RanDAOs

RanDAO Simple

Don't generate random number, let's brute force it.

Idea

• A think about a number and ask B to guess the result.
• B give A the results, A pick 6 best numbers.
• A combine 6 numbers and The Divine's power by using XOR operator.

Proof of Work & Zero knowlegde

A give a number Diff

let Seed = TheDivine.GetPower()

A pick 8 bytes from Seed create Fingerprint: let Fingerprint = uint64(Seed)

A create a campaign for anyone to submit numbers.

B Submit two numbers Key and Pow:

let Result = sha3^Pow(Seed + Key)

Pick 8 bytes from Result: set Snapshot = uint64(Result)

if BitCompare(Snapshot, Fingerprint) <= Diff then Key and Pow is accepted.

BitCompare() give the number of difference bits between Snapshot and Fingerprint

Pick 6 key values from all contributors, which have geater Pow and lower Diff bits: Keys[]

let Random = TheDivine.GetPower() ^ Keys[0] ^ ... ^ Keys[5];

Random is final result.