/// <reference types="node" />
/// <reference types="node" />
export declare const NEXO_HMAC_KEY_LENGTH = 32;
export declare const NEXO_CIPHER_KEY_LENGTH = 32;
export declare const NEXO_IV_LENGTH = 16;
/**
 * Container for Nexo derived key material.
 * 80 bytes total: 32-byte HMAC key, 32-byte cipher key, 16-byte IV.
 */
export interface NexoDerivedKey {
    hmacKey: Buffer;
    cipherKey: Buffer;
    iv: Buffer;
}