Encryption is the transformation of information into a form that is only readable by those with particular knowledge or technology to prevent others who might have access to the information from reading it. It has long been used for messages in transit, whether carried by hand, transmitted via radio or sent over a computer network if the message is intercepted, the interceptor would be unable to interpret the information. It also serves an important role for stored information to protect it in case of loss or theft.
While the concepts and processes of encryption greatly pre-date modern computing, the topic has become increasingly popular in computing over the past few years. This has largely been fueled by the vast increase of information transfer over computer networks and the increased security concerns that accompany a massively interconnected “always online” computing environment.
OIToffers and supports PGP software and licenses to faculty and staff for whole disk encryption. Whole disk encryption will keep educational records and confidential data secure in case your laptop is lost or stolen. This information should only be stored on a mobile device, like a laptop, when there is a specific business purpose. Find out if PGP whole disk encryption is right for you.
If we had a number we wished to keep secret (say the combination to a safe), one option to protect it is to encrypt the number, after all we can’t store the combination to the safe inside the safe. Let’s say the combination is 12-28-11 which we shorten to just 122811. Let’s use some simple math to make it into a scrambled number.
Here’s an equation that adds a secret number (n) to the combination and then multiplies the result by the same secret number:
If we pick 5 as our secret number, then we get:
Our scrambled number, 614080, is an encrypted version of our safe combination. To get our combination number back, we need to know our secret number and the formula used to create the scrambled number. Here’s the formula:
We insert our secret number and our scrambled number:
And solve the equation to find our combination:
We have successfully developed our own encryption process for our safe combination.
The process of transforming readable information into an unreadable form. Making the safe combination into the scrambled number.
The process of transforming encrypted information back into its readable form. Making the scrambled number back into the safe combination.
The item used, along with the algorithm, to encrypt and decrypt information. . In the example above, the secret number, n, was our key. The key could be a password, a special file or a hardware device often called a token Strong encryption processes may use multiple keys like both a password and a token.
The mathematical technique used, along with the key(s), to encrypt and decrypt information. In the example above, the equation, n*(combination + n)=scrambled number, was our algorithm. Popular encryption algorithms include: AES, DES, triple-DES, RSA, blowfish, IDEA
Information is considered “at rest” when it is saved to a computer or storage device (like a CD, tape or thumbdrive) which is usually in contrast to “in transit”. Note that data can be considered “at rest” while physically moving like someone carrying a CD with information.
Information is “in transit” when it is being transferred over a network. This could be copying a file from a file server, submitting a webpage order form or sending an email.
The behavior of an encryption technology/product which keeps a file encrypted when it is moved between disks or computers. Many forms of encryption only keep information encrypted when stored in a particular location.
Symmetrical vs Asymmetrical
Encryption/decryption processes are often referred to as being either symmetrical or asymmetrical, which relates to what keys are used to encrypt and decrypt information.
In symmetrical encryption, the same key is used to encrypt and decrypt the information. The most common use of this technique is password encryption where the same password is used to encrypt and decrypt the information. This method is simple and useful when sharing the key isn’t problematic (either the key isn’t shared or all parties are trusted with the information). It requires that all parties who need to encrypt or decrypt the information safely obtain the key.
In asymmetrical encryption, there are two different keys one used to encrypt the information and one used to decrypt the information. In this approach, the key used to encrypt the information cannot be used to decrypt it. This technique is useful when sharing a key might be problematic. These two keys are often referred to as public and private keys. As the names imply, the public key is openly distributed as it can only be used to encrypt information and the private key that can decrypt the information is protected.
Key managementPerhaps the most important aspect of encryption deployment is management of keys. This includes what types of keys are used (passwords, files, tokens, certificates, etc), how they are given to users, how they are protected and how to deal with a lost key scenario. Each technology and product handles this differently, but the lost key scenario is usually the most concerning since it could lead to either an unauthorized person decrypting information or the inability for authorized people to decrypt information. Many encryption horror stories come in the form of not being able to decrypt the only copy of very important information. Pay careful attention to key generation, distribution, use, recovery and security when looking into encryption options.
Impacts to system/data managementWhen files or disks are encrypted, an IT administrator might have to adapt some of their management processes or tools. For example, what impact do encrypted hard drives have on system imaging? What about the use of wake-on-LAN for management? The answers to these questions vary with your management processes and the encryption product, so it’s important to understand how encryption products will impact your IT environment.
When does encryption stay with the file?Many forms of encryption only protect information while it is transferred over the network (like a website using SSL) or while it is stored in a particular place (like on an encrypted hard drive). This means that once the file is moved out of the situation, it is no longer encrypted. This often confuses users who think encryption “sticks” to files and they can email a file stored on an encrypted disk and it will stay encrypted as an email attachment, or copy a file from an encrypted disk to a thumb drive and the file will remain encrypted. It’s important to understand the conditions under which a file will be encrypted and explain those conditions to those in your department. Since encryption conditions vary by technology, product and implementation, there isn’t a general rule.
