Blar i Institutt for informasjonssikkerhet og kommunikasjonsteknologi på forfatter "Carr, Christopher"
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Bitcoin Unchained
Boyd, Colin Alexander; Carr, Christopher; Boyen, Xavier; Haines, Thomas (Journal article, 2017)Bitcoin’s distributed ledger is an innovative way of solving the double spending problem in a decentralised system. However, it causes incompressible transaction delays and incentivises consolidation of mining power. We ... -
Key recovery: Inert and public
Boyd, Colin Alexander; Boyen, Xavier; Carr, Christopher; Haines, Thomas (Journal article; Peer reviewed, 2017)We propose a public key infrastructure framework, inspired by modern distributed cryptocurrencies, that allows for tunable key escrow, where the availability of key escrow is only provided under strict conditions and ... -
Security Properties of Light Clients on the Ethereum Blockchain
Paavolainen, Santeri; Carr, Christopher (Peer reviewed; Journal article, 2020)Ethereum is a decentralized blockchain, known as being the second most popular public blockchain after Bitcoin. Since Ethereum is decentralised the canonical state is determined by the Ethereum network participants via a ... -
Valuable Puzzles for Proofs-of-Work
Boyd, Colin Alexander; Carr, Christopher (Journal article; Peer reviewed, 2018)Proof-of-work (PoW) is used as the consensus mechanism in most cryptocurrencies. PoW-based puzzles play an important part in the operation and security of a cryptocurrency, but come at a considerable energy cost. One ...