Signature is different about eos-go HOT 3 CLOSED

Not impossible the signature do not match, I will need to take a look. Are you able to provide me with the exact steps and data so that I can reproduce that?

There is a PR pending that might fix this #36, I will check when I get some time.

from eos-go.

Environment: Jungle Test Net
EOS version: 1.2.1
OS: Unbuntu Server 16.04

step 1: cleos transfer name1 name2 "10.0000 EOS" "test" -d -j //change the name to your own
{
"expiration": "2018-09-06T05:19:38",
"ref_block_num": 16295,
"ref_block_prefix": 778607569,
"max_net_usage_words": 0,
"max_cpu_usage_ms": 0,
"delay_sec": 0,
"context_free_actions": [],
"actions": [{
"account": "eosio.token",
"name": "transfer",
"authorization": [{
"actor": "name1",
"permission": "active"
}
],
"data": "0000d5cc4....................."
}
],
"transaction_extensions": [],
"signatures": [
"SIG_K1_SIGNATURE SIGNED BY CLEOS WALLET"
],
"context_free_data": []
}

step 2 eos-go: the main code as the following:

package main

import (
"encoding/hex"
"fmt"
"io/ioutil"
"net/http"
"strings"
"time"

"github.com/eoscanada/eos-go"
"github.com/eoscanada/eos-go/ecc"

)

func main(){
action := &eos.Action{}

pls := make([]eos.PermissionLevel, 0)
pl := eos.PermissionLevel{}
pl.Actor = "name1"
pl.Permission = "active"
pls = append(pls, pl)

action.Account = "eosio.token"
action.Name = "transfer"
action.Authorization = pls

action.HexData, _ = hex.DecodeString("0000d5cc4.....................")
actions := make([]*eos.Action, 0)
actions = append(actions, action)

tx := &eos.Transaction{}

tx.ContextFreeActions = make([]*eos.Action, 0)
tx.Actions = actions
tx.RefBlockNum = 16295
tx.RefBlockPrefix = 778607569
t, _ := time.Parse("2006-01-02T15:04:05", "2018-09-06T05:19:38")
tx.Expiration = eos.JSONTime{t}
tx.Extensions = make([]*eos.Extension, 0)

stx := eos.NewSignedTransaction(tx)

privKey, _ := ecc.NewPrivateKey("the Private key of  name1")
txdata, cfd, _ := stx.PackedTransactionAndCFD()
chainID, _ := hex.DecodeString("038f4b0fc8ff18a4f0842a8f0564611f6e96e8535901dd45e43ac8691a1c4dca")
sigDigest := eos.SigDigest(chainID, txdata, cfd)

sig, _ := privKey.Sign(sigDigest)
stx.Signatures = append(stx.Signatures, sig)
fmt.Println(stx.String())    //The json string is exactly the same as that generated by cleos except sign.

}

The two signatures are different.

I tried several other ways to generate transaction, e.g.
txopts := &eos.TxOptions{}
txopts.ChainID, _ =
hex.DecodeString("038f4b0fc8ff18a4f0842a8f0564611f6e96e8535901dd45e43ac8691a1c4dca")
txopts.HeadBlockID, _ = hex.DecodeString("0000.....")
txopts.MaxCPUUsageMS = 0
txopts.MaxNetUsageWords = 0
txopts.DelaySecs = 0
txopts.Compress = eos.CompressionNone

The result is the same as the above.

from eos-go.

See #36 .. nothing guarantees a signature of a privkey+payload to be identical each time, for it to be valid. It will be canonical (thus recognized as valid by nodeos), but again that doesn't mean the serialization is the same.

See the linked issue for more details.

from eos-go.