export declare function generate_key_derivation(pub: string, sec: string): string;
export declare function derivation_to_scalar(derivation: string, output_index: number): string;
export declare function derive_secret_key(derivation: string, out_index: number, sec: string): string;
export declare function derive_public_key(derivation: string, out_index: number, pub: string): string;
export declare function derive_subaddress_public_key(output_key: string, derivation: string, out_index: number): string;
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