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80 Commits

Author SHA1 Message Date
Rusty Russell
7efc0efab1 scripteq: simple helper for comparing scripts. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-05-03 11:27:56 +09:30
Rusty Russell
f4e94147a7 Remove unused script functions now we use witness. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-04-24 20:09:39 +09:30
Rusty Russell
b1700b1a91 protocol: non-HTLC commit tx outputs are p2wpkh 
This is changes the payments to either party to be p2wpkh.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-04-24 19:57:35 +09:30
Rusty Russell
8dce2e77f7 script: 2of2 witness support. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-04-24 19:54:35 +09:30
Rusty Russell
410fc3b272 misc: remove some unused functions. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-04-24 19:33:13 +09:30
Rusty Russell
d9c4960f33 bitcoin/script: support for creating p2sh-p2wpkh. 
We want this because P2SH is something we can tell bitcoind to pay to;
we can't (yet?) do that with "raw" P2WPKH.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-04-12 13:07:04 +09:30
Rusty Russell
af080d5613 bitcoin/script: helper to create ScriptCode for signing P2WPKH. 
sign_tx_input() now takes a witness_script arg: P2WPKH doesn't really
have a witness_script, but for signing it behaves as if it does.

This helper constructs that "fake" witness_script.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-04-12 13:06:51 +09:30
Rusty Russell
8104886503 Remove Alpha support. 
I had already disabled it, and this clears the decks for Segregated Witness
which gives us everything we want.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-04-11 16:32:43 +09:30
Rusty Russell
b6943b9198 protocol: remove support for uncompressed pubkeys. 
There's no good reason to support them, and this way every key is 33 bytes.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-03-30 16:54:16 +10:30
Rusty Russell
c1d1b360bf daemon: add memcheck() in various places where we expect things to be initialized. 
This just causes valgrind to warn sooner.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-03-08 10:31:15 +10:30
Rusty Russell
6750794667 Use #if instead of #ifdef (we already use -Wundef). 
This avoids embarassing typos in future.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-01-27 15:00:50 +10:30
Rusty Russell
9aa0eac814 bitcoin: hand in a secp256k1_context to all routines. 
We don't want to re-create them internally, ever.

The test-cli tools are patched to generate them all the time, but
they're not performance critical.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-01-22 06:41:47 +10:30
Rusty Russell
9ebbe16b1e source cleanup: sort include lines into alpha order 
This makes merging easier in future.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-01-22 06:38:08 +10:30
Rusty Russell
4b02c6f558 locktime: nice abstractions for absolute and relative locktimes. 
I got confused navigating these, especially since Alpha and Bitcoin
have diverged (BIP68 was proposed after Elements Alpha).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-01-22 06:38:08 +10:30
Rusty Russell
4e23f9916d script: encode numbers minimally. 
This happens for CSV, for example (3-byte encoding), and bitcoind treats
too-long encodings as non-standard.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-01-22 06:38:08 +10:30
Rusty Russell
242fa1b2dd pubkey: pubkey_eq helper. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-09-30 16:38:58 +09:30
Rusty Russell
58a62e782d bitcoin/script: don't pass value for HTLC script. 
We don't need it.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-09-24 14:56:01 +09:30
Rusty Russell
08ae4a687d script: HTLC support. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-08-07 12:45:30 +09:30
Rusty Russell
cf3433a0ad script: add OP_CHECKLOCKTIMEVERIFY. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-08-07 12:45:30 +09:30
Rusty Russell
0170ad4abd script: add add_push_le32 helper. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-08-07 12:45:30 +09:30
Rusty Russell
aa79887d79 script: use the normalized delay script form for commit output. 
As documented in the paper; it's also two bytes shorter, and allows
us to use the exact same script for three cases.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-07-24 16:00:10 +09:30
Rusty Russell
d053181b0b script: add standard routines for secret-or-timedelay outputs. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-07-24 16:00:10 +09:30
Rusty Russell
8f64eb90af Switch over to CCAN's ripemd160. 
Avoids handing naked u8 arrays around, too.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-07-09 15:43:36 +09:30
Rusty Russell
62a002c860 script: make DER for signature encoding optional. 
Alpha does the sane thing, places signatures raw.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-07-01 16:27:52 +09:30
Rusty Russell
fbe63124f6 Move DER encoding into bitcoin/signature.c 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-07-01 16:27:52 +09:30
Rusty Russell
143e7e032c Optimize revocable output a little. 
Both paths do CHECKSIG, do that outside.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-06-23 16:05:09 +09:30
Rusty Russell
9f12b72476 Don't include mutual redemption in recovable commit tx output. 
It's not clear it's needed, and without it there's a good reason to
delay dumping to the blockchain if a node becomes unreachable (since
you'll get your money faster if it comes back online).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-06-12 12:41:30 +09:30
Rusty Russell
ef9463f6b1 Sort include lines (ignoring hacky cli test utils). 
Put ccan first, openssl next, then standard headers, then locals.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-06-12 12:41:28 +09:30
Rusty Russell
442f321585 Move protobuf<->bitcoin converters out of bitcoin/ 
They're lightning-specific.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-06-12 12:35:42 +09:30
Rusty Russell
612d713470 Move bitcoin stuff into bitcoin subdir. 
It's not very interesting if you're looking for LN code.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-06-12 12:35:42 +09:30