The conference will focus on the fields of food tech, life sciences, auto-tech and cyber-security.
"We demand self-examination from of all those who helped carry out the extermination program," Rivlin said. Le Pen denies responsibility for French deportations of Jews to death camps.
Russia's chief rabbi also praised President Putin, who is Le Pen's strong supporter.
The shooter, known to the FBI, was claimed as a "fighter" by the Islamic State terrorist group.
'This recognition underpins the annual events marking the anniversary of the expulsion of the Jews from France.'
Out of the 150,000 Jews living in France, 76,000 were murdered after French authorities shipped them away.
The killer shouted "Allahu Akbar!" as he stabbed her while she lay sleeping in her bed.
Forty of the 50 graves in the tiny 18th century Jewish cemetery were desecrated. The last time, the perpetrators were caught but not punished.
Other than Putin, Le Pen has not been endorsed or even mention by European politicians save for the far-right parties.
"Radical extremists continue to have the ability and motivation to commit mass murder in Europe."
Her Jewish friends include members of the Jewish Defense League in France.
Ziyed Ben Belgacem, 39, was killed on Saturday after he grabbed a soldier, put a gun to his head and told him he wanted to 'die for Allah.'
The police are on site.
'They’ve reached this point ... hooked nose, the alliance of capitalism and Bolsheviks (the red sickle and the cigar) ... Even the [far-right Front National] wouldn’t dare.'
After the attack, the head of the Jewish community in Marseille was widely criticized for telling Jews in his city not to display their yarmulkes in public.
"I call on the government to urgently prepare... a national emergency plan for possible waves of immigration of our Jewish brothers to Israel."
'This is the way to respect international law as well as the security of Israel.'
His lecture at the symposium was titled Writing on the Dark Side of the Recent Past.
When they saw they were wearing yarmulkes they drove ahead, blocked their car's path and attacked the brothers using blunt instruments.
'France defines itself as secular,' Avital explained. 'It is agreed between all parties that they do not want any confusion between state and religion.'