Hardware architecture for TV chips which can resist power side channel attack

In the hardware design, we use the single-round-iterative architecture.  For the  SBOX in the block cipher algorithm, we use the computational structure that changes the inverse and affine transform and adopt secret sharing method in order to achieve different power consumption in the same pattern.

In order to meet the cooperated company＇s request, The technique focus on non-linear module SBOX.  By using secret sharing masking method, the work can resist side channel attack with high throughput, and this is suitable for high resolution TV box encryption chip.