| 摘要 |
<p>A communication network (12) encrypts a first portion (63A) of a transaction (60A, 60B) associated with point-to-point communications (23, 25) using a point-to-point encryption key (27). A second portion (65) of the transaction (60A, 60B) associated with end-to-end communications is encrypted using an end-to-end encryption key (46).</p> |
