password-protection

来源： https://stackoverflow.com/questions/45267951/vba-code-to-unprotect-a-opened-powerpoint-presentation-then-protect-it-again-be

来源： https://stackoverflow.com/questions/63534064/tcpdf-setprotection-method-is-not-working-as-expected

问题 I have set password in my pdf file. I want a best way to store its password in java. I did as the following but I think, it could be easily accessed by private hackers because it is stored as string. pdfView.fromAsset("eng1.pdf").scrollHandle(new DefaultScrollHandle(this)).password("eng@789").load(); Is there any better solution than to store as string value? I went through many websites but didn't get the necessary solution. 来源： https://stackoverflow.com/questions/61619104/best-way-to

问题 I have a NODEJS code to connect to MySql database: var mysql = require('mysql') var express = require('express') var app = express() var connection = mysql.createPool({ connectionLimit: 50, host : 'ip', user : 'username', password : 'pass', database : 'mydb' }); app.get('/', function(req, resp) { connection.getConnection(function(error, tempCont) { if(!!error) { tempCont.release(); console.log('Error'); } else { console.log('Connected!'); tempCont.query("select * from table", function(error,

问题 I have a NODEJS code to connect to MySql database: var mysql = require('mysql') var express = require('express') var app = express() var connection = mysql.createPool({ connectionLimit: 50, host : 'ip', user : 'username', password : 'pass', database : 'mydb' }); app.get('/', function(req, resp) { connection.getConnection(function(error, tempCont) { if(!!error) { tempCont.release(); console.log('Error'); } else { console.log('Connected!'); tempCont.query("select * from table", function(error,

问题 I have a NODEJS code to connect to MySql database: var mysql = require('mysql') var express = require('express') var app = express() var connection = mysql.createPool({ connectionLimit: 50, host : 'ip', user : 'username', password : 'pass', database : 'mydb' }); app.get('/', function(req, resp) { connection.getConnection(function(error, tempCont) { if(!!error) { tempCont.release(); console.log('Error'); } else { console.log('Connected!'); tempCont.query("select * from table", function(error,

问题 I have a NODEJS code to connect to MySql database: var mysql = require('mysql') var express = require('express') var app = express() var connection = mysql.createPool({ connectionLimit: 50, host : 'ip', user : 'username', password : 'pass', database : 'mydb' }); app.get('/', function(req, resp) { connection.getConnection(function(error, tempCont) { if(!!error) { tempCont.release(); console.log('Error'); } else { console.log('Connected!'); tempCont.query("select * from table", function(error,

问题 I am working on a project where I had got my password field value's hashCode and stored that hashCode in DB for security purposes.Now I want to recover the password from the hashCode.How can I do it? Is it possible to get the String value back from the hashCode ?If it is not, can anyone suggest me a better way to store my password in anyother format? 回答1: You know that several objects can have same hash(), as it mentioned in java doc for Object.hashCode() It is not required that if two

问题 I am working on a project where I had got my password field value's hashCode and stored that hashCode in DB for security purposes.Now I want to recover the password from the hashCode.How can I do it? Is it possible to get the String value back from the hashCode ?If it is not, can anyone suggest me a better way to store my password in anyother format? 回答1: You know that several objects can have same hash(), as it mentioned in java doc for Object.hashCode() It is not required that if two

问题 I want to make a webpage which has download option for a pdf, but i want it password protected i.e. if someone clicks on that link he has to enter username and password and if he directly open the link "www.example.com/~folder_name/abc.pdf" then server ask for password first and then allow to download Edit: I want user to view the file in browser, not to force it to download here is my code <?php /* authentication script goes here*/ $file = 'http://example.com/folder_name/abc.pdf'; //header(