Iran and six world powers were holding nuclear talks behind closed doors Friday in Istanbul even though Tehran is still refusing to curb its nuclear activities.
Said Jalili, Iran's chief nuclear negotiator, is leading the Islamic Republic's delegation.
"We will absolutely not allow the talks to go into the issue of our basic rights - like the issue of suspending [uranium] enrichment," Jalili's aide, Abolfazi Zohrevand, told reporters.
"We will focus on cooperation," he said. "The talks have been positive because both sides have come to take positive steps," Zohrevand said.
The group of world powers, led by EU foreign policy chief Catherine Ashton, consists of the U.S., Britain, France, Russia, Germany and China.
So far the only thing that has been able to slow down Iran is a computer worm called Stuxnet.
The New York Times recently reported that Israel built a nuclear centrifuge similar to Iran's just to test the cyberattack in advance.
Experts say the attack may have delayed Iran's nuclear agenda by several years. But Prof. Efraim Inbar, director of Israel's Begin-Sadat (BESA) Center for Strategic Studies, told CBN News the Iranians have made great efforts to overcome the attack.
"I'm not sure this is a final step in stopping the Iranians. We should not underestimate the engineering capabilities of Iran," Inbar said.
"They have very good engineers and probably with time they will be able to overcome this hurdle and then the free world will have to find something else in order to take care of the Iranian nuclear program," he added.
Many Mideast analysts believe that if Iran does not have a regime change soon, the free world will have to take military action to destroy parts of Iran's nuclear program.