Substitution–permutation network

E171101

block cipher design symmetric-key cryptographic primitive

A substitution–permutation network is a symmetric-key cryptographic design that secures data by repeatedly applying nonlinear substitutions and bitwise permutations to achieve confusion and diffusion.

Try in SPARQL Jump to: Surface forms Disambiguation Statements Elicitation Referenced by

All labels observed (2)

Label	Occurrences
Substitution–permutation network canonical	3
Substitution–Permutation Network	2

How this entity was disambiguated

This entity first appeared as the object of triple T1500506 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: Substitution–permutation network
Context triple: [Advanced Encryption Standard, cipherStructure, Substitution–permutation network]

A. Spritz cipher
Spritz cipher is a modern stream cipher and hash function designed by Ronald Rivest and Jacob Schuldt as a more secure and flexible successor to RC4.
B. Advanced Encryption Standard
Advanced Encryption Standard is a widely used symmetric block cipher standard that secures digital data in applications ranging from wireless networks to government communications.
C. SDES
SDES (Session Description Protocol Security Descriptions) is a key management mechanism used to negotiate and convey cryptographic parameters for securing media streams in real-time communication protocols.
D. Blum–Blum–Shub pseudorandom number generator
The Blum–Blum–Shub pseudorandom number generator is a cryptographically secure generator based on the hardness of factoring large composite numbers, widely studied in theoretical computer science and cryptography.
E. RC5
RC5 is a symmetric-key block cipher designed by cryptographer Ronald L. Rivest, known for its simplicity, parameter flexibility, and use in various encryption applications.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: Substitution–permutation network
Target entity description: A substitution–permutation network is a symmetric-key cryptographic design that secures data by repeatedly applying nonlinear substitutions and bitwise permutations to achieve confusion and diffusion.

A. Spritz cipher
Spritz cipher is a modern stream cipher and hash function designed by Ronald Rivest and Jacob Schuldt as a more secure and flexible successor to RC4.
B. Advanced Encryption Standard
Advanced Encryption Standard is a widely used symmetric block cipher standard that secures digital data in applications ranging from wireless networks to government communications.
C. SDES
SDES (Session Description Protocol Security Descriptions) is a key management mechanism used to negotiate and convey cryptographic parameters for securing media streams in real-time communication protocols.
D. Blum–Blum–Shub pseudorandom number generator
The Blum–Blum–Shub pseudorandom number generator is a cryptographically secure generator based on the hardness of factoring large composite numbers, widely studied in theoretical computer science and cryptography.
E. RC5
RC5 is a symmetric-key block cipher designed by cryptographer Ronald L. Rivest, known for its simplicity, parameter flexibility, and use in various encryption applications.
F. None of above. chosen

Statements (48)

Predicate	Object
instanceOf	block cipher design ⓘ symmetric-key cryptographic primitive ⓘ
aimsFor	confusion ⓘ diffusion ⓘ
applies	bitwise permutation ⓘ nonlinear substitution ⓘ
basedOn	Shannon confusion and diffusion principles ⓘ
canBeAnalyzedBy	differential cryptanalysis ⓘ linear cryptanalysis ⓘ
category	block cipher structure ⓘ
contrastsWith	Feistel network ⓘ
designedFor	hardware implementation ⓘ software implementation ⓘ
designGoal	high branch number in linear layer ⓘ low implementation cost in constrained devices ⓘ
enables	parallel implementation of S-boxes ⓘ
encryptionType	block cipher ⓘ
ensures	bit-level diffusion across rounds ⓘ nonlinear confusion of key and data ⓘ
field	cryptography ⓘ symmetric-key cryptography ⓘ
goal	resistance to differential cryptanalysis ⓘ resistance to linear cryptanalysis ⓘ
hasAdvantage	good suitability for hardware parallelism ⓘ simple round structure ⓘ
hasPart	P-layer ⓘ S-box ⓘ key mixing step ⓘ
hasProperty	bit-oriented design ⓘ key-dependent transformations ⓘ multiple rounds ⓘ
isComponentOf	modern block cipher designs ⓘ
keySchedule	round keys derived from master key ⓘ
operatesOn	binary data ⓘ
requires	secret key ⓘ
roundStructure	key mixing plus S-box plus permutation ⓘ substitution followed by permutation ⓘ
securityDependsOn	S-box nonlinearity ⓘ permutation layer diffusion properties ⓘ
structure	iterated cipher ⓘ
typicalOperationMode	fixed-size blocks ⓘ
usedIn	AES ⓘ linked to: Advanced Encryption Standard PRESENT cipher ⓘ Rijndael cipher ⓘ linked to: Rijndael Serpent cipher ⓘ
uses	permutation layers ⓘ round function ⓘ substitution boxes ⓘ

How these facts were elicited

Referenced by (5)

Full triples — surface form annotated when it differs from this entity's canonical label.

Advanced Encryption Standard → cipherStructure → Substitution–permutation network ⓘ

Feistel network → relatedConcept → Substitution–permutation network ⓘ

S-box → componentOf → Substitution–Permutation Network ⓘ

linked to: Substitution–permutation network

PRESENT → cipherStructure → Substitution–permutation network ⓘ

subject linked to: PRESENT cipher

Whirlpool → blockCipherStructure → Substitution–Permutation Network ⓘ

subject linked to: Whirlpool hash function