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Padding (cryptography)

In cryptography, padding is any of a number of distinct practices which all include adding data to the beginning, middle, or end of a message prior to encryption. In classical cryptography, padding may include adding nonsense phrases to a message to obscure the fact that many messages end in predictable ways, e.g. sincerely yours.

Explore topics related to Padding (cryptography) — including Symmetric cryptography, Traffic analysis and protection via padding & Classical cryptography.

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Overview

Classical cryptography

Symmetric cryptography

Public key cryptography

Traffic analysis and protection via padding

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Map overview Semantic statistics

Padding (cryptography)

Nodes58
Edges57
Triples11
Avg. degree1.97
Density0.034483
Components1

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Important terminology Word statistics

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Important terminology

padding message bytes block length size messages example number byte added bits many plaintext attacker scheme may random payload end

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
MD-5instance ofDamgård construction0.80text
SHA-1instance ofDamgård construction0.80text
and SHA-2 family such as SHA-224instance ofDamgård construction0.80text
SHA-256instance ofDamgård construction0.80text
SHA-384instance ofDamgård construction0.80text
SHA-512instance ofDamgård construction0.80text
SHA-512/224instance ofDamgård construction0.80text
and SHA-512/256Block cipher mode of operationCipher-block chaininginstance ofDamgård construction0.80text
ciphertext stealing or residual block termination avoid the need for padding.A disadvantage of padding is that it makes the plain text of the message susceptible to padding oracle attacksinstance ofMore intricate ways of ending a message0.80text
and SHA-512/256 Block cipher mode of operationCipher-block chaininginstance ofDamgård construction0.80text
PKCSinstance ofpadding is the process of preparing a message for encryption or signing using a specification or scheme0.80text

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    Researching Padding (cryptography)? Use this map to explore Symmetric cryptography, Traffic analysis and protection via padding & Classical cryptography and other closely related topics, then follow useful entities and relationships into deeper research. Automatically generated connections are research leads, so verify important facts in reliable sources.