| 摘要 |
A process of hiding a key or data inside of random noise is introduced, whose purpose is to protect the privacy of the key or data. In some embodiments, the random noise is produced by quantum randomness, using photonic emission with a light emitting diode. When the data or key generation and random noise have the same probability distributions, and the key size is fixed, the security of the hiding can be made arbitrarily close to perfect secrecy, by increasing the noise size. The hiding process is practical in terms of infrastructure and cost, utilizing the existing TCP/IP infrastructure as a transmission medium, and using light emitting diode(s) and a photodetector in the random noise generator. In some embodiments, symmetric cryptography encrypts the data before the encrypted data is hidden in random noise, which substantially amplifies the computational complexity. |
