/**
 * Default configuration helpers for IC stealth canister interactions.
 * @remarks
 * These helpers are used to construct vetKD context bytes and select key id names when interacting
 * with the key manager canister.
 */
/**
 * Default vetKD context prefix (domain separator) used by the SDK.
 * @remarks The full context is typically `DEFAULT_CONTEXT_PREFIX || addressBytes`.
 */
export declare const DEFAULT_CONTEXT_PREFIX: Uint8Array<ArrayBuffer>;
/**
 * Default vetKD key id name for production deployments.
 * @remarks This must match the key id configured in the key manager canister.
 */
export declare const DEFAULT_KEY_ID_NAME = "key_1";
/**
 * Default vetKD key id name commonly used for test/local deployments.
 * @remarks This is useful when running against local replicas or staging environments.
 */
export declare const DEFAULT_TEST_KEY_ID_NAME = "test_key_1";
/**
 * Derive the vetKD context bytes for an address.
 * @param address - 20-byte EVM address (binary form).
 * @param domain - Optional domain separator prefix. Defaults to {@link DEFAULT_CONTEXT_PREFIX}.
 * @returns Concatenated context bytes: `domain || address`.
 */
export declare function deriveContext(address: Uint8Array, domain?: Uint8Array): Uint8Array;
/**
 * Encode a UTF-8 string into bytes.
 */
export declare function textToUint8(text: string): Uint8Array;
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