Collusion attacks and fair time-locked deposits for fast-payment transactions in Bitcoin

• Main Authors: YU, Xingjie, THANG, Shiwen Michael, LI, Yingjiu, DENG, Robert H.
• Format: text
• Language: English
• Published: Institutional Knowledge at Singapore Management University 2019
• Subjects: Time-locked; Collusion attacks; Bitcoin; Fair deposit; Double-spending; Finance and Financial Management; Information Security
• Online Access: https://ink.library.smu.edu.sg/sis_research/4526; https://ink.library.smu.edu.sg/context/sis_research/article/5529/viewcontent/Collusion_Attacks_2019_av.pdf
• Institution: Singapore Management University

In Bitcoin network, the distributed storage of multiple copies of the block chain opens up possibilities for doublespending, i.e., a payer issues two separate transactions to two different payees transferring the same coins. While Bitcoin has inherent security mechanism to prevent double-spending at...