diff options
Diffstat (limited to 'cmd/sigsum-debug/leaf/hash/hash.go')
-rw-r--r-- | cmd/sigsum-debug/leaf/hash/hash.go | 42 |
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 +} |