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Discussion on: The ultimate guide to Yubikey on WSL2 [Part 2]

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Gene Liverman •

I am on Windows 11 and ssh works fine in WSL2 but I can't seem to get the gpg side to work. I have gpg4win installed via chocolatey. I am using this:

# Utilize Yubikey and SSH from Windows
wsl2_ssh_pageant_bin="$HOME/.ssh/wsl2-ssh-pageant.exe"
if [[ ! -f "${wsl2_ssh_pageant_bin}" ]]; then
  windows_destination="/mnt/c/Users/Public/Downloads/wsl2-ssh-pageant.exe"
  if [[ ! -f "${windows_destination}" ]]; then
    wget -O "$windows_destination" "https://github.com/BlackReloaded/wsl2-ssh-pageant/releases/latest/download/wsl2-ssh-pageant.exe"
    # Set the executable bit.
    chmod +x "$windows_destination"
  fi
  # Symlink to linux for ease of use later
  ln -s $windows_destination $wsl2_ssh_pageant_bin
fi

export SSH_AUTH_SOCK="$HOME/.ssh/agent.sock"
if ! ss -a | grep -q "$SSH_AUTH_SOCK"; then
  rm -f "$SSH_AUTH_SOCK"
  if test -x "$wsl2_ssh_pageant_bin"; then
    (setsid nohup socat UNIX-LISTEN:"$SSH_AUTH_SOCK,fork" EXEC:"$wsl2_ssh_pageant_bin" >/dev/null 2>&1 &)
  else
    echo >&2 "WARNING: $wsl2_ssh_pageant_bin is not executable."
  fi
fi

export GPG_AGENT_SOCK="$HOME/.gnupg/S.gpg-agent"
if ! ss -a | grep -q "$GPG_AGENT_SOCK"; then
  rm -rf "$GPG_AGENT_SOCK"
  windows_username=$(cmd.exe /c echo %USERNAME% 2>/dev/null | tr -d '\r')
  # When gpg4win is installed with scoop or chocolatey, the pipe is in the local directory
  if [ -d "/mnt/c/Users/$windows_username/AppData/Local/gnupg" ]; then
    config_path="C:/Users/$windows_username/AppData/Local/gnupg"
  else
    config_path="C:/Users/$windows_username/AppData/Roaming/gnupg"
  fi

  if test -x "$wsl2_ssh_pageant_bin"; then
    (setsid nohup socat UNIX-LISTEN:"$GPG_AGENT_SOCK,fork" EXEC:"$wsl2_ssh_pageant_bin -verbose --gpgConfigBasepath ${config_path} --gpg S.gpg-agent" >/dev/null 2>&1 &)
  else
    echo >&2 "WARNING: $wsl2_ssh_pageant_bin is not executable."
  fi
  unset windows_username config_path
fi

unset wsl2_ssh_pageant_bin
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I am pretty sure I have every package anyone in any debugging thread has mentioned:

$ apt list --installed |grep 'gpg\|scdaemon\|iproute2'

WARNING: apt does not have a stable CLI interface. Use with caution in scripts.

gpg-agent/jammy-updates,jammy-security,now 2.2.27-3ubuntu2.1 amd64 [installed,automatic]
gpg-wks-client/jammy-updates,jammy-security,now 2.2.27-3ubuntu2.1 amd64 [installed,automatic]
gpg-wks-server/jammy-updates,jammy-security,now 2.2.27-3ubuntu2.1 amd64 [installed,automatic]
gpg/jammy-updates,jammy-security,now 2.2.27-3ubuntu2.1 amd64 [installed,automatic]
gpgconf/jammy-updates,jammy-security,now 2.2.27-3ubuntu2.1 amd64 [installed,automatic]
gpgsm/jammy-updates,jammy-security,now 2.2.27-3ubuntu2.1 amd64 [installed,automatic]
gpgv/jammy-updates,jammy-security,now 2.2.27-3ubuntu2.1 amd64 [installed,automatic]
iproute2/jammy,now 5.15.0-1ubuntu2 amd64 [installed]
libgpg-error0/jammy,now 1.43-3 amd64 [installed,automatic]
libgpgme11/jammy,now 1.16.0-1.2ubuntu4 amd64 [installed,automatic]
scdaemon/jammy-updates,jammy-security,now 2.2.27-3ubuntu2.1 amd64 [installed]
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Here's info on my install of WSL also:

PS C:\ > wsl --version
WSL version: 0.70.0.0
Kernel version: 5.15.68.1
WSLg version: 1.0.45
MSRDC version: 1.2.3575
Direct3D version: 1.606.4
DXCore version: 10.0.25131.1002-220531-1700.rs-onecore-base2-hyp
Windows version: 10.0.22000.1098
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Anyone have any idea why this isn't working?