BIPs bitcoin improvement proposals

85 - Deterministic Entropy From BIP32 Keychains

<pre> BIP: 85 Layer: Applications Title: Deterministic Entropy From BIP32 Keychains Author: Ethan Kosakovsky <ethankosakovsky@protonmail.com> Comments-Summary: No comments yet. Comments-URI: https://github.com/bitcoin/bips/wiki/Comments:BIP-0085 Status: Draft Type: Informational Created: 2020-03-20 License: BSD-2-Clause OPL </pre> ==Abstract== ''"One Seed to rule them all,'' ''One Key to find them,'' ''One Path to bring them all,'' ''And in cryptography bind them."'' It is not possible to maintain one single (mnemonic) seed backup for all keychains used across various wallets because there are a variety of incompatible standards. Sharing of seeds across multiple wallets is not desirable for security reasons. Physical storage of multiple seeds is difficult depending on the security and redundancy required. As HD keychains are essentially derived from initial entropy, this proposal provides a way to derive entropy from the keychain which can be fed into...