We have no hostile intent toward the D.P.R.K.,” Mr. Blinken said on Saturday. “We remain open to dialogue with no preconditions if Pyongyang chooses that path.”

Mr. Blinken’s stop in Hawaii was the last in a weeklong trip across the Asia-Pacific region, following visits to Australia and Fiji. The goal was to emphasize that Asia is at the center of President Biden’s foreign policy.