Initial source commit.

scripts/sign-script.sh

@@ -0,0 +1,22 @@
+#!/bin/sh
+#Example usage:
+#cat script.js | sign-script.sh
+#sh sign-script.sh script.js
+
+#Set your key paths here
+PRIVATE_KEY_PATH=~/.ssh/id_rsa
+PUBLIC_KEY_PATH=~/.ssh/id_rsa.pub
+
+PUBLIC_KEY_PKCS8=$(ssh-keygen -f "$PUBLIC_KEY_PATH" -e -m pkcs8 | tail -n +2 | head -n -1 | tr -d '\n')
+echo "This is your public key: '$PUBLIC_KEY_PKCS8'"
+
+if [ $# -eq 0 ]; then
+  # No parameter provided, read from stdin
+  DATA=$(cat)
+else
+  # Parameter provided, read from file
+  DATA=$(cat "$1")
+fi
+
+SIGNATURE=$(echo -n "$DATA" | openssl dgst -sha512 -sign ~/.ssh/id_rsa | base64 -w 0)
+echo "This is your signature: '$SIGNATURE'"