Support for --stdin parameter in Windows version of VeraCrypt

[Kuzmich55]

Desired behavior

Add support for reading passwords from stdin in the Windows GUI version of VeraCrypt, similar to the existing --stdin functionality in Linux/MacOS versions (added in v1.14). This would allow secure automation without exposing passwords in command line arguments or temporary files.

Example usage:

echo password | VeraCrypt-x64.exe /v container.file /l W /q /stdin

I see there's already open issue #838 about this topic from 2021, and issue #24 from 2015 discussed the same security concern. The --stdin solution was implemented for Linux/MacOS but not for Windows.

What I've tried:

1. echo password | VeraCrypt-x64.exe /v container.file /l W /q /p "" /s - doesn't read from stdin
2. echo password | VeraCrypt-x64.exe -t --non-interactive --stdin - "error while parsing command line"

Current limitations:

• The -t (text mode) parameter is not supported in Windows
• Only insecure methods available: /p password (visible in process list) or /z file.txt

Questions:

1. Are there plans to add --stdin support in Windows?
2. Is there a COM interface or API for secure password passing from PowerShell/.NET?
3. Any other secure automation method for Windows?

I noticed in issue #838 that a technical solution was proposed using GetStdHandle (https://gist.github.com/rhoot/2893136). Has there been any progress?

Additional information

Currently using RAM disk for temporary password files as a workaround. This feature would greatly improve security for automation scenarios on Windows.

Your Environment

VeraCrypt version: 1.26.24 Operating system and version: Windows 10 System type: 64-bit