From f37cbed4d3ee98f6ae3c5737da624ec9d803cd65 Mon Sep 17 00:00:00 2001
From: Patrick McDermott <patrick.mcdermott@libiquity.com>
Date: Thu, 04 Apr 2019 03:18:29 -0400
Subject: opkg-key: New file

https://git.openwrt.org/?p=openwrt/openwrt.git;a=blob_plain;f=package/system/opkg/files/opkg-key;h=ae5e8a4591078764352ae766000f92e8230265fb;hb=beca028bd6bb71898052faadff680d8e76f61eb3
---
diff --git a/opkg-key b/opkg-key
new file mode 100644
index 0000000..ae5e8a4
--- /dev/null
+++ b/opkg-key
@@ -0,0 +1,56 @@
+#!/bin/sh
+
+usage() {
+	cat <<EOF
+Usage: $0 <command> <arguments...>
+Commands:
+  add <file>:			Add keyfile <file> to opkg trusted keys
+  remove <file>:		Remove keyfile matching <file> from opkg trusted keys
+  verify <sigfile> <list>:	Check list file <list> against signature file <sigfile>
+
+EOF
+	exit 1
+}
+
+opkg_key_verify() {
+	local sigfile="$1"
+	local msgfile="$2"
+
+	(
+		zcat "$msgfile" 2>/dev/null ||
+		cat "$msgfile" 2>/dev/null
+	) | usign -V -P /etc/opkg/keys -q -x "$sigfile" -m -
+}
+
+opkg_key_add() {
+	local key="$1"
+	[ -n "$key" ] || usage
+	[ -f "$key" ] || echo "Cannot open file $1"
+	local fingerprint="$(usign -F -p "$key")"
+	mkdir -p "/etc/opkg/keys"
+	cp "$key" "/etc/opkg/keys/$fingerprint"
+}
+
+opkg_key_remove() {
+	local key="$1"
+	[ -n "$key" ] || usage
+	[ -f "$key" ] || echo "Cannot open file $1"
+	local fingerprint="$(usign -F -p "$key")"
+	rm -f "/etc/opkg/keys/$fingerprint"
+}
+
+case "$1" in
+	add)
+		shift
+		opkg_key_add "$@"
+		;;
+	remove)
+		shift
+		opkg_key_remove "$@"
+		;;
+	verify)
+		shift
+		opkg_key_verify "$@"
+		;;
+	*) usage ;;
+esac
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