EFFICIENT BROWSER-BASED IDENTITY MANAGEMENT PROVIDING PERSONAL CONTROL AND ANONYMITY TECHNICAL FIELD The present invention is related to a method and system for providing an identity-related information about a person to a requesting entity. Moreover, the invention is related to a method for transferring the identity-related information hosted on a location entity, also referred to as wallet, to the requesting entity. BACKGROUND OF THE INVENTION Identity management in its widest sense means management of all the personal information about a | person, including at least all the person’s digital relations. Over the next decade, identity management systems in this wide sense are likely to evolve. Short-term, identity management is typically said for web single sign-on with the transfer of a small amount of data about a person. Older system types related to identity management are classical single sign-on products, public-key infrastructures, and form fillers. WO 03/091861 PCT/IB03/01172 The main business case is a general boost of electronic business: Identity management is an infrastructure issue where a standard, like the Internet and web standards, may benefit almost all parties. Single sign-on enables a person or user to log in to different organizations while remembering only one password without allowing all the organizations to impersonate the person towards each other | | as simply as using the same password directly with all organizations would. Recently, identity management, in particular single sign-on, are known, for example, by the Liberty Alliance (URL: http://www.projectliberty.org) or by Microsoft Corporation’s Passport system (URL: http://www.passport.com). The so-called Passport system or short Passport of Microsoft Corporation is a web service operated exclusively by Microsoft Corporation that allows users to sign in to web sites and conduct e-commerce transactions. Less exclusive operations have been promised, but not revealed. Passport currently includes an authentication service, a specialized authentication service just for kids, and an express purchase service.