Cryptography

Block Cipher

A symmetric key encryption algorithm that encrypts data in fixed-size blocks, such as AES and 3DES.

Quick answer: A symmetric key encryption algorithm that encrypts data in fixed-size blocks, such as AES and 3DES.

This term page is part of the Protermify Cybersecurity glossary and is published as static HTML for fast indexing and clear language coverage.

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Quick answer

A symmetric key encryption algorithm that encrypts data in fixed-size blocks, such as AES and 3DES.

Why it matters

Block Cipher matters because it supports clear communication in Cryptography contexts for SOC Analysts, Security Engineers, and Incident Responders. It also connects to aviation training and exam language such as CISSP, CompTIA Security+, and CEH.

Editorial context

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Questions and answers

Questions and answers

What is Block Cipher?

In this glossary, Block Cipher refers to: A symmetric key encryption algorithm that encrypts data in fixed-size blocks, such as AES and 3DES.

How is Block Cipher used in cybersecurity?

In cybersecurity communication, this term appears in contexts such as: "AES is a block cipher that encrypts 128-bit blocks of data using keys of various lengths."

Why does Block Cipher matter in cybersecurity?

Block Cipher matters because it supports clear communication in Cryptography contexts for SOC Analysts, Security Engineers, and Incident Responders. It also connects to aviation training and exam language such as CISSP, CompTIA Security+, and CEH.

Who uses Block Cipher?

Block Cipher is mainly used by SOC Analysts, Security Engineers, and Incident Responders.

What category does Block Cipher belong to?

In this glossary, Block Cipher is grouped under Cryptography. Related pages in this category explain adjacent procedures, commands and operational concepts.

Where does this definition come from?

This definition is sourced from ISO 27001, NIST Cybersecurity Framework, MITRE ATT&CK and published by Protermify Cybersecurity as a static cybersecurity reference page.

Definition

A symmetric key encryption algorithm that encrypts data in fixed-size blocks, such as AES and 3DES.

Operational example

AES is a block cipher that encrypts 128-bit blocks of data using keys of various lengths.

Definition language

English reference definition

Source

ISO 27001, NIST Cybersecurity Framework, MITRE ATT&CK

Category

Cryptography

Exam relevance

  • CISSP
  • CompTIA Security+
  • CEH

Target audience

  • SOC Analysts
  • Security Engineers
  • Incident Responders

Related terms

Use the related links below to continue through connected cybersecurity terminology.

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