The communication overhead and storage requirement comparison.

<p>The communication overhead and storage requirement comparison.</p

Algorithm .

<p>Algorithm .</p

The user registration phase.

<p>The user registration phase.</p

Symbols and corresponding notions in the BAN logic.

<p>Symbols and corresponding notions in the BAN logic.</p

The security comparison.

<p>The security comparison.</p

The computation cost comparison.

<p>The computation cost comparison.</p

The mechanism of fuzzy extractor.

<p>The mechanism of fuzzy extractor.</p

The authentication phase.

<p>The authentication phase.</p

The login phase.

<p>The login phase.</p

The server registration phase.

<p>The server registration phase.</p