= XML Signature library for Golang

I wrote this to sign XML documents produced by using Go's default XML encoder. It's not capable of signing arbitrary XML because canonicalization of external XML is a good bit more work. Despite its limitations is the way to go for most Go programs because you don't have to link to C code or run an external command to create a signature. The following example shows how to produce a simple signature.

import ( "crypto/tls" "encoding/xml" "os"

"github.com/amdonov/xmlsig"

)

func example() error { cert, err := tls.LoadX509KeyPair("cert.pem", "key.pem") if err != nil { return err } signer, err := xmlsig.NewSigner(cert) if err != nil { return err } doc := Test1{ Data: "Hello, World!", ID: "_1234", } sig, err := signer.CreateSignature(doc) if err != nil { return err } doc.Signature = sig encoder := xml.NewEncoder(os.Stdout) return encoder.Encode(doc) }

type Test1 struct { XMLName xml.Name xml:"urn:envelope Envelope" ID string xml:",attr" Data string xml:"urn:envelope Data" Signature *xmlsig.Signature }