export type Keystore = {
    version: number;
    meta: string;
    crypto: {
        cipher: string;
        cipherparams: {
            iv: string;
        };
        ciphertext: string;
        kdf: string;
        kdfparams: {
            prf: string;
            dklen: number;
            salt: string;
            c: number;
        };
        mac: string;
    };
};
export declare function encryptToKeyStore(phrase: string, password: string): Promise<{
    crypto: {
        cipher: string;
        cipherparams: {
            iv: string;
        };
        ciphertext: string;
        kdf: string;
        kdfparams: {
            c: number;
            dklen: number;
            prf: string;
            salt: string;
        };
        mac: string;
    };
    meta: string;
    version: number;
}>;
export declare function generatePhrase(size?: 12 | 24): string;
export declare function validatePhrase(phrase: string): boolean;
export declare function decryptFromKeystore(keystore: Keystore, password: string): Promise<string>;
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