diff options
Diffstat (limited to 'crypto/bn')
| -rw-r--r-- | crypto/bn/bn_rand.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/crypto/bn/bn_rand.c b/crypto/bn/bn_rand.c index b8fbbc8386..fb583fb358 100644 --- a/crypto/bn/bn_rand.c +++ b/crypto/bn/bn_rand.c @@ -76,7 +76,7 @@ static int bnrand(int pseudorand, BIGNUM *rnd, int bits, int top, int bottom) bytes=(bits+7)/8; bit=(bits-1)%8; - mask=0xff<<bit; + mask=0xff<<(bit+1); buf=(unsigned char *)OPENSSL_malloc(bytes); if (buf == NULL) @@ -133,16 +133,15 @@ static int bnrand(int pseudorand, BIGNUM *rnd, int bits, int top, int bottom) else { buf[0]|=(3<<(bit-1)); - buf[0]&= ~(mask<<1); } } else { buf[0]|=(1<<bit); - buf[0]&= ~(mask<<1); } } - if (bottom) /* set bottom bits to whatever odd is */ + buf[0] &= ~mask; + if (bottom) /* set bottom bit if requested */ buf[bytes-1]|=1; if (!BN_bin2bn(buf,bytes,rnd)) goto err; ret=1; |