TeaSpeak/tommath
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Merge branch 'fix/issues' into develop

Browse Source 
This closes #90
This commit is contained in:
Steffen Jaeckel 2017-10-15 12:00:26 +02:00
commit 5bb73c6f74
4 changed files with 10 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
bn_fast_mp_montgomery_reduce.c
View File

@ -28,6 +28,10 @@ int fast_mp_montgomery_reduce(mp_int *x, const mp_int *n, mp_digit rho)
int ix, res, olduse; int ix, res, olduse;
mp_word W[MP_WARRAY]; mp_word W[MP_WARRAY];
if (x->used > MP_WARRAY) {
return MP_VAL;
}
/* get old used count */ /* get old used count */
olduse = x->used; olduse = x->used;

2
bn_fast_s_mp_mul_digs.c
View File

@ -87,7 +87,7 @@ int fast_s_mp_mul_digs(const mp_int *a, const mp_int *b, mp_int *c, int digs)
{ {
mp_digit *tmpc; mp_digit *tmpc;
tmpc = c->dp; tmpc = c->dp;
for (ix = 0; ix < (pa + 1); ix++) { for (ix = 0; ix < pa; ix++) {
/* now extract the previous digit [below the carry] */ /* now extract the previous digit [below the carry] */
*tmpc++ = W[ix]; *tmpc++ = W[ix];
} }

4
bn_mp_lshd.c
View File

@ -24,6 +24,10 @@ int mp_lshd(mp_int *a, int b)
if (b <= 0) { if (b <= 0) {
return MP_OKAY; return MP_OKAY;
} }
/* no need to shift 0 around */
if (mp_iszero(a) == MP_YES) {
return MP_OKAY;
}
/* grow to fit the new digits */ /* grow to fit the new digits */
if (a->alloc < (a->used + b)) { if (a->alloc < (a->used + b)) {

1
bn_mp_montgomery_reduce.c
View File

@ -29,6 +29,7 @@ int mp_montgomery_reduce(mp_int *x, const mp_int *n, mp_digit rho)
*/ */
digs = (n->used * 2) + 1; digs = (n->used * 2) + 1;
if ((digs < MP_WARRAY) && if ((digs < MP_WARRAY) &&
(x->used <= MP_WARRAY) &&
(n->used < (n->used <
(1 << ((CHAR_BIT * sizeof(mp_word)) - (2 * DIGIT_BIT))))) { (1 << ((CHAR_BIT * sizeof(mp_word)) - (2 * DIGIT_BIT))))) {
return fast_mp_montgomery_reduce(x, n, rho); return fast_mp_montgomery_reduce(x, n, rho);