The encrypted prints themselves are specific to the products software engine.This makes reverse mapping of stored access maps nearly impossible. The original print image used to map the unique identifiers is then deleted. Stored prints are mapped using 25 to 40 unique segments of print, which are then stored as a template and encrypted.How does a DigitalPersona fingerprint reader work? Fingerprint readers are used in police stations, security industries, and office settings. DigitalPersona fingerprint reader computer scanners are able to replace conventional alphanumeric logins or complement them for enhanced security. DigitalPersona Fingerprint Reader Computer Scannersįingerprint scanners combine convenience and security into an easy-to-use USB plug-and-play scanner.