key

Signed-off-by: William Casarin <jb55@jb55.com>

key/key.js

@@ -0,0 +1,32 @@
+
+function hex_char(val)
+{
+	if (val < 10)
+		return String.fromCharCode(48 + val)
+	if (val < 16)
+		return String.fromCharCode(97 + val - 10)
+}
+
+function hex_encode(buf)
+{
+	str = ""
+	for (let i = 0; i < buf.length; i++) {
+		const c = buf[i]
+		str += hex_char(c >> 4)
+		str += hex_char(c & 0xF)
+	}
+	return str
+}
+
+function go() {
+	const el = document.querySelector("#damus-key")
+	const hex_el = document.querySelector("#hex-key")
+
+	el.addEventListener("input", () => {
+		const decoded = bech32.decode(el.value)
+		const bytes = fromWords(decoded.words)
+		hex_el.value = hex_encode(bytes)
+	});
+}
+
+go()