Mike Hearn
1628c1e17a
Implement and test crafting/generate methods for CommercialPaper.
...
Rename test keys and use real EC keys instead of dummies.
2015-11-27 15:44:43 +01:00
Mike Hearn
d3c15ab7de
Minor: tighten generic bound on StateAndRef
2015-11-27 15:44:06 +01:00
Mike Hearn
a98bc241ae
Early start on support for timestamping (incomplete) and addition of a helper method on LedgerTransaction
2015-11-27 15:43:48 +01:00
Mike Hearn
60f29339ee
Minor: add a convenience extension function to convert from byte arrays to SHA256 hashes.
2015-11-27 15:42:55 +01:00
Mike Hearn
19cd2069c7
Minor: clarify the distinction between sighash and txid hash. Fix Cash contract to not expect keys to be sortable.
2015-11-27 14:56:36 +01:00
Mike Hearn
de40a2082d
Minor: introduce Institution.ref() to get an InstitutionReference
2015-11-27 14:49:08 +01:00
Mike Hearn
3172b0b86a
Contracts: commercial paper issue command doesn't need a nonce, and fix a bug in the unit tests.
2015-11-25 18:14:33 +01:00
Mike Hearn
ff05cb4a4c
Contract: rewrite and finish off tests for commercial paper, using improved test DSL
2015-11-25 17:40:27 +01:00
Mike Hearn
c026e90067
Contracts: JavaCommercialPaper should implement equals/hashCode on its version of the state class and use the same grouping logic as the Kotlin version.
2015-11-25 14:26:17 +01:00
Mike Hearn
5285d3bb47
Minor: define contracts as regular classes instead of using the kotlin singleton syntax
2015-11-24 15:22:19 +01:00
Mike Hearn
5c1e4a0e35
Minor: fix kdoc in Structures.kt, spotted by Richard
2015-11-23 11:53:31 +01:00
Richard G Brown
fa32935e77
legalContractRef changed String to SecureHash (of contract contents)
2015-11-23 10:59:28 +01:00
Mike Hearn
b0b8c74c25
Minor: move the groupBy method to TransactionForVerification where it belongs.
2015-11-20 19:36:20 +01:00
Mike Hearn
a8e34a2bb2
Contracts API: move the notion of grouping into a utility file, and modify the commercial paper contract (java+kotlin) to use it.
...
This resolves several open TODO list items around the composability of contracts.
The current CP tests pass, but they aren't complete, so this doesn't prove the changes are correct. That'll come soon.
2015-11-20 19:25:15 +01:00
Mike Hearn
d6cfa9b9ef
Cash: refactor to allow multi-currency swaps by introducing a notion of grouping.
2015-11-20 18:19:24 +01:00
Mike Hearn
9681f97502
Minor: add a unit test to verify that duplicated inputs are forbidden (conflict) and delete the TODO for it.
2015-11-19 13:09:46 +01:00
Mike Hearn
7f13b8ab4a
Minor: a few misc cleanups
2015-11-19 11:56:07 +01:00
Mike Hearn
a4aef06e41
Major: introduce TransactionGroup for verifying subgraphs.
2015-11-18 19:22:31 +01:00
Mike Hearn
03ddf454c7
Minor: make LedgerTransaction keep track of the hash of the original serialised tx
2015-11-18 13:35:24 +01:00
Mike Hearn
508ce2819f
Minor: fix wording in Cash contract, suggestion from Richard.
2015-11-17 16:29:42 +01:00
Mike Hearn
fa1c6cb01b
Minor: Rename args to commands for consistency
2015-11-17 13:08:18 +01:00
Mike Hearn
5e604a5b0a
Minor: fix bug in JavaCommercialPaper
2015-11-16 21:01:38 +01:00
Mike Hearn
28bd2053cc
Contracts: add an issue crafting function to the cash contract.
2015-11-16 20:50:31 +01:00
Mike Hearn
aecc1de0cf
Contracts: make the Cash craftSpend/generate function update a mutable transaction instead of returning a unit test structure.
...
Tests: move TestUtils into the test package now the cash contract generate function works the right way.
Transactions: various refactorings to support partially signed transactions.
2015-11-16 20:36:27 +01:00
Mike Hearn
1f17053263
Introduce a PartialTransaction class to represent a mutable transaction that we're in the process of building/signing.
2015-11-16 20:08:45 +01:00
Mike Hearn
853b37a6e1
Cash: add a notion of state construction based on Richard's suggestion of a nonce+simply checking the output states are for deposits owned by the signer. No genesis tx is used.
2015-11-16 19:29:11 +01:00
Mike Hearn
5f30684805
Minor: add a kdoc to the select function.
