import { AeadAlgorithm } from "./aead";
import { KdfAlgorithm } from "./kdf";
import { KemAlgorithm } from "./kem";
export type PublicKey = CryptoKey & {
    type: "public";
};
export type SecretKey = CryptoKey & {
    type: "secret";
};
export type PrivateKey = CryptoKey & {
    type: "private";
};
export type HpkeAlgorithm = {
    kem: KemAlgorithm;
    kdf: KdfAlgorithm;
    aead: AeadAlgorithm;
};
export declare function encryptWithLabel(publicKey: PublicKey, label: string, context: Uint8Array, plaintext: Uint8Array, hpke: Hpke): Promise<{
    ct: Uint8Array;
    enc: Uint8Array;
}>;
export declare function decryptWithLabel(privateKey: PrivateKey, label: string, context: Uint8Array, kemOutput: Uint8Array, ciphertext: Uint8Array, hpke: Hpke): Promise<Uint8Array>;
export declare function makeHpke(hpkealg: HpkeAlgorithm): Promise<Hpke>;
export interface Hpke {
    open(privateKey: PrivateKey, kemOutput: Uint8Array, ciphertext: Uint8Array, info: Uint8Array, aad?: Uint8Array): Promise<Uint8Array>;
    seal(publicKey: PublicKey, plaintext: Uint8Array, info: Uint8Array, aad?: Uint8Array): Promise<{
        ct: Uint8Array;
        enc: Uint8Array;
    }>;
    importPrivateKey(k: Uint8Array): Promise<PrivateKey>;
    importPublicKey(k: Uint8Array): Promise<PublicKey>;
    exportPublicKey(k: PublicKey): Promise<Uint8Array>;
    exportPrivateKey(k: PrivateKey): Promise<Uint8Array>;
    encryptAead(key: Uint8Array, nonce: Uint8Array, aad: Uint8Array | undefined, plaintext: Uint8Array): Promise<Uint8Array>;
    decryptAead(key: Uint8Array, nonce: Uint8Array, aad: Uint8Array | undefined, ciphertext: Uint8Array): Promise<Uint8Array>;
    exportSecret(publicKey: PublicKey, exporterContext: Uint8Array, length: number, info: Uint8Array): Promise<{
        enc: Uint8Array;
        secret: Uint8Array;
    }>;
    importSecret(privateKey: PrivateKey, exporterContext: Uint8Array, kemOutput: Uint8Array, length: number, info: Uint8Array): Promise<Uint8Array>;
    deriveKeyPair(ikm: Uint8Array): Promise<{
        privateKey: PrivateKey;
        publicKey: PublicKey;
    }>;
    generateKeyPair(): Promise<{
        privateKey: PrivateKey;
        publicKey: PublicKey;
    }>;
    keyLength: number;
    nonceLength: number;
}