Acceptable IKE pre shared keys

Hello,

I just learned that JUNOS will change the passwords you specify without warning, for example if your password includes the symbol '=' (see this thread for more info).

Question: Does JUNOS also change IKE pre shared keys?  Are there invalid ASCII characters that JUNOS will ignore/change when specifying an IKE PSK?

Thank you,

Chris

EDIT: According to KB21159 the double-quote character is disallowed.  Presumably there are other disallowed characters such as newline, but without being rediculous, I assume that only double-quote is disallowed?  I just don't want to get screwed like I did with my password in the thread linked above.

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