CAST6
E700391
CAST6 is a symmetric-key block cipher designed as an enhanced, more secure successor to the CAST5 encryption algorithm.
All labels observed (3)
| Label | Occurrences |
|---|---|
| CAST-256 | 6 |
| CAST-256 cipher | 1 |
| CAST6 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7934699 — 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: CAST6 Context triple: [CAST5, successorAlgorithm, CAST6]
-
A.
CAST5
CAST5 is a symmetric-key block cipher widely used for encryption in security protocols and applications such as PGP.
-
B.
RC6
RC6 is a symmetric block cipher designed as a candidate for the Advanced Encryption Standard (AES), known for its simplicity, efficiency, and parameterized structure.
-
C.
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.
-
D.
Serpent cipher
Serpent cipher is a symmetric-key block cipher and former AES finalist known for its strong security margin and conservative design based on a substitution–permutation network structure.
-
E.
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).
- 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: CAST6 Target entity description: CAST6 is a symmetric-key block cipher designed as an enhanced, more secure successor to the CAST5 encryption algorithm.
-
A.
CAST5
CAST5 is a symmetric-key block cipher widely used for encryption in security protocols and applications such as PGP.
-
B.
RC6
RC6 is a symmetric block cipher designed as a candidate for the Advanced Encryption Standard (AES), known for its simplicity, efficiency, and parameterized structure.
-
C.
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.
-
D.
Serpent cipher
Serpent cipher is a symmetric-key block cipher and former AES finalist known for its strong security margin and conservative design based on a substitution–permutation network structure.
-
E.
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).
- F. None of above. chosen
Statements (35)
| Predicate | Object |
|---|---|
| instanceOf |
block cipher
ⓘ
symmetric-key algorithm ⓘ |
| alsoKnownAs |
CAST-256
ⓘ
linked to:
CAST6
|
| basedOn | CAST5 ⓘ |
| blockCipherFamily | CAST family of ciphers ⓘ |
| blockSize | 128 bits ⓘ |
| category | symmetric cryptography ⓘ |
| cipherType | iterated block cipher ⓘ |
| designedAs | successor to CAST5 ⓘ |
| designedFor | 128-bit block encryption ⓘ |
| designGoal | enhanced security compared to CAST5 ⓘ |
| developedFor | general-purpose data encryption ⓘ |
| encryptionModeSupport |
CBC
ⓘ
CFB ⓘ CTR ⓘ ECB ⓘ OFB ⓘ |
| hasPredecessor | CAST5 ⓘ |
| introducedAs | enhanced CAST design for 128-bit blocks ⓘ |
| keyScheduleType | complex key schedule ⓘ |
| keySize |
128 bits
ⓘ
192 bits ⓘ 256 bits ⓘ |
| numberOfRounds | 48 ⓘ |
| publicationType | open specification ⓘ |
| roundFunctionType | nonlinear round function ⓘ |
| securityClaim |
designed to resist differential cryptanalysis
ⓘ
designed to resist linear cryptanalysis ⓘ |
| standardizedIn | RFC 2612 ⓘ |
| structure | Feistel network ⓘ |
| supports | variable key length ⓘ |
| uses |
S-boxes
ⓘ
bitwise XOR ⓘ key-dependent rotations ⓘ modular addition ⓘ |
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: CAST6 Description of subject: CAST6 is a symmetric-key block cipher designed as an enhanced, more secure successor to the CAST5 encryption algorithm.
Referenced by (8)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: CAST6
linked to: CAST6
linked to: CAST6
linked to: CAST6
linked to: CAST6
linked to: CAST6
linked to: CAST6