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-rw-r--r--cmd/sigsum-debug/hashleaf/hashleaf.go38
1 files changed, 38 insertions, 0 deletions
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
+}