GPG Mail: SHA1 hash algorithm found
When I use the signature for an E-Mail in MailMate it tells me: Note that the SHA1 hash algorithm has been found to have weaknesses
Expected
No hints about weak hash algorithm.
Additional info
macOS 13.2 22D49
GPG Suite 2023.1 3410 (5c363bfe16)
GPG Mail (enabled) 7.1 2180 (acd878a2ce) Decrypt Only Mode
GPG Keychain 1.12 1800 (a7b8825b15)
GPG Services 2.5 1200 (87637a835e)
MacGPG 2.2.41 1050 (61c98963b6)
GPG Suite Preferences 2.6.1 1230 (2960a7a76a)
Libmacgpg 1.5.1 990 (8e1ef2f1e5)
pinentry 1.1.1.1 100 (b7195e9d4c)
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1 Posted by com on 08 Mar, 2023 09:45 AM
The issue has been resolved. I thought it was GPGTools, but it was MailMate - at least partially. If anyone else has this problem, I found the following solution to it:
In the file ~user.gnupg\gpg.conf add the following line:
The tip comes from the MailMate developer himself. Many thanks to Benny Kjær Nielsen.
Support Staff 2 Posted by Steve on 22 Mar, 2023 11:17 AM
Hi com,
thanks for taking the time to report this problem.
MailMate seems to be complaining about
personal-digest-preferences
in yourgpg.conf
file.To change those preferences:
shift cmd G
and paste/.gnupg
gpg.conf
with TextEditSHA1
frompersonal-digest-preferences
cmd S
to save changesThis entirely removes SHA1 usage.
Glad you already found the solution.
All the best,
Steve
Steve closed this discussion on 22 Mar, 2023 11:17 AM.