lukechilds
/
lightning
mirror of https://github.com/lukechilds/lightning.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity
Browse Source

cryptopkt: update to latest encryption BOLT. 

As per lightning-rfc commit b579b16866855da166981192c0f0549517069d4e.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
ppa-0.6.1
Rusty Russell 9 years ago
parent
df4df8679d
commit
5472f73f9c
4 changed files with 77 additions and 35 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Split View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 65
      daemon/cryptopkt.c
  2. 32
      lightning.pb-c.c
  3. 10
      lightning.pb-c.h
  4. 5
      lightning.proto

65
daemon/cryptopkt.c
View File

@ -358,28 +358,45 @@ static struct io_plan *check_proof(struct io_conn *conn, struct peer *peer)
if (!auth)
return io_close(conn);
if (!proto_to_signature(peer->dstate->secpctx, auth->session_sig,
&sig)) {
log_unusual(peer->log, "Invalid auth signature");
return io_close(conn);
}
/* BOLT #1:
*
* The receiving node MUST check that:
*
* 1. `node_id` is the expected value for the sending node.
*/
if (!proto_to_pubkey(peer->dstate->secpctx, auth->node_id, &id)) {
log_unusual(peer->log, "Invalid auth id");
return io_close(conn);
}
/* Did we expect a specific ID? */
if (!peer->id)
peer->id = tal_dup(peer, struct pubkey, &id);
else if (!structeq(&id, peer->id)) {
log_unusual(peer->log, "Incorrect auth id");
return io_close(conn);
}
/* Signature covers *our* session key. */
sha256_double(&sha,
neg->our_sessionpubkey, sizeof(neg->our_sessionpubkey));
/* BOLT #1:
*
* 2. `session_sig` is a valid secp256k1 ECDSA signature encoded as
* a 32-byte big endian R value, followed by a 32-byte big
* endian S value.
*/
if (!proto_to_signature(peer->dstate->secpctx, auth->session_sig,
&sig)) {
log_unusual(peer->log, "Invalid auth signature");
return io_close(conn);
}
/* BOLT #1:
*
* 3. `session_sig` is the signature of the SHA256 of SHA256 of the
* its own sessionpubkey, using the secret key corresponding to
* the sender's `node_id`.
*/
sha256_double(&sha, neg->our_sessionpubkey,
sizeof(neg->our_sessionpubkey));
if (!check_signed_hash(peer->dstate->secpctx, &sha, &sig, peer->id)) {
log_unusual(peer->log, "Bad auth signature");
@ -391,16 +408,19 @@ static struct io_plan *check_proof(struct io_conn *conn, struct peer *peer)
/* BOLT #1:
*
* The receiver MUST NOT examine the `ack` value until after
* the authentication fields have been successfully validated.
* The `ack` field MUST BE set to the number of
* non-authenticate messages received and processed if
* non-zero.
* The receiver MUST NOT examine the `commits_seen` or
*
* `revocations_seen` values until after the authentication fields
* have been successfully validated. The `commits_seen` field MUST
* BE set to the number of `update_commit` and `open_commit_sig`
* messages received and processed if non-zero. The
* `revocations_seen` MUST BE set to the number of
* `update_revocation` messages received and processed.
*/
/* FIXME: Handle reconnects. */
if (auth->ack != 0) {
log_unusual(peer->log, "FIXME: non-zero acknowledge %"PRIu64,
auth->ack);
if (auth->commits_seen != 0 || auth->revocations_seen != 0) {
log_unusual(peer->log, "FIXME: non-zero seen %"PRIu64"/%"PRIu64,
auth->commits_seen, auth->revocations_seen);
return io_close(conn);
}
@ -473,7 +493,12 @@ static struct io_plan *keys_exchanged(struct io_conn *conn, struct peer *peer)
setup_crypto(&peer->io_data->out, shared_secret,
neg->our_sessionpubkey);
/* Now sign their session key to prove who we are. */
/* BOLT #1:
*
* `session_sig` is the signature of the SHA256 of SHA256 of the its
* own sessionpubkey, using the secret key corresponding to the
* sender's `node_id`.
*/
privkey_sign(peer, neg->their_sessionpubkey,
sizeof(neg->their_sessionpubkey), &sig);

