June 11, 2019 3:55 am

codablock (Dash Core Dev) interview on btc-echo (??)

Tweeted:

https://twitter.com/btcecho/status/1138028033225437184?s=21

Full Story:

Alexander Block von DASH im Interview: „Mit LLMQs werden Sybil-Attacken unmöglich“

Highlights include a brief bio, misunderstandings of DASH, dangers of tribalism, and more details about ChainLocks.

DASH is sybil-resistant due to masternodes (MNs)
Long Living Masternode Quorums (LLMQs) are regularly generated (for which 400 MNs are randomly selected)
These MNs still follow normal consensus rules (longest chain), but do an additional “testimony” for which block it saw first
If 60% of MNs in LLMQ testify for a block, then all nodes will reject any other block (preventing re-orgs / 51% attack)
LLMQs require little bandwidth due to BLS signatures
To attack the network, one needs to control a virtually impossible proportion of the network
Even if an attacker (improbably) does so, the worst it can do is prevent a ChainLock, and the network falls back to the usual proof-of-work security
A ChainLock block must also still be valid according to all usual rules (e.g. no double-spends or invalid signatures), otherwise network rejects it
LLMQs allow automatically instant transactions that can be chained
PrivateSend also automagically confirmed via InstantSend, thus PrivateSend mixing process will be faster too
Upcoming “Decentralized API” (DAPI) will use LLMQs to validate user objects
Expect LLMQs to be upgraded (better performance and less bandwidth)
Always backporting changes from Bitcoin to Dash, so as not to lose touch
Blockchain users coming, will provide foundation for Evolution platform

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