great, now look up what "dissent" means. Dissent is legal mumbo jumbo for "stuff that ain't law."

When you have a panel of judges, we go with the decision of the majority of judges. The decision of the minority of the judges is still published under the heading "dissent." It isn't the ruling and it doesn't affect the law, but it's published just to note that they disagreed and their reasons.

There are some 5th amendment encryption cases where there is a question about whether the government has shown that there is a reasonable certainty that the files contain the evidence being sought. In those cases the 5th amendment would act to protect the info. That doesn't seem to be the case here and in that case, it seems like clear law that he would have to give up the data.