PublicKeyCredentialCreationOptions.excludeCredentials

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安全上下文
此特征只可用于安全上下文 (HTTPS)，在某些或所有支持浏览器 .

excludeCredentials , an optional property of the PublicKeyCredentialCreationOptions dictionary, is an 数组 whose elements are descriptors for the public keys already existing for a given user. This is provided by the relying party's server if it wants to prevent creation of new credentials for an existing user.

句法

excludeCredentials = publicKeyCredentialCreationOptions.excludeCredentials

值

数组 whose elements are objects with the following properties:

type

A string describing type of public-key credential to be created. As of this writing (March 2019), only "


								public-key

" may be used.

id


									BufferSource

matching an existing public key credential identifier (


									PublicKeyCredential.rawId

). This identifier is generated during the creation of the


								PublicKeyCredential

实例。

传输 可选


									数组

of strings describing the possible transports between the client and the authenticator. The value of the strings may be:

" usb ": the authenticator can be contacted via a removable USB link
" nfc ": the authenticator may be used over NFC (Near Field Communication)
" ble ": the authenticator may be used over BLE (Bluetooth Low Energy)
" internal ": the authenticator is specifically bound to the client device (cannot be removed).

If the authenticator already contains one of such a public key credential, the client will throw a DOMException or asks the user if they want to create a new credential.

范例

var publicKey = {
  excludeCredentials: [
    {
      type: "public-key",
      // the id for john.doe@example.com
      id  : new Uint8Array(26) /* this actually is given by the server */
    },
    {
      type: "public-key",
      // the id for john-doe@example.com
      id : new Uint8Array(26) /* another id */
    }
  ],
  challenge: new Uint8Array(26) /* this actually is given from the server */,
  rp: {
    name: "Example CORP",
    id  : "login.example.com"
  },
  user: {
    id: new Uint8Array(26), /* To be changed for each user */
    name: "jdoe@example.com",
    displayName: "John Doe",
  },
  pubKeyCredParams: [ {
    type: "public-key",
    alg: -7 } ]
};
navigator.credentials.create({ publicKey })
  .then(function (newCredentialInfo) {
    // send attestation response and client extensions
    // to the server to proceed with the registration
    // of the credential
  }).catch(function (err) {
     console.error(err);
  });

规范

规范	状态	注释
Web Authentication: An API for accessing Public Key Credentials Level 1 The definition of 'excludeCredentials' 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
`excludeCredentials`	Chrome 67	Edge ≤79	Firefox 60	IE ?	Opera ?	Safari 13	WebView Android No	Chrome Android 67	Firefox Android ?	Opera Android ?	Safari iOS 13.3	Samsung Internet Android No

图例

完整支持
不支持
兼容性未知 ?
实验。期望将来行为有所改变。

元数据

最后修改： Jan 31, 2020

Web 身份验证 API
PublicKeyCredentialCreationOptions
特性
1. attestation
2. authenticatorSelection
3. challenge
4. excludeCredentials
5. extensions
6. pubKeyCredParams
7. rp
8. timeout
9. user
Related pages for Web Authentication API

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