Verifying a user identity

A method comprising;

• acquiring, by use of a processor, fingerprint user biometric information with a biometric acquisition module;
• storing the user biometric information and one or more authentication templates for fingerprints for a plurality of humidity ranges;
• acquiring environment information comprising an acquired environment value of a humidity for the biometric acquisition module that corresponds to the user biometric information;
• authenticating the user biometric information to verify a user identity using a corresponding authentication template of one or more authentication templates that comprises a given humidity range that comprises the acquired environment value, wherein fingerprint user biometric information is authenticated in response to a consistency ratio of feature points exceeding a preset, percentage;
• determining that the corresponding authentication template is mismatched in response to an authentication duration exceeding a specified time;
• and
• in response to determining the corresponding authentication template is mismatched, generating a new authentication template based on the user biometric information for a new humidity range based on the acquired environment value.

A system comprising;

• a biometric acquisition module that acquires fingerprint user biometric information;
• a sensor that acquires environment information comprising an acquired environment value of a humidity for the biometric acquisition module that corresponds to the acquired user biometric information;
• a memory module that stores the user biometric information, the environment information, and one or more authentication templates;
• a processing module that:
• authenticates the user biometric information to verify a user identity using a corresponding authentication template of the one or more authentication templates that comprises a given humidity range that comprises the acquired environment value, wherein fingerprint user biometric information is authenticated in response to a consistency ratio of feature points exceeding a preset percentage;
• determines that the corresponding authentication template is mismatched in response to an authentication duration exceeding a specified time;
• and
• in response to determining the corresponding authentication template is mismatched, generates a new authentication template based on the user biometric information for a new humidity range based on the acquired environment value.