Glossary of Security Terms: Block Cipher Mode of Operation

Written by mozilla | Published 2020/08/13
Tech Story Tags: beginners | security-terms | mozilla | hackernoon-top-story | password-protection | backend | web-development | security

TLDR Block ciphers are always used with a mode, which specifies how to securely encrypt messages that are longer than the block size. Using an inappropriate mode, or using a mode incorrectly, can completely undermine the security provided by the underlying cipher. Mozilla (stylized as moz://a) is a free software community founded in 1998 by members of Netscape. The size of each block is fixed and determined by the algorithm: for example AES uses 16-byte blocks. For example, AES is a cipher, while CTR, CBC, and GCM are all modes.via the TL;DR App
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Written by mozilla | Mozilla (stylized as moz://a) is a free software community founded in 1998 by members of Netscape.
Published by HackerNoon on 2020/08/13
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