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authorLinus Nordberg <linus@nordberg.se>2022-04-28 15:46:01 +0200
committerLinus Nordberg <linus@nordberg.se>2022-04-28 15:46:01 +0200
commit47490448be1b7006641e6badc6a84b1441b27698 (patch)
treefb386e9e6ccb90b368da63d0a8085d114fd8431c /cmd/sigsum-debug/leaf/hash
parent2dcd7bca2f3e69fb6f1770ec0bf740d8956978ca (diff)
parentb270a4c0d10947fe480bad7330b31bb793225968 (diff)
Merge branch 'merge/sigsum-debug'
Diffstat (limited to 'cmd/sigsum-debug/leaf/hash')
-rw-r--r--cmd/sigsum-debug/leaf/hash/hash.go42
1 files changed, 42 insertions, 0 deletions
diff --git a/cmd/sigsum-debug/leaf/hash/hash.go b/cmd/sigsum-debug/leaf/hash/hash.go
new file mode 100644
index 0000000..9bc845e
--- /dev/null
+++ b/cmd/sigsum-debug/leaf/hash/hash.go
@@ -0,0 +1,42 @@
+package hash
+
+import (
+ "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, optKeyHash, optSignature string, optShardHint uint64) error {
+ if len(args) != 0 {
+ return fmt.Errorf("trailing arguments: %s", strings.Join(args, ", "))
+ }
+ data, err := fmtio.BytesFromStdin()
+ if err != nil {
+ return fmt.Errorf("read stdin: %w", err)
+ }
+ keyHash, err := fmtio.KeyHashFromHex(optKeyHash)
+ if err != nil {
+ return fmt.Errorf("parse key hash: %w", err)
+ }
+ sig, err := fmtio.SignatureFromHex(optSignature)
+ if err != nil {
+ return fmt.Errorf("parse signature: %w", err)
+ }
+
+ preimage := types.HashFn(data)
+ leaf := types.Leaf{
+ Statement: types.Statement{
+ ShardHint: optShardHint,
+ Checksum: *types.HashFn(preimage[:]),
+ },
+ Signature: sig,
+ KeyHash: keyHash,
+ }
+ leafHash := types.LeafHash(leaf.ToBinary())
+
+ fmt.Printf("%s\n", hex.Serialize(leafHash[:]))
+ return nil
+}