Look up the meaning of the phrase "corporate veil."
We now conclude that the answer to the reported question is, "Yes, where the defendant's compelled decryption would not communicate facts of a testimonial nature to the Commonwealth beyond what the defendant already had admitted to investigators." Accordingly, we reverse the judge's denial of the Commonwealth's motion to compel decryption.
So what they're saying is that since the decryption key isn't "testimony" it doesn't count under the 5th Amendment. (IANAL)
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