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41f918499b
The [throw-keyids](https://www.gnupg.org/gph/en/manual/r2110.html) option "hides the receiver of the encrypted data as a countermeasure against traffic analysis." However, it also slows down decryption, and even breaks some applications; see e.g. https://github.com/open-keychain/open-keychain/issues/626 I think the sane default would be to leave it off, just as it is off by default in gpg. The typical user will probably not need this level of security, and will probably prefer a better user experience (faster decryption and compatibility with a wider range of applications). Closes #838
62 lines
1.8 KiB
Nix
62 lines
1.8 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.programs.gpg;
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cfgText =
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concatStringsSep "\n"
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(attrValues
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(mapAttrs (key: value:
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if isString value
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then "${key} ${value}"
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else optionalString value key)
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cfg.settings));
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in {
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options.programs.gpg = {
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enable = mkEnableOption "GnuPG";
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settings = mkOption {
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type = types.attrsOf (types.either types.str types.bool);
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example = {
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no-comments = false;
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s2k-cipher-algo = "AES128";
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};
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description = ''
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GnuPG configuration options. Available options are described
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in the gpg manpage:
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<link xlink:href="https://gnupg.org/documentation/manpage.html"/>.
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'';
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};
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};
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config = mkIf cfg.enable {
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programs.gpg.settings = {
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personal-cipher-preferences = mkDefault "AES256 AES192 AES";
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personal-digest-preferences = mkDefault "SHA512 SHA384 SHA256";
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personal-compress-preferences = mkDefault "ZLIB BZIP2 ZIP Uncompressed";
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default-preference-list = mkDefault "SHA512 SHA384 SHA256 AES256 AES192 AES ZLIB BZIP2 ZIP Uncompressed";
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cert-digest-algo = mkDefault "SHA512";
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s2k-digest-algo = mkDefault "SHA512";
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s2k-cipher-algo = mkDefault "AES256";
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charset = mkDefault "utf-8";
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fixed-list-mode = mkDefault true;
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no-comments = mkDefault true;
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no-emit-version = mkDefault true;
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keyid-format = mkDefault "0xlong";
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list-options = mkDefault "show-uid-validity";
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verify-options = mkDefault "show-uid-validity";
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with-fingerprint = mkDefault true;
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require-cross-certification = mkDefault true;
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no-symkey-cache = mkDefault true;
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use-agent = mkDefault true;
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};
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home.packages = [ pkgs.gnupg ];
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home.file.".gnupg/gpg.conf".text = cfgText;
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};
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}
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