Mutt: Decrypting inline gpg format directly

[The Fuzzy Whirlpool Thunderstorm]

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On Mon, Jul 21, 2014 at 02:54:23PM +0200, Werner Koch wrote:
> On Fri, 18 Jul 2014 18:18, whirlpool at blinkenshell.org said:
> 
> > I wonder if Mutt can be configured to decrypt inline pgp messages
> > automatically, without piping the attachment to `gpg --decrypt`.
> 
> IIRC, I implemented that about a decade ago.  Simply put
> 
> set crypt_use_gpgme
> 
> into your ~/.muttrc.
Yes, gpgme backend is great. But there is a problem with s/mime
handling. Before doing any s/mime decryption/encryption, a p12 private
key is needed. Since gpgme backend uses gpgsm to handle s/mime, I need
to import my p12 certificate.
The problem is pinentry doesn't come to foreground when I invoke `gpgsm
- --import mycertkey.p12`. Shell is hanging up waiting for pinentry-curses
to provide the passphrase. Is there any workaround to fix gpgsm and
pinentry behavior to work as expected?
S/MIME works with openssl backend, via `smime_keys add_p12
mycertkey.p12`
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