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crypto: Clear temporary heap allocations before freeing

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This reduces the time private keys may remain in heap memory after use.

Signed-off-by: Jouni Malinen <j@w1.fi>
This commit is contained in:
Jouni Malinen 2015-01-05 18:05:09 +02:00
parent a15a7fcf69
commit 77a2c3941e
4 changed files with 11 additions and 10 deletions
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2
src/crypto/aes-siv.c
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@ -95,7 +95,7 @@ static int aes_s2v(const u8 *key, size_t num_elem, const u8 *addr[],
os_memcpy(buf, addr[i], len[i]);
xorend(buf, len[i], tmp, AES_BLOCK_SIZE);
ret = omac1_aes_128(key, buf, len[i], mac);
os_free(buf);
bin_clear_free(buf, len[i]);
return ret;
}