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Author SHA1 Message Date
Rusty Russell
e4921b9bc6 Add documentation. 
First up, a draft of a paper showing the differences between the LN draft
and this.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-07-18 10:46:53 +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
0f9ae8a19f ccan: add ripemd160 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-07-09 15:26:13 +09:30
Rusty Russell
81e73926f3 ccan: update. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-07-09 15:25:31 +09:30
Rusty Russell
ec399e13a4 Makefile: update-ccan: new target. 
Hacky, but syncs up ccan repository.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-07-09 15:25:09 +09:30
Rusty Russell
402f1d28a8 Update .gitignore. 
Reduce the clutter.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-07-09 15:25:01 +09:30
Rusty Russell
456a43c3b4 Clean up extra ccan dirs. 
Turns out that CCAN's create-ccan-tree has a bug with submodules.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-07-09 15:24:14 +09:30
Rusty Russell
376e5bb584 README.md: Note Elements requirement. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-07-03 14:03:45 +09:30
Rusty Russell
a663dc322c Remove signature leaking. 
Alpha has segregated witnesses, so txid doesn't include the inputs.
That means we can create the first commit transaction before we sign
the anchor tx.

Bitcoin will need to do this differently: presumbly via new sipops
(a OP_CHECKSIG2VERIFY I imagine).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-07-03 14:00:54 +09:30
Rusty Russell
69b2690ecb HOWTO-USE.md: use alpha instead of bitcoind for examples. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-07-03 13:39:27 +09:30
Rusty Russell
f510e29e22 alpha: switch over to Elements Alpha by default. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-07-03 13:36:25 +09:30
Rusty Russell
c660629760 test.sh: (alpha) make sure that spending tx fails too soon, succeeds after delay. 
This only makes sense when we have CSV support.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-07-03 10:47:29 +09:30
Rusty Russell
4011f7ae7c create-commit-spend-tx: set alpha fields, and input locktime. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-07-03 10:45:43 +09:30
Rusty Russell
20bb6c65aa protocol fix: use locktime from *other* side. 
Which emerged clearly when setting one side's locktime differently than
the other.

Each side specifies the (minimum) time they need to notice a fraud attempt:
this constrains the *other* side.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-07-03 10:44:49 +09:30
Rusty Russell
66b1df4036 tx: locktime should be 0. 
It doesn't matter until we start setting sequence numbers properly,
so hasn't been noticed until now.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-07-03 10:44:44 +09:30
Rusty Russell
1075264c66 close_tx: initialize fee and input amount fields. 
Required for alpha.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-07-01 16:55:11 +09:30
Rusty Russell
90e4160862 test.sh: handle appended amounts in transactions. 
cut -d: -f1 gets just the transactions, or passed through if no ":".

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-07-01 16:55:11 +09:30
Rusty Russell
ae31431168 tx: centralize transaction writing, append amounts for alpha. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-07-01 16:55:11 +09:30
Rusty Russell
5dc9cd16f9 create-steal-tx: actually output the steal tx, not the commit tx! 
... Which reveals it wasn't paying a fee.  So update fix that, and
initialize the alpha tx fields while we're there.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-07-01 16:55:03 +09:30
Rusty Russell
9851436d4d test.sh: restore --steal and --unilateral options 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-07-01 16:27:52 +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
faae91f3fc Schnorr signature support. 
This variation is used by alpha.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-07-01 16:27:52 +09:30
Rusty Russell
1d82bf51fc signature: fix invalid S check. 
The even-S check was based on https://github.com/sipa/bitcoin/commit/a81cd9680
which was replaced by a low-S check in commit e0e14e43d9586409e42919f6cb955540134cda2a

Abstract out and fix the check.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-07-01 16:27:52 +09:30
Rusty Russell
d20ddb5a90 Use libsecp256k1 instead of openssl for crypto. 
We still use openssl for bignums (base58) and for ripemd.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-07-01 16:27:52 +09:30
Rusty Russell
5a79ef9502 Import secp256k1 (schnorr version) 
Imported from: git@github.com:sipa/secp256k1.git schnorr3 (0ab0b47)

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
20624c049f tx: prepare for Elements Alpha. 
They sign, hash, and serialize differently.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-07-01 16:27:45 +09:30
Rusty Russell
27e7c7b986 scripts/setup.sh: setup helper script. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-06-30 12:58:49 +09:30
Rusty Russell
783aa35aa6 Make test.sh inputs script arguments. 
Hardcoding my defaults isn't useful.  Even for me.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-06-30 12:54:48 +09:30
Rusty Russell
f38382fd3c test.sh: handle variances in bitcoin-cli formatting. 
In particular, there may or may not be a space between "pubkey" and :.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-06-30 12:34:35 +09:30
Rusty Russell
8f4426e09b scripts: move to scripts/ subdir, prepare for alpha. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-06-30 12:08:18 +09:30
Rusty Russell
61737a79d2 Fix typo. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-06-25 13:48:05 +09:30
Rusty Russell
4e9b0f1951 Actually commit the README.md. 
Oops.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-06-24 16:19:00 +09:30
Rusty Russell
602117e8bb Add valgrind memcheck helpers. 
Otherwise valgrind tells you when you test a hash; you want to
know if you hash uninitialized memory long before that.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-06-24 16:15:34 +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
733e655d17 getinput.sh: abstract out bitcoin-cli command. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-06-23 16:03:14 +09:30
Rusty Russell
0666265b5e HOWTO-USE.md: poor documentation for poor tools. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-06-12 14:54:27 +09:30
Rusty Russell
98b1d478b1 test-cli: remove obsolete examples from program headers. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-06-12 14:38:48 +09:30
Rusty Russell
d4a6fb8b2d Add test script. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-06-12 14:37:19 +09:30
Rusty Russell
924be8456e create-commit-spend-tx: fix locktime, take into account updates. 
We were using o2's locktime instead of o1's, and we didn't take
into account updates.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-06-12 14:36:25 +09:30
Rusty Russell
a700a5cdca create-commit-tx: allow creation of initial opening tx. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-06-12 14:32:48 +09:30
Rusty Russell
fb036399eb LICENSE: Make MIT licensing clear. 
ccan/opt is GPLv2, so the test-cli utils are GPLv2, but they're temporary.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-06-12 13:30:39 +09:30
Rusty Russell
c91d2b5206 ccan: add local copy. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-06-12 13:29:06 +09:30
Rusty Russell
92ec2f874b pkt: add pkt_totlen() helper. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-06-12 13:06:33 +09:30
Rusty Russell
77387bb370 test-cli/create-commit-spend-tx: don't endian convert script_len. 
That's done in mashalling and hashing code.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-06-12 13:06:33 +09:30
Rusty Russell
6389dbd455 protocol: restore locktime in blocks option. 
This could be used by an always-on node to agressively shorten their timeouts.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-06-12 13:06:33 +09:30
Rusty Russell
a0b621689e TAGS: Improve support. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-06-12 12:44:45 +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
4e8eda47a1 Move hacky command line utils out to test-cli subdir. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-06-12 12:35:42 +09:30