import type { Module } from './instantiate.js';
/** WASM exports used by the HMAC-SHA256 loader. @internal */
export type Exports = {
    hmac_sha256(key: number, keyLength: number, message: number, messageLength: number, out: number, scratch: number): void;
    zero(ptr: number, length: number): void;
};
/** WASM exports used by incremental HMAC-SHA256 states. @internal */
export type StateExports = {
    hmac_sha256_finalize(state: number, out: number): void;
    hmac_sha256_init(state: number, key: number, keyLength: number): void;
    hmac_sha256_update(state: number, input: number, inputLength: number): void;
    zero(ptr: number, length: number): void;
};
/** Calls HMAC-SHA256 and clears its complete linear-memory region. @internal */
export declare function hmacSha256(module: Module<Exports>, key: Uint8Array, message: Uint8Array): Uint8Array;
/** Creates an incremental HMAC-SHA256 state. @internal */
export declare function createHmacSha256(module: Module<Exports & StateExports>, key: Uint8Array): import("../Engine.js").HashState;
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