Method for paying invoices
Method for piracy protection of an apparatus and arrangement...
Method for preventing fraudulent use of credit cards and...
Method for printing digital works
Method for private personal identification number management
Method for proof of transaction
Method for protecting a device against operation with...
Method for providing database security
Method for providing individually customized content in a networ
Method for purchasing items over a non-secure communication...
Method for re-keying postage metering devices
Method for reissuing digital tokens in an open metering system
Method for reissuing digital tokens in an open metering system
Method for reissuing indicium in a postage metering system
Method for remotely authorizing a payment transaction file...
Method for removing funds from a postal security device
Method for rental storage system
Method for requesting and refunding postage utilizing an...
Method for secure communication in a telecommunications system
Method for secure electronic commercial transaction on-line...