import { KeyContext } from "@algorandfoundation/xhd-wallet-api";
import type { Key, KeyData } from "./types/index.ts";
export declare const derivableTypes: string[];
export declare function requiresParentKey(key: Partial<Key>): boolean;
/**
 * Clears sensitive key material from a KeyData object.
 *
 * @param key - The {@link KeyData} to clear. If null or undefined, does nothing.
 */
export declare function clearKeyData(key?: Partial<KeyData> | null): void;
/**
 * Hardens a number for BIP32 derivation (adds 0x80000000).
 * @param num - The index to harden
 * @returns The hardened index
 */
export declare const harden: (num: number) => number;
/**
 * Generates a BIP44 path based on the key context, account, and index.
 * @param context - The {@link KeyContext} (e.g., Address or Identity)
 * @param account - The account index
 * @param key_index - The key index
 * @returns An array of hardened and unhardened path components
 * @throws Error if context is invalid
 */
export declare function getBIP44PathFromContext(context: KeyContext, account: number, key_index: number): number[];
/**
 * Encrypts data using the provided public key.
 *
 * @param params - The encryption parameters.
 * @param params.key - The {@link KeyData} containing the public key.
 * @param params.data - The plaintext data to encrypt.
 * @param params.algorithm - Optional algorithm to use.
 * @returns A promise that resolves to the encrypted data (ciphertext).
 */
export declare function encryptWithKeyData({ key, data, }: {
    key: KeyData;
    data: Uint8Array;
    algorithm?: string;
}): Promise<Uint8Array<ArrayBufferLike>>;
/**
 * Decrypts data using the provided secret key.
 *
 * @param params - The decryption parameters.
 * @param params.key - The {@link KeyData} containing the secret key.
 * @param params.data - The ciphertext to decrypt.
 * @param params.algorithm - Optional algorithm to use.
 * @returns A promise that resolves to the decrypted data (plaintext).
 */
export declare function decryptWithKeyData({ key, data, }: {
    key: KeyData;
    data: Uint8Array;
    algorithm?: string;
}): Promise<Uint8Array<ArrayBufferLike>>;
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