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Merge pull request #5604 from SparkiDev/mp_init_size_fizes_2

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SP int: mp_init_size fixes when SP_WORD_SIZE == 8
This commit is contained in:
David Garske
2022-09-19 06:50:26 -07:00
committed by GitHub
parent dd32f30306 e7dba670d6
commit 0b81a584cc
1 changed files with 5 additions and 2 deletions
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7
wolfcrypt/src/sp_int.c
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@@ -5181,10 +5181,13 @@ int sp_set_int(sp_int* a, unsigned long n)
else { else {
int i; int i;
for (i = 0; n > 0; i++,n >>= SP_WORD_SIZE) { for (i = 0; (i < a->size) && (n > 0); i++,n >>= SP_WORD_SIZE) {
a->dp[i] = (sp_int_digit)n; a->dp[i] = (sp_int_digit)n;
} }
a->used = i; a->used = i;
if ((i == a->size) && (n != 0)) {
err = MP_VAL;
}
} }
#endif #endif
#ifdef WOLFSSL_SP_INT_NEGATIVE #ifdef WOLFSSL_SP_INT_NEGATIVE
@@ -15078,7 +15081,7 @@ int sp_mont_norm(sp_int* norm, sp_int* m)
} }
if (err == MP_OKAY) { if (err == MP_OKAY) {
bits = sp_count_bits(m); bits = sp_count_bits(m);
if (bits == m->size * SP_WORD_SIZE) { if (bits >= norm->size * SP_WORD_SIZE) {
err = MP_VAL; err = MP_VAL;
} }
} }