| 摘要 |
<p>A security module (100) that is preferably tokenless and is used in telephone communications (e.g., cellular) to secure a transmitted bit stream. The module (100) provides traffic encryption, performed by encryption engine (133). Key exchange is performed by processor (120). Key protection and algorithm protection are provided by secure processor (130). The module provides encryption and key processing using a programmable information security architecture. Preferably, the module does not use a physical device, such as a key or a card, to unlock the security features. Instead, the security features preferably all reside within the security module (100) and are unlocked by a personal identification number entered through keypad (152).</p> |
