Side-channel attacks are one of the security threats to the chip-level devices of the communication systems. To strengthen chip-level cryptographic devices against side-channel attacks, a current equalizer that weakens the current difference is proposed, which barely changes the original design flow and is resistant to physical teardown. This method overlays (metal-insulator-metal) MIM capacitors on top of the critical modules in chip-level components, thus weakening the differences in supply current at different inputs. Meanwhile, the proposed countermeasure is an anti-physical teardown, due to the way the MIM capacitors are connected longitudinally to the power network of the key modules. Experimental results show that this approach is highly resistant to DPA, which has the lowest security evaluation metrics value and area overhead than three existing DPA countermeasures.

侧信道攻击是通信系统芯片级设备面临的安全威胁之一。为加强芯片级密码器件抗侧信道攻击，提出了一种弱化电流差的电流均衡器，几乎不改变原设计流程，抗物理拆解。这种方法将（金属-绝缘体-金属）MIM 电容器覆盖在芯片级组件的关键模块之上，从而削弱了不同输入端的电源电流差异。同时，由于 MIM 电容器纵向连接到关键模块的电源网络的方式，建议的对策是反物理拆卸。实验结果表明，该方法对 DPA 具有很强的抵抗力，