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.
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Security Awareness – Encryption | Office of Information …
- Download Sophos Free Encryption 184.108.40.206 - 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
- How to encrypt (almost) anything | PCWorld - September 22nd, 2017
- Private Internet Access | VPN Encryption - September 21st, 2017
- Encryption Substitutes | Privacy | Encryption - September 21st, 2017
- Data Encryption: Hardware & Software Security: Online ... - September 21st, 2017
- How To Enable BitLocker Drive Encryption In Windows 10? - September 21st, 2017
- PGP Encryption Tool - iGolder - September 21st, 2017
- encryption - How to encrypt String in Java - Stack Overflow - September 21st, 2017
- Encryption Software Market, Size, Trends and Forecast 2020 - September 21st, 2017
- Encryption Definition - Tech Terms - September 20th, 2017
- Why You Should Be Encrypting Your Devices and How to Easily Do It - Gizmodo - September 6th, 2017
- Black Hats, White Hats, and Hard Hats The Need for Encryption in Mining and Resources - Australian Mining - September 6th, 2017
- How can enterprises secure encrypted traffic from cloud applications? - TechTarget - September 6th, 2017
- Encryption Explained - Arizona Daily Wildcat - September 6th, 2017
- News in brief: Call to link encryption to ID; Facebook maps everyone ... - Naked Security - September 2nd, 2017
- 'Independent' gov law reviewer wants users preemptively identified before they're 'allowed' to use encryption - The Register - September 2nd, 2017
- High-Dimensional Quantum Encryption Performed in Real-World ... - Futurism - September 2nd, 2017
- It's Time to Replace Your Encryption-Key Spreadsheet - Data Center Knowledge - September 2nd, 2017
- Legislation to limit smartphone encryption 'may be necessary,' deputy AG Rosenstein says - Washington Times - August 31st, 2017
- Cloud Encryption Market by Component, Service Model, Organization Size, Vertical And Region - Global Forecast to ... - Markets Insider - August 31st, 2017
- Cipher Suites: Ciphers, Algorithms and Negotiating Security Settings - Hashed Out by The SSL Store (registration) (blog) - August 31st, 2017
- Encryption in Office 365 - Office 365 - August 29th, 2017
- Need-to-Know Only: Use Encryption to Make Data Meaningless to ... - Security Intelligence (blog) - August 29th, 2017
- Four strategies to prevent data encryption from hijacking your network - Digital News Asia - August 29th, 2017
- Amber Rudd is wrong - real people do want end-to-end encryption - ITProPortal - August 29th, 2017
- Why encryption is for everyone - IFEX - August 29th, 2017
- 4D quantum encryption successful in first real-world test - New Atlas - New Atlas - August 29th, 2017
- For the First Time Ever, Quantum Communication is Demonstrated in Real-World City Conditions - Futurism - August 26th, 2017
- High-Dimensional Quantum Encryption Takes Place in Real-World ... - Photonics.com - August 26th, 2017
- Hedvig Bakes Encryption into Software-Defined Storage Platform - IT Business Edge (blog) - August 26th, 2017
- Hedvig storage upgrade adds flash tier, encryption options - TechTarget - August 26th, 2017
- How to use EFS encryption to encrypt individual files and folders on Windows 10 - Windows Central - August 26th, 2017
- Cloud Encryption Market Worth 2401.9 Million USD by 2022 - Markets Insider - August 23rd, 2017
- To Protect Genetic Privacy, Encrypt Your DNA - WIRED - August 23rd, 2017
- Data Encryption in OneDrive for Business and SharePoint Online - August 21st, 2017
- Researchers use encryption to keep patients' DNA private - Engadget - August 21st, 2017
- Additional proof that Lancaster County Commissioners should reconsider encrypting police transmissions - LancasterOnline - August 21st, 2017
- iPhone Secure Enclave firmware encryption key leaked - TechTarget - August 21st, 2017
- Encryption, speed push the modern mainframe into the future - TechTarget - August 21st, 2017
- Hardware encryption vs software encryption: the simple guide - Kroll Ontrack UK (press release) (blog) - August 21st, 2017
- Encryption Technology Could Protect the Privacy of Your DNA - Gizmodo - August 21st, 2017
- Beginner's guide to Windows 10 encryption - Windows Central - August 18th, 2017
- Encryption key for iPhone 5s Touch ID exposed, opens door to further research - AppleInsider (press release) (blog) - August 18th, 2017
- How security pros look at encryption backdoors - Help Net Security - August 18th, 2017
- The Laws of Mathematics and the Laws of Nations: The Encryption Debate Revisited - Lawfare (blog) - August 18th, 2017
- 72 percent of security pros say encryption backdoors won't stop terrorism - BetaNews - August 18th, 2017
- Ex-MI5 Boss Evans: Don't Undermine Encryption - Infosecurity Magazine - August 14th, 2017
- Despite end to end encryption, apps like WhatsApp, Messenger are still vulnerable to hacking: Study - Firstpost - August 13th, 2017
- What is Encryption? (with pictures) - wiseGEEK - August 12th, 2017
- Ex-MI5 chief warns against crackdown on encrypted messaging ... - The Guardian - August 12th, 2017
- Former UK security service head says weakening encryption would be too dangerous - 9to5Mac - August 12th, 2017
- News in brief: facial recognition planned for Carnival; spy chief backs encryption; ginger emoji planned - Naked Security - August 12th, 2017
- Avoid getting lost in encryption with these easy steps - We Live Security (blog) - August 12th, 2017