arduino/esp8266
1
0
Fork 0
mirror of https://github.com/esp8266/Arduino.git synced 2025-06-12 01:53:07 +03:00
Code Activity

some fixes to bigint library

Browse Source 
git-svn-id: svn://svn.code.sf.net/p/axtls/code/trunk@175 9a5d90b5-6617-0410-8a86-bb477d3ed2e3
This commit is contained in:
cameronrich
2010-08-06 09:58:26 +00:00
parent c1c5656718
commit 09e79822d5
5 changed files with 36 additions and 25 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
crypto/bigint.c
View File

@ -1128,7 +1128,7 @@ static int find_max_exp_index(bigint *biexp)
}
shift >>= 1;
} while (--i != 0);
} while (i-- != 0);
return -1; /* error - must have been a leading 0 */
}
@ -1151,7 +1151,7 @@ static int exp_bit_is_one(bigint *biexp, int offset)
shift <<= 1;
}
return test & shift;
return (test & shift) != 0;
}
#ifdef CONFIG_BIGINT_CHECK_ON

10
crypto/crypto_misc.c
View File

@ -48,10 +48,10 @@ static HCRYPTPROV gCryptProv;
#endif
#if (!defined(CONFIG_USE_DEV_URANDOM) && !defined(CONFIG_WIN32_USE_CRYPTO_LIB))
/* change to 32bit processor registers as appropriate */
/* change to processor registers as appropriate */
#define ENTROPY_POOL_SIZE 32
#define ENTROPY_COUNTER1 (uint32_t)((tv.tv_sec<<16) + tv.tv_usec)
#define ENTROPY_COUNTER2 (uint32_t)rand()
#define ENTROPY_COUNTER1 ((((uint64_t)tv.tv_sec)<<32) | tv.tv_usec)
#define ENTROPY_COUNTER2 rand()
static uint8_t entropy_pool[ENTROPY_POOL_SIZE];
#endif
@ -181,8 +181,8 @@ EXP_FUNC void STDCALL get_random(int num_rand_bytes, uint8_t *rand_data)
/* A proper implementation would use counters etc for entropy */
gettimeofday(&tv, NULL);
uint64_t *ep = (uint64_t *)entropy_pool;
ep[0] ^= (uint64_t)ENTROPY_COUNTER1;
ep[1] ^= (uint64_t)ENTROPY_COUNTER2;
ep[0] ^= ENTROPY_COUNTER1;
ep[1] ^= ENTROPY_COUNTER2;
/* use a digested version of the entropy pool as a key */
MD5_Init(&rng_digest_ctx);