| 摘要 |
A Smart Device (102) securely validates an incoming message emanating from an external source (906). A method embodiment comprises the steps of a SPARC Internet Security Corporation (SISC 900) verifying (912) that the incoming message contains a pre-stored validity identifier (901). When the incoming message contains the correct validity identifier (901), SSC (900) appends (914) a SSD Unsolicited Transaction Identifier (SSD UT ID) to the message. The SSD UT ID comprises a unique security device (104) identifier and an optional message count. SISC (900) then sends (915) the message and the SSD UT ID to the Smart Device 102. The invention does not require encryption, PINs, or passwords. In an embodiment of the invention, Smart Device (102) is not allowed to communicate directly with external networks (506), but rather must do so via SSD (104). This removes the security burden from Smart Device (102), speeding and simplifying transactions. |
