The main idea of cryptography is that a group of people can use private knowledge to keep written messages secret from everyone else. The original message sent is called PLAINTEXT. The message encrypted is called the CIPHERTEXT . In both encryption and decryption process, we need a KEY to be incorporated into the process. What […]
Availability is a complete different concern from Confidentiality and Integrity. It focuses on the data’s availability when a user needs it. Its aim is easy to understand but the measures to achieve availability could be very costly. Since the September 11th attack, organizations tend to pay more effort and investment in maintaining the continuation of […]
When people talk about information security or computer security, they usually refer to Confidentiality. In deed, the origin of information security comes from the need of this in military and polictical area. Countries worry about their confidential information leaks to emeny countries. That threatens their security and standing positions in the World. If you are […]
Cryptography is the science (or Art?) of using mathematics to encrypt and decrypt data
