import { Ephemeral, type Draw, type SigningKey } from './keys.ts';
export declare const SIZE = 1048576;
export declare const HEAD = 32;
export declare const SIGNATURE = 64;
export declare const SEALED_HEAD: number;
export declare const ZERO_EDGE: Uint8Array<ArrayBuffer>;
export declare const ZERO_HEAD: Uint8Array<ArrayBuffer>;
export declare const knockEdge: (shared: Uint8Array) => Promise<Uint8Array>;
export declare const follow: (edge: Uint8Array, agreement: Uint8Array) => Promise<Uint8Array>;
export declare const signBody: (text: Uint8Array, key: SigningKey) => Promise<Uint8Array>;
export declare const splitBody: (body: Uint8Array) => {
    text: Uint8Array;
    signature: Uint8Array;
} | null;
export declare const checkBody: (pk: Uint8Array, body: {
    text: Uint8Array;
    signature: Uint8Array;
}) => Promise<boolean>;
export declare const sealAsk: (lid: Ephemeral, padlock: Uint8Array, head: Uint8Array, edge: Uint8Array, body: Uint8Array, ciphertext?: Uint8Array) => Promise<Uint8Array | null>;
export type OpenedHead = {
    lid: Uint8Array;
    agreement: Uint8Array;
    head: Uint8Array;
    rest: Uint8Array;
};
export declare const openHead: (bytes: Uint8Array, agreement: Uint8Array) => Promise<OpenedHead | null>;
export declare const splitKnock: (rest: Uint8Array) => {
    ciphertext: Uint8Array;
    sealedBody: Uint8Array;
} | null;
export declare const openBody: (opened: OpenedHead, edge: Uint8Array, sealedBody: Uint8Array) => Promise<Uint8Array | null>;
export type SealedReply = {
    bytes: Uint8Array;
    agreement: Uint8Array;
};
export type ReplyKey = {
    ephemeral: Ephemeral;
    agreement: Uint8Array;
};
export declare const replyKey: (draw: Draw, lid: Uint8Array) => Promise<ReplyKey | null>;
export declare const sealReply: (key: ReplyKey, body: Uint8Array) => Promise<Uint8Array>;
export declare const openReply: (bytes: Uint8Array, lid: Ephemeral) => Promise<SealedReply | null>;