Supported Features
JSON Web Keys (JWK)
JWK is defined in RFC 7517.
NOTE: To represent BLS keys this implementation refers to draft-ietf-cose-bls-key-representations-05.
JWKs are currently used in the proof generation and verification of JWPs.
The tables below represent which kty and crv are supported at momement.
JWK Key Type
| Key Type | Support |
|---|---|
OKP | ✔ |
EC | ✔ |
RSA | ✘ |
oct | ✘ |
JWK Elliptic Curve
The standard list of Elliptic Curves can be found here:
| Curve Name | Support |
|---|---|
P-256 | ✘ |
P-384 | ✘ |
P-521 | ✘ |
secp256k1 | ✘ |
Ed25519 | ✘ |
Ed448 | ✘ |
X25519 | ✘ |
X448 | ✘ |
This list is made from the currenlty active draft Barreto-Lynn-Scott Elliptic Curve Key Representations for JOSE and COSE - v05.
| Curve Name | Support |
|---|---|
BLS12381G2 | ✔ |
BLS12381G1 | ✘ |
BLS48581G2 | ✘ |
BLS48581G2 | ✘ |
JSON Web Proof Algorithms
The supported algorithm are defined in in the JPA specification.
NOTE: Keep in mind that these specifications are in the early stages, and there is a high likelihood that they will undergo significant changes in the future.
Single Use
| Algorithm | Support | Remarks |
|---|---|---|
SU-ES256 | ✘ | Named here |
SU-ES384 | ✘ | |
SU-ES512 | ✘ |
BBS
Note: This library leverages the ZKryptium cryptographic library to perform BBS algorithm operations.
The BBS-SHAKE256 value is temporary and awaits an update to the official draft that will define names to support the ciphersuite BBS_BLS12381G1_XOF:SHAKE-256_SSWU_RO_H2G_HM2S_ specified in BBS+.:
| Algorithm | Support | Remarks |
|---|---|---|
BBS | ✔ | |
BBS-SHAKE256 | ✔ |
MAC
These are defined here:
| Algorithm | Support | Remarks |
|---|---|---|
MAC-H256 | ✘ | |
MAC-H384 | ✘ | |
MAC-H512 | ✘ | |
MAC-K25519 | ✘ | |
MAC-K448 | ✘ | |
MAC-H256K | ✘ |
JSON Web Proof Serialization
| Format | Support |
|---|---|
| Compact | ✔ |
| JSON | ✘ |
| CBOR | ✘ |