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gnupg: add package option to allow custom gnupg versions

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Add sops.gnupg.package option to NixOS, home-manager, and nix-darwin
modules, allowing users to specify a custom gnupg package instead of
the default pkgs.gnupg.

This enables use of bleeding-edge GPG versions with post-quantum
encryption algorithms like Kyber, addressing "store now, decrypt
later" threat models.
This commit is contained in:
Fabrizio Romano Genovese 2025-12-16 14:40:39 +01:00 • committed by Jörg Thalheim
parent 57e2d9ef84
commit 39c667d73c
3 changed files with 31 additions and 3 deletions
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11
modules/home-manager/sops.nix
View file

@ -269,6 +269,15 @@ in
};
gnupg = {
package = lib.mkOption {
type = lib.types.package;
default = pkgs.gnupg;
defaultText = lib.literalExpression "pkgs.gnupg";
description = ''
The gnupg package to use for sops operations.
'';
};
home = lib.mkOption {
type = lib.types.nullOr lib.types.str;
default = null;
@ -341,7 +350,7 @@ in
sops.environment = {
SOPS_GPG_EXEC = lib.mkMerge [
(lib.mkIf (cfg.gnupg.home != null || cfg.gnupg.sshKeyPaths != [ ]) (
lib.mkDefault "${pkgs.gnupg}/bin/gpg"
lib.mkDefault "${cfg.gnupg.package}/bin/gpg"
))
(lib.mkIf cfg.gnupg.qubes-split-gpg.enable (
lib.mkDefault config.home.sessionVariables.SOPS_GPG_EXEC

11
modules/nix-darwin/default.nix
View file

@ -320,6 +320,15 @@ in
'';
};
package = lib.mkOption {
type = lib.types.package;
default = pkgs.gnupg;
defaultText = lib.literalExpression "pkgs.gnupg";
description = ''
The gnupg package to use for sops operations.
'';
};
sshKeyPaths = lib.mkOption {
type = lib.types.listOf lib.types.path;
default = defaultImportKeys "rsa";
@ -384,7 +393,7 @@ in
{
sops.environment.SOPS_GPG_EXEC = lib.mkIf (cfg.gnupg.home != null || cfg.gnupg.sshKeyPaths != [ ]) (
lib.mkDefault "${pkgs.gnupg}/bin/gpg"
lib.mkDefault "${cfg.gnupg.package}/bin/gpg"
);
}
];

12
modules/sops/default.nix
View file

@ -381,6 +381,16 @@ in
This option must be explicitly unset if <literal>config.sops.gnupg.home</literal> is set.
'';
};
package = lib.mkOption {
type = lib.types.package;
default = pkgs.gnupg;
defaultText = lib.literalExpression "pkgs.gnupg";
description = ''
The gnupg package to use for sops operations.
'';
};
};
};
imports = [
@ -442,7 +452,7 @@ in
);
sops.environment.SOPS_GPG_EXEC = lib.mkIf (cfg.gnupg.home != null || cfg.gnupg.sshKeyPaths != [ ]) (
lib.mkDefault "${pkgs.gnupg}/bin/gpg"
lib.mkDefault "${cfg.gnupg.package}/bin/gpg"
);
# When using sysusers we no longer are started as an activation script because those are started in initrd while sysusers is started later.