askar-crypto

The askar-crypto crate provides the basic key representations and cryptographic operations used by aries-askar.

Supported Key Types

| Key Type | Feature | Operations | Notes | | -------------------- | --------- | ------------------------------------------------------------------------------------------------------------------------------ | ------------------------------- | | AES-GCM | aes | AEAD encryption
JWK export | A128GCM and A256GCM | | AES-CBC-HMAC-SHA2 | aes | AEAD encryption
JWK export | A128CBC-HS256 and A256CBC-HS512 | | AES Key Wrap | aes | AEAD encryption
JWK export | A128KW and A256KW | | (X)ChaCha20-Poly1305 | chacha | AEAD encryption
JWK export | aka C20P, XC20P | | BLS12-381 | bls | bls-signature-compatible key generation
JWK import/export | G1, G2, and G1G2 key types | | Ed25519 | ed25519 | EdDSA signatures
JWK import/export | | | X25519 | ed25519 | DH key exchange
JWK import/export | | | K-256 | k256 | ECDSA signatures
DH key exchange
JWK import/export | aka secp256k1 | | P-256 | p256 | ECDSA signatures
DH key exchange
JWK import/export | aka nist256p1, secp256r1 |

'Any' Key support

The any_key feature (which depends on alloc) provides a generic interface for creating and working with any supported key type.

JOSE Authenticated Encryption

This crate provides implementations of the ECDH-ES and ECDH-1PU (draft 4) key agreement operations, for use in deriving the CEK or key wrapping key when producing or consuming JWE envelopes using these protection algorithms.

no-std

This crate supports the optional alloc feature, gating types and operations that depend on a global allocator. The std feature depends on alloc, and adds support for std::error::Error.