32
lightning.pb-c.c
View File

@ -1464,8 +1464,9 @@ const ProtobufCMessageDescriptor funding__descriptor =
(ProtobufCMessageInit) funding__init,
NULL,NULL,NULL /* reserved[123] */
};
static const uint64_t authenticate__ack__default_value = 0ull;
static const ProtobufCFieldDescriptor authenticate__field_descriptors[3] =
static const uint64_t authenticate__commits_seen__default_value = 0ull;
static const uint64_t authenticate__revocations_seen__default_value = 0ull;
static const ProtobufCFieldDescriptor authenticate__field_descriptors[4] =
{
{
"node_id",
@ -1492,27 +1493,40 @@ static const ProtobufCFieldDescriptor authenticate__field_descriptors[3] =
0,NULL,NULL /* reserved1,reserved2, etc */
},
{
"ack",
"commits_seen",
3,
PROTOBUF_C_LABEL_OPTIONAL,
PROTOBUF_C_TYPE_UINT64,
offsetof(Authenticate, has_ack),
offsetof(Authenticate, ack),
offsetof(Authenticate, has_commits_seen),
offsetof(Authenticate, commits_seen),
NULL,
&authenticate__ack__default_value,
&authenticate__commits_seen__default_value,
0, /* flags */
0,NULL,NULL /* reserved1,reserved2, etc */
},
{
"revocations_seen",
4,
PROTOBUF_C_LABEL_OPTIONAL,
PROTOBUF_C_TYPE_UINT64,
offsetof(Authenticate, has_revocations_seen),
offsetof(Authenticate, revocations_seen),
NULL,
&authenticate__revocations_seen__default_value,
0, /* flags */
0,NULL,NULL /* reserved1,reserved2, etc */
},
};
static const unsigned authenticate__field_indices_by_name[] = {
2, /* field[2] = ack */
2, /* field[2] = commits_seen */
0, /* field[0] = node_id */
3, /* field[3] = revocations_seen */
1, /* field[1] = session_sig */
};
static const ProtobufCIntRange authenticate__number_ranges[1 + 1] =
{
{ 1, 0 },
{ 0, 3 }
{ 0, 4 }
};
const ProtobufCMessageDescriptor authenticate__descriptor =
{
@ -1522,7 +1536,7 @@ const ProtobufCMessageDescriptor authenticate__descriptor =
"Authenticate",
"",
sizeof(Authenticate),
3,
4,
authenticate__field_descriptors,
authenticate__field_indices_by_name,
1, authenticate__number_ranges,

10
lightning.pb-c.h
View File

@ -176,14 +176,16 @@ struct _Authenticate
*/
Signature *session_sig;
/*
* How many (non-authenticate) packets we've already received
* How many commitment/revocation messages we've already received
*/
protobuf_c_boolean has_ack;
uint64_t ack;
protobuf_c_boolean has_commits_seen;
uint64_t commits_seen;
protobuf_c_boolean has_revocations_seen;
uint64_t revocations_seen;
};
#define AUTHENTICATE__INIT \
{ PROTOBUF_C_MESSAGE_INIT (&authenticate__descriptor) \
, NULL, NULL, 0,0ull }
, NULL, NULL, 0,0ull, 0,0ull }
/*

5
lightning.proto
View File

@ -64,8 +64,9 @@ message authenticate {
required bitcoin_pubkey node_id = 1;
// Signature of your session key. */
required signature session_sig = 2;
// How many (non-authenticate) packets we've already received
optional uint64 ack = 3 [ default = 0 ];
// How many commitment/revocation messages we've already received
optional uint64 commits_seen = 3 [ default = 0 ];
optional uint64 revocations_seen = 4 [ default = 0 ];
};
// Set channel params.

Write Preview
Loading…
Cancel
Save