AP® Cybersecurity glossary

Block encryption

Also called: block cipher

Course: AP® Cybersecurity Shows up in: Unit 5: Securing Applications and Data

Encryption that handles information in fixed-size chunks called blocks, producing an output block for each input block.

Appears in the course and exam description (CED): 5.3.A.5

Why it matters in Unit 5

AES is a block cipher with 128-bit blocks.

Example

A 40-byte message encrypted as three 16-byte blocks.

Learn it properly, with a checkpoint 5.3 Protecting Stored Data with Cryptography

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