Contents
Context: full PoS with Casper CBC and sharding will require a verifiable randomness function that is secure and decentralized, in order to randomly select and assign validators, shuffle notaries, and select collation/block proposers. Such a VRF is an ongoing topic of research, and is yet to be specified and implemented.
- Sharding Fork Choice rule PoC with RANDAO and more info, 2018 May 1
- Vitalik's blog post on Randomness with RANDAO preferred
- RANDAO++ plus an implementation of it with RNGesus
- A random beacon as used by Dfinity although note that BLS is prone to 51% attacks while RANDAO++ isn't.
- James' tweet thread analysing Dfinity's BLS randomness beacon in comparison to RANDAO.
- ethresear.ch post: PoSW random beacon. Here is a critique by Vitalik on Gitter.
- the blockhash, generated via PoW, e.g. Ethash. You could use the blockhash as a preimage to hash functions e.g. in RANDAO.
- https://ethresear.ch/t/rng-exploitability-analysis-assuming-pure-randao-based-main-chain/1825
- RANDAO exploitability analysis results
- http://radicalmarkets.com
- https://vitalik.ca/
- http://arimaa.com/money - Sound Money Without Commodities