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Change comments. (The expected number of iterations in BN_rand_range

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never exceeds 1.333...).
This commit is contained in:
Bodo Möller 2001-02-08 12:27:00 +00:00
parent a0707e6170
commit d82242169b
1 changed files with 2 additions and 2 deletions
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4
crypto/bn/bn_rand.c
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@ -162,7 +162,7 @@ int BN_rand_range(BIGNUM *r, BIGNUM *min, BIGNUM *range)
{ {
do do
{ {
/* range = 11..._2, so each iteration succeeds with probability > .5 */ /* range = 11..._2, so each iteration succeeds with probability > .75 */
if (!BN_rand(r, n, 0, 0)) return 0; if (!BN_rand(r, n, 0, 0)) return 0;
} }
while (BN_cmp(r, range) >= 0); while (BN_cmp(r, range) >= 0);
@ -178,7 +178,7 @@ int BN_rand_range(BIGNUM *r, BIGNUM *min, BIGNUM *range)
* (which is either r, r - range, or r - 2*range). * (which is either r, r - range, or r - 2*range).
* Otherwise, iterate once more. * Otherwise, iterate once more.
* Since 3*range = 11..._2, each iteration succeeds with * Since 3*range = 11..._2, each iteration succeeds with
* probability > .5. */ * probability > .75. */
if (BN_cmp(r ,range) >= 0) if (BN_cmp(r ,range) >= 0)
{ {
if (!BN_sub(r, r, range)) return 0; if (!BN_sub(r, r, range)) return 0;