Microsoft, U.S. Postal Service offer electronic postmarking

IDG News Service - A new software plug-in from the U.S. Postal Service (USPS) and Microsoft Corp. being unveiled today is designed to provide the same kind of security for digital documents that a sealed envelope and postmark provide for paper mail.
Slated to be announced at the launch for Microsoft's Office 2003, the Electronic Postmark, or EPM, extension to the new version of the software provides a way for the product's broad user base to sign and secure documents in a way that is legally binding, according to Chuck Chamberlain, manager of business development at the USPS.
The program uses technology developed by Microsoft and content security company AuthentiDate Inc. It allows a document's creator to save a unique time- and date-stamped record based on the file's exact content in an EPM repository maintained by the USPS, according to AuthentiDate.
At any time over the next seven years, subsequent recipients can check a document against the version stored in the repository to verify its authenticity, the company said.
The EPM technology complies with standards set forth in the U.S. Electronic Signatures in Global and National Commerce Act of 2000, which gave legal status to digital signatures. However, without a case to test the validity of the technology, there is no way to know whether courts will accept EPMs, Chamberlain said.
To use the service, customers must be running either Microsoft Office XP or Office 2003 and download a special Office EPM extension developed by the USPS and AuthentiDate, according to Richard Reichgut, vice president of marketing at AuthentiDate.
Customers must also set up an EPM account through the USPS Web site and have a valid digital certificate to sign the documents, Chamberlain said. While certificate authority GeoTrust Inc. is offering digital certificates for use with the program, certificates from other authorities can be used as well.
Once installed, the Office extension adds an EPM toolbar to Microsoft Word with options for applying electronic postmarks to documents, checking the EPM on a document and managing the USPS EPM account, Reichgut said.
Clicking the Apply EPM button will launch a step-by-step process for locking the document's content, signing it with the user's digital certificate and placing a record of the signed document in the USPS EPM repository. Once the document has been signed, a USPS EPM logo will be affixed to the document, indicating that it has been signed and the content is valid.
For documents that need to be signed by multiple parties, such as contracts and nondisclosure agreements, the document's author can attach

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