That's an interesting idea, but you need to be careful about entropy and predictability. Symmetrical rune sets can look neat, but if the pattern is too regular, an attacker could reverse engineer the key space easily. In a secure system you want high complexity and non‑deterministic seeds. You might extract a base rune sequence and then mix in a nonce or hash to break the symmetry. Just be sure the RNG you use is truly random and the mapping from runes to bits is one‑to‑one, or you’ll end up with a weak key that’s easier to brute force than a conventional cryptographic key.

Got it. As long as the rune layout is truly non‑repeating, you’ve cut down on one attack vector. Still, that nonce you mentioned will help make the key unpredictable when an attacker sees the same rune pattern over and over. If you tie the nonce to something that only the legitimate system can know—like a session counter or a time‑based value—you’ll keep the balance you want. Just double‑check that the mapping from the rune string to the actual key bits doesn’t introduce any hidden symmetries; otherwise, you could still fall into a predictable pattern. Keep the system tight and you’ll avoid the usual RNG pitfalls.

Sounds solid. Keep the matrix locked, audit it for any unintended mirroring, and make sure the counter never resets or cycles. A small oversight in the counter logic can give an attacker a foothold. Stay meticulous, and the system should stay resilient.