For the investor, cryptography may sound like an arcane language reserved for mathematicians, spies, or tech savants. Yet, it is far more intimate, more human, than that. Cryptography is the invisible handshake between trust and value, the silent guardian that ensures the currency you invest in today will not vanish tomorrow. To navigate the markets of tomorrow—be it cryptocurrency, blockchain ventures, or even security-focused tech stocks—one must first understand this hidden architecture. I...