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-rw-r--r--cmd/sigsum_log_go/main.go10
1 files changed, 7 insertions, 3 deletions
diff --git a/cmd/sigsum_log_go/main.go b/cmd/sigsum_log_go/main.go
index 4ab9c2a..b64da1a 100644
--- a/cmd/sigsum_log_go/main.go
+++ b/cmd/sigsum_log_go/main.go
@@ -8,6 +8,7 @@ import (
"encoding/hex"
"flag"
"fmt"
+ "io/ioutil"
"net/http"
"os"
"os/signal"
@@ -34,7 +35,7 @@ var (
prefix = flag.String("prefix", "", "a prefix that proceeds /sigsum/v0/<endpoint>")
trillianID = flag.Int64("trillian_id", 0, "log identifier in the Trillian database")
deadline = flag.Duration("deadline", time.Second*10, "deadline for backend requests")
- key = flag.String("key", "", "hex-encoded Ed25519 signing key")
+ key = flag.String("key", "", "path to file with hex-encoded Ed25519 private key")
witnesses = flag.String("witnesses", "", "comma-separated list of trusted witness public keys in hex")
maxRange = flag.Int64("max_range", 10, "maximum number of entries that can be retrived in a single request")
interval = flag.Duration("interval", time.Second*30, "interval used to rotate the log's cosigned STH")
@@ -176,9 +177,12 @@ func setupInstanceFromFlags() (*instance.Instance, error) {
return &i, nil
}
-func newLogIdentity(key string) (crypto.Signer, string, error) {
- buf, err := hex.DecodeString(key)
+func newLogIdentity(keyFile string) (crypto.Signer, string, error) {
+ buf, err := ioutil.ReadFile(keyFile)
if err != nil {
+ return nil, "", err
+ }
+ if buf, err = hex.DecodeString(strings.TrimSpace(string(buf))); err != nil {
return nil, "", fmt.Errorf("DecodeString: %v", err)
}
sk := crypto.Signer(ed25519.PrivateKey(buf))