关键词: 组合指纹, 模板保护, Bloom过滤器, 分块

Abstract: Aiming at the problem that fingerprint combination template protection method is poor in fingerprint authentication, which leads to the high error rate of retrieval, a new algorithm based on Bloom filter and block of fingerprint combination template protection is proposed. The proposed method divides Minutia Cylinder Code（MCC） of the original fingerprint combination template into Bloom filters to form new fingerprint template. This algorithm can effectively improve the authentication of the fingerprint template, reduce the error rate of the fingerprint retrieval, and improve the matching accuracy. The simulation results show that the algorithm can effectively improve the authentication when the fingerprint is combined to form the template, while ensuring the privacy of fingerprints, in the fingerprint matching process, the error rate is reduced, improves the accuracy of fingerprint matching.

Key words: fingerprint combination, template protection, Bloom filters, block