export declare class X25519EncryptedData {
    nonce: string;
    version: number;
    cipher: string;
    ciphertext: string;
    mac: string;
    identities: {
        recipient: string;
        ephemeralPubKey: string;
        originatorPubKey: string;
    };
    constructor(data: Omit<X25519EncryptedData, "toJSON">);
    toJSON(): any;
    static fromJSON(data: any): X25519EncryptedData;
}