nominalKeySize
P77466
predicate
Indicates the standard or designated size value associated with a key in a cryptographic or data structure context.
Observed surface forms (13)
- publicKeySize ×4
- keySizeRange ×3
- IVSize ×2
- updatedKeySize ×2
- AESKeySizes ×1
- inputKeySize ×1
- keySizeBits ×1
- keySizeExample ×1
- keySizeType ×1
- originalKeySizeRange ×1
- originalMaximumKeySize ×1
- outputKeySize ×1
- typicalPrivateKeySize ×1
Sample triples (21)
| Subject | Object |
|---|---|
| AEAD_CHACHA20_POLY1305 | 256 via predicate surface "keySizeBits" ⓘ |
| Curve25519-based schemes | 256-bit private scalars with clamping via predicate surface "typicalPrivateKeySize" ⓘ |
| DSA | 1024 bits via predicate surface "originalMaximumKeySize" ⓘ |
| DSA | 1024–3072 bits via predicate surface "keySizeRange" ⓘ |
|
DSA (Digital Signature Algorithm)
surface form:
DSA
|
2048 bits via predicate surface "updatedKeySize" ⓘ |
|
DSA (Digital Signature Algorithm)
surface form:
DSA
|
3072 bits via predicate surface "updatedKeySize" ⓘ |
|
DSA (Digital Signature Algorithm)
surface form:
DSA
|
512–1024 bits via predicate surface "originalKeySizeRange" ⓘ |
| Data Encryption Standard | 64 bits ⓘ |
| ECC | 256-bit ECC key roughly comparable to 3072-bit RSA key via predicate surface "keySizeExample" ⓘ |
| Ed25519 | 32 bytes via predicate surface "publicKeySize" ⓘ |
| Ed448 | 57 bytes via predicate surface "publicKeySize" ⓘ |
| HC-128 | 128 bits via predicate surface "IVSize" ⓘ |
| HC-256 | 256 bits via predicate surface "IVSize" ⓘ |
|
HChaCha20 to derive subkey from main key and first 128 bits of nonce
surface form:
HChaCha20
|
256-bit key via predicate surface "inputKeySize" ⓘ |
|
HChaCha20 to derive subkey from main key and first 128 bits of nonce
surface form:
HChaCha20
|
256-bit subkey via predicate surface "outputKeySize" ⓘ |
|
NIST (for AES subset)
surface form:
NIST
|
192-bit via predicate surface "AESKeySizes" ⓘ |
| P-384 | 384-bit private keys via predicate surface "keySizeRange" ⓘ |
| P-384 | approximately 768 bits uncompressed via predicate surface "publicKeySize" ⓘ |
| P-521 | asymmetric key via predicate surface "keySizeType" ⓘ |
| P-521 | larger than P-256 and P-384 via predicate surface "publicKeySize" ⓘ |
| RFC 2144 | 40 to 128 bits via predicate surface "keySizeRange" ⓘ |