WASHINGTON -- Senior US officials have said that Iran has privately acknowledged it made a mistake by attacking commercial vessels in the Strait of Hormuz and wants to resume negotiations with the Trump administration, while Washington is demanding Tehran publicly commit to keeping one of the world's busiest shipping lanes open.Speaking on a background call with reporters on July 10, the officials said Iranian representatives are expected to meet Omani mediators on July 11 as indirect talks with the US resume. They described the meeting as a critical test of whether diplomacy can survive after this week's confrontation in the Gulf.According to the officials, Iranian representatives told US interlocutors the attacks on commercial shipping were a mistake and said they wanted negotiations to continue. "They came back to the table and said, 'We screwed up. We made a mistake. Let's keep talking,'" one senior US official said.Hard-LinersThe officials said Tehran privately attributed the attacks to an "errant" faction of hard-liners that it claimed was trying to derail negotiations with Washington.The White House, they said, wants Iran to make that acknowledgment publicly, arguing that private assurances are insufficient after what Washington views as a violation of the cease-fire framework reached in June.