import { OkpJwk } from "./keys.js";
export type Envelope = {
    typ: "hpke-envelope";
    ver: "1";
    suite?: "X25519-HKDF-SHA256-CHACHA20POLY1305";
    ns: string;
    kid: string;
    kem: "X25519";
    kdf: "HKDF-SHA256";
    aead: "CHACHA20-POLY1305";
    enc: string;
    aad: string;
    ct: string;
};
export declare function seal(args: {
    namespace: string;
    kem: "X25519";
    kdf: "HKDF-SHA256";
    aead: "CHACHA20-POLY1305";
    kid: string;
    recipientPublicJwk: OkpJwk;
    transport: {
        getHeader(): {
            header: string;
            value: any;
        } | undefined;
        getBody(): Record<string, any>;
        getExtensions(): Array<{
            header: string;
            value: any;
        }>;
        getHttpResponseCode(): number | undefined;
    };
    makeEntitiesPublic?: "all" | "*" | string[];
    __testEphSeed32?: Uint8Array;
}): Promise<{
    envelope: Envelope;
    publicHeaders?: Record<string, string>;
    publicBody?: Record<string, any>;
}>;
export declare function open(args: {
    namespace: string;
    kem: "X25519";
    kdf: "HKDF-SHA256";
    aead: "CHACHA20-POLY1305";
    expectedKid?: string;
    recipientPrivateJwk: OkpJwk;
    envelope: Envelope;
    publicHeaders?: Record<string, string>;
    publicJson?: Record<string, string>;
    publicBody?: Record<string, any>;
}): Promise<{
    plaintext: Uint8Array;
    body?: Record<string, any>;
    headers?: Array<{
        header: string;
        value: any;
        [k: string]: any;
    }>;
}>;