From 4cf7f6f8bbea66788cda86637aacd2fa7057e498 Mon Sep 17 00:00:00 2001
From: Evan Pratten <ewpratten@gmail.com>
Date: Wed, 26 Jul 2023 23:54:02 -0400
Subject: [PATCH] Add macros for signing things with SSH keys

---
 configs/ssh/allowed_signers |  3 +++
 configs/zsh/macros.sh       | 22 ++++++++++++++++++++++
 2 files changed, 25 insertions(+)

diff --git a/configs/ssh/allowed_signers b/configs/ssh/allowed_signers
index d0e1f83..0f1c41e 100644
--- a/configs/ssh/allowed_signers
+++ b/configs/ssh/allowed_signers
@@ -1 +1,4 @@
+evan@ewpratten.com ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBMbNW3x0Cx04MybxQo5FptZhdjiFJjKITtq67KqrDXAN+jepJwdIG6TUJzuJddztuYIsvPAoQPpiQVSPyC8y51Y=
 evan@ewpratten.com sk-ssh-ed25519@openssh.com AAAAGnNrLXNzaC1lZDI1NTE5QG9wZW5zc2guY29tAAAAIAkdmKF1cYQTW7cfK7TYC5iVBsAg5g3SRJqlqo2NixHdAAAABHNzaDo=
+evan@ewpratten.com ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIGBaSKoWYuR43fxRPy31P/X/2Ri2hYUZTjKiLBRDoa1F
+evan@ewpratten.com ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIGEqeWe+pVp3rTsmHr9v5Qcb+niHXihJxwVKcc7p6EXz
diff --git a/configs/zsh/macros.sh b/configs/zsh/macros.sh
index 76d2c84..06080a7 100644
--- a/configs/zsh/macros.sh
+++ b/configs/zsh/macros.sh
@@ -95,3 +95,25 @@ genpass() {
     fi
 
 }
+
+# Sign a file with an SSH key
+ssh-sign(){
+    if [ $# != 2 ]; then
+        echo "Usage: ssh-sign <key_file> <file>"
+    else
+        if [ -f $2 ]; then
+            cat $2 | ssh-keygen -Y sign -f $1 -n file -
+        else
+            >&2 echo "File not found: $2"
+        fi
+    fi
+}
+
+# Verify a file, using the ~/.ssh/allowed_signers file
+ssh-verify(){
+    if [ $# != 3 ]; then
+        echo "Usage: ssh-verify <author> <sigfile> <file>"
+    else
+        ssh-keygen -Y verify -f ~/.ssh/allowed_signers -n file -I $1 -s $2 < $3
+    fi
+}