# @aws-sdk/signature-v4 [![NPM version](https://img.shields.io/npm/v/@aws-sdk/signature-v4-crt/latest.svg)](https://www.npmjs.com/package/@aws-sdk/signature-v4-crt) [![NPM downloads](https://img.shields.io/npm/dm/@aws-sdk/signature-v4-crt.svg)](https://www.npmjs.com/package/@aws-sdk/signature-v4-crt) This package contains native modules that only executable in Node.js runtime. Please refer to [this issue](https://github.com/aws/aws-sdk-js-v3/issues/2822) for more information. See also https://github.com/aws/aws-sdk-js-v3/tree/main#functionality-requiring-aws-common-runtime-crt.