BIP-32 (Hierarchical Deterministic Wallets)

Definition

BIP-32 defines hierarchical deterministic (HD) wallet key derivation, enabling unlimited addresses from a single master seed. Child keys derive from parent keys through a tree structure. Post-quantum HD wallets adapt BIP-32 concepts for larger quantum-resistant keys.

Technical Explanation

BIP-32 uses HMAC-SHA512 to derive child keys from parents. Extended keys (xpub/xprv) contain the key plus chain code for derivation. Hardened derivation (index ≥ 2³¹) requires the private key; normal derivation works with extended public keys alone.

Post-quantum adaptation: the derivation structure applies to any key material. Kyber-768 and SPHINCS+ keys derive from path-indexed seeds using appropriate hash functions. The hierarchy enables organization while determinism enables backup.

SynX Relevance

SynX implements HD wallet functionality adapted for post-quantum keys. Derive unlimited Kyber-768 and SPHINCS+ key pairs from your master seed using hierarchical paths. Create accounts, generate fresh addresses, and maintain organization—all recoverable from one backup.

Frequently Asked Questions

Can I use the same paths as Bitcoin?: Path structure is similar, but coin type and key derivation differ for quantum-resistant keys.
What's the difference between hardened and normal derivation?: Hardened requires private key (more secure); normal allows deriving receive addresses from public key only.
How many addresses can I create?: Effectively unlimited—2³¹ paths per level, multiple hierarchy levels.

Organized quantum-resistant keys. HD wallets with SynX