Discussing blockchain databases in the literature survey

[davidtang1006]

20200207~20200212 Discussing blockchain databases in the literature survey

Useful links

• Permissions in BigchainDB
• BigchainDB, Privacy and Private Data
• Proof of Stake FAQ from Ethereum
• Tendermint Explained—Bringing BFT-based PoS to the Public Blockchain Domain
• The latest gossip on BFT consensus
• The update items of BigchainDB 2.0

BigchainDB, Privacy and Private Data

Basic Facts

• Every node in a BigchainDB network has a full copy of all the stored data.
• Everyone given access to a node via the BigchainDB HTTP API can find and read all the data stored by BigchainDB. The list of people with access might be quite short.
• If the connection between an external user and a BigchainDB node isn’t encrypted (using HTTPS, for example), then a wiretapper can read all HTTP requests and responses in transit.

Storing Private Data Off-Chain

One can use BigchainDB to

• Keep track of who has read permissions (or other permissions) in a third-party system.

Further Notes

• https://github.com/ethereum/wiki/wiki/Proof-of-Stake-FAQ provides explanations about proof of stake.
• It turns out the Tendermint appears to be quite complicated. https://blog.cosmos.network/tendermint-explained-bringing-bft-based-pos-to-the-public-blockchain-domain-f22e274a0fdb and https://arxiv.org/pdf/1807.04938.pdf are the materials for understanding it.
• This workshop talk discusses blockchain consensus schemes.
• The update items in Blockchain 2.0 seems interesting. I may want to mention it later.

[davidtang1006]

Sadly, I may have overdone the literature survey in e943f16951c9981093508ba21831b30ed70a0995. It may be trimmed down later, but I believe this literature survey is informative.