Commit graph

2867 commits

Author SHA1 Message Date
moneromooo-monero
4f887dea6e
increase minimum mixin to 4 on hard fork 5 2016-08-28 21:30:33 +01:00
moneromooo-monero
0815c72df7
core: allow v1 txes after HF 5 when sweeping unmixable outputs 2016-08-28 21:30:31 +01:00
moneromooo-monero
f782d45827
tests: hard fork list must end with a 0 2016-08-28 21:30:29 +01:00
moneromooo-monero
074e602609
ringct: use Cryptonote serialization to hash non prunable data 2016-08-28 21:30:28 +01:00
moneromooo-monero
c3b3260ae5
New "Halfway RingCT" outputs for coinbase transactions
When RingCT is enabled, outputs from coinbase transactions
are created as a single output, and stored as RingCT output,
with a fake mask. Their amount is not hidden on the blockchain
itself, but they are then able to be used as fake inputs in
a RingCT ring. Since the output amounts are hidden, their
"dustiness" is not an obstacle anymore to mixing, and this
makes the coinbase transactions a lot smaller, as well as
helping the TXO set to grow more slowly.

Also add a new "Null" type of rct signature, which decreases
the size required when no signatures are to be stored, as
in a coinbase tx.
2016-08-28 21:30:26 +01:00
moneromooo-monero
6f526cdff8
rct: log why verification fails
and remove some unnecessary variables in the checking code
2016-08-28 21:30:23 +01:00
moneromooo-monero
d4b8991e44
rct: serialize txnFee as varint 2016-08-28 21:30:21 +01:00
moneromooo-monero
d4b62a1e29
rct amount key modified as per luigi1111's recommendations
This allows the key to be not the same for two outputs sent to
the same address (eg, if you pay yourself, and also get change
back). Also remove the key amounts lists and return parameters
since we don't actually generate random ones, so we don't need
to save them as we can recalculate them when needed if we have
the correct keys.
2016-08-28 21:30:19 +01:00
moneromooo-monero
93f5c625f0
rct: rework v2 txes into prunable and non prunable data
Nothing is pruned, but this allows easier changes later.
2016-08-28 21:30:18 +01:00
moneromooo-monero
d93746b6d3
rct: rework the verification preparation process
The whole rct data apart from the MLSAGs is now included in
the signed message, to avoid malleability issues.

Instead of passing the data that's not serialized as extra
parameters to the verification API, the transaction is modified
to fill all that information. This means the transaction can
not be const anymore, but it cleaner in other ways.
2016-08-28 21:30:16 +01:00
moneromooo-monero
3ab2ab3e76
rct: change the simple flag to a type
for future expansion
2016-08-28 21:30:14 +01:00
Shen Noether
c5be4b0bea
rct: avoid the need for the last II element
This element is used in the generation of the MLSAG, but isn't
needed in verification.
Also misc changes in the cryptonote code to match, by mooo.
2016-08-28 21:30:12 +01:00
moneromooo-monero
a47ceee83b
wallet: do not store signatures in the wallet cache
Saves some substantial space.
Also avoid calculating tx hashes we don't need.
2016-08-28 21:30:10 +01:00
moneromooo-monero
0263dd2d23
core: add some locking around pool use 2016-08-28 21:30:08 +01:00
moneromooo-monero
2c9d9519f1
wallet2: factor m_spent changes
Makes it easier to track what is going on.
2016-08-28 21:30:04 +01:00
moneromooo-monero
1303cda646
wallet: always use new algorithm for RPC transfers
This ensures we get rct transactions when appropriate
2016-08-28 21:30:03 +01:00
moneromooo-monero
b337aea6cc
rct: do not serialize senderPk - it is not used anymore 2016-08-28 21:30:01 +01:00
moneromooo-monero
e5a9a4755b
core_tests: fix a couple pre-rct tests using rct 2016-08-28 21:29:58 +01:00
moneromooo-monero
230fca2d56
wallet: use the prefered rct case only when enough rct outs exist 2016-08-28 21:29:55 +01:00
moneromooo-monero
c27194a444
wallet: do not try to use rct txes a few blocks before the fork 2016-08-28 21:29:53 +01:00
moneromooo-monero
1bf069825b
tx_pool: log why a transaction was rejected for version checks 2016-08-28 21:29:51 +01:00
moneromooo-monero
37bdf6ebe3
change fork settings to allow pre-rct txes for one more fork cycle 2016-08-28 21:29:50 +01:00
moneromooo-monero
cc85cc6a3f
simplewallet: better check_tx_key feedback
Print number of confirmations if the tx is in the blockchain,
or a warning if it's in the pool.
2016-08-28 21:29:48 +01:00
moneromooo-monero
9b70856ccb
rct: make the amount key derivable by a third party with the tx key
Scheme design from luigi1114.
2016-08-28 21:29:46 +01:00
moneromooo-monero
cf33e1a52a
rct: do not serialize public keys in outPk
They can be reconstructed from vout
2016-08-28 21:29:43 +01:00
moneromooo-monero
83ab3151e8
wallet2_api: zero amounts are now allowed with rct 2016-08-28 21:29:41 +01:00
moneromooo-monero
096ac06521
wallet2_api: update on_money_{received,spent} prototypes for rct changes 2016-08-28 21:29:40 +01:00
moneromooo-monero
3cb2edec66
rpc: send global indices along with blocks/transacions on refresh
This plugs a privacy leak, where the wallet tells the daemon
which transactions contain outputs for the wallet by asking
for additional information for that particular transaction.

