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Make datagram SPTPS key exchange more robust.
[tinc]
/
src
/
sptps.c
diff --git
a/src/sptps.c
b/src/sptps.c
index
b907dad
..
3b9498c
100644
(file)
--- a/
src/sptps.c
+++ b/
src/sptps.c
@@
-209,7
+209,7
@@
static bool generate_key_material(sptps_t *s, const char *shared, size_t len) {
memcpy(seed + 13, s->hiskex + 1, 32);
memcpy(seed + 45, s->mykex + 1, 32);
}
memcpy(seed + 13, s->hiskex + 1, 32);
memcpy(seed + 45, s->mykex + 1, 32);
}
- memcpy(seed + 7
8
, s->label, s->labellen);
+ memcpy(seed + 7
7
, s->label, s->labellen);
// Use PRF to generate the key material
if(!prf(shared, len, seed, s->labellen + 64 + 13, s->key, keylen))
// Use PRF to generate the key material
if(!prf(shared, len, seed, s->labellen + 64 + 13, s->key, keylen))