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fix mp_val non prime issue

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toddouska
2014-08-29 18:09:18 -07:00
parent 658f3ec073
commit b02b648c4d
1 changed files with 0 additions and 4 deletions
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4
ctaocrypt/src/ecc.c
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@@ -4660,14 +4660,12 @@ int mp_sqrtmod_prime(mp_int* n, mp_int* prime, mp_int* ret)
done = 1; done = 1;
} }
/* NOW: TonelliShanks algorithm */ /* NOW: TonelliShanks algorithm */
if (res == MP_OKAY && done == 0) { if (res == MP_OKAY && done == 0) {
/* factor out powers of 2 from prime-1, defining Q and S /* factor out powers of 2 from prime-1, defining Q and S
* as: prime-1 = Q*2^S */ * as: prime-1 = Q*2^S */
res = mp_copy(prime, &Q); res = mp_copy(prime, &Q);
if (res == MP_OKAY) if (res == MP_OKAY)
res = mp_sub_d(&Q, 1, &Q); res = mp_sub_d(&Q, 1, &Q);
@@ -4716,8 +4714,6 @@ int mp_sqrtmod_prime(mp_int* n, mp_int* prime, mp_int* ret)
if (res == MP_OKAY) if (res == MP_OKAY)
res = mp_set_int(&two, 2); res = mp_set_int(&two, 2);
if (res == MP_OKAY)
res = MP_VAL;
while (res == MP_OKAY && done == 0) { while (res == MP_OKAY && done == 0) {
res = mp_copy(&T, &t1); res = mp_copy(&T, &t1);
i = 0; i = 0;