[Cryptography][Law] Jeremy Hammond Banned from using Cryptography

Can any of you, most of whom I do not doubt are far more knowledgeable about cryptography and how it's conceptualised within the legal sphere, offer some insight regarding this? https://twitter.com/CyMadD0x/status/401443518612512769 The claim is that Judge Loretta A. Preska, who sentenced Jeremy Hammond today, said that for the three years (post-release) that he was to spend under supervision, he will not be able to use encryption for communication or storage purposes(!) which is practically a legal edict to go and build a cabin by Walden Pond. How can this be considered anything but cruel and unusual?