Add AES192 and AES256 as optional encryption methods#17

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tknarr wants to merge 2 commits intofernet:masterfrom tknarr:enhance_aes

+59-11

Commits on Jun 2, 2016

Enhance spec to allow for AES192 and AES256 encryption.
tknarr
committed

Commits on Jun 4, 2016

Fix tokens.
tknarr
committed