From 70ee62fcb790da7bfb01667f7c315723ed12609e Mon Sep 17 00:00:00 2001
From: Rasmus Dahlberg <rasmus.dahlberg@kau.se>
Date: Fri, 27 Nov 2020 17:45:30 +0100
Subject: cleaned-up x509util

---
 instance.go | 22 ++++++++++++++++++++--
 1 file changed, 20 insertions(+), 2 deletions(-)

(limited to 'instance.go')

diff --git a/instance.go b/instance.go
index 7a353fe..6732698 100644
--- a/instance.go
+++ b/instance.go
@@ -8,6 +8,7 @@ import (
 	"crypto/sha256"
 	"crypto/x509"
 	"encoding/base64"
+	"io/ioutil"
 	"net/http"
 
 	"github.com/golang/glog"
@@ -61,12 +62,16 @@ func NewInstance(lp *LogParameters, client trillian.TrillianLogClient, deadline
 
 // NewLogParameters initializes log parameters, assuming ed25519 signatures.
 func NewLogParameters(treeId int64, prefix string, anchorPath, keyPath string, maxRange, maxChain int64) (*LogParameters, error) {
-	anchorList, anchorPool, err := x509util.LoadTrustAnchors(anchorPath)
+	anchorList, anchorPool, err := loadTrustAnchors(anchorPath)
 	if err != nil {
 		return nil, err
 	}
 
-	key, err := x509util.LoadEd25519SigningKey(keyPath)
+	pem, err := ioutil.ReadFile(keyPath)
+	if err != nil {
+		return nil, fmt.Errorf("failed reading %s: %v", keyPath, err)
+	}
+	key, err := x509util.NewEd25519PrivateKey(pem)
 	if err != nil {
 		return nil, err
 	}
@@ -109,3 +114,16 @@ func (i *Instance) registerHandlers(mux *http.ServeMux) {
 		mux.Handle(endpoint.path, endpoint.handler)
 	}
 }
+
+// loadTrustAnchors loads a list of PEM-encoded certificates from file
+func loadTrustAnchors(path string) ([]*x509.Certificate, *x509.CertPool, error) {
+	pem, err := ioutil.ReadFile(path)
+	if err != nil {
+		return nil, nil, fmt.Errorf("failed reading trust anchors: %v", err)
+	}
+	anchorList, err := x509util.NewCertificateList(pem)
+	if err != nil || len(anchorList) == 0 {
+		return nil, nil, fmt.Errorf("failed parsing trust anchors: %v", err)
+	}
+	return anchorList, x509util.NewCertPool(anchorList), nil
+}
-- 
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