Cyber Hygiene
Security Risks From Employees Working From Home
Audits Don't Solve Security Problems
Is 'Discover, Classify, Protect' Wrong In Cybersecurity Today?
Breadth Vs. Depth: Cybersecurity Industry Has Been Focusing On The Wrong Thing
Third Party Vendors
The Rise Of DASB, Sunset Your DLP
How to Prevent Source Code Modification & Leaks
End Source Code Theft
Why Isn't DLP Preventing Data Breaches and Data Leakage?
SecureCircle Data Access Security Broker (DASB) Selected By Quanta Storage To Eliminate Insider Threats
Organizations Should Bulk Up Cybersecurity In Case Of Iranian Cyber Attack
The Evolution of Data Protection
Ransomware stealing data before encrypting
Insider Threats Infographic
Who collected 4 billion records on 1.2 billion users?
Cisco Systems - Target of Malicious Insiders
New Yorks SHIELD Act
Insider Threat at Lion Air (Update)
How to Prevent the Lion Air Databreach
CIO IT Taiwan | SecureCircle 控管檔案讀取 權不怕合作生變造成洩密
How to Prevent the Mastercard Data Breach
Capital One Hacker Breached 30 Companies Through a Single Cloud Provider
Government Organizations Are Not Ready for Cyberattacks
How to Prevent the Boeing Data Leak
End Insider Threats Without Impacting Users Or Business Workflow
Singapore Overhauling Data Protection Practices
SecureCircle available on Taiwan Government CloudMarketplace
SecureCircle placed on UK Government Framework Catalogue
The New Federal Data Strategy
SecureCircle announces United Kingdom and EMEA Distributor, Care21
Quest Diagnostics and LabCorp in Trouble
Insider Threat in the Air Force
Disruptor Daily | What trends are shaping cybersecurity in 2019?
Disruptor Daily | What is the future of cybersecurity? Experts share their insights
How to Combat the Business Email Compromise Scam
How to Prevent Government Data Breaches
Availability Bias in Cybersecurity
How to Minimize Your Exposure to Employee Mistakes
A Look Inside Toyotas Second Data Breach
Four Keys to Data-Centric Data Protection
Asymmetric Information Causes Data Breaches
SecureCircle Introduces Send Secure for Agentless Protected Data Sharing
The Financial Consequences of a Data Breach
Insider Threats Can Happen to Anyone
Federal Data Privacy Laws Are Coming
Forget Collection 1: Here comes Collections 2-5
Forbes | 10 Industries On The Cusp Of Technological Disruption
Collection 1: Not a Big Deal?
It All Adds Up: Better Cybersecurity is a Necessity in 2019
Why New Year Resolutions Fail
9 Costly Security Mistakes
Security InfoWatch | The Last Mile Security at the Edge
2019 Security Predictions(Infographic)
Security Today | Rethinking Access Control
We love what we do - 2018 Review (Infographic)
Holiday Hacks Are Not Going Away
Solving Multi-Cloud Security
A better solution than web bugs for internal visibility
Why File Encryption is not enough - A Customer Conversation
Security, Visibility, and Control
SecureCircle Introduces Enhanced Cybersecurity Offering for Cloud-First Enterprises
Healthcare Needs a Change
What is old is new: Cold Boot Attacks
Inside Information - Data that should NEVER leave the organization
CTimes | SecureCircle and Netbridge Distribution Partnership (Chinese)
SecureCircle Announces Asia Pacific Distributor, NetBridge Technologies
Insider Threats
CSO | The hidden security problem we all need to know about
Opt-Out is more than blocking SPAM
What is Opt-Out Data Centric Protection? And why is it so important
Digital Hygiene in a GDPR World
Security Info Watch | Enterprises Beware: Cybersecurity Challenges in the Cloud
GDPR Readiness (Infographic)
The Lost Laptop
Strategic Finance | Security in a World of Zero Trust
Reading Between the Lines - The Real Impact of Insider Threat (Infographic)
Protecting Internal Data
Press & News Embargos
CSO | GDPR: Where are we now?
SecureCircle @ CIAB FEBRABAN, Sao Paulo Brazil - The Recap
California Consumer Privacy (The next generation of GDPR)
I am safe. My data is encrypted. Right?
University of Texas MD Anderson Cancer Center ordered to pay $4.3 million in HIPAA violations
Is my Air Gapped Computer Safe?
The Broken 80/20 Rule
SecureCircle and Fiandeira Tecnologia Showcase Unstructured Data Solution at CIAB FEBRABAN
SecureCircle will be exhibiting at CIAB Sao Paulo Brazil June 2018
Throw Tech Away - The Rise of a New Generation of Data Security
GDPR Compliance Tips: The Top Experts Speak
Are you ready for a password-less world?
CSO | The Impact of Human Behavior on Security
Account compromised? What about your file content?
Age old discussion: Convenience versus Security
SDxCentral | Four Security Myths You Need to Shake
Security Today | Digital Security in a Zero Trust World
MegaMinds AIthority Interview with Jeff Capone
2018 Govies Awards
Data Protection needs to be agnostic like Switzerland

