Node.js cipher.final()方法
原文:https://www.geeksforgeeks.org/node-js-cipher-final-method/
cipher.final() 方法是加密模块内一个内置的类 cipher 应用编程接口，用于返回包含密码对象值的缓冲区。
语法:
const cipher.final([outputEncoding])
参数:该方法以输出编码为参数。
返回值:该方法返回包含密码值的缓冲区对象。
示例 1: 文件名:index.js
java 描述语言
// Node.js program to demonstrate the
// cipher.final() method
// Importing crypto module
const crypto = require('crypto');
// Creating and initializing algorithm and password
const algorithm = 'aes-192-cbc';
const password = 'Password used to generate key';
// Getting key for the cipher object
const key = crypto.scryptSync(password, 'salt', 24);
// Creating and initializg the static iv
const iv = Buffer.alloc(16, 0);
// Creating and initializing the cipher object
const cipher = crypto.createCipheriv(algorithm, key, iv);
// Getting buffer value
// by using final() method
let value = cipher.final('hex');
// Display the result
console.log("buffer :- " + value);
输出:
buffer :- b9be42878310d599e4e49e040d1badb9
示例 2: 文件名:index . js
Javascript
// Node.js program to demonstrate the
// cipher.final() method
// Importing crypto module
const crypto = require('crypto');
// Creating and initializing algorithm and password
const algorithm = 'aes-192-cbc';
const password = 'Password used to generate key';
// Getting key for cipher object
crypto.scrypt(password, 'salt', 24,
{ N: 512 }, (err, key) => {
if (err) throw err;
// Creating and initializg the static iv
const iv = Buffer.alloc(16, 0);
// Creating and initializing the cipher object
const cipher = crypto
.createCipheriv(algorithm, key, iv);
// Getting buffer value
// by using final() method
let value = cipher.final('hex');
// Display the result
console.log("buffer :- " + value);
});
输出:
buffer :- 726cccfc7d80ca473d8d4de1a0a42675
使用以下命令运行 index.js 文件:
node index.js
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