Encryption Vs Password Protection – the Difference

One of the most important processes created to maintain the confidentiality of information is access restriction. The most common authentication processes are password protection and encryption.

The problem of Data security

The widespread introduction of computers in all activities, the constant increase in their computing power, the use of computer networks of various scales has led to the fact that the threat of loss of confidential information in data processing systems has become an integral part of almost any activity

Many users will probably say that there is no important data on their computer that can interest anyone. However, keep in mind that because the laptop sometimes connects to the corporate network, it stores user logins and passwords, authentication data for access to the Internet and corporate network, various registration information, and so on. Meanwhile, the loss of a laptop due to the owner’s carelessness or its theft, for example, from a car, is a fairly common phenomenon. Therefore, at this time the problem of data protection and restriction of access to information has become quite serious.

Password protection or Encryption: what is stronger?

Considering encryption vs password protection, we should analyze each method in more detail.

Password protection is software that allows you to protect against unauthorized access and protect the passwords themselves. A password is a set of characters entered by the user from the keyboard, which is necessary to confirm the identity of the user, or his authority to access data or to the system. Password protection is used to protect against unauthorized access. Usually, when logging into the system, the user is asked for his login, as well as an authenticator, which is most often a password.

Passwords are used to protect documents, databases, compressed archives, individual files, and entire disks, as well as accounts. With rare exceptions (for example, passwords in web browsers, keychains, or IMAP / POP3 accounts), passwords are almost never saved – neither in clear text nor in encrypted form. Instead, passwords are “hashed”, or rather, converted using a one-way math function. The result of the conversion, if executed correctly, cannot be reversed, and the original password, accordingly, cannot be “decrypted”.

Most cybersecurity experts point to two main criteria for a secure password: complexity and length. According to them, when creating a password, you need to use a long combination using different characters – numbers, letters, symbols, punctuation.

Software systems for the implementation of data encryption, having implemented the algorithms of cryptosystems, are used to develop schemes and methods of encryption, which theoretically can be bypassed only with large amounts of computing power. Modern cryptographic systems provide high stability of encrypted data by maintaining the secrecy of the cryptographic key.

The following encryption algorithms are most often used at this time:

  • DES (Data Encryption Standard);
  • Blowfish;
  • IDEA (International Decryption-Encryption Algorithm)
  • RSA (Rivest, Shamir, and Alderman);
  • PGP.

Data encryption is a method of protection in which information is converted into encrypted text and can only be recovered or decrypted by a user with the correct decryption key. Encrypted data, also known as ciphertext, appears to be encrypted or unreadable to an unauthorized person or entity. Therefore, for data protection, a data processing scheme is organized.

So, password protection implies that only authorized users have access to sensitive data. Encryption is a stronger method. Cryptographic protection is generally more effective and cheaper. The confidentiality of information is ensured by encrypting the transmitted documents or all traffic. Encryption is the reversible transformation of data in order to hide information.

How to Password Protect a Pdf on Iphone

Not only your valuable files and folders but also ordinary documents can be password protected in OS. For example, creating a password-protected PDF takes literally one minute, and now we’ll see how to do it.

Why do we need to protect PDF files with a password?

Today, the main format for the distribution and transmission of documents is PDF. In this form, the location of the text, pictures, and tables in the file will look the same on any computer, smartphone, and tablet with different operating systems. PDF software offers several tools to help protect your files from outsiders and ensure that documents are always intact and that employees and competitors cannot use them for their own purposes. And even if the document is accidentally lost or gets to competitors or ill-wishers, you can be sure that no one can open it or that it is protected from editing.

You made the document available in PDF format, but want to protect it from copying, editing, and printing so that no one duplicates your content? All you need is a good program and you can change a lot – especially when it comes to copying, editing, and printing. There is also a way to block copying with built-in PDF viewers, but this protection can usually be easily removed with special tools.

There is a way to block copying much better, more precisely more reliably. It is that all text in PDF format is converted into vector graphics. In this way, the text becomes a “picture” and even the paid version of Adobe Reader will not be able to do anything, because, from a technical point of view, there is no text.

PDF documents, like any other, can contain valuable information that you want to protect. The simplest form of security is to use a password. As a result, no one will open the document without knowing the password.

A password allows you to protect a document from one or several actions at once:

  • from opening,
  • from the press,
  • from editing,
  • from copying text, images, and other information,
  • from access to screen readers.

The password also allows you to restrict the print quality of the document and only allow some editing functions, for example:

  • operations with pages;
  • filling in form fields,
  • commenting,
  • everything except extracting pages.

How to password protect PDF files on iPhone?

You may need password protection for PDF files in a variety of situations: when sending an important document to a colleague at work, sending bank account data to a family member, banal blocking file data from other people using an iPhone, etc. The best part is that you don’t need to install any additional applications on iPhone to password-lock a PDF file – this feature is available on the system by default. So, how to password protect a PDF on iPhone?

There are the following steps to do that:

  • Find the PDF you want to password protect;
  • Right-click on it and select “Open in Program” and “View”;
  • When the file is opened in the “Preview”, in the menu bar, select “File” and “Export”;
  • On the export page, check the “Encrypt” box and enter the password with which you want to protect your PDF file;
  • To complete the procedure, click “Save”.

Thus, without entering the correct password, it will be impossible to familiarize yourself with the contents of the file and you cannot worry about the fact that an unwanted person may gain access to personal data.