Commit Graph

17 Commits

Author SHA1 Message Date
Alexander Block
02b68885a0 Implement CBLSLazySignature for lazy serialization/deserialization
In some cases it takes too much time to perform full deserialization of
BLS signatures in the message handler thread. Better to just read the
buffer and do the actual deserialization when the signature is needed for
the first time (which is can be in another thread).
2019-02-15 15:44:02 +01:00
Alexander Block
6e8f50aa55 Faster default-initialization of BLS primitives by re-using the null-hash 2019-02-15 15:43:51 +01:00
Alexander Block
67a86091aa Implement and use secure BLS batch verification (#2681)
* Implement secure verification in bls_batchverifier

* Rename CBLSInsecureBatchVerifier to CBLSBatchVerifier

* Add unit tests for simple BLS verifcation and CBLSBatchVerifier
2019-02-04 21:58:28 +03:00
Alexander Block
088525bde3 Multiple fixes for LLMQs and BLS batch verification (#2674)
* Check aggPubKey for IsValid() instead of aggSig

aggSig is not reliable here as it might already be initialized by the
previous message.

* Significantly reduce sleep time for each DKG phase

Turns out the DKG is much faster then expected, and waiting multiple
minutes for each phase in a devnet is not much fun.

* Correctly use SIGN_HEIGHT_OFFSET when checking for out of bound height

* Introduce startBlockHeight to make things more explicit
2019-02-01 12:07:21 +03:00
Alexander Block
18950f923e Optimize DKG debug message processing for performance and lower bandwidth (#2672)
* Allow sub-batch verification in CBLSInsecureBatchVerifier

* Implement batch verification of CDKGDebugStatus messages

* Use uint8_t for statusBitset in CDKGDebugMemberStatus and CDKGDebugSessionStatus

No need to waste one byte per member and per LLMQ type.

* Reserve 4k of buffer for CSerializedNetMsg buffer

Profiling has shown that a lot of time is spent in resizing the data
vector when large messages are involved.

* Remove nHeight from CDKGDebugStatus

This field changes every block and causes all masternodes to propagate
its status for every block, even if nothing DKG related has changed.

* Leave out session statuses when we're not a member of that session

Otherwise MNs which are not members of DKG sessions will spam the network

* Remove receivedFinalCommitment from CDKGDebugSessionStatus

This is not bound to a session and thus is prone to spam the network when
final commitments are propagated in the finalization phase.

* Add "minableCommitments" to "quorum dkgstatus"

* Hold cs_main while calling GetMinableCommitment

* Abort processing of pending debug messages when spork18 gets disabled

* Don't ask for debug messages when we've already seen them

"statuses" only contains the current messages but none of the old messages,
so nodes kept re-requesting old messages.
2019-02-01 10:49:01 +03:00
PastaPastaPasta
f123248f1c update copyright (#2648)
* update copyright

* Update copyright in configure.ac and COPYING
2019-01-29 15:53:14 +01:00
Alexander Block
b6346a2f68 Implement CBLSInsecureBatchVerifier for convenient batch verification 2019-01-18 11:57:40 +01:00
Alexander Block
c6be8cfcd6 Allow to skip malleability check when deserializing BLS primitives
Useful when many sigs need to be deserialized and at the same time the hash
of these is never used.
2019-01-09 12:16:11 +01:00
Alexander Block
88f7bf0d82
Don't delete/add values to the unique property map when it's null (#2538)
* Don't delete/add values to the unique property map when it's null

This happens when revoking operator keys, as the revoked MN will then have
the address and operator keys set to the null representation. We shouldn't
add the null value to the unique property map as otherwise future revokes
crash in an assert.

* Assert that no null values are passed to Add/DeleteUniqueProperty

* Check for null values before calling Add/DeleteUniqueProperty

* Apply suggestions from code review

Co-Authored-By: codablock <ablock84@gmail.com>

* Add user generated default constructors to BLS primitives

Fixes build issues on Mac:

In file included from evo/deterministicmns.cpp:5:
./evo/deterministicmns.h:375:24: error: default initialization of an object of const type 'const CBLSPublicKey' without a user-provided default constructor
        static const T nullValue;
                       ^
2018-12-10 08:31:09 +01:00
Alexander Block
63b58b1e92
Reintroduce BLSInit to correctly set secure alloctor callbacks (#2543)
https://github.com/dashpay/dash/pull/2409 removed the need to call the
Init method of the Chia BLS library, but we also accidently removed the
initialization of the secure allocator.
2018-12-10 06:04:48 +01:00
Alexander Block
5e829a3b1b Update Chia bls-signature to latest version (#2409)
Brings in:
1. https://github.com/Chia-Network/bls-signatures/pull/41
2. https://github.com/Chia-Network/bls-signatures/pull/46
3. A few commits from https://github.com/codablock/bls-signatures are now
   merged into upstream.

This removes the need for manual initialization of the BLS library. This is
now done internally and in a thread-safe way.

Also switch to using tags instead of raw commit hashes. Makes testing
easier and also removes the risk of Github deleting commits due to
cleanup jobs.
2018-11-02 00:59:11 +03:00
Alexander Block
70eb710b12
Undefine DOUBLE after include Chia BLS headers (#2400)
These cause compilation errors on some platforms.
Observed this when I tried to cross compile win32
locally on a Debian Stretch machine.
2018-10-31 10:58:02 +01:00
Alexander Block
052af81b4b
Ensure correct order of destruction for BLS secure allocator (#2401)
Uses the same trick as LockedPoolManager::Instance()
2018-10-31 10:57:14 +01:00
Alexander Block
d1debfc267
Implement mt_pooled_secure_allocator and use it for BLS secure allocation (#2375)
* Add pooled_secure_allocator and mt_pooled_secure_allocator

* Use mt_pooled_secure_allocator for BLS secure allocation

The old solution relied on thread-local-storage and was thus not compatible
to libc6 2.11 (which is the minimum supported version we use).

Also, the old solution turned out to be erroneous. It would have crashed
or memory leaked when ownership of CBLSPrivateKey would be handled over
to another thread.

* Add new header files to Makefile.am

* Fix copyright headers of new files

* Bail out early from secure deallocation

* Clean up global BLS keys when shutting down
2018-10-26 07:04:22 +02:00
Alexander Block
7b76bbb575 Update Chia BLS libs to latest master (#2357)
* Undefine ERROR before including chia BLS stuff to avoid warnings

* Update Chia BLS libs to latest master
2018-10-20 17:08:54 +03:00
Alexander Block
e2de632f8c Move handling of size != SerSize into SetBuf/GetBuf (#2356)
* Move handling of size >= SerSize into SetBuf/GetBuf

Instead of performing this in the individual implementations of
InternalSetBuf and InternalGetBuf

* Assert that size if GetBuf is always SerSize
2018-10-20 17:08:40 +03:00
Alexander Block
9c8e4ac76b Move bls stuff from crypto/ to bls/ 2018-10-12 19:39:26 +02:00