Remove tag files.

[bertos.git] / bertos / sec / random.c

diff --git a/bertos/sec/random.c b/bertos/sec/random.c
index 2e3877b0596476e827e2ed4f5a232f8ad9a8b329..67c24859529d9a2daee538418b0e8f3a7b062083 100644 (file)
--- a/bertos/sec/random.c
+++ b/bertos/sec/random.c
@@ -46,18 +46,21 @@
 #include <sec/util.h>
 #include <sec/hash/sha1.h>
 #include <sec/prng/isaac.h>
+#include <sec/prng/x917.h>
+#include <sec/prng/yarrow.h>
+#include <sec/entropy/yarrow_pool.h>
 
 /********************************************************************************/
 /* Configuration of the random module                                           */
 /********************************************************************************/
 
-#define POOL_CONTEXT          PP_CAT(PP_CAT(PRNG_NAME, CONFIG_RANDOM_POOL), _Context)
-#define POOL_INIT             PP_CAT(PP_CAT(PRNG_NAME, CONFIG_RANDOM_POOL), _init)
+#define POOL_CONTEXT          PP_CAT(PP_CAT(POOL_NAMEU, CONFIG_RANDOM_POOL), Context)
+#define POOL_INIT             PP_CAT(PP_CAT(POOL_NAMEL, CONFIG_RANDOM_POOL), _init)
 
 #define EXTRACTOR_STACKINIT   PP_CAT(PP_CAT(EXTRACTOR_NAME, CONFIG_RANDOM_EXTRACTOR), _stackinit)
 
-#define PRNG_CONTEXT          PP_CAT(PP_CAT(PRNG_NAME, CONFIG_RANDOM_PRNG), _Context)
-#define PRNG_INIT             PP_CAT(PP_CAT(PRNG_NAME, CONFIG_RANDOM_PRNG), _init)
+#define PRNG_CONTEXT          PP_CAT(PP_CAT(PRNG_NAMEU, CONFIG_RANDOM_PRNG), Context)
+#define PRNG_INIT             PP_CAT(PP_CAT(PRNG_NAMEL, CONFIG_RANDOM_PRNG), _init)
 
 
 /********************************************************************************/
@@ -66,7 +69,7 @@
 
 #if CONFIG_RANDOM_POOL != POOL_NONE
 static POOL_CONTEXT epool_ctx;
-static EntropyPool_Context * const epool = (EntropyPool_Context *)&epool_ctx;
+static EntropyPool * const epool = (EntropyPool *)&epool_ctx;
 #endif
 
 static PRNG_CONTEXT prng_ctx;
@@ -81,11 +84,11 @@ static bool initialized = 0;
 
 /*
  * Reseed the PRNG if there is enough entropy available at this time.
- * 
- * Some designs (eg: fortuna) suggest to artificially limit the frequency of 
+ *
+ * Some designs (eg: fortuna) suggest to artificially limit the frequency of
  * this operation to something like 0.1s, to avoid attacks that try to exhaust
  * the entropy pool.
- * 
+ *
  * We don't believe such attacks are available in an embedded system (as an attacker
  * does not have a way to ask random numbers from the pool) but we will play safe
  * here in case eg. the user does something wrong.
@@ -93,21 +96,21 @@ static bool initialized = 0;
 static void optional_reseeding(void)
 {
 #if CONFIG_RANDOM_POOL != POOL_NONE
-       static ticks_t last_reseed = 0;
+       static ticks_t last_reseed = -1000;
 
-       // We don't allow more than 10 reseedings per second 
+       // We don't allow more than 10 reseedings per second
        // (as suggested by Fortuna)
        ticks_t current = timer_clock();
        if (ticks_to_ms(current - last_reseed) < 100)
                return;
-       
+
        if (entropy_seeding_ready(epool))
        {
                uint8_t seed[prng_seed_len(prng)];
-               
+
                entropy_make_seed(epool, seed, sizeof(seed));
                prng_reseed(prng, seed);
-               
+
                last_reseed = current;
                PURGE(seed);
        }
@@ -117,7 +120,7 @@ static void optional_reseeding(void)
 
 /*
  * Perform the initial seeding of the PRNG.
- * 
+ *
  * At startup, we want to immediately seed the PRNG to a point where it can
  * generate safe-enough random numbers. To do this, we rely on a hw-dependent
  * function to pull entropy from available hw sources, and then feed it
@@ -134,7 +137,7 @@ static void initial_seeding(void)
                random_pull_entropy(buf, sizeof(buf));
                entropy_add(epool, 0, buf, sizeof(buf), sizeof(buf)*8);
        } while (!entropy_seeding_ready(epool));
-       
+
        optional_reseeding();
 
 #elif CONFIG_RANDOM_EXTRACTOR != EXTRACTOR_NONE