Practical Escrow Protocol for Bitcoin

Yang, Xiao Qi; Lau, Wang Fat; Ye, Qingqing; Au, Man Ho; Liu, Joseph K.; Cheng, Jacob

doi:10.1109/tifs.2020.2976607

Cited by 11 publications

(1 citation statement)

References 19 publications

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“…Authors of Yang et al. ( 2020 ) propose a practical escrow protocol for Bitcoin, which is computationally efficient, round efficient and privacy preserving by using the practical verifiably encrypted ECDSA scheme designed by the authors.…”

Section: Related Workmentioning

confidence: 99%

RETRACTED ARTICLE: Enhanced post-quantum key escrow system for supervised data conflict of interest based on consortium blockchain

Sun

Zhao

et al. 2023

J Comb Optim

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Consortium blockchains offer privacy for members while allowing supervision peers access to on-chain data under certain circumstances. However, current key escrow schemes rely on vulnerable traditional asymmetric encryption/decryption algorithms. To address this issue, we have designed and implemented an enhanced post-quantum key escrow system for consortium blockchains. Our system integrates NIST post-quantum public-key encryption/KEM algorithms and various post-quantum cryptographic tools to provide a fine-grained, single-point-of-dishonest-resistant, collusion-proof and privacy-preserving solution. We also offer chaincodes, related APIs, and invoking command lines for development. Finally, we perform detailed security analysis and performance evaluation, including the consumed time of chaincode execution and the needed on-chain storage space, and we also highlight the security and performance of related post-quantum KEM algorithms on consortium blockchain.

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Section: Related Workmentioning

confidence: 99%