ABSTRACT

In “conventional” biometric systems, there are many situations

where it is important to consider security and privacy issues.

For example, biometric-related information is not secretly stored

or transmitted, which implies that compromise of biometric

information would lead to unauthorized access and information

misuse, and the enrolled biometric data are not revocable, which

implies that compromise of biometric data will result in permanent

lost of biometric traits. Since the biometric data are permanently

associated with a user and the biometric resources of a user

are limited, the legitimate user would not be able to regenerate

another set of valid biometric identifiers. The security and privacy of

biometric data have gained tremendous interest among researchers;

however, serious criticisms against the biometric technology have

not been addressed satisfactorily. Thus, we devote a considerable

amount of time to discuss the security and privacy of biometric data

as well as the existing solutions to the problems in this chapter.