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207 Commits

Author SHA1 Message Date
Simon 82f3c490b1 Remove #1144 from transaction.h. 
Reverts to 4bc00dc with commits f0dab51 (snark) and f5e5707 (joinsplit) retained.
GetTxid() is now an alias for GetHash().
 2016-09-07 15:12:09 -07:00
Jack Grigg 5db5e42ec3 Add optional bool to disable computation of proof in JSDescription constructor 2016-08-30 00:29:49 +12:00
Daira Hopwood c6a7e897bc Add mostly-static checks on consistency of Equihash parameters, MAX_HEADERS_RESULTS, and MAX_PROTOCOL_MESSAGE_LENGTH. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-08-24 06:13:06 +01:00
zkbot cd9d373987 Auto merge of #1260 - str4d:1175-byte-array-manipulation, r=ebfull 
Update Equihash implementation to match the Zcash spec

Closes #1175
 2016-08-24 03:01:13 +00:00
Sean Bowe f0dab51cf3 Implement zkSNARK compression. 2016-08-22 00:36:12 -06:00
Jack Grigg 5be6abbf84 Store the Equihash solution in minimal representation in the block header 
The genesis blocks and miner tests have been regenerated, because changing the
block header serialisation format changes the block hash, and thus validity.

The Equihash solutions have been removed from the bloom test inputs for
simplicity (block validity is not checked there; only a valid serialisation is
necessary).
 2016-08-16 16:02:39 +12:00
Sean Bowe f5e5707d4c Change memo field size and relocate `ciphertexts` field of JoinSplit description. 2016-08-15 09:39:14 -06:00
Simon 74cd8821c7 Remove GetSerializeHash() method. 2016-07-29 23:28:34 -07:00
Simon c63af91a78 Update comment. 2016-07-28 18:44:00 -07:00
Simon 3979881fc5 Fix comment. 2016-07-28 16:40:01 -07:00
Simon 92f7426d19 Make txid const. 2016-07-27 12:14:44 -07:00
Simon 90a9019387 Fix issue where a coinbase tx should have it's sigscript hashed 
to avoid duplicate txids, as discussed in BIP34 and BIP30.
 2016-07-27 00:52:27 -07:00
Simon 07e6d5b025 Refactor GetTxid() into UpdateTxid() to match coding style of hash member variable. 
UpdateTxid() is called alongside UpdateHash() when a CTransaction is
deserialized or constructed.  GetTxid() now returns a const reference.
 2016-07-26 17:13:03 -07:00
Simon 10d2c57c0d Replace calls to GetHash() with GetTxid() for transaction objects. 
Where the caller intends to receive a transaction id and not a double
SHA256 hash.
 2016-07-26 17:13:03 -07:00
Simon 1e84d84d3a Rename GetHash() method to GetSerializeHash(). 
When pulling from upstream we are now forced to examine GetHash() usage
and replace with GetSerializeHash() if the caller wants a double SHA256
hash, or with GetTxid() if the caller wants a transaction id.
 2016-07-26 17:09:27 -07:00
Simon 49689a574c Add GetTxid() which returns a non-malleable txid. 2016-07-26 17:09:27 -07:00
Daira Hopwood 4bc00dc141 Bucket -> note. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-07-18 10:06:18 -06:00
Sean Bowe b7e4abd6f7 Rename some usage of 'pour'. 2016-07-18 10:06:18 -06:00
Sean Bowe 942bc46756 Rename GetPourValueIn to GetJoinSplitValueIn 2016-07-18 10:06:18 -06:00
Sean Bowe bfeaf0049a Rename JSDescription's `serials` to `nullifiers`. 2016-07-18 10:06:18 -06:00
Sean Bowe 8675d94b63 Rename vpour to vjoinsplit. 2016-07-18 10:06:18 -06:00
Sean Bowe a8c68ffe99 Rename CPourTx to JSDescription. 2016-07-18 10:06:18 -06:00
Jack Grigg a8d384aeda Add a 256-bit reserved field to the block header 
This field has no defined semantics. While it was added as a result of
discussions about merged mining in #724, this field will not necessarily ever be
used for that purpose.
 2016-06-07 16:06:25 +12:00
Sean Bowe 3a10823ad4 Wrap lines in *CTransaction constructors. 2016-05-30 19:35:09 -06:00
Sean Bowe 1e99cbab04 Use joinsplit_sig_t in more places. 2016-05-30 19:33:28 -06:00
Sean Bowe 320f2cc7e0 Switch to Ed25519 for cryptographic binding of joinsplits to transactions. 2016-05-30 11:05:55 -06:00
Taylor Hornby b48122b57b Fix tests for JoinSplit signatures 2016-05-30 11:05:43 -06:00
Taylor Hornby 6aae9d1a55 Sign JoinSplit transactions 2016-05-30 11:05:31 -06:00
Sean Bowe 3ebca007f3 Reorder fields of CPourTx to reflect the spec. 2016-05-24 11:08:31 -06:00
Sean Bowe 9285bba885 Enable binary serializations of proofs and r1cs keys, and make the `CPourTx` proof field fixed-size. 2016-05-24 11:08:31 -06:00
Sean Bowe 2dc3599271 Transplant of libzcash. 2016-05-12 16:44:47 -06:00
Sean Bowe 2140639309 Remove scriptPubKey/scriptSig from CPourTx, and add randomSeed. 2016-05-12 16:44:30 -06:00
Sean Bowe 5961dcb6da Change ciphertext length to match protocol spec, and refactor the use of constants. 2016-05-05 21:02:03 -06:00
Sean Bowe 6c36a9fe03 NoteEncryption implementation and integration, removal of ECIES and crypto++ dependencies. 2016-04-28 16:25:12 -06:00
Jack Grigg fdda3c5085 Use Equihash for Proof-of-Work 
The main and test networks are configured to use parameters that are currently
low-memory but usable with the basic solver; they will be increased once the
solver is optimised. The regtest network is configured to have extremely low
memory usage for speed.

