Aiming at the demand of contactless smart card, this paper proposes a new mutual authentication key exchange protocol based on low power computing devices.

针对非接触式智能卡的需求，提出一种基于有限计算能力的相互认证密钥交换协议。

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On the other hand, I don't do any verification and give any comment to the amulet from other seller about the Authentication and Power.

另一方面，我不会对从别家请到佛牌进行力量的验证和真伪的辨别。

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