"Digital authentication has been the holy grail of Internet security policy since the early '90s," said James Lewis, cyber security expert and senior fellow at the Washington-based Center for Strategic and International Studies. This latest effort, he said, has a better chance of succeeding than previous tries, "but we need to see how much opposition it runs into and whether people will actually use it even if it gets deployed.".. Ari Schwartz, vice president at the Center for Democracy and Technology, said the unfettered openness of the Internet is what allowed it to grow and prosper but also created security gaps that need to be addressed. But any move to improve identity systems raises many concerns. "The whole thing is very difficult to do and privacy is one of the more difficult pieces of it," said Schwartz, adding that the system has to balance efforts to maintain privacy while still finding out enough about someone to ensure his identity. Read full article.