# What is the hardness in Decisional Linear Assumption (DLIN)?

I had understood what does the DLIN assumption means and here is a related question. But I fail to understand the 'real hardness' in this problem.

I would be grateful if someone can help me to understand this.

• What is the 'real hardness' in the DDH problem? – user991 Sep 8 '15 at 10:24