1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
|
package consistency
import (
"bytes"
"fmt"
"git.sigsum.org/sigsum-go/internal/fmtio"
"git.sigsum.org/sigsum-go/pkg/types"
)
func Main(args []string, optOldSize, optNewSize uint64, optOldRoot, optNewRoot string) error {
if len(args) != 0 {
return fmt.Errorf("trailing arguments: %v", args)
}
b, err := fmtio.BytesFromStdin()
if err != nil {
return fmt.Errorf("read: %w", err)
}
var proof types.ConsistencyProof
if err := proof.FromASCII(bytes.NewBuffer(b), optOldSize, optNewSize); err != nil {
return fmt.Errorf("parse proof: %w", err)
}
oldRoot, err := fmtio.HashFromHex(optOldRoot)
if err != nil {
return fmt.Errorf("parse old root: %w", err)
}
newRoot, err := fmtio.HashFromHex(optNewRoot)
if err != nil {
return fmt.Errorf("parse new root: %w", err)
}
if err := proof.Verify(&oldRoot, &newRoot); err != nil {
return fmt.Errorf("verify: %w", err)
}
return nil
}
|
