| 摘要 |
<p>A method of transfer transferring a right to access a service from a device (2) of a lender (P) to a device (25) of a borrower (E), the method comprising: holding an access right to a service; obtaining authentication data associated with the borrower (E) or the borrower's device (25); duplicating said at least one access right (D1-D2); using a cryptographic key associated with the device (2) of the lender (P) to calculate a cryptogram containing authentication data and duplicated rights; and sending the cryptogram to the device (25) of the borrower (E). Correspondingly, the invention also provides a method of controlling access to such a service by a service provider, and also a method of managing a transfer of such access rights from the device (2) of the lender (P) to the service provider.</p> |
