crypto 密码加密

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'use strict';
var crypto = require('crypto');
/**
 * generates random string of characters i.e salt
 * @function
 * @param {number} length - Length of the random string.
 */
var genRandomString = function(length){
    return crypto.randomBytes(Math.ceil(length/2))
            .toString('hex') /** convert to hexadecimal format */
            .slice(0,length);   /** return required number of characters */
};
/**
 * hash password with sha512.
 * @function
 * @param {string} password - List of required fields.
 * @param {string} salt - Data to be validated.
 */
var sha512 = function(password, salt){
    var hash = crypto.createHmac('sha512', salt); /** Hashing algorithm sha512 */
    hash.update(password);
    var value = hash.digest('hex');
    return {
        salt:salt,
        passwordHash:value
    };
};
function saltHashPassword(userpassword) {
    var salt = genRandomString(16); /** Gives us salt of length 16 */
    var passwordData = sha512(userpassword, salt);
    console.log('UserPassword = '+userpassword);
    console.log('Passwordhash = '+passwordData.passwordHash);
    console.log('nSalt = '+passwordData.salt);
}
saltHashPassword('MYPASSWORD');
saltHashPassword('MYPASSWORD');

 

posted @   安筱雨  阅读(856)  评论(1编辑  收藏  举报
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