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[BUG] Implicit AEAD MAC Not Supported #14

@inferenceus

Description

@inferenceus

Describe the bug
When AEAD ciphers are used, such as AES-GCM or ChaCha20-Poly1305, a dedicated MAC is not required as the MAC is part of the cipher. When sshd has MACs disabled in this case, SFTP Documents Provider throws an error related to unsupported MACs, forcing the user to enable a dedicated MAC on the server, such as [email protected].

To Reproduce
Steps to reproduce the behavior:

  1. Attempt to add a host which has an AEAD cipher enabled and MACs disabled (via MACs -*)
  2. Observe error related to unsupported MACs

Expected behavior
The application should connect via the implicit AEAD MAC.

Screenshots
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Smartphone (please complete the following information):

  • Device: Google Pixel 8 Pro
  • OS: GrapheneOS (Android 16 QPR2)
  • Version: 2026030701

Additional context
N/A

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