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MP small: mp_add_d doesn't support adding a digit greater than MP_DIGIT_MAX

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Sean Parkinson
2021-02-17 09:24:22 +10:00
parent cc37227f18
commit 7ce3860e19
1 changed files with 2 additions and 0 deletions
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2
wolfcrypt/src/integer.c
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@ -4302,6 +4302,8 @@ int mp_add_d (mp_int* a, mp_digit b, mp_int* c)
int res, ix, oldused; int res, ix, oldused;
mp_digit *tmpa, *tmpc, mu; mp_digit *tmpa, *tmpc, mu;
if (b > MP_DIGIT_MAX) return MP_VAL;
/* grow c as required */ /* grow c as required */
if (c->alloc < a->used + 1) { if (c->alloc < a->used + 1) {
if ((res = mp_grow(c, a->used + 1)) != MP_OKAY) { if ((res = mp_grow(c, a->used + 1)) != MP_OKAY) {