AHB: Post-Quantum Ad Hoc Blockchain for Private Barter (Extended Abstract)

Off-chain blockchain contracts are useful for parties who wish to keep the details of their contract's business logic private. The ad hoc installation of blockchain instances on mutually agreed-upon servers forms a reliable infrastructure for such contracts. We detail the core post-quantum algorithmic ingredients for structuring ad hoc blockchain (AHB) infrastructure and contracts. The initialization of AHB involves agreement on servers and blockchain software, such as Ethereum or the post-quantum SodsBC versions [13]. These choices, in turn, are approved by the digital signatures of the contract binding parties.