// NewSignature creates a Signature object. func NewSignature(n types.Node, c14n, sig TransformID, id string) (*Signature, error) { doc, err := n.OwnerDocument() if err != nil { return nil, err } signnode, err := clib.XMLSecTmplSignatureCreateNsPref( doc, clib.TransformID(c14n), clib.TransformID(sig), id, clib.Prefix, ) if err != nil { return nil, err } n.AddChild(signnode) return &Signature{ signmethod: sig, signnode: signnode, }, nil }