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Diffstat (limited to 'cmd/sigsum-debug/head/sign')
-rw-r--r--cmd/sigsum-debug/head/sign/sign.go41
1 files changed, 41 insertions, 0 deletions
diff --git a/cmd/sigsum-debug/head/sign/sign.go b/cmd/sigsum-debug/head/sign/sign.go
new file mode 100644
index 0000000..572af9a
--- /dev/null
+++ b/cmd/sigsum-debug/head/sign/sign.go
@@ -0,0 +1,41 @@
+package sign
+
+import (
+ "bytes"
+ "fmt"
+ "strings"
+
+ "git.sigsum.org/sigsum-go/internal/fmtio"
+ "git.sigsum.org/sigsum-go/pkg/hex"
+ "git.sigsum.org/sigsum-go/pkg/types"
+)
+
+func Main(args []string, optPrivateKey, optKeyHash string) error {
+ if len(args) != 0 {
+ return fmt.Errorf("trailing arguments: %s", strings.Join(args, ", "))
+ }
+ b, err := fmtio.BytesFromStdin()
+ if err != nil {
+ return fmt.Errorf("read stdin: %w", err)
+ }
+ priv, err := fmtio.SignerFromHex(optPrivateKey)
+ if err != nil {
+ return fmt.Errorf("parse private key: %v", err)
+ }
+ keyHash, err := fmtio.KeyHashFromHex(optKeyHash)
+ if err != nil {
+ return fmt.Errorf("parse key hash: %v", err)
+ }
+
+ var input types.SignedTreeHead
+ if err := input.FromASCII(bytes.NewBuffer(b)); err != nil {
+ return fmt.Errorf("parse signed tree head: %v", err)
+ }
+ output, err := input.TreeHead.Sign(priv, &keyHash)
+ if err != nil {
+ return fmt.Errorf("sign tree head: %v", err)
+ }
+
+ fmt.Printf("%s\n", hex.Serialize(output.Signature[:]))
+ return nil
+}