mnemonicToEntropy

Extracts the raw entropy bytes from a BIP-39 mnemonic phrase.

This is the inverse of generateMnemonic — given the words, it returns the bit pattern they encode. Used by wallet storage to persist entropy (smaller than the phrase, reproducible to the phrase on demand).

• 12 words → 16 bytes

• 15 words → 20 bytes

• 18 words → 24 bytes

• 21 words → 28 bytes

• 24 words → 32 bytes

Parameters

Throws