Modern Encryption from the Beginning : The Split-Key

Written by 
April 24, 2020

Today we can experience a whole new world of encryption due to a man who led the way in cryptography. Thanks to Whitfield Diffie and his invention of public-key cryptography, we started down a path to provide privacy over digital communications and commerce.

Before public keys, cryptography systems relied on symmetric keys. The symmetric keys were unreliable and challenging because the same key passed down from person to person, which increased the chances of compromise. Because of this, Diffie forged a new path. He wanted to provide everything from his one-way authentication scheme along with uniquely delivering encryption and decryption. These two ideas merged into the invention of splitting up the key.

Diffie created two different keys, one public and one private, to ensure privacy and decrypt the messages that were encrypted. The public key would perform the job of scrambling a plain text message, which included a secret trapdoor built into it so that outsiders are not able to read it. On the other hand, the private key unlocked the trapdoor message to allow the holder to read it. This public key system provides everyone the ability to generate a unique key pair where no outsider can gain separate components.

These public-private keys started up modern-day encryption. It was able to solve many problems such as untrustworthy administrators, the privacy of communication, the authenticity of senders and documents, and electronic commerce. Whitfield Diffie’s invention of the split key was able to unlock the door to a new way of encryption and has forever transformed the way we think of encryption.

While some technologies such as Pretty Good Privacy (PGP) still rely on a public and private-key methodology, breakthroughs such as the split key have leed to innovations in encryption, including the Portable Encrypting File System (PEFS). A PEFS takes the benefits of split-key encryption even further. With the split key, the sender can safely transmit a message to the intended recipient, but the sender has no control over the recipient forwarding on the decrypted message. The sender was able to protect the data in transit but has lost control of data once the recipient decrypts it.

A PEFS integrates with any modern file system, so any data which is protected is portable to other devices allowing the data to remain encrypted at all times. In SecureCircle’s patented implementation of a PEFS, the file is never decrypted, so control over the data always remains even if recipients try to forward the file to third parties.

The SecureCircle agent monitors each request to data within the PEFS and ensures the device, users, and application are allowed access to the content. SecureCircle has a feature called Application Allowed List, which allows only specific applications to access to protected files. Applications not on the Allowed List are only allowed to copy, move, and rename files.

The original file and the protected file have the same MD5 checksum because to the host operating system and applications, the original file and PEFS protected file are identical.

Learn more about SecureCircle Features

Building upon the early innovation of split key encryption, our PEFS enables users to transparently access protected data without having to know any encryption key. Users with authorization will see no change in their workflow. Unauthorized users will see access denied errors when attempting to access protected data. The PEFS handles the operation of encryption and decryption while our Data Access Security Broker (DASB) manages access control policies that allow users to interact with the data.

Prevent Data Breaches

Let’s discuss your unique cybersecurity challenges and needs.

Contact Us

If you want to notified when we post the newest content about mitigating insider threats, data breaches, protecting source code, and DASB, please subscribe to our SecureCircle newsletter.