Note that Bitcoin's double-hasher is used for the difficulty check. This does
not match the paper, but is simpler than changing the block header
serialization. Single hashing is kept for the EquiHash solver because there is
no requirement on execution time there, only on memory usage.
 2016-04-08 13:56:00 +12:00
Sean Bowe a897db652f Reorganizing the zerocash tree. 2016-02-15 15:28:20 -07:00
Sean Bowe d488e75ea8 Fix comment. 2016-01-19 16:29:44 -07:00
Sean Bowe f512cf7c7b Added value balance consensus enforcement for pours. 2016-01-19 14:36:04 -07:00
Sean Bowe 96c31d163f Added CPourTx verification and construction routines. 2016-01-19 14:36:04 -07:00
Sean Bowe 5884044ba9 Introduce `vpour` to `CTransaction`. 
Transactions of version 2 and above contain a `vpour` field which is a vector of `CPourTx`
objects that embody our protocol. We introduce serialization primitives for boost::array
(we intend for changing the amount of inputs and outputs in the circuit to be simple).

SIGHASH_* operations hash this field like any other for now.
 2016-01-19 14:35:59 -07:00
Peter Todd 5e82e1c8f5 Add CHECKLOCKTIMEVERIFY (BIP65) soft-fork logic 
Based on the earlier BIP66 soft-fork logic implemented by Pieter
Wuille's 5a47811da5

Rebased-From: 287f54fc90c29301faede8d4ac2ea24a91441917
 2015-10-08 17:48:51 +02:00
jtimon 691161d419 Consensus: Create consensus/consensus.h with some constants 2015-04-20 21:27:51 +02:00
Wladimir J. van der Laan df5c246ba3
Merge pull request #5831 
1d9b378 qa/rpc-tests/wallet: Tests for sendmany (Luke Dashjr)
40a7573 rpcwallet/sendmany: Just take an array of addresses to subtract fees from, rather than an Object with all values being identical (Luke Dashjr)
292623a Subtract fee from amount (Cozz Lovan)
90a43c1 [Qt] Code-movement-only: Format confirmation message in sendcoinsdialog (Cozz Lovan)
 2015-03-16 12:23:14 +01:00
Cozz Lovan 292623adf5 Subtract fee from amount 
Fixes #2724 and #1570.

Adds the
automatically-subtract-the-fee-from-the-amount-and-send-whats-left
feature to the GUI and RPC (sendtoaddress,sendmany).
 2015-03-13 11:04:18 +01:00
Wladimir J. van der Laan a0ae79d775 Replace CBlockHeader::GetHash with call to SerializeHash 
Removes variability between LE and BE.
As suggested by @sipa.
 2015-03-06 17:21:59 +01:00
Wladimir J. van der Laan 4f92773f92 src/primitives/transaction.h: endian compatibility in serialization 2015-03-06 17:21:58 +01:00
Wladimir J. van der Laan 81aeb28436 src/primitives/block.cpp: endian compatibility in GetHash 2015-03-06 17:21:58 +01:00
Wladimir J. van der Laan 41e6e4caba
Merge pull request #5713 
bf6cdeb Increase coverage of DERSIG edge cases (Pieter Wuille)
819bcf9 Add RPC test for DERSIG BIP switchover logic (Pieter Wuille)
5a47811 BIP66 changeover logic (Pieter Wuille)
092e9fe Example unit tests from BIP66 (Pieter Wuille)
80ad135 Change IsDERSignature to BIP66 implementation (Pieter Wuille)
 2015-02-03 10:34:53 +01:00
Pieter Wuille 5a47811da5 BIP66 changeover logic 2015-02-01 17:51:24 -04:00
Pavel Janík 5262fde0ec Remove whitespaces before double colon in errors and logs 2015-01-31 17:38:28 -05:00
Wladimir J. van der Laan 3b95808428
Merge pull request #5520 
bdb6a71 IsNull doesn't change CBlockLocator, add const hint (Pavel Janík)
1b37333 Remove no longer needed declaration of CBlockLocator (Pavel Janík)
 2015-01-06 20:01:00 +01:00
Wladimir J. van der Laan 4f1524966a Replace direct use of 0 with SetNull and IsNull 
Replace x=0 with .SetNull(),
x==0 with IsNull(), x!=0 with !IsNull().
Replace uses of uint256(0) with uint256().
 2015-01-05 15:45:34 +01:00
Pavel Janík bdb6a71d3d IsNull doesn't change CBlockLocator, add const hint 2014-12-20 16:58:40 +01:00
sandakersmann f914f1a746
Added "Core" to copyright headers 
Github-Pull: #5494
Rebased-From: 15de949bb9277e442302bdd8dee299a8d6deee60
 2014-12-19 19:55:32 +01:00
Michael Ford 78253fcbad Remove references to X11 licence 2014-12-16 15:56:50 +08:00
Matt Corallo afd4b94b6d Move CMerkleBlock and CPartialMerkleTree to their own file 2014-12-05 01:57:40 -08:00
Luke Dashjr d227011184 MOVEONLY: core/ -> primitives/ 2014-12-03 10:52:58 +00:00