Multi-Dimensional Hash Chains and Application to Micropayment Schemes
<|reference_start|>Multi-Dimensional Hash Chains and Application to Micropayment Schemes: One-way hash chains have been used in many micropayment schemes due to their simplicity and efficiency. In this paper we introduce the notion of multi-dimensional hash chains, which is a new generalization of traditional one-way hash chains. We show that this construction has storage-computational complexity of O(logN) per chain element, which is comparable with the best result reported in recent literature. Based on multi-dimensional hash chains, we then propose two cash-like micropayment schemes, which have a number of advantages in terms of efficiency and security. We also point out some possible improvements to PayWord and similar schemes by using multi-dimensional hash chains<|reference_end|>
@article{nguyen2005multi-dimensional,
    title={Multi-Dimensional Hash Chains and Application to Micropayment Schemes},
    author={Quan Son Nguyen (Hanoi University of Technology, Vietnam)},
    journal={arXiv preprint arXiv:cs/0503060},
    year={2005},
    archivePrefix={arXiv},
    eprint={cs/0503060},
    primaryClass={cs.CR}
}