From the fine article we're discussing: The Electronic Frontier Foundation has weighed in on the suspect's plight, telling the circuit court in a friend-of-the

From the fine article we're discussing: The Electronic Frontier Foundation has weighed in on the suspect's plight, telling the circuit court in a friend-of-the-court brief (PDF) that "compelled decryption is inherently testimonial because it compels a suspect to use the contents of their mind to translate unintelligible evidence into a form that can be used against them. The Fifth Amendment provides an absolute privilege against such self-incriminating compelled decryption."