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updates.
[silc.git]
/
lib
/
silccrypt
/
silchmac.c
diff --git
a/lib/silccrypt/silchmac.c
b/lib/silccrypt/silchmac.c
index 1edfb3813049610adf3f17f67cc704ea9a2b2b77..d3484983c7ce2f0d39fae90c744d79e5232714f7 100644
(file)
--- a/
lib/silccrypt/silchmac.c
+++ b/
lib/silccrypt/silchmac.c
@@
-190,6
+190,10
@@
char *silc_hmac_get_supported()
void silc_hmac_set_key(SilcHmac hmac, const unsigned char *key,
unsigned int key_len)
{
void silc_hmac_set_key(SilcHmac hmac, const unsigned char *key,
unsigned int key_len)
{
+ if (hmac->key) {
+ memset(hmac->key, 0, hmac->key_len);
+ silc_free(hmac->key);
+ }
hmac->key = silc_calloc(key_len, sizeof(unsigned char));
hmac->key_len = key_len;
memcpy(hmac->key, key, key_len);
hmac->key = silc_calloc(key_len, sizeof(unsigned char));
hmac->key_len = key_len;
memcpy(hmac->key, key, key_len);