E2E-Encrypted Payer Notes: Private Memos for Lightning Payments
Lightning let you attach a free text note — BOLT11, LNURL-pay, BOLT12. Today that memo travels in plaintext. if a cusodial wallet or a swap/bridge service processes your payment, it's operator's node reads and stores everything you wrote. In this talk i introduce a new bLIP draft that fixes this: E2E-encrypted payer nodes. we reuse the existing memo fields and carry one extra payload in them. built with the battle-tested NaCI. the receiving node it self, and cusodians in between all see only ciphertext; your counterparty's app is the only reader. We'll walk through the real-world privacy failure scenarios, the key separation and discovery design, and a step-by-step LNURL-pay `comment` path from invoice request to decryption on settlement.
