NIST SP 800-38A
E233813
NIST SP 800-38A is a NIST special publication that defines approved block cipher modes of operation for the Advanced Encryption Standard (AES), including methods for encryption and decryption in various security applications.
All labels observed (1)
| Label | Occurrences |
|---|---|
| NIST SP 800-38A canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T2114178 — 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: NIST SP 800-38A Context triple: [AES-CTR, standardizedIn, NIST SP 800-38A]
-
A.
NIST SP 800-38D
NIST SP 800-38D is a NIST special publication that specifies the Galois/Counter Mode (GCM) of operation for the Advanced Encryption Standard (AES) and provides guidelines for its secure use.
-
B.
NIST SP 800-56A
NIST SP 800-56A is a NIST Special Publication that specifies approved methods for public-key establishment, including Diffie–Hellman–based key agreement schemes, for use in U.S. federal cryptographic systems.
-
C.
NIST SP 800-56C
NIST SP 800-56C is a NIST Special Publication that provides recommendations for key derivation methods in key-establishment schemes used in cryptographic systems.
-
D.
NIST SP 800-56B
NIST SP 800-56B is a NIST Special Publication that provides recommendations for cryptographic key establishment using RSA-based key transport and key agreement schemes.
-
E.
FIPS 198-1
FIPS 198-1 is a U.S. federal information processing standard that specifies the security requirements and implementation details for the HMAC (Hash-based Message Authentication Code) algorithm.
- 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: NIST SP 800-38A Target entity description: NIST SP 800-38A is a NIST special publication that defines approved block cipher modes of operation for the Advanced Encryption Standard (AES), including methods for encryption and decryption in various security applications.
-
A.
NIST SP 800-38D
NIST SP 800-38D is a NIST special publication that specifies the Galois/Counter Mode (GCM) of operation for the Advanced Encryption Standard (AES) and provides guidelines for its secure use.
-
B.
NIST SP 800-56A
NIST SP 800-56A is a NIST Special Publication that specifies approved methods for public-key establishment, including Diffie–Hellman–based key agreement schemes, for use in U.S. federal cryptographic systems.
-
C.
NIST SP 800-56C
NIST SP 800-56C is a NIST Special Publication that provides recommendations for key derivation methods in key-establishment schemes used in cryptographic systems.
-
D.
NIST SP 800-56B
NIST SP 800-56B is a NIST Special Publication that provides recommendations for cryptographic key establishment using RSA-based key transport and key agreement schemes.
-
E.
FIPS 198-1
FIPS 198-1 is a U.S. federal information processing standard that specifies the security requirements and implementation details for the HMAC (Hash-based Message Authentication Code) algorithm.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
NIST Special Publication
ⓘ
cryptography standard ⓘ |
| addresses |
error propagation characteristics of modes
ⓘ
requirements for counters in CTR mode ⓘ requirements for initialization vectors ⓘ security properties of block cipher modes ⓘ throughput and efficiency considerations of modes ⓘ |
| appliesTo |
Advanced Encryption Standard
ⓘ
surface form:
AES
Advanced Encryption Standard ⓘ |
| countryOfOrigin |
United States of America
ⓘ
surface form:
United States
|
| covers | confidentiality protection using block ciphers ⓘ |
| defines |
approved block cipher modes of operation
ⓘ
decryption methods for block ciphers ⓘ encryption methods for block ciphers ⓘ |
| documentType | technical guideline ⓘ |
| focusesOn | block cipher modes of operation ⓘ |
| intendedUse |
cryptographic module implementations
ⓘ
federal information systems ⓘ |
| language | English ⓘ |
| modeDefined |
Cipher Block Chaining (CBC) mode
ⓘ
Cipher Feedback (CFB) mode ⓘ Counter (CTR) mode ⓘ Electronic Codebook (ECB) mode ⓘ Output Feedback (OFB) mode ⓘ |
| objective | standardize secure modes of operation for block ciphers ⓘ |
| partOfSeries |
NIST SP 800 series
ⓘ
surface form:
NIST Special Publication 800 series
|
| provides |
guidance on counter generation for CTR mode
ⓘ
guidance on handling partial blocks ⓘ guidance on initialization vectors ⓘ guidance on padding methods for block ciphers ⓘ |
| publishedBy | National Institute of Standards and Technology ⓘ |
| publisher | U.S. Department of Commerce ⓘ |
| relatedTo |
Advanced Encryption Standard
ⓘ
surface form:
AES
Advanced Encryption Standard ⓘ
surface form:
FIPS 197
|
| scope | modes of operation for symmetric key block ciphers ⓘ |
| status | active recommendation for block cipher modes ⓘ |
| subjectArea |
applied cryptography
ⓘ
information security ⓘ |
| targetAudience |
cryptographic engineers
ⓘ
implementers of cryptographic libraries ⓘ security architects ⓘ |
| title | Recommendation for Block Cipher Modes of Operation: Methods and Techniques ⓘ |
| usedFor |
design of cryptographic protocols
ⓘ
implementation of AES-based encryption systems ⓘ validation of cryptographic modules ⓘ |
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: NIST SP 800-38A Description of subject: NIST SP 800-38A is a NIST special publication that defines approved block cipher modes of operation for the Advanced Encryption Standard (AES), including methods for encryption and decryption in various security applications.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.