Encryption Home Cybersecurity Dictionary Encryption Encryption is a method in which plaintext or other data is converted from readable form to an encoded version that can only be decrypted with a decryption key. It is the most effective way to achieve data security for the end-to-end protection of sensitive data transmitted across networks (data in motion) as well as sensitive data held in various systems and devices (data at rest). A popular internet security protocol that uses public key encryption is the Secure Sockets Layer (SSL), along with its successor, Transport Layer Security (TLS). These protocols are commonly used by browsers and internet servers when transmitting confidential data such as financial details for e-Commerce transactions. Today's most widely used encryption algorithms fall into two categories: symmetric (single key, faster but requires sender to share the key with the recipient) and asymmetric (public key cryptography, uses two linked keys one public and one private). Many regulatory organizations and standards bodies (such as PCI-DSS) require encryption. Related TermsDLP - Data Loss PreventionSSL/TLS (Secure Sockets Layer/ Transport Layer Security)PCI and PCI DSS -The Payment Card Industry Data Security Standard Share: Seeking Clarity? View the Cybersecurity Dictionary for top terms searched by your peers. Back to the Dictionary RELATED INSIGHTS BLOG April 13, 2018 Observations on Smoke Tests – Part 2 There are a variety of scanning tools in the market today, from commercial to open source. Some are intended only for identifying a particular vulnera... See Details Read more about Observations on Smoke Tests – Part 2 BLOG February 06, 2018 What Is SSL Web Inspection and Where Should It Occur? (Part 3) In parts one and two of this blog series, I provided an overview of SSL web inspection, and dove deeper into how SSL inspection solutions work and met... See Details Read more about What Is SSL Web Inspection and Where Should It Occur? (Part 3) How Can We Help? Let us know what you need, and we will have an Optiv professional contact you shortly.