RECENT CHANGES:

  • Apr 2013 Added private derivation for i >= 0x80000000 (less risk of parent private key leakage)
  • Apr 2013 Switched from multiplication by IL to addition of IL (faster, easier implementation)
  • May 2013 Added test vectors
  • Jan 2014 Rename keys with index ≥ 0x8000000 to hardened keys, and add explicit conversion functions.
  BIP: 32
  Title: Hierarchical Deterministic Wallets
  Author: Pieter Wuille
  Status: Accepted
  Type: Informational
  Created: 11-02-2012