Not only does boosting its security technology increase its integrity among users as an e-commerce hub, e-signature technology could help Google (NASDAQ:GOOG) develop its mobile payment capabilities to compete.

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The document goes on to describe an alternative method using face or eye recognition technology that can be used not just for security purposes, but for possible e-commerce solutions like completing an online transaction.

ENGADGET: Apple files patent application for fingerprint sensor that can be transparent or opaque