| 摘要 |
Embodiments of the invention disclose a secret key negotiating method and device, wherein the method comprises: generating, by a terminal, a secret key seed; determining, by the terminal, a first communication secret key of the communication in accordance with the secret key seed; and transmitting, by the terminal, the secret key seed to Cloud, so that the Cloud determines a second communication secret key of the communication in accordance with the secret key seed. In an embodiment of the invention, the secret key seed used in encryption is generated by the terminal and then the secret key seed is informed to the Cloud, so that the terminal and the Cloud both generate a corresponding communication secret key in accordance with the secret key seed, that is, a communication secret key can be determined by one interaction, and thus the times of interaction of secret key negotiation is reduced, and the complexity in secret key computation and the communication cost are reduced. |
