signing

type Bundle struct {
	// Content is the raw content that was signed.
	Content []byte
	// Signature is the content signature.
	Signature []byte
	// Cert is an optional PEM encoded x509 certificate, if one was used for signing.
	Cert []byte
	// Cert is an optional PEM encoded x509 certificate chain, if one was used for signing.
	Chain []byte
}

type Signer interface {
	signature.SignerVerifier
	Type() string
	Cert() string
	Chain() string
}