지문 인식 기반의 개인키 위탁 시스템의 설계

Abstract

There are some problems on the system that uses a password comprising a digital signature to identify the secret key owner under the public key infrastructure. For example, the password can be difficult to remember or easy to be disclosure, and users should make more complex password to protect it. A number of studies have been proceeded in order to overcome these defects using the fingerprint identification technologies, but they need to change the current standard of public key infrastructure. On the suggested private key escrow system, the private key can be with drawn only through the enrollment and identification of a fingerprint template after it is saved to a reliabel third system. Therefore, this new private key escrow system can remove previous inconveniences of managing the private key on current public key infrastructure, and it exhibited superior results in terms of the evaluation items when compared with the integrated method of the existing fingerprint identification and public key infrastructure.