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| author | Ulf Möller <ulf@openssl.org> | 2000-02-28 20:19:39 +0000 |
|---|---|---|
| committer | Ulf Möller <ulf@openssl.org> | 2000-02-28 20:19:39 +0000 |
| commit | e64dceab743f0c2f4aef5dbc2b0e479c07bd2049 (patch) | |
| tree | c6140980f1cacd91674441d1ffc893ab1d03f7a2 | |
| parent | c9e1fe33be9d9c60f832c22442cff45bf5a667a5 (diff) | |
| download | openssl-e64dceab743f0c2f4aef5dbc2b0e479c07bd2049.zip openssl-e64dceab743f0c2f4aef5dbc2b0e479c07bd2049.tar.gz openssl-e64dceab743f0c2f4aef5dbc2b0e479c07bd2049.tar.bz2 | |
Switch for turning on the predictable "random" number generator.
| -rw-r--r-- | crypto/rand/md_rand.c | 25 | ||||
| -rw-r--r-- | crypto/rand/rand_egd.c | 2 |
2 files changed, 20 insertions, 7 deletions
diff --git a/crypto/rand/md_rand.c b/crypto/rand/md_rand.c index 6b158f0..583fc13 100644 --- a/crypto/rand/md_rand.c +++ b/crypto/rand/md_rand.c @@ -130,6 +130,10 @@ #include <openssl/rand.h> +#ifdef BN_DEBUG +# define PREDICT +#endif + /* #define NORAND 1 */ /* #define PREDICT 1 */ @@ -141,6 +145,10 @@ static long md_count[2]={0,0}; static double entropy=0; static int initialized=0; +#ifdef PREDICT +int rand_predictable=0; +#endif + const char *RAND_version="RAND" OPENSSL_VERSION_PTEXT; static void ssleay_rand_cleanup(void); @@ -306,6 +314,10 @@ static void ssleay_rand_initialize(void) FILE *fh; #endif +#ifdef NORAND + return; +#endif + CRYPTO_w_unlock(CRYPTO_LOCK_RAND); /* put in some default random data, we need more than just this */ #ifndef GETPID_IS_MEANINGLESS @@ -354,13 +366,14 @@ static int ssleay_rand_bytes(unsigned char *buf, int num) #endif #ifdef PREDICT - { - static unsigned char val=0; + if (rand_predictable) + { + static unsigned char val=0; - for (i=0; i<num; i++) - buf[i]=val++; - return(1); - } + for (i=0; i<num; i++) + buf[i]=val++; + return(1); + } #endif /* diff --git a/crypto/rand/rand_egd.c b/crypto/rand/rand_egd.c index d834408..380c782 100644 --- a/crypto/rand/rand_egd.c +++ b/crypto/rand/rand_egd.c @@ -97,7 +97,7 @@ int RAND_egd(const char *path) buf[1] = 255; write(fd, buf, 2); 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); if (num < 1) goto err; RAND_seed(buf, num); |