diff options
Diffstat (limited to 'crypto/bn/bn_rand.c')
| -rw-r--r-- | crypto/bn/bn_rand.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/crypto/bn/bn_rand.c b/crypto/bn/bn_rand.c index 21ecbc04ed..bab4510345 100644 --- a/crypto/bn/bn_rand.c +++ b/crypto/bn/bn_rand.c @@ -100,6 +100,27 @@ static int bnrand(int pseudorand, BIGNUM *rnd, int bits, int top, int bottom) goto err; } +#if 1 + if (pseudorand == 2) + { + /* generate patterns that are more likely to trigger BN + library bugs */ + int i; + unsigned char c; + + for (i = 0; i < bytes; i++) + { + RAND_pseudo_bytes(&c, 1); + if (c >= 128 && i > 0) + buf[i] = buf[i-1]; + else if (c < 42) + buf[i] = 0; + else if (c < 84) + buf[i] = 255; + } + } +#endif + if (top) { if (bit == 0) @@ -140,3 +161,10 @@ int BN_pseudo_rand(BIGNUM *rnd, int bits, int top, int bottom) { return bnrand(1, rnd, bits, top, bottom); } + +#if 1 +int BN_bntest_rand(BIGNUM *rnd, int bits, int top, int bottom) + { + return bnrand(2, rnd, bits, top, bottom); + } +#endif |