From f1e3b7f19822cd38ee0936a6ead3f65ff986a018 Mon Sep 17 00:00:00 2001
From: Alex Maldonado <aalexmmaldonado@gmail.com>
Date: Thu, 7 May 2026 18:02:29 -0400
Subject: [PATCH] feat: ssh key generation

---
 home/alex/ssh.nix | 15 +++++++++++++++
 justfile          | 18 ++++++++++++++++++
 2 files changed, 33 insertions(+)
 create mode 100644 home/alex/ssh.nix

diff --git a/home/alex/ssh.nix b/home/alex/ssh.nix
new file mode 100644
index 0000000..3bf73a5
--- /dev/null
+++ b/home/alex/ssh.nix
@@ -0,0 +1,15 @@
+{ ... }:
+
+{
+  programs.ssh = {
+    enable = true;
+    
+    matchBlocks = {
+      "github.com" = {
+        hostname = "github.com";
+        user = "git";
+        identityFile = "~/.ssh/id_github";
+      };
+    };
+  };
+}
diff --git a/justfile b/justfile
index fa183a8..aa2d1d3 100644
--- a/justfile
+++ b/justfile
@@ -1,4 +1,5 @@
 host := `hostname`
+key_services := "github gradescope"
 
 rebuild:
     sudo nixos-rebuild switch --flake .#{{host}}
@@ -10,3 +11,20 @@ gc:
     sudo nix-env --delete-generations +3
     sudo nix-store --gc
 
+# Generate high-strength, post-quantum ready SSH keys without passphrases
+gen-keys:
+    #!/usr/bin/env bash
+    set -euo pipefail
+    mkdir -p ~/.ssh
+    
+    for service in {{key_services}}; do
+        FILE="$HOME/.ssh/id_$service"
+        
+        if [ -f "$FILE" ]; then
+            echo "skipping: $FILE already exists."
+        else
+            echo "generating: $FILE"
+            ssh-keygen -t ed25519 -a 100 -o -f "$FILE" -N ""
+        fi
+    done
+