Electrum wallet uses mnemonics generated with a different algorithm compared to BIP-0039.

The functionalities of this library are the same as the BIP-0039 one but with Electrum-style mnemonics:

• Generate mnemonics from words number or entropy bytes
• Validate a mnemonic
• Get back the entropy bytes from a mnemonic
• Generate the seed from a mnemonic

Two mnemonic "versions" are supported:

• V1, i.e. "old seed" in Electrum
• V2, i.e. the current seeds used by Electrum