/// <reference types="node" />
declare type RevealableSeed = {
    entropyWithLangPrefixed: Buffer;
    seed: Buffer;
};
declare function mnemonicToRevealableSeed(mnemonic: string, passphrase?: string): RevealableSeed;
declare function revealEntropy(entropyWithLangPrefixed: Buffer): string;
export { RevealableSeed, mnemonicToRevealableSeed, revealEntropy };