Are there existing web sites that use a photo as a electronic signature?
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            by Alessandro Vernet
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        Published on 2010-03-26T18:33:13Z
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            2010/03/28
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The use case: to sign a electronic document, users view the document, and if they agree take a picture of themselves with their webcam (done through Flash from the browser). Then a PDF is generated containing the document and the picture in place of signature.
This is a biometric signature, which is not as strong as a digital (cryptographic) signature, but stronger than having users draw their signature, as a photo is harder to forge than a drawn signature.
Has anyone seen this technique being used on an existing web site?
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