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s_fp_sub() bug fix

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This commit is contained in:
Chris Conlon 2013-04-05 13:44:53 -06:00
parent 2dd22938d6
commit eeb8cdccde
1 changed files with 1 additions and 1 deletions
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2
ctaocrypt/src/tfm.c
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@ -169,7 +169,7 @@ void s_fp_sub(fp_int *a, fp_int *b, fp_int *c)
for (; x < a->used; x++) {
t = ((fp_word)a->dp[x]) - t;
c->dp[x] = (fp_digit)t;
t = (t >> DIGIT_BIT);
t = (t >> DIGIT_BIT)&1;
}
for (; x < oldused; x++) {
c->dp[x] = 0;