-
Notifications
You must be signed in to change notification settings - Fork 0
/
sig_verify.go
executable file
·74 lines (64 loc) · 1.87 KB
/
sig_verify.go
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
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
package stagedstreamsync
import (
"fmt"
"github.com/pkg/errors"
"github.com/zennittians/intelchain/core"
"github.com/zennittians/intelchain/core/types"
"github.com/zennittians/intelchain/crypto/bls"
"github.com/zennittians/intelchain/internal/chain"
)
var emptySigVerifyErr *sigVerifyErr
type sigVerifyErr struct {
err error
}
func (e *sigVerifyErr) Error() string {
return fmt.Sprintf("[VerifyHeaderSignature] %v", e.err.Error())
}
func verifyAndInsertBlocks(bc blockChain, blocks types.Blocks) (int, error) {
for i, block := range blocks {
if err := verifyAndInsertBlock(bc, block, blocks[i+1:]...); err != nil {
return i, err
}
}
return len(blocks), nil
}
func verifyBlock(bc blockChain, block *types.Block, nextBlocks ...*types.Block) error {
var (
sigBytes bls.SerializedSignature
bitmap []byte
err error
)
if len(nextBlocks) > 0 {
// get commit sig from the next block
next := nextBlocks[0]
sigBytes = next.Header().LastCommitSignature()
bitmap = next.Header().LastCommitBitmap()
} else {
// get commit sig from current block
sigBytes, bitmap, err = chain.ParseCommitSigAndBitmap(block.GetCurrentCommitSig())
if err != nil {
return errors.Wrap(err, "parse commitSigAndBitmap")
}
}
if err := bc.Engine().VerifyHeaderSignature(bc, block.Header(), sigBytes, bitmap); err != nil {
return &sigVerifyErr{err}
}
if err := bc.Engine().VerifyHeader(bc, block.Header(), true); err != nil {
return errors.Wrap(err, "[VerifyHeader]")
}
return nil
}
func verifyAndInsertBlock(bc blockChain, block *types.Block, nextBlocks ...*types.Block) error {
//verify block
if err := verifyBlock(bc, block, nextBlocks...); err != nil {
return err
}
// insert block
if _, err := bc.InsertChain(types.Blocks{block}, false); err != nil {
if errors.Is(err, core.ErrKnownBlock) {
return nil
}
return errors.Wrap(err, "[InsertChain]")
}
return nil
}