import type { VaultDocument } from './models/VaultDocument';
export interface EncryptWithPassphraseRnOptions {
    docId?: string;
    vaultId?: string;
    epoch?: number;
    /** Argon2id memory cost in KiB. Default 65536 (64 MiB). Matches server. */
    memory?: number;
    /** Argon2id iterations. Default 3. Matches server. */
    iterations?: number;
}
export declare function encryptWithPassphraseRn(plaintext: Uint8Array, passphrase: string, options?: EncryptWithPassphraseRnOptions): Promise<VaultDocument>;
export declare function decryptWithPassphraseRn(vault: VaultDocument, passphrase: string): Promise<Uint8Array>;