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Merge remote-tracking branch 'origin/pr/97'

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Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell 2016-11-18 14:28:13 +10:30
commit 97a155bad5
1 changed files with 3 additions and 1 deletions
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4
daemon/sphinx.c
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@ -184,11 +184,13 @@ static bool compute_hmac(
static void compute_packet_hmac(const struct onionpacket *packet, u8 *mukey, u8 *hmac)
{
u8 mactemp[ROUTING_INFO_SIZE + TOTAL_HOP_PAYLOAD_SIZE + MESSAGE_SIZE];
u8 mac[32];
memcpy(mactemp, packet->routinginfo, ROUTING_INFO_SIZE);
memcpy(mactemp + ROUTING_INFO_SIZE, packet->hoppayloads, TOTAL_HOP_PAYLOAD_SIZE);
memcpy(mactemp + ROUTING_INFO_SIZE + TOTAL_HOP_PAYLOAD_SIZE, packet->payload, sizeof(packet->payload));
compute_hmac(hmac, mactemp, sizeof(mactemp), mukey, KEY_LEN);
compute_hmac(mac, mactemp, sizeof(mactemp), mukey, KEY_LEN);
memcpy(hmac, mac, 20);
}
static bool generate_key(void *k, const char *t, u8 tlen, const u8 *s)