Node.js x509.fingerprint256 属性

x509.fingerprint256是加密模块中 X509Certificate 类的内置应用程序编程接口，用于获取此证书的 SHA-256 指纹。

句法：

const x509.fingerprint

参数：此属性不接受任何参数作为参数。

返回值：此属性返回此证书的 SHA-256 指纹。

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保存为public-cert.pem

示例 1：

index.js

// Node.js program to demonstrate the  
// x509.fingerprint256 function
  
// 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 SHA-256 fingerprint of this certificate.
// by using x509.fingerprint256 function
const value = x509.fingerprint256
  
// display the result
console.log("SHA-256 fingerprint of this certificate :- "
            + value)

index.js

// Node.js program to demonstrate the  
// x509.fingerprint256 function
  
// Importing crypto module
const {X509Certificate} = require('crypto')
  
// Importing fs module
const fs = require('fs')
  
// display the result
console.log("SHA-256 fingerprint of this certificate :- " +
           ( new X509Certificate(fs.readFileSync('public-cert.pem')))
            .fingerprint256)

使用以下命令运行 index.js 文件。

node index.js

输出：

SHA-256 fingerprint of this certificate :- 
77:7B:70:8C:52:C5:C8:02:88:B3:BD:D5:1F:6C:A5:AB:78:
0C:4D:0E:F6:6C:0B:DA:ED:49:8E:06:0E:78:8F:05

示例 2：

index.js

// Node.js program to demonstrate the  
// x509.fingerprint256 function
  
// Importing crypto module
const {X509Certificate} = require('crypto')
  
// Importing fs module
const fs = require('fs')
  
// display the result
console.log("SHA-256 fingerprint of this certificate :- " +
           ( new X509Certificate(fs.readFileSync('public-cert.pem')))
            .fingerprint256)

使用以下命令运行 index.js 文件。

node index.js

输出：

SHA-256 fingerprint of this certificate :-
77:7B:70:8C:52:C5:C8:02:88:B3:BD:D5:1F:6C:A5:AB:
78:0C:4D:0E:F6:6C:0B:DA:ED:49:8E:06:0E:78:8F:05

参考：https://nodejs.org/dist/latest-v15.x/docs/api/crypto.html#crypto_x509_fingerprint256