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47 lines
1.1 KiB
47 lines
1.1 KiB
// Copyright 2022 ROC. All rights reserved.
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// Use of this source code is governed by a MIT style
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// license that can be found in the LICENSE file.
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package sign
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import (
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"crypto/ecdsa"
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"crypto/sha256"
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"time"
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"github.com/fbsobreira/gotron-sdk/pkg/proto/core"
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"github.com/rocboss/paopao-ce/pkg/crypto"
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"google.golang.org/protobuf/proto"
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)
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// SignTransaction 签名交易
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func SignTransaction(transaction *core.Transaction, key *ecdsa.PrivateKey) ([]byte, error) {
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transaction.GetRawData().Timestamp = time.Now().UnixNano() / 1000000
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rawData, err := proto.Marshal(transaction.GetRawData())
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if err != nil {
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return nil, err
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}
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h256h := sha256.New()
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h256h.Write(rawData)
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hash := h256h.Sum(nil)
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contractList := transaction.GetRawData().GetContract()
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for range contractList {
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signature, err := crypto.Sign(hash, key)
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if err != nil {
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return nil, err
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}
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transaction.Signature = append(transaction.Signature, signature)
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}
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return hash, nil
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}
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func TrimLeftZeroes(s []byte) []byte {
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idx := 0
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for ; idx < len(s); idx++ {
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if s[idx] != 48 {
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break
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}
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}
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return s[idx:]
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}
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