Merge pull request #17 from smallstep/herman/update-readme

Update README

README.md

@@ -1,7 +1,7 @@
 # pkcs7
 
-[![GoDoc](https://godoc.org/go.mozilla.org/pkcs7?status.svg)](https://godoc.org/go.mozilla.org/pkcs7)
-[![Build Status](https://github.com/mozilla-services/pkcs7/workflows/CI/badge.svg?branch=master&event=push)](https://github.com/mozilla-services/pkcs7/actions/workflows/ci.yml?query=branch%3Amaster+event%3Apush)
+[![Go Reference](https://pkg.go.dev/badge/github.com/smallstep/pkcs7.svg)](https://pkg.go.dev/github.com/smallstep/pkcs7)
+[![Build Status](https://github.com/smallstep/pkcs7/workflows/CI/badge.svg?query=branch%3Amain+event%3Apush)](https://github.com/smallstep/pkcs7/actions/workflows/ci.yml?query=branch%3Amain+event%3Apush)
 
 pkcs7 implements parsing and creating signed and enveloped messages.
 
@@ -16,54 +16,48 @@ import (
  "fmt"
  "os"
 
- "go.mozilla.org/pkcs7"
+ "github.com/smallstep/pkcs7"
 )
 
 func SignAndDetach(content []byte, cert *x509.Certificate, privkey *rsa.PrivateKey) (signed []byte, err error) {
  toBeSigned, err := NewSignedData(content)
  if err != nil {
- err = fmt.Errorf("Cannot initialize signed data: %s", err)
- return
+ return fmt.Errorf("Cannot initialize signed data: %w", err)
  }
  if err = toBeSigned.AddSigner(cert, privkey, SignerInfoConfig{}); err != nil {
- err = fmt.Errorf("Cannot add signer: %s", err)
- return
+ return fmt.Errorf("Cannot add signer: %w", err)
  }
 
  // Detach signature, omit if you want an embedded signature
  toBeSigned.Detach()
 
  signed, err = toBeSigned.Finish()
  if err != nil {
- err = fmt.Errorf("Cannot finish signing data: %s", err)
- return
+ return fmt.Errorf("Cannot finish signing data: %w", err)
  }
 
  // Verify the signature
  pem.Encode(os.Stdout, &pem.Block{Type: "PKCS7", Bytes: signed})
  p7, err := pkcs7.Parse(signed)
  if err != nil {
- err = fmt.Errorf("Cannot parse our signed data: %s", err)
- return
+ return fmt.Errorf("Cannot parse our signed data: %w", err)
  }
 
  // since the signature was detached, reattach the content here
  p7.Content = content
 
  if bytes.Compare(content, p7.Content) != 0 {
- err = fmt.Errorf("Our content was not in the parsed data:\n\tExpected: %s\n\tActual: %s", content, p7.Content)
- return
+ return fmt.Errorf("Our content was not in the parsed data:\n\tExpected: %s\n\tActual: %s", content, p7.Content)
  }
  if err = p7.Verify(); err != nil {
- err = fmt.Errorf("Cannot verify our signed data: %s", err)
- return
+ return fmt.Errorf("Cannot verify our signed data: %w", err)
  }
 
  return signed, nil
 }
 ```
 
 
-
 ## Credits
-This is a fork of [fullsailor/pkcs7](https://github.com/fullsailor/pkcs7)
+
+This is a fork of [mozilla-services/pkcs7](https://github.com/mozilla-services/pkcs7) which, itself, was a fork of [fullsailor/pkcs7](https://github.com/fullsailor/pkcs7).