Niclas Hedhman created POLYGENE-311:
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Summary: Blockchain Entitystore
Key: POLYGENE-311
URL: https://issues.apache.org/jira/browse/POLYGENE-311
Project: Polygene
Issue Type: New Feature
Reporter: Niclas Hedhman
Assignee: Niclas Hedhman
Attachments: blockchain-architecture.png
With blockchain technology becoming more and more prevalent in our industry, we
should add support for blockchain operations and storage.
The first and easiest way to get enough experience with blockchain is to
implement an EntityStore being backed by a blockchain.
Since there are some many different ways one can go about it, we need a great
deal of flexibility for the users. A proposed architecture is attached to this
issue, but also present in Git
https://github.com/apache/polygene-java/blob/develop/artwork/blockchain-architecture.png
The major recurring flexibility concern will revolve around "signing". It needs
to be possible for Polygene applications to delegate to the actual user of such
application, as apps shouldn't hold private keys of its users.
The storage of the data needs to be split in two, as storage on blockchain is
relatively expensive, so the blockchain is primarily for storing Identities
back a the secondary store which should be immutable, fully distributed and
preferably decentralized. One such store exists, namely IPFS. However, if
decentralization is not a requirement, then HDFS, Cassandra, SQL and almost any
type of store could be used.
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