different passwords for subkeys of the same masterkey

[s7r]

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Hi,

Is it possible to have one masterkey with two subkeys (sbind), one for
encrypt only and one for sign only, and each of them to have different
passphrases?

Additionally, how can I select in enigmail which userID I want to sign
when signing a key with multiple UserIDs? I do not want to sign the
primary one. Enigmail just offers me the ability to 'sign key',
nothing said about UserID, just lets me select either normal signature
or local signature not exportable.

Thanks in advance.


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