| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a key storage device for constructing a biometric authentication system that safely manages encrypted templates outside a biometric authentication device. <P>SOLUTION: The key storage device includes a template encryption key for decoding the encrypted template, and an authentication key to be used for mutual authentication among terminals using the template encryption key when the template encryption key is enabled. The key storage device receives package data in a format which can be restored only with a key storage device storing the template encryption key, restores the template encryption key and the authentication key from the received package data, stores the keys in a nonvolatile memory having tamper resistance, authenticates mutually with the terminal using the authentication information based on the authentication key stored in the nonvolatile memory when receiving a request to use the template encryption key from the terminal, and enables the template encryption key stored in the nonvolatile memory by the terminal when the mutual authentication is successful. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
