In the current discussion about identity management, there is relatively little discussed about what kinds of systems might be used to store and manipulate the large amount of personal information that is out there about people’s lives. Many people see computers as a bad influence on technology; they see it as a enemy and an obstacle rather than a help and an opportunity. However, Computational Engineering reveals that such enemy and obstacle can actually be the thing itself.
In this article, we’ll explore some ways that algorithms might be employed to make systems more trustworthy or reliable, or to prevent them from being so unreliable. Of course, each of these strategies has to be implemented in conjunction with each other; otherwise, the individual or organization is susceptible to malicious users who do not adhere to the proper strategies.
Encryption is a powerful means of protecting data. It has been a tool in cryptography for quite some time now. In this article, we’ll discuss two varieties of encryption: public key encryption and symmetric encryption.
Public key encryption involves using a public key (the kind that is given out by a trusted third party such as Microsoft or Yahoo!) to encrypt a message. For example, when someone sends you an encrypted email message, you can decrypt it with their public key and then use their private key to decrypt it.
Symmetric encryption involves using only the symmetric encryption algorithm — a function such as encrypt – to encrypt a message. For example, a hacker or a phisher would only be able to decrypt a message that is sent using the symmetric encryption algorithm.
What are the risks involved in transmitting electronically?
The main risk is that information can be intercepted. Data can be encrypted using public key encryption. This ensures that the message has not been decrypted unless you decrypt it using your private key. When a hacker or a phisher uses the public key encryption, however, they can potentially decode any information that you are trying to hide.
What are some uses for public key encryption?
It is commonly used by organizations to securely store and retrieve information using encrypting messages. The messages are copied as are, and then updated daily or at least several times daily. This ensures that even if someone were to intercept them, they would not be able to read and use them unless they have accessed the encryption keys.
These keys are then used to decipher the encrypted messages or to attempt to decrypt ones that have been sent elsewhere. It is difficult however, to determine whether or not a message has been encrypted.
What are some uses for symmetric encryption?
Some applications on a computer use symmetric encryption. These include file and disk encryption, the encryption of screen memories, and the encryption of basic mathematical operations.
The former method, called file/folder encryption, protects your files or folders from unauthorized users. It hides the location of the files inside your computer just like the folder redo button.
The latter type, called disk encryption, requires that you run a program on the hard drive before you can encrypt a file. This allows the user to run a program and take control of the file. The program can then encrypt the file and then run a code to open the file.
Programs that use symmetric encryption include the moreromputer hard drive encryptionprograms. These programs are written to encrypt files and delete them afterwards. The adepts who develop these programs are able to tell whether or not a file has been encrypted by running a program on the hard drive.
Apart from storing information, these hard drive encryption programs also protect the user’s computer system in other ways. After encrypting the files, the programmer wants to erase the information completely. Therefore, conventional methods to destroy files are not available.
The second method that determines the existence of files encrypted is the file/folder location. Location is determined by where the file or folder would be placed in the computer system. If the file or folder does not have a specific location, then conventional file deletion methods would not be effective and would not be able to remove all the data.
The third method uses theasterisks computer files to protect certain areas of the hard drive. Although this is not a foolproof method of protecting the files, it is one of the most effective methods of deleting files. Because the asterisks leave indentations in the files, it is possible to identify and delete the asterisks.
Because the technology which ensures our protection is changing all the time, the strategies used to protect us are also changing along with it. The need to protect your computer and the information that is in it is not only limited to viruses and worms. Every day, new threats of different types are released. Therefore, the need to maintain our computer and information systems is not only necessary but also crucial. Everyday, new threats Lynn field arise.