1. Copyright © 1999, Financial Services Technology Consortium. All rights reserved. Browser Support for Signing and Submitting Forms Milton M. Anderson Financial Services Technology Consortium miltonma@gte.net W3C Signed-XML Workshop April 15-16, 1999

2. Copyright © 1999, Financial Services Technology Consortium. All rights reserved. Signing XML Documents Displayed as Forms An XML echeck could be displayed using XML Parts of the echeck could be displayed as a form, e.g. payto, date, amount, currency There could be a “sign” button to sign the echeck Signing should sign form entries, pre-set data, necessary parts of the style sheet, e.g. legal notice The same mode of operation could be used for many other business documents. Ideally, all browsers, word processors, spreadsheets, mail agents, etc. that use XML documents would have built-in support for “sign” and “verify” buttons. Could select parts of document to be signed Could highlight parts of the document that are verified as signed by others Should be able to cut and paste between signed documents without necessarily breaking the existing signatures

3. Copyright © 1999, Financial Services Technology Consortium. All rights reserved. XML DTD XML Processor Style Sheet Processor XSL Style Sheet HTML Form Render, Display, and Input On Submit URL-Encoded Name-Value Pairs Forms Support in Current XML and Browser Infrastructure XML Post via http or mailto XML DOM

4. Copyright © 1999, Financial Services Technology Consortium. All rights reserved. XML Schema XML Processor Style Sheet Processor XSL Style Sheet HTML Form Render, Display, and Input On Sign or On Verify Signed XML XML Document Signing and Sending XML Post via http or mailto XML DOM On Submit Inverse XML Processor Crypto and Smartcard Services