diff options
Diffstat (limited to 'src/common/crypto.c')
| -rw-r--r-- | src/common/crypto.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/common/crypto.c b/src/common/crypto.c index 816423aa85..ba5c8a79b5 100644 --- a/src/common/crypto.c +++ b/src/common/crypto.c @@ -2817,7 +2817,11 @@ memwipe(void *mem, uint8_t byte, size_t sz) * variable. It's an elaborate ruse to trick the compiler into not * optimizing out the "wipe this memory" code. Read it if you like zany * programming tricks! In later versions of Tor, we should look for better - * not-optimized-out memory wiping stuff. */ + * not-optimized-out memory wiping stuff... + * + * ...or maybe not. In practice, there are pure-asm implementations of + * OPENSSL_cleanse() on most platforms, which ought to do the job. + **/ OPENSSL_cleanse(mem, sz); /* Just in case some caller of memwipe() is relying on getting a buffer * filled with a particular value, fill the buffer. |