Salsa20
E42566
Salsa20 is a high-speed stream cipher designed by Daniel J. Bernstein, widely used in modern cryptography for its strong security and efficient software performance.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Salsa20 canonical | 8 |
| Salsa20/20 | 2 |
| Salsa20/8 | 2 |
| Salsa20/12 | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T338723 — 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: Salsa20 Context triple: [ChaCha20, basedOn, Salsa20]
-
A.
ChaCha20
ChaCha20 is a modern stream cipher designed by Daniel J. Bernstein, widely used for its high performance and strong security in protocols like TLS.
-
B.
AES-GCM
AES-GCM is an authenticated encryption mode of the Advanced Encryption Standard that provides both data confidentiality and integrity, widely used in modern network and security protocols.
-
C.
RC4 stream cipher
The RC4 stream cipher is a once-widely used symmetric key algorithm known for its simplicity and speed in software, but now considered insecure due to multiple discovered vulnerabilities.
-
D.
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.
-
E.
Diffie–Hellman key exchange
Diffie–Hellman key exchange is a foundational cryptographic protocol that enables two parties to securely establish a shared secret over an insecure communication channel.
- 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: Salsa20 Target entity description: Salsa20 is a high-speed stream cipher designed by Daniel J. Bernstein, widely used in modern cryptography for its strong security and efficient software performance.
-
A.
ChaCha20
ChaCha20 is a modern stream cipher designed by Daniel J. Bernstein, widely used for its high performance and strong security in protocols like TLS.
-
B.
AES-GCM
AES-GCM is an authenticated encryption mode of the Advanced Encryption Standard that provides both data confidentiality and integrity, widely used in modern network and security protocols.
-
C.
RC4 stream cipher
The RC4 stream cipher is a once-widely used symmetric key algorithm known for its simplicity and speed in software, but now considered insecure due to multiple discovered vulnerabilities.
-
D.
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.
-
E.
Diffie–Hellman key exchange
Diffie–Hellman key exchange is a foundational cryptographic protocol that enables two parties to securely establish a shared secret over an insecure communication channel.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
cryptographic primitive
ⓘ
stream cipher ⓘ symmetric-key algorithm ⓘ |
| application |
disk encryption
ⓘ
file encryption ⓘ network protocols ⓘ |
| blockSize | 512 bits ⓘ |
| category | modern cryptography ⓘ |
| coreFunctionName | Salsa20 hash core ⓘ |
| designedFor | software implementation ⓘ |
| designer | Daniel J. Bernstein ⓘ |
| designGoal |
high software performance
ⓘ
strong security ⓘ |
| designType | add-rotate-xor cipher ⓘ |
| encryptionMethod | XOR keystream with plaintext ⓘ |
| familyMember |
Salsa20
self-linksurface differs
ⓘ
surface form:
Salsa20/12
Salsa20 self-linksurface differs ⓘ
surface form:
Salsa20/20
Salsa20 self-linksurface differs ⓘ
surface form:
Salsa20/8
|
| influenced | ChaCha ⓘ |
| introducedIn | 2005 ⓘ |
| keySize |
128 bits
ⓘ
256 bits ⓘ |
| license | public domain ⓘ |
| nonceSize | 64 bits ⓘ |
| operatingMode | synchronous stream cipher ⓘ |
| outputType | keystream ⓘ |
| relatedTo | ChaCha20 ⓘ |
| rounds |
12
ⓘ
20 ⓘ 8 ⓘ |
| securityClaim | 256-bit security for 256-bit keys ⓘ |
| specifiedIn | eSTREAM portfolio documentation ⓘ |
| standardVariant |
Salsa20
self-linksurface differs
ⓘ
surface form:
Salsa20/20
|
| stateSize | 512 bits ⓘ |
| status |
no practical attacks on full-round Salsa20/20 known as of 2024
ⓘ
widely analyzed ⓘ |
| submissionCategory | software ⓘ |
| submittedTo | eSTREAM ⓘ |
| updateFunction | quarter-round function ⓘ |
| usesConstant | sigma constant ⓘ |
| usesOperation |
bit rotation
ⓘ
bitwise XOR ⓘ modular addition ⓘ |
| usesPrimitive | ARX operations ⓘ |
| usesStructure |
4x4 matrix of 32-bit words
ⓘ
hash-function-like core ⓘ |
| variantNonceSize | 96 bits ⓘ |
| wordSize | 32 bits ⓘ |
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: Salsa20 Description of subject: Salsa20 is a high-speed stream cipher designed by Daniel J. Bernstein, widely used in modern cryptography for its strong security and efficient software performance.
Referenced by (13)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Salsa20/8
this entity surface form:
Salsa20/8
this entity surface form:
Salsa20/12
this entity surface form:
Salsa20/20
this entity surface form:
Salsa20/20