A new watermarking technique based on LUT replacement is proposed.Firstly
the watermarks are embedded into the memory logic array block(MLAB).Then
use a MLAB-based RAM to replace the corresponding LUT of original IP core.Because of the property of MLAB
the signatures embedded in MLAB can be preserved from the optimization process of EDA tools.The experimental results show that the method is more effective.The overheads and timing penalty of watermarking are very low
compare to other LUT-based watermarking technique.