| 摘要 |
<p>Secure devices (e.g., a cryptophone, a cryptofax, a computer or other such electronic device) have an encryptor (10) and a digitizer (12), the digitizer for receiving an input and generating an output supplied to the encryptor. According to the invention, the encryptor and the digitizer are coupled either physically, logically or through non-tamperable software to guarantee that a given ciphertext is the encryption, generated by the encryptor, of an output generated by the digitizer.</p> |
