arduino/esp8266
1
0
Fork 0
mirror of https://github.com/esp8266/Arduino.git synced 2025-07-30 16:24:09 +03:00
Code Activity

* RSA_decrypt now checks the integrity of the first 11 bytes.

Browse Source 
* The size of the output buffer in RSA_decrypt is now checked and cleared.
* get_random now returns an error code
* Various system calls now check the return code to remove gcc warnings.

git-svn-id: svn://svn.code.sf.net/p/axtls/code/trunk@237 9a5d90b5-6617-0410-8a86-bb477d3ed2e3
This commit is contained in:
cameronrich
2014-11-07 00:38:49 +00:00
parent 08b27ee1cb
commit 9ef84f9234
7 changed files with 4939 additions and 4895 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
crypto/crypto_misc.c
View File

@ -156,11 +156,12 @@ EXP_FUNC void STDCALL RNG_terminate(void)
/**
* Set a series of bytes with a random number. Individual bytes can be 0
*/
EXP_FUNC void STDCALL get_random(int num_rand_bytes, uint8_t *rand_data)
EXP_FUNC int STDCALL get_random(int num_rand_bytes, uint8_t *rand_data)
{
#if !defined(WIN32) && defined(CONFIG_USE_DEV_URANDOM)
/* use the Linux default */
read(rng_fd, rand_data, num_rand_bytes); /* read from /dev/urandom */
/* use the Linux default - read from /dev/urandom */
if (read(rng_fd, rand_data, num_rand_bytes) < 0)
return -1;
#elif defined(WIN32) && defined(CONFIG_WIN32_USE_CRYPTO_LIB)
/* use Microsoft Crypto Libraries */
CryptGenRandom(gCryptProv, num_rand_bytes, rand_data);
@ -198,21 +199,25 @@ EXP_FUNC void STDCALL get_random(int num_rand_bytes, uint8_t *rand_data)
/* insert the digest at the start of the entropy pool */
memcpy(entropy_pool, digest, MD5_SIZE);
#endif
return 0;
}
/**
* Set a series of bytes with a random number. Individual bytes are not zero.
*/
void get_random_NZ(int num_rand_bytes, uint8_t *rand_data)
int get_random_NZ(int num_rand_bytes, uint8_t *rand_data)
{
int i;
get_random(num_rand_bytes, rand_data);
if (get_random(num_rand_bytes, rand_data))
return -1;
for (i = 0; i < num_rand_bytes; i++)
{
while (rand_data[i] == 0) /* can't be 0 */
rand_data[i] = (uint8_t)(rand());
}
return 0;
}
/**