| 摘要 |
<p>The method involves associating a first smart card (10) with an apparatus (18) e.g. computer and automated cash dispenser, and quantifying value units of the smart card by identifier or shared key of the smart card. The quantified value units are stored in the apparatus. A second smart card (11) is associated with the apparatus. The value units are deciphered in the second smart card by identifier or shared key of the second smart card. The value units are stored in the second smart card. The value units of the first Smart card are signed.</p> |
