Github user alopresto commented on the issue:
https://github.com/apache/nifi/pull/1294
@HandOfGod94
# `EncryptContent` should encrypt flowfile content. It should not operate
on attributes. At most, it could *add* an attribute documenting what encryption
algorithm, KDF, etc. were used to encrypt the content.
# You do not need a new ticket, you can create a new PR against NIFI-2961.
If you undertake a task solely to modify `EncryptContent` for some reason, that
would be a new Jira.
# The shared logic should absolutely be refactored out of `EncryptContent`.
Again, do not try to add the responsibility for encrypting attributes to
`EncryptContent`.
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