Node.js x509.infoAccess 属性

x509.infoAccess是crypto模块内的X509Certificate类的内置应用程序编程接口，用于获取该证书的信息访问内容。

句法：

const x509.infoAccess

参数：此属性不接受任何参数作为参数。

返回值：该属性返回该证书的信息访问内容。

如何生成公共证书？

公共证书：打开记事本并复制粘贴以下密钥并将文件另存为public-cert.pem

示例 1：

index.js

// Node.js program to demonstrate the  
// x509.infoAccess 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'));
  
// Getting the information access content of this certificate.
// by using x509.infoAccess api
const value = x509.infoAccess
  
// Display the result
console.log("information access content"+
            " of this certificate :- " + value)

index.js

// Node.js program to demonstrate the  
// x509.infoAccess APi
  
// Importing crypto module
const {X509Certificate} = require('crypto')
  
// Importing fs module
const fs = require('fs')
  
// Display the result
console.log("information access content of this certificate :- " 
+ ( new X509Certificate(fs.readFileSync('public-cert.pem'))).infoAccess)

使用以下命令运行index.js文件：

node index.js

输出：

information access content of this certificate :- undefined

示例 2：

index.js

// Node.js program to demonstrate the  
// x509.infoAccess APi
  
// Importing crypto module
const {X509Certificate} = require('crypto')
  
// Importing fs module
const fs = require('fs')
  
// Display the result
console.log("information access content of this certificate :- " 
+ ( new X509Certificate(fs.readFileSync('public-cert.pem'))).infoAccess)

使用以下命令运行index.js文件：

node index.js

输出：

information access content of this certificate :- undefined

参考：https://nodejs.org/dist/latest-v15.x/docs/api/crypto.html#crypto_x509_infoaccess