In this paper, we present an utterance verification method based on phoneme confusion, which not only have good performances in utterance verification, and can optimize and adjust the performances according to system requirements.

Prohibit Confusion——Determine the Underline of the Scope to the trademark right;

Court of first instance s judgment is that the defendant infringed the plaintiff s exclusive right of trademark and carried out unfair competition,whose theoretical basis is still traditional theory of confusion.

However, China still protects them from the theoretics of the confusion though it has strengthened the protecti.

The paper introduces existing code obfuscation technology first,then analyzes two popular obfuscation technologies named opaque and control flow flattening,and finally explores some open problems and research trends on obfuscation.

They take various obfuscation techniques to hide themselves in order not to be statically analyzed.

This paper describes a design idea of conditional branches-based software watermarking,and applies obfuscation and tamper-proofing technology to enhance watermark s robustness during the process of implementing.