2015-11-16 19:27:39 +01:00
Mike Hearn
0aa643d4c2
Minor: note to self, remember to check for duplicated inputs when converting LedgerTransaction into TransactionForVerification
2015-11-16 19:26:43 +01:00
Mike Hearn
2c27a07c8b
Minor: OpaqueBytes should never be empty. May catch certain types of simple mistake.
2015-11-16 19:23:50 +01:00
Mike Hearn
6c66eee712
Kotlin Beta 2
2015-11-16 19:23:50 +01:00
Mike Hearn
e3e674658d
Contracts: check in a demo of how to implement a simple contract in Java.
2015-11-16 13:30:53 +01:00
Mike Hearn
d1a605de6f
Contracts: Rename ComedyPaper to CommercialPaper and rewrite the comment at the top to flag its not-realistic status.
2015-11-16 12:42:16 +01:00
Mike Hearn
dad59d116c
Major: Integrate serialisation everywhere, implement basic signing/sig checking code.
...
Currently the serialised forms and the form fed into the contract aren't quite joined up, because on disk/network a transaction is serialised with input references i.e. (txhash, output index) pairs, but the contract wants to see all input states in fully loaded form. To do that, we need some notion of a database of transactions.
2015-11-13 23:12:39 +01:00
Mike Hearn
162b830bcd
Add some serialization utilities and tests, using Kryo.
2015-11-13 20:38:29 +01:00
Mike Hearn
5b4969d366
Minor: make commands singletons when they contain no data and are purely type system markers.
...
This may not be really compatible with sandboxing, later on. But we can always change it back if not.
2015-11-13 14:43:59 +01:00
Mike Hearn
1b44081880
Minor: tweak the cash/amount API
2015-11-12 23:38:02 +01:00
Mike Hearn
32143160c2
Minor: reformat code a bit, introduce TimestampedWireTransaction as a wrapper, fix ContractStateRef to be the same as a Bitcoin COutPoint structure.
2015-11-12 23:18:15 +01:00
Mike Hearn
0b02f64f3d
Contracts: a bit more work on the CP implementation, add a unit test for redemption at time.
2015-11-12 22:58:47 +01:00
Mike Hearn
a7bfff486a
Misc comments
2015-11-11 14:20:24 +00:00
Mike Hearn
3041ca73f2
Simply TransactionForLedger.verify
2015-11-10 11:51:26 +00:00
Mike Hearn
ac9a371179
Platform: commands can now have multiple signatures per command (i.e. you only have one command of any type per transaction even if there are multiple authorisations).
2015-11-09 19:27:53 +00:00
Mike Hearn
0dc92822b5
Remove the todo list in Main.kt, it just changes too fast to be worth keeping it up to date. TODOs in the code itself remain.
2015-11-09 18:27:10 +00:00
Mike Hearn
12b7c7c184
Platform: fix the ability to summon cash in uncontrolled ways.
...
Introduce three ways to represent transactions: wire, ledger and for-verification.
TransactionForVerification contains the arguments formally passed to verify(). Making Contract.verify() take only a single object as the argument makes it easier to evolve the Contract binary interface without breaking backwards compatibility with existing contracts that are uploaded to the ledger. The Kotlin "with" construct can be used to bring the members into scope, thus acting syntactically like function arguments.
Make the contracts to be run depend on both input AND output states: this approach seems simpler than trying to have some notion of marking outputs that are checked. The TransactionForVerification class implements this simple logic (it's all moved into Transactions.kt).
2015-11-09 18:18:03 +00:00
Mike Hearn
4b9536af04
Add some TODOs
2015-11-09 17:32:16 +00:00
Mike Hearn
b8c7f949f4
Misc changes from Monday meeting.
2015-11-09 17:23:05 +00:00
Mike Hearn
8a2b8072e6
Contracts: include a string reference to the legal contract that the code is supposed to implement. Suggestion from Richard.
2015-11-08 13:38:51 +01:00
Mike Hearn
03aaf07f70
Cash: alter description of the state to talk about cash claims. Suggestion from Richard.
2015-11-08 13:34:52 +01:00
Mike Hearn
5022f11d9e
More moving around and renaming, to have a consistent style between contracts.
2015-11-08 13:34:24 +01:00
Mike Hearn
83eb45732f
Some renaming and moving around (Children's Paper becomes Comedy Paper to make it clearer that it's sort of a joke implementation)
2015-11-08 12:30:02 +01:00
Mike Hearn
fa626fc5d7
Mark ChildrensPaper as really incomplete more visibly.
2015-11-06 19:00:44 +01:00
