Analysis of a Bitcoin debit card : Design of a novel Bitcoin payment system
Abstract: This thesis introduces a debit card based payment system that aims to provide fast in-store payments using Bitcoin. The system introduces physical constraints to Bitcoin payments to enable stores to accept payments before they are in a block.The proposed system was tested in a proof of concept model to estimate the time itwould take to pay with the system on the real Bitcoin network. A security analysis was performed to validate system security and to point out potential problems. The security analysis was done by interviewing five experts from different organizations to receive different views on the system. The analysis of the system indicated that it could potentially be fast enough to be used in stores, however security problems exist and need to be considered.
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