Data privacy protection method and device based on biological characteristics

The invention discloses a data privacy protection method and device based on biological characteristics, which are used for solving the problem that illegal persons may steal a secret key of a user through illegal means to illegally obtain privacy data of the user, and the security of the privacy data of the user is harmed. The method comprises the steps of collecting biological characteristics of the user; converting the collected biological characteristics into a base64 coded character string as a character string to be detected; determining a standard character string matched with the character string to be detected from a plurality of pre-stored standard character strings; and acquiring a private key corresponding to the matched standard character string, and returning the private key to the user. According to the method, the security of the key can be well protected, and the reliability of user privacy data protection is improved. 本申请公开了一种基于生物特征的数据隐私保护方法及装置，用以解决不法者可能会通过非法手段，窃取用户的密钥，以非法获取用户的隐私数据，危害用户的隐私数据