SubBytes
E663913
SubBytes is a non-linear byte substitution step in the AES encryption algorithm that applies an S-box to each byte of the state to provide confusion and resist cryptanalysis.
All labels observed (1)
| Label | Occurrences |
|---|---|
| SubBytes canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T7415048 — 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: SubBytes Context triple: [MixColumns, follows, SubBytes]
-
A.
MixColumns
MixColumns is a core linear transformation step in the AES block cipher that mixes each column of the state matrix to provide diffusion and strengthen security.
-
B.
AddRoundKey
AddRoundKey is a core AES transformation step that combines the current state with a round-specific subkey using bitwise XOR to provide key-dependent confusion.
-
C.
Rijndael
Rijndael is a symmetric block cipher designed by Joan Daemen and Vincent Rijmen that was selected by NIST as the basis for the Advanced Encryption Standard (AES).
-
D.
Substitution–permutation network
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.
-
E.
Feistel network
A Feistel network is a symmetric structure for building block ciphers that splits data into halves and repeatedly applies round functions to achieve secure encryption and decryption.
- 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: SubBytes Target entity description: SubBytes is a non-linear byte substitution step in the AES encryption algorithm that applies an S-box to each byte of the state to provide confusion and resist cryptanalysis.
-
A.
MixColumns
MixColumns is a core linear transformation step in the AES block cipher that mixes each column of the state matrix to provide diffusion and strengthen security.
-
B.
AddRoundKey
AddRoundKey is a core AES transformation step that combines the current state with a round-specific subkey using bitwise XOR to provide key-dependent confusion.
-
C.
Rijndael
Rijndael is a symmetric block cipher designed by Joan Daemen and Vincent Rijmen that was selected by NIST as the basis for the Advanced Encryption Standard (AES).
-
D.
Substitution–permutation network
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.
-
E.
Feistel network
A Feistel network is a symmetric structure for building block ciphers that splits data into halves and repeatedly applies round functions to achieve secure encryption and decryption.
- F. None of above. chosen
Statements (43)
| Predicate | Object |
|---|---|
| instanceOf |
AES transformation step
ⓘ
non-linear substitution layer ⓘ |
| affects |
all 16 bytes of AES-128 state per round
ⓘ
all 16 bytes of AES-192 state per round ⓘ all 16 bytes of AES-256 state per round ⓘ |
| appliedIndependentlyTo | each state byte ⓘ |
| appliedPerRound | once per AES round except key schedule ⓘ |
| appliesFunction | byte-wise S-box lookup ⓘ |
| appliesTo | each byte of the AES state ⓘ |
| canBeImplementedAs | combinational logic in hardware ⓘ |
| category | substitution-permutation network component ⓘ |
| contributesTo |
non-linearity of AES
ⓘ
resistance to differential cryptanalysis ⓘ resistance to linear cryptanalysis ⓘ |
| definedIn |
FIPS 197
ⓘ
linked to:
Advanced Encryption Standard
|
| designedBy |
AES designers Joan Daemen and Vincent Rijmen
ⓘ
linked to:
Joan Daemen
|
| field | GF(2^8) ⓘ |
| follows | AddRoundKey in initial round structure ⓘ |
| hasInverseOperation | InvSubBytes ⓘ |
| hasProperty | non-linear ⓘ |
| hasPurpose |
provide confusion
ⓘ
resist cryptanalysis ⓘ |
| inputType | AES state byte ⓘ |
| inverseUses | inverse AES S-box ⓘ |
| isBijective | true ⓘ |
| isKeyIndependent | true ⓘ |
| isTableBasedIn | most software implementations ⓘ |
| operatesOn | 8-bit bytes ⓘ |
| outputType | substituted AES state byte ⓘ |
| partOf |
AES encryption round
ⓘ
Advanced Encryption Standard ⓘ |
| precedes | ShiftRows ⓘ |
| roundType | data transformation step ⓘ |
| SBoxConstruction | multiplicative inverse in GF(2^8) followed by affine transformation ⓘ |
| SBoxInputWidth | 8 bits ⓘ |
| SBoxOutputWidth | 8 bits ⓘ |
| SBoxSize | 256 entries ⓘ |
| securityGoal | eliminate simple algebraic relations between plaintext, ciphertext, and key ⓘ |
| standardizedBy | NIST ⓘ |
| usedIn |
AES-128
ⓘ
AES-192 ⓘ AES-256 ⓘ
linked to:
AES-256 bit
|
| uses |
AES S-box
ⓘ
linked to:
S-box
|
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: SubBytes Description of subject: SubBytes is a non-linear byte substitution step in the AES encryption algorithm that applies an S-box to each byte of the state to provide confusion and resist cryptanalysis.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.