Crate crypto 

Cryptographic signing for Heddle states.

Structs

Ed25519Signer

Ed25519 signer.

P256Signer

P-256 (ECDSA) signer.

RsaSigner

RSA signer.

Enums

PemKind

The wire format inferred from a PEM blob’s BEGIN line, or Raw* when the input is just hex/base64 seed bytes with no PEM wrapper. Each variant maps to exactly one Signer constructor.

SignatureStatus

Signature verification result.

SignerError

Error type for signer operations.

StateSignatureError

Error type for state signature operations.

Traits

Signer

Trait for cryptographic signers.

StateSigningExt

Functions

classify_pem

Classify a PEM/raw-key blob by its header (or shape, for unwrapped seed material). Pure function — no I/O, no allocation beyond what the input trim implies.

load_signer

Load a signer from a key file. When algorithm is None, the PEM header (or raw-seed shape) selects the backend via [pem_loader::load_signer_from_pem].

public_key_bytes

signature_bytes

state_signature_from_signer

verify_payload_signature

Verify a detached signature over an arbitrary payload. Used by non-state-signature flows (e.g. ReviewSignature) that already have a canonical byte payload built upstream.

verify_state_signature

Verify a state’s signature.

verify_state_signature_bytes