1 files changed, 30 insertions, 0 deletions
diff --git a/cmd/sigsum-debug/sign.go b/cmd/sigsum-debug/sign.go
new file mode 100644
index 0000000..130a649
--- /dev/null
+++ b/cmd/sigsum-debug/sign.go
@@ -0,0 +1,30 @@
+package main
+
+import (
+	"fmt"
+
+	"git.sigsum.org/sigsum-lib-go/pkg/hex"
+	"git.sigsum.org/sigsum-lib-go/pkg/types"
+)
+
+func CmdSign(optPriv string, optShardHint uint64) error {
+	data, err := readStdin()
+	if err != nil {
+		return fmt.Errorf("sign: %v", err)
+	}
+	priv, err := privFromHex(optPriv)
+	if err != nil {
+		return fmt.Errorf("sign: %v", err)
+	}
+	stm := types.Statement{
+		ShardHint: optShardHint,
+		Checksum: *types.HashFn(data),
+	}
+	sig, err := stm.Sign(priv)
+	if err != nil {
+		fmt.Errorf("sign: %v", err)
+	}
+
+	fmt.Printf("%s\n", hex.Serialize(sig[:]))
+	return nil
+}