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Bug fix: BN_is_prime() would fail with a high probability for small

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primes (negligible for larger ones).
This commit is contained in:
Ulf Möller 2000-02-01 23:48:55 +00:00
parent 0bde1089f8
commit 1399f17a07
1 changed files with 1 additions and 0 deletions
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1
crypto/bn/bn_prime.c
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@ -204,6 +204,7 @@ int BN_is_prime_fasttest(BIGNUM *a, int checks,
if (!BN_pseudo_rand(check,BN_num_bits(a),0,0)) goto err;
if (BN_cmp(check, a) >= 0)
BN_sub(check, check, a);
if (BN_is_zero(check)) BN_one(check);
j=witness(check,a,ctx,ctx2,mont);
if (j == -1) goto err;
if (j)