ESM: Ported Base58, Base and BCD operations

src/core/lib/Base58.mjs

@@ -0,0 +1,22 @@
+/**
+ * Base58 resources.
+ *
+ * @author tlwr [toby@toby.codes]
+ * @author n1474335 [n1474335@gmail.com]
+ * @copyright Crown Copyright 2017
+ * @license Apache-2.0
+ */
+
+/**
+ * Base58 alphabet options.
+ */
+export const ALPHABET_OPTIONS = [
+    {
+        name: "Bitcoin",
+        value: "123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz",
+    },
+    {
+        name: "Ripple",
+        value: "rpshnaf39wBUDNEGHJKLM4PQRST7VWXYZ2bcdeCg65jkm8oFqi1tuvAxyz",
+    },
+];