A Hierarchical Secret Sharing Scheme Based on Information Dispersal Techniques
A Hierarchical Secret Sharing Scheme Based on Information Dispersal Techniques
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DOI:
10.1007/978-3-030-12146-4_14
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发表时间:
2018-11
期刊:
影响因子:
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通讯作者:
Koji Shima;H. Doi
中科院分区:
文献类型:
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作者:
Koji Shima;H. Doi
Hierarchical secret sharing schemes are known for how they share a secret among a group of participants partitioned into levels. In this study, we consider using a systematic information dispersal algorithm (IDA). We then apply the general concept of hierarchy to the generator matrix used in a systematic IDA and propose anidealhierarchical secret sharing scheme applicable at any level. For perfect privacy, secret sharing schemes depend on the fact that an adversary can only pool at mostshares. However, in our hierarchical scheme, we need to consider an adversary can also poolkor more shares of lower-level participants. Moreover, considering practical use, we present our evaluation of our software implementation.