)
+uECC_word_t uECC_vli_equal(const uECC_word_t *left, const uECC_word_t *right)
{
uECC_word_t diff = 0;
wordcount_t i;
- for (i = num_words - 1; i >= 0; --i) {
+ for (i = NUM_ECC_WORDS - 1; i >= 0; --i) {
diff |= (left[i] ^ right[i]);
}
return !(diff == 0);
@@ -1066,7 +1065,7 @@
curve->x_side(tmp2, point, curve); /* tmp2 = x^3 + ax + b */
/* Make sure that y^2 == x^3 + ax + b */
- if (uECC_vli_equal(tmp1, tmp2, num_words) != 0)
+ if (uECC_vli_equal(tmp1, tmp2) != 0)
return -3;
return 0;
diff --git a/tinycrypt/ecc_dsa.c b/tinycrypt/ecc_dsa.c
index 7d40534..6a93705 100644
--- a/tinycrypt/ecc_dsa.c
+++ b/tinycrypt/ecc_dsa.c
@@ -298,7 +298,7 @@
}
/* Accept only if v == r. */
- return (int)(uECC_vli_equal(rx, r, num_words) == 0);
+ return (int)(uECC_vli_equal(rx, r) == 0);
}
#else
typedef int mbedtls_dummy_tinycrypt_def;