Generate user-friendly, pseudo-random codes without ambiguous letters or numbers (e.g. 0 vs O vs o). For scenarios where only computers will be interacting, this is probably the way to go. But when the interaction involves a human, we want to remove ambigouity to improve accessibility and ease of reading and entering data. Use cases: * Entering code sent via SMS into a web page or app * Entering code from printed material into a web page or app