thunderbird / thunderbird/thunderbird-android

Decryption of gnupg v1 encrypted emails fails

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Dominant language
Kotlin
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Forks
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Description

Moto G
Android 5.9
Latest K9 mail with openkeychain

I can decrypt emails from other PGPmail clients such as Mailvelope but we have system generated emails using gnupg v1 that fail to decrypt. It just says "decryption error" no further detail.

These worked with APG integration.

Contributor guide

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reproducing the decryption failure with a system-generated email encrypted by GnuPG v1, using the reported Android and OpenKeychain setup. Compare it with an email that decrypts successfully and trace the source of the generic "decryption error"; done means the affected message decrypts or the failure exposes actionable detail.

Written by the indexing model from the issue text.

Assessment

Tech stack
android, kotlin
Domain
mobile, security
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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