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Fixed API unit test for wc_ecc_sig_size to allow smaller result.

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This commit is contained in:
David Garske 2019-04-10 21:18:17 -07:00
parent ae9ef3998c
commit bd618970c1
2 changed files with 2 additions and 2 deletions
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2
tests/api.c
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@ -14737,7 +14737,7 @@ static int test_wc_ecc_sig_size (void)
if (ret == 0) {
ret = wc_ecc_sig_size(&key);
if (ret == (2 * keySz + SIG_HEADER_SZ + ECC_MAX_PAD_SZ)) {
if (ret <= (2 * keySz + SIG_HEADER_SZ + ECC_MAX_PAD_SZ)) {
ret = 0;
}
}

2
wolfcrypt/src/ecc.c
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@ -4236,7 +4236,6 @@ static int wc_ecc_get_curve_order_bit_count(const ecc_set_type* dp)
word32 orderBits;
DECLARE_CURVE_SPECS(curve, 1);
/* if the input is larger than curve order, we must truncate */
ALLOC_CURVE_SPECS(1);
err = wc_ecc_curve_load(dp, &curve, ECC_CURVE_FIELD_ORDER);
if (err != 0) {
@ -4272,6 +4271,7 @@ static int wc_ecc_sign_hash_hw(const byte* in, word32 inlen,
return ECC_BAD_ARG_E;
}
/* if the input is larger than curve order, we must truncate */
if ((inlen * WOLFSSL_BIT_SIZE) > orderBits) {
inlen = (orderBits + WOLFSSL_BIT_SIZE - 1) / WOLFSSL_BIT_SIZE;
}