From 8fee6561fbc21bd44f67dff9f365aa14da293d99 Mon Sep 17 00:00:00 2001
From: Rasmus Dahlberg <rasmus@mullvad.net>
Date: Wed, 13 Apr 2022 16:10:43 +0200
Subject: clean-up sigsum-debug structure

---
 cmd/sigsum-debug/hashleaf/hashleaf.go | 38 +++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)
 create mode 100644 cmd/sigsum-debug/hashleaf/hashleaf.go

(limited to 'cmd/sigsum-debug/hashleaf')

diff --git a/cmd/sigsum-debug/hashleaf/hashleaf.go b/cmd/sigsum-debug/hashleaf/hashleaf.go
new file mode 100644
index 0000000..00f8bbb
--- /dev/null
+++ b/cmd/sigsum-debug/hashleaf/hashleaf.go
@@ -0,0 +1,38 @@
+package hashleaf
+
+import (
+	"crypto/ed25519"
+	"fmt"
+
+	"git.sigsum.org/sigsum-go/pkg/hex"
+	"git.sigsum.org/sigsum-go/pkg/types"
+	"git.sigsum.org/sigsum-tools-go/internal/util"
+)
+
+func Main(_ []string, optPriv string, optShardHint uint64) error {
+	data, err := util.BytesFromStdin()
+	if err != nil {
+		return fmt.Errorf("sign: %v", err)
+	}
+	priv, err := util.SignerFromHex(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)
+	}
+	leaf := types.Leaf{
+		Statement: stm,
+		Signature: *sig,
+		KeyHash:   *types.HashFn(priv.Public().(ed25519.PublicKey)[:]),
+	}
+	lh := types.LeafHash(leaf.ToBinary())
+
+	fmt.Printf("%s\n", hex.Serialize(lh[:]))
+	return nil
+}
-- 
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