针对传统基于插值多项式的秘密分享方案,需要复杂的多项式运算,当涉及的数据比较大时,运算效率特别低的问题,提出一种结合数据分块方法以及仅需要在GF(2)上的异或运算的秘密分享方案,并应用于大规模数据的安全保护机制。理论分析与实验结果表明,与传统基于插值多项式的秘密分享方法相比,所提方法在运行效率上提升了19.3%。
The traditional secret sharing schemes based on interpolation polynomial require a heavy computational cost. When the data is large, the efficiency of operation is particularly low. Therefore, a new secret sharing scheme for protecting the security of large scale data was proposed. The proposed scheme used the data block's method and need the exclusive-OR (XOR) operation over GF(2) only. The theoretical analysis and experimental results show that, compared to the traditional secret sharing scheme based on interpolation polynomial, the new scheme is increased by 19.3% in the operational efficiency.