在此页

• 特性
• 方法
• 用法注意事项
• 规范
• 浏览器兼容性
• 另请参阅
• 相关话题

Crypto interface represents basic cryptography features available in the current context. It allows access to a cryptographically strong random number generator and to cryptographic primitives.

注意： 此特征可用于 Web 工作者 .

Web 加密 API is accessed through the Window.crypto property, which is a Crypto 对象。

特性

This interface implements properties defined on RandomSource .

Crypto.subtle 只读 安全上下文

返回 SubtleCrypto object providing access to common cryptographic primitives, like hashing, signing, encryption, or decryption.

方法

This interface implements methods defined on RandomSource .

Crypto.getRandomValues()

Fills the passed TypedArray with cryptographically sound random values.

用法注意事项

You should avoid using the Web Crypto API on insecure contexts, even though the Crypto interface is present on insecure contexts, as is the Window.crypto property. In addition, the Crypto 方法 getRandomValues() is available on insecure contexts, but the subtle property is not.

In general, you probably should just treat Crypto as available only on secure contexts.

规范

规范	状态	注释
Web Cryptography API The definition of 'Crypto' in that specification.	推荐	初始定义

浏览器兼容性

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request. 更新 GitHub 上的兼容性数据

	桌面						移动
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
Crypto	Chrome 11	Edge 12	Firefox 26	IE 11	Opera 15	Safari 6.1	WebView Android Yes	Chrome Android 18	Firefox Android 26	Opera Android 14	Safari iOS 6.1	Samsung Internet Android 1.0
getRandomValues()	Chrome 11	Edge 12	Firefox 26	IE 11	Opera 15	Safari 6.1	WebView Android ≤37	Chrome Android 18	Firefox Android 26	Opera Android 14	Safari iOS 6.1	Samsung Internet Android 1.0
subtle	Chrome 37	Edge 12	Firefox 34	IE 部分支持 11	Opera 24	Safari 10.1 10.1 7 Prefixed Prefixed Implemented with the vendor prefix: webkit	WebView Android 37	Chrome Android 37	Firefox Android 34	Opera Android 24	Safari iOS 10.3 10.3 7 Prefixed Prefixed Implemented with the vendor prefix: webkit	Samsung Internet Android 3.0

图例

完整支持

完整支持

部分支持

部分支持

实验。期望将来行为有所改变。

实验。期望将来行为有所改变。

用户必须明确启用此特征。

用户必须明确启用此特征。

要求使用供应商前缀或不同名称。

要求使用供应商前缀或不同名称。

另请参阅

• Web security
• Secure contexts
• Features restricted to secure contexts
• Transport Layer Security
• Strict-Transport-Security

元数据

• 最后修改： Mar 23, 2020

相关话题

1. Web 加密 API
2. Crypto
3. 特性

   1. subtle
4. 方法

   1. getRandomValues()
5. Related pages for Web Crypto API

   1. CryptoKey
   2. CryptoKeyPair
   3. RandomSource
   4. SubtleCrypto
   5. Window.crypto