Aquamacs 3.6 Hangs When Saving An Encrypted File

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John Bokma · 2023-05-26 · via John Bokma's Hacking and Hiking

May 25, 2023

In the evening I wanted to save an encrypted text file I had open in Aquamacs version 3.6 on my Mac mini. This somehow hung up Aquamacs until I pressed C-g. After some Googling I found a solution: downgrade GNU Privacy Guard from version 2.4.1 back to version 2.4.0.

First I verified that I indeed was running 2.4.1 which seems to cause this issue in Emacs and hence Aquamacs:

rhea:~ john$ gpg2 --version
gpg (GnuPG) 2.4.1
libgcrypt 1.10.2
Copyright (C) 2023 g10 Code GmbH
License GNU GPL-3.0-or-later <https://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

Home: /Users/john/.gnupg
Supported algorithms:
Pubkey: RSA, ELG, DSA, ECDH, ECDSA, EDDSA
Cipher: IDEA, 3DES, CAST5, BLOWFISH, AES, AES192, AES256, TWOFISH,
        CAMELLIA128, CAMELLIA192, CAMELLIA256
Hash: SHA1, RIPEMD160, SHA256, SHA384, SHA512, SHA224
Compression: Uncompressed, ZIP, ZLIB, BZIP2

I am using Mac Ports so I read how to install an older version of a port which turned out to be easy.

First, I checked if the older port was still installed using: port installed gnupg2. This reported:

The following ports are currently installed:
  gnupg2 @2.2.15_0+openldap+pinentry_mac
  gnupg2 @2.2.16_0+openldap+pinentry_mac
  gnupg2 @2.2.17_0+openldap+pinentry_mac
  gnupg2 @2.2.23_0+openldap+pinentry_mac
  gnupg2 @2.2.25_0+openldap+pinentry_mac
  gnupg2 @2.2.34_0+openldap+pinentry_mac
  gnupg2 @2.2.36_0+openldap+pinentry_mac
  gnupg2 @2.4.0_0+openldap+pinentry_mac
  gnupg2 @2.4.1_0+openldap+pinentry_mac (active)

Next, I activated the previous version of GNU Privacy Guard using:

rhea:~ john$ sudo port activate gnupg2 @2.4.0_0+openldap+pinentry_mac
--->  Computing dependencies for gnupg2
--->  Deactivating gnupg2 @2.4.1_0+openldap+pinentry_mac
--->  Cleaning gnupg2
--->  Activating gnupg2 @2.4.0_0+openldap+pinentry_mac
--->  Cleaning gnupg2

Finally, I verified that I now could save the file encrypted. And indeed saving the file worked without any problems.

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