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package inclusion
import (
"bytes"
"fmt"
"git.sigsum.org/sigsum-go/internal/fmtio"
"git.sigsum.org/sigsum-go/pkg/types"
)
func Main(args []string, optLeafHash, optRootHash string, optTreeSize uint64) 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.InclusionProof
if err := proof.FromASCII(bytes.NewBuffer(b), optTreeSize); err != nil {
return fmt.Errorf("parse proof: %w", err)
}
leafHash, err := fmtio.HashFromHex(optLeafHash)
if err != nil {
return fmt.Errorf("parse leaf hash: %w", err)
}
rootHash, err := fmtio.HashFromHex(optRootHash)
if err != nil {
return fmt.Errorf("parse root hash: %w", err)
}
if err := proof.Verify(&leafHash, &rootHash); err != nil {
return fmt.Errorf("verify: %w", err)
}
return nil
}
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