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+;; auth-config.el --- Configuration for Authentication Utilities -*- lexical-binding: t; coding: utf-8; -*-
+;; author Craig Jennings <c@cjennings.net>
+
+;;; Commentary:
+;;
+;; Configuration for Emacs authentication and GPG integration:
+
+;; • auth-source
+;;   – Forces use of your default authinfo file
+;;   – Disable external GPG agent in favor of Emacs’s own prompt
+;;   – Enable auth-source debug messages
+
+;; • Easy PG Assistant (epa)
+;;   – Force using the ‘gpg2’ executable for encryption/decryption operations
+
+;;; Code:
+
+(require 'user-constants) ;; defines authinfo-file location
+
+;; -------------------------------- Auth Sources -------------------------------
+;; auth sources settings
+
+(use-package auth-source
+  :ensure nil                           ;; built in
+  :demand t                             ;; load this package immediately
+  :config
+  (setenv "GPG_AGENT_INFO" nil)         ;; disassociate with external gpg agent
+  (setq auth-sources `(,authinfo-file)) ;; use authinfo.gpg (see user-constants.el)
+  (setq auth-source-debug t))           ;; echo debug info to Messages
+
+;; ----------------------------- Easy PG Assistant -----------------------------
+;; Key management, cryptographic operations on regions and files, dired
+;; integration, and automatic encryption/decryption of *.gpg files.
+
+(use-package epa
+  :ensure nil ;; built-in
+  :demand t
+  :config
+  (epa-file-enable)
+  ;; (setq epa-pinentry-mode 'loopback)  ;; emacs request passwords in minibuffer
+  (setq epg-gpg-program "gpg2"))  ;; force use gpg2 (not gpg v.1)
+
+
+(provide 'auth-config)
+;;; auth-config.el ends here.