Method and arrangement for variably generating cryptographic...
Method and device for franking postal deliveries
Method and device for generating a single-use financial...
Method and device for generating a single-use financial...
Method and device for performing electronic transactions
Method and mechanism for vending digital content
Method and postal apparatus with a chip card write/read unit...
Method and program for preventing unfair use of software
Method and system for a service provider to control exposure...
Method and system for a virtual safe
Method and system for accepting non-harming mail at a home...
Method and system for administering storage medium
Method and system for anonymizing purchase data
Method and system for authenticating accounts on a remote...
Method and system for automatically distributing fees,...
Method and system for automatically harmonizing access to a...
Method and system for billing on the internet
Method and system for brokering excess carrier capacity
Method and system for commerce with full anonymity
Method and system for conducting a transaction over a network