c9e03f37ce
Logger now only speaks when spoken to
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Before this change, the logger's send channel could quickly be
flooded with Tick events. Those events should only be passed to
a writer.
Also, the log_event() function no longer sends entries. That
functionality moved to the new process_events() function. This
will allow us to initialize the with the genesis block without
flooding the send channel with events the historian won't read.
2018-03-05 10:33:12 -07:00
aa5f1699a7
Update the set of unique signatures when loading an existing log.
2018-03-04 22:31:12 -07:00
e1e9126d03
Merge pull request #44 from garious/genesis
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Finally, genesis block generation without channels
2018-03-04 14:39:28 -07:00
672a4b3723
Update historian diagram
2018-03-04 14:36:55 -07:00
955f76baab
Finally, genesis block generation without channels
2018-03-04 14:32:30 -07:00
7da8a5e2d1
Merge pull request #42 from garious/genesis
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Make num_hashes more intuitive
2018-03-04 13:05:38 -07:00
ff82fbf112
Make num_hashes mean the num_hashes since the last ID
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Before this change, num_hashes meant the number of hashes since
the last ID, minus any hashing done on the event data. It made
no difference for Tick events, but logged Transaction events with
one less hash than actually occurred.
2018-03-04 09:52:36 -07:00
8503a0a58f
Refactor
2018-03-04 09:21:45 -07:00
b1e9512f44
Rename end_hash to id
2018-03-04 07:50:26 -07:00
608def9c78
Consolidate imports
2018-03-04 07:28:51 -07:00
bcb21bc1d8
Delete dead code
2018-03-04 07:20:17 -07:00
f63096620a
Merge pull request #41 from garious/genesis
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Add command-line tool for generating a genesis block
2018-03-04 01:27:59 -07:00
9b26892bae
Add a demo app to generate the genesis file
2018-03-04 01:21:40 -07:00
572475ce14
Load the genesis block
2018-03-04 00:15:17 -07:00
876d7995e1
Refactor to support loading an existing ledger
2018-03-03 22:25:40 -07:00
b8655e30d4
Make client-demo standalone
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And remove deposit() methods from the API. Those should only be
used on the server to bootstrap.
2018-03-03 21:15:51 -07:00
7cf0d55546
Remove optional 'from' field
2018-03-03 20:41:07 -07:00
ce60b960c0
Special case sending money to self
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In the genesis block, let matching 'from' and 'to' keys be used
to mint new coin.
2018-03-03 20:27:12 -07:00
cebcb5b92d
Start genesis with a Tick, so that its hash can be used to bootstrap verification
2018-03-03 19:57:22 -07:00
11a0f96f5e
Add command-line tool for generating a genesis block
2018-03-03 17:35:05 -07:00
74ebaf1744
Merge pull request #40 from garious/add-logger
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Add logger
2018-03-03 14:37:15 -07:00
f7496ea6d1
Make create_logger a static method
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Allows us to share the super long type signature in impl.
2018-03-03 14:26:59 -07:00
bebba7dc1f
Give logger its own crate
2018-03-03 14:24:32 -07:00
afb2bf442c
Use Instant instead of SystemTime for more precise ticking
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And convert log_event from function to method
2018-03-03 14:08:53 -07:00
c7de48c982
Convert log_events from function to method
2018-03-03 14:00:37 -07:00
f906112c03
Move logging thread's state into a struct
2018-03-03 13:52:57 -07:00
8ef864fb39
Merge pull request #37 from garious/split-benchmark
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Split benchmark
2018-03-03 12:13:54 -07:00
1c9b5ab53c
Report performance of signature verification too
2018-03-03 11:59:34 -07:00
c10faae3b5
More readable metrics
2018-03-03 11:52:50 -07:00
2104dd5a0a
Fix benchmark
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Was measuring the creation of the iterator, not running it.
2018-03-03 11:45:23 -07:00
fbe64037db
Merge pull request #35 from garious/split-benchmark
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Move key generation and signing from transaction benchmark
2018-03-03 11:25:58 -07:00
d8c50b150c
Move key generation and signing from transaction benchmark
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Key generation, signing and verification are not the performance
bottleneck. Something is probably wrong here.
2018-03-03 11:11:46 -07:00
8871bb2d8e
Merge pull request #30 from garious/simplify
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Unify Claim and Transaction handling
2018-03-02 12:24:44 -07:00
a148454376
Update readme
2018-03-02 12:07:05 -07:00
be518b569b
Remove cyclic dependency between event and log
2018-03-02 12:03:59 -07:00
c998fbe2ae
Sign the owner's public key
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Without this, the accountant will reject transfers from different
entities if they are for the same amount and to the same entity.
2018-03-02 11:56:42 -07:00
9f12cd0c09
Purge the Claim event type
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It's now represented as a Transaction from an unknown party.
2018-03-02 11:48:58 -07:00
0d0fee1ca1
Sign Claim's 'to' field
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Otherwise, the accountant will treat deposits of the same amount as
duplicates.
2018-03-02 11:46:22 -07:00
a0410c4677
Pipe all Claim constructors through a function
2018-03-02 10:58:43 -07:00
8fe464cfa3
Rename Claim's key field to match same field in Transaction
2018-03-02 10:47:21 -07:00
3e2d6d9e8b
Generalize Transaction to express a Claim
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If a Transaction doesn't have an existing address, it's being used
to create new funds.
2018-03-02 10:41:15 -07:00
32d677787b
Reduce transactions sent by demo
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We don't do retries yet, so keep tx count to something that won't
trigger any packet loss.
2018-03-02 10:35:38 -07:00
dfd1c4eab3
Don't process transaction if channel.send() fails.
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Do all input validation first, then log (which can fail). If all
goes swimmingly, process the transaction.
2018-03-02 10:17:52 -07:00
36bb1f989d
More defense against a double-spend attack
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Before this change, a client could spend funds before the accountant
processed a previous spend. With this change in place, the accountant
updates balances immediately, but that comes at an architectural cost.
The accountant now verifies signatures on behalf of the historian, so
that it can ensure logging will not fail.
2018-03-02 09:55:44 -07:00
684f4c59e0
Delete commented out code
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accountant crate shouldn't verify the log. Instead, it should
only add valid entries and leave verification to network nodes.
2018-03-02 08:51:29 -07:00
1b77e8a69a
Move Event into its own crate
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The log crate was starting to be the catch-all for all things
related to entries, events, signatures, and hashes. This split
shows us that:
* Event depends only on signatures, not on hashes [directly]
* All event testing was done via log testing (shame on me)
* Accounting depends only on events
2018-03-02 08:43:57 -07:00
662e10c3e0
Merge pull request #29 from garious/simplify
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Remove Discovery event
2018-03-01 18:53:25 -07:00
c935fdb12f
Move signature duplicate detection into the historian
2018-03-01 17:44:10 -07:00
9e16937914
Delete the Discovery event
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Not useful to the accountant.
2018-03-01 17:02:41 -07:00
f705202381
No need to hash data that's already hashed to create the signature
2018-03-01 16:39:09 -07:00
