export interface IKesSk {
    sign(msg: Uint8Array): Uint8Array;
}
export interface KesSkClass {
    new (): IKesSk;
}
export interface IKesSig {
    sigma: IKesSig;
    lhs_pk: Uint8Array;
    rhs_pk: Uint8Array;
}
export interface KesSigClass {
    new (): IKesSig;
}
export declare function sum_kes(prev_kes_class: KesSkClass, prev_sig_class: KesSigClass): void;