Follow this link:
Security Awareness – Encryption | Office of Information …
- encryption - How secure is AES-256? - Cryptography Stack ... - June 2nd, 2019
- The World's Email Encryption Software Relies on One Guy, Who ... - May 5th, 2019
- Encryption breakthrough could keep prying eyes away from your ... - May 5th, 2019
- What Is Data Encryption? Definition, Best Practices & More ... - May 1st, 2019
- IronClad Encryption Partners with Data443 Risk Mitigation ... - April 30th, 2019
- What Is Encryption? An Overview of Modern Encryption ... - April 30th, 2019
- Symmetric vs. Asymmetric Encryption What are differences? - April 29th, 2019
- Difference Between Hashing and Encryption - ssl2buy.com - April 29th, 2019
- What is Advanced Encryption Standard (AES)? - Definition ... - April 29th, 2019
- How to Encrypt Your Wireless Network - Lifewire - April 29th, 2019
- After Paris, Encryption Will Be a Key Issue in the 2016 ... - April 22nd, 2019
- Email encryption - Wikipedia - April 8th, 2019
- What is Encryption, and Why Are People Afraid of It? - April 8th, 2019
- Data encryption | cryptology | Britannica.com - April 8th, 2019
- How to Enable Full-Disk Encryption on Windows 10 - April 1st, 2019
- After Paris, Encryption Will Be a Key Issue in the 2016 Race - March 27th, 2019
- Does Encryption Really Help ISIS? Heres What You Need to ... - March 27th, 2019
- AES and RSA Encryption Explained - March 27th, 2019
- Encryption: What it is and why its important - Norton - March 23rd, 2019
- Email encryption in transit - Gmail Help - March 21st, 2019
- Authenticated encryption - Wikipedia - March 19th, 2019
- Email Encryption Options for MDaemon Email Server - March 14th, 2019
- How to Encrypt Files on Windows - Tutorial - Toms Guide - March 6th, 2019
- Encryption, Key Management - bank information security - March 5th, 2019
- Which Types of Encryption are Most Secure? - February 7th, 2019
- JSON Object Signing and Encryption (JOSE) - February 4th, 2019
- What Is Encryption, and How Does It Work? - January 26th, 2019
- The Pitfalls of Facebook Merging Messenger, Instagram, and ... - January 26th, 2019
- Encryption: Avoiding the Pitfalls That Can Lead to Breaches - January 14th, 2019
- Encryption | Information Technology Services - December 31st, 2018
- Encryption - Investopedia - December 16th, 2018
- How to Protect Data at Rest with Amazon EC2 Instance Store ... - December 9th, 2018
- Next Generation Encryption - blogs.cisco.com - December 4th, 2018
- 3 Different Data Encryption Methods - DataShield blog - November 22nd, 2018
- Security and encryption | Documentation | Turtl - November 18th, 2018
- Encryption | General Data Protection Regulation (GDPR) - November 16th, 2018
- Using Encryption and Authentication Correctly (for PHP ... - November 13th, 2018
- Encryption | SANS Security Awareness - November 9th, 2018
- Types of Encryption | Office of Information Technology - November 5th, 2018
- Use Your own Encryption Keys with S3s Server-Side ... - October 29th, 2018
- What is Tokenization vs Encryption - Benefits & Uses Cases ... - October 12th, 2018
- Device Encryption | it.ucsf.edu - October 12th, 2018
- 5 Common Encryption Algorithms and the Unbreakables of the Future - September 15th, 2018
- Top 5 best encryption software tools of 2018 | TechRadar - August 26th, 2018
- New EBS Encryption for Additional Data Protection | AWS ... - August 22nd, 2018
- Best Encryption Software 2018 - Encrypt Files on Windows PCs - August 20th, 2018
- Download BestCrypt Volume Encryption 3.78.05 / 4.01.09 Beta - July 26th, 2018
- End-to-end encryption - Wikipedia - July 24th, 2018
- Download Symantec Encryption Desktop 10.4.0 Build 1100 - July 15th, 2018
- HTTPS - Wikipedia - July 10th, 2018
- AES encryption - June 20th, 2018
- Encrypt email messages - Outlook - June 20th, 2018
- Download Sophos Free Encryption 18.104.22.168 - softpedia.com - June 19th, 2018
- Does Skype use encryption? | Skype Support - June 16th, 2018
- Encryption- Computer & Information Security - Information ... - May 25th, 2018
- Enable BitLocker on USB Flash Drives to Protect Data - May 25th, 2018
- Transparent Data Encryption (TDE) - msdn.microsoft.com - April 12th, 2018
- Encryption Software Market - Global Forecast to 2022 - March 24th, 2018
- What AES Encryption Is And How It's Used To Secure File Transfers - March 24th, 2018
- Encryption vs. Cryptography - What is the Difference? - March 24th, 2018
- Energy-efficient encryption for the internet of things | MIT News - February 16th, 2018
- The Best Encryption Software - TopTenReviews - February 16th, 2018
- File-Based Encryption | Android Open Source Project - February 7th, 2018
- Beyond Encryption | Secure Enterprise email using existing ... - February 1st, 2018
- Azure Search enterprise security: Data encryption and user ... - January 26th, 2018
- Skype finally getting end-to-end encryption | Ars Technica - January 13th, 2018
- FBI chief says phone encryption is a 'major public safety issue' - January 13th, 2018
- Encryption and Export Administration Regulations (EAR) - December 27th, 2017
- Key (cryptography) - Wikipedia - December 21st, 2017
- security - Fundamental difference between Hashing and ... - December 15th, 2017
- What Is Encryption? | Surveillance Self-Defense - December 4th, 2017
- Comodo Disk Encryption Download - softpedia.com - December 1st, 2017
- Encryption - Simple English Wikipedia, the free encyclopedia - November 24th, 2017
- BitLocker Drive Encryption Overview - technet.microsoft.com - November 23rd, 2017
- The Encrypting File System - technet.microsoft.com - November 18th, 2017
- FBI cant break the encryption on Texas shooters smartphone - November 13th, 2017
- DOJ: Strong encryption that we dont have access to is ... - November 13th, 2017
- DOJ Fires Up New War With Apple Over Encryption - November 12th, 2017
- Data Encryption and Decryption (Windows) - October 14th, 2017
- Trumps DOJ tries to rebrand weakened encryption as responsible ... - October 11th, 2017