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Switch for turning on the predictable "random" number generator.

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This commit is contained in:
Ulf Möller 2000-02-28 20:19:39 +00:00
parent c9e1fe33be
commit e64dceab74
2 changed files with 20 additions and 7 deletions
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25
crypto/rand/md_rand.c
View File

@ -130,6 +130,10 @@
#include <openssl/rand.h> #include <openssl/rand.h>
#ifdef BN_DEBUG
# define PREDICT
#endif
/* #define NORAND 1 */ /* #define NORAND 1 */
/* #define PREDICT 1 */ /* #define PREDICT 1 */
@ -141,6 +145,10 @@ static long md_count[2]={0,0};
static double entropy=0; static double entropy=0;
static int initialized=0; static int initialized=0;
#ifdef PREDICT
int rand_predictable=0;
#endif
const char *RAND_version="RAND" OPENSSL_VERSION_PTEXT; const char *RAND_version="RAND" OPENSSL_VERSION_PTEXT;
static void ssleay_rand_cleanup(void); static void ssleay_rand_cleanup(void);
@ -306,6 +314,10 @@ static void ssleay_rand_initialize(void)
FILE *fh; FILE *fh;
#endif #endif
#ifdef NORAND
return;
#endif
CRYPTO_w_unlock(CRYPTO_LOCK_RAND); CRYPTO_w_unlock(CRYPTO_LOCK_RAND);
/* put in some default random data, we need more than just this */ /* put in some default random data, we need more than just this */
#ifndef GETPID_IS_MEANINGLESS #ifndef GETPID_IS_MEANINGLESS
@ -354,13 +366,14 @@ static int ssleay_rand_bytes(unsigned char *buf, int num)
#endif #endif
#ifdef PREDICT #ifdef PREDICT
{ if (rand_predictable)
static unsigned char val=0; {
static unsigned char val=0;
for (i=0; i<num; i++) for (i=0; i<num; i++)
buf[i]=val++; buf[i]=val++;
return(1); return(1);
} }
#endif #endif
/* /*

2
crypto/rand/rand_egd.c
View File

@ -97,7 +97,7 @@ int RAND_egd(const char *path)
buf[1] = 255; buf[1] = 255;
write(fd, buf, 2); write(fd, buf, 2);
if (read(fd, buf, 1) != 1) goto err; if (read(fd, buf, 1) != 1) goto err;
if (buf[0] == 0) goto err; if (buf[0] == 0) goto err;
num = read(fd, buf, 255); num = read(fd, buf, 255);
if (num < 1) goto err; if (num < 1) goto err;
RAND_seed(buf, num); RAND_seed(buf, num);