Crate soft_fido2_crypto 

Pure Rust cryptographic primitives for FIDO2/CTAP

This crate provides the cryptographic operations required by the CTAP protocol:

• ECDH: P-256 key agreement for PIN protocol
• ECDSA: ES256 signatures for attestation and assertions
• EdDSA: Ed25519 signatures for attestation and assertions
• PIN Protocols: V1 (AES-256-CBC + HMAC) and V2 (HMAC-only)
• HMAC-SHA256: For hmac-secret extension

All implementations follow the FIDO2 specification: https://fidoalliance.org/specs/fido-v2.2-rd-20230321/fido-client-to-authenticator-protocol-v2.2-rd-20230321.html

Re-exports

pub use error::CryptoError;

pub use error::Result;

Modules

ecdh

P-256 ECDH for CTAP PIN protocol key agreement

ecdsa

P-256 ECDSA (ES256) signatures for CTAP attestation and assertions

eddsa

Ed25519 (EdDSA) signatures for CTAP assertions

error

Error types for cryptographic operations

pin_protocol

PIN/UV authentication protocols (V1 and V2)

Structs

Zeroizing

Zeroizing is a a wrapper for any Z: Zeroize type which implements a Drop handler which zeroizes dropped values.

Functions

hmac_sha256

Compute HMAC-SHA-256