signing

type Method interface {
	// Alg returns the algorithm name (e.g., "HS256")
	Alg() string

	// Sign creates a signature for the given signing string
	Sign(signingString string, key any) (string, error)

	// Verify verifies a signature against the signing string
	Verify(signingString string, signature string, key any) error

	// Hash returns the crypto.Hash used by this method
	Hash() crypto.Hash
}