As a nice bonus, this actually makes refresh slightly faster.
2016-08-28 21:29:38 +01:00
moneromooo-monero
414b424d32
core: always use the new simple rct variant 2016-08-28 21:29:36 +01:00
moneromooo-monero
ce5de8b430
tests: add tests for wallet output selection 2016-08-28 21:29:34 +01:00
moneromooo-monero
84c82cd775
wallet: better tx input selection
We try to avoid related inputs, when possible
2016-08-28 21:29:32 +01:00
moneromooo-monero
1e21651f24
rct: use the already defined H where possible
Found by luigi1111w
2016-08-28 21:29:29 +01:00
moneromooo-monero
07d353dfc6
wallet: handle 0 change properly
With RCT, we allow 0 size outputs, to try and encourage txes
with two inputs and two outputs. Consolidation would then
have two non zero inputs, one zero output, and one larger
output.
2016-08-28 21:29:27 +01:00
moneromooo-monero
e81a2b2cfa
port get_tx_key/check_tx_key to rct 2016-08-28 21:29:24 +01:00
moneromooo-monero
e06faefde4
tests: add basic tests for simple rct api 2016-08-28 21:29:22 +01:00
moneromooo-monero
a4d4d6194b
integrate simple rct api 2016-08-28 21:29:20 +01:00
moneromooo-monero
1e8d37e7d8
serialization: add override for serializing bool 2016-08-28 21:29:19 +01:00
Shen Noether
dbb5f2d6a3
ringct: optimization/cleanup of hash functions 2016-08-28 21:29:16 +01:00
Shen Noether
4fd01f2bee
ringct: "simple" ringct variant
Allows the fake outs to be in different positions for each ring.
For rct inputs only.
2016-08-28 21:29:14 +01:00
moneromooo-monero
37c895e5e3
wallet: rct specific output selection
Before the normal selection, we attempt to find either one or two
suitable outputs to use as inputs to the rct tx. The intent is that
most rct txes will have one or two inputs, and we want all to look
the same if possible.
When two outputs are needed, we try to find a pair which are not
related (ie, by being from the same or similar block height).
2016-08-28 21:29:11 +01:00
moneromooo-monero
1181c57967
wallet: make sweep_all work with rct txes too 2016-08-28 21:29:09 +01:00
moneromooo-monero
c2ec6d35b9
mixable transactions must be rct for v3 2016-08-28 21:29:07 +01:00
moneromooo-monero
1017a75460
wallet: factor transfer_rct code with transfer code
The "transfer" simplewallet command is renamed to "transfer_original".
"transfer_new" is renamed "transfer", "transfer_rct" is removed,
and the new "transfer" now selects rct or non rct transactions
based on the current block height.
2016-08-28 21:29:05 +01:00
moneromooo-monero
f5465d8246
Condition v2 txes on v3 hard fork 2016-08-28 21:29:04 +01:00
moneromooo-monero
59a66e209a
move the rct commitments to the output_amounts database
Since these are needed at the same time as the output pubkeys,
this is a whole lot faster, and takes less space. Only outputs
of 0 amount store the commitment. When reading other outputs,
a fake commitment is regenerated on the fly. This avoids having
to rewrite the database to add space for fake commitments for
existing outputs.

This code relies on two things:

- LMDB must support fixed size records per key, rather than
per database (ie, all records on key 0 are the same size, all
records for non 0 keys are same size, but records from key 0
and non 0 keys do have different sizes).

- the commitment must be directly after the rest of the data
in outkey and output_data_t.
2016-08-28 21:29:02 +01:00
moneromooo-monero
6d0e47148b
rct: add the tx prefix hash into the MLSAG
to protect the non-signatures parts of the tx from tampering.
2016-08-28 21:28:58 +01:00
moneromooo-monero
35dce5c70c
ringct: fix size unit mismatch calling keccak 2016-08-28 21:28:57 +01:00
moneromooo-monero
20e50ec7f7
ringct: do not serialize what can be reconstructed
The mixRing (output keys and commitments) and II fields (key images)
can be reconstructed from vin data.
This saves some modest amount of space in the tx.
2016-08-28 21:28:55 +01:00
moneromooo-monero
106e3dc3d4
Add rct core tests 2016-08-28 21:28:53 +01:00
moneromooo-monero
ada527558f
Use the supplied hard fork version in validate_miner_transaction
rather than using the current one. No functional changes, but may
save some bugs in the future.
2016-08-28 21:28:51 +01:00