指纹算法是指纹锁安全和方便与否的核心中枢。现在市场上运用最多的是基于指纹考勤的算法，这些算法对安全和方便的要求并不高，属于比较简单的图像比对系统。DESSMANN采用的是德国HIEYIE的指纹算法，其安全性能明显高于考勤类的算法，该算法的核心特点是：
Fingerprint algorithm is the core of the security and convenience of fingerprint lock. At present, the most widely used algorithm in the market is based on fingerprint attendance. These algorithms do not require high security and convenience, and belong to a relatively simple image comparison system. Dessmann adopts the fingerprint algorithm of hieyie in Germany, whose security performance is significantly higher than that of attendance class. The core features of the algorithm are as follows:
1、可对指纹进行360度的旋转识别；
1. The fingerprint can be identified by 360 degree rotation;
2、对干性手指有比较好的识别效果；
2. It has a good recognition effect on dry fingers;
3、可根据手指的季节性差别进行智能修补；
3. Intelligent repair can be carried out according to the seasonal difference of fingers;
4、拒识率低的同时将误识率控制在百万级别。
4. While the rejection rate is low, the false recognition rate is controlled at the level of one million.