Data Integrity is one of the most important aspects of a Public Key Infrastructure. Data Integrity isn’t a term only used in PKI schemes, it is a basic concept in computer science and is the science that determines if data or information is whole or complete. For example, data integrity signifies that no matter what type of process or transaction occurs, data remains in its true form and is not compromised or changed in any form. This is a crucially important part of a PKI scheme and without data integrity the PKI fails.
A Public Key Infrastructure consists of encrypting a message, sending it across the Internet, and having a receiver decrypt and read that message. If that message is compromised or changed anywhere in that process, the system has failed and the message in not valid or to be trusted. Data Integrity must be maintained during the process of encryption transfer, storing the message, and retrieving the message.
Data can be compromised in a number of different ways. The first and most severe is through a malicious attack by a hacker. A Public Key Infrastructure must ensure that data is protected from the minute it is encrypted and protected from attacks. The most common method used to prevent hackers from compromising data integrity is through hashing. A message is hashed when it is shortened and a digital signature added to the shortened form. This is an important step in a PKI scheme and should not be missed.
Other factors may contribute to compromised data integrity; this includes a computer hard drive crash or fail. It is important to consistently back up your data and ensure that you always have safe copies of your data stored securely in case of computer error or failure. In addition, data should be backed up in case of natural disasters as well. Fire, flood, and earthquakes can cause sensitive data to become permanently damaged, destroyed, and lost. By having this data securely backed up, you can ensure that you always have true data that hasn’t been permanently compromised.
Software bugs, viruses, and malicious programs can access your data and compromise it. It is imperative that you keep your computer properly maintained and free from malicious software. This is the number one way that attackers will gain access to your sensitive information and compromise your data.
It is also possible for human errors to occur when entering data into your computer for transmission. Using software that will detect errors and notify you that something is wrong can best prevent this. Human error can detract from your Public Key Infrastructure and one simple error can cause the successful failure of transmitted messages. This software will also help you discover any errors that occur during transmission of the message.
Using these safety and security tools is vital to the success of your Public Key Infrastructure and ensuring that your data remains whole and is never compromised. Data Integrity is the heart of any PKI scheme and must be protected to ensure that messages are sent without errors.