node . js x509 . check email(email[，options])方法

原文:https://www . geesforgeks . org/node-js-x509-check email-options-method/

x509.checkEmail() 是加密模块中 x509 证书类的内置应用程序编程接口，用于检查该 PEM 编码的 X509 证书是否与给定的电子邮件地址匹配。

语法:

x509.checkEmail(email[, options])

参数:该方法采用以下参数作为参数。

• E-mail: A string for saving mail.
• Option: Any option that will affect the operation of this api.

返回值:如果与证书电子邮件匹配，则该 api 返回电子邮件字符串，否则将返回未定义。

如何生成公共证书？

公共证书打开记事本，复制粘贴以下密钥，将文件保存为 公共证书

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

例 1:

index . js

// Node.js program to demonstrate the  
// x509.checkEmail() APi

// Importing crypto module
const {X509Certificate} = require('crypto')

// Importing fs module
const fs = require('fs')

// getting object of a PEM encoded X509 Certificate. 
const x509 = new X509Certificate(fs.readFileSync('public-cert.pem'));

// checking if passed email matches with the given one or not
// by using x509.checkEmail() api
const value = x509.checkEmail("rprrprp@gmail.com")

// display the result
if(value)
  console.log("email matched")
else
  console.log("email did't match")

使用以下命令运行 index.js 文件。

node index.js

输出:

email did't match

例 2:

index . js

// Node.js program to demonstrate the  
// x509.checkEmail() APi

// Importing crypto module
const {X509Certificate} = require('crypto')

// Importing fs module
const fs = require('fs')

// display the result
if((new X509Certificate(fs.readFileSync('public-cert.pem'))).checkEmail("rofofof@gmail.com"))
  console.log("email matched")
else
  console.log("email did't match")

使用以下命令运行 index.js 文件。

node index.js

输出:

email matched

参考:https://nodejs . org/dist/latest-v 15 . x/docs/API/crypto . html # crypto _ x509 _ check email _ email _ options

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