how to multsign

[CodeLion66]

permissionId

I didn't see how to sign more signatures and get in touch with you further?

[CodeLion66]

I hope to get a reply as soon as possible

[fbsobreira]

you just need to sign the same hash and append them all in signature slice... example:

rawData, _ := proto.Marshal(tx.GetRawData())
h256h := sha256.New()
h256h.Write(rawData)
hash := h256h.Sum(nil)

signature1, err := crypto.Sign(hash, privateKey1)
signature2, err := crypto.Sign(hash, privateKey2)
signature3, err := crypto.Sign(hash, privateKey3)
tx.Signature = append(tx.Signature, signature1)
tx.Signature = append(tx.Signature, signature2)
tx.Signature = append(tx.Signature, signature3)

result, err := c.Broadcast(tx)

[xellDart]

I try to sign transaction using:

`
pKey, err := crypto.HexToECDSA(*wallet.Private)
if err != nil {
return nil, err
}

for range contractList {
	signature, err := crypto.Sign(hash, pKey)

	if err != nil {
		return nil, err
	}

	tx.Transaction.Signature = append(tx.Transaction.Signature, signature)
}

result, err := trx.Client.Broadcast(tx.Transaction)

`

But I always get:
"result error: Validate signature error: 9ea75e9c4248e28e88e890111ab57aad3e4e64e58e8c9c931dbb92329e78eb7e048c303a9461cefe67b0576bfd4f96ab3573879bd3dd6ca17d41e9cf89ff510901 is signed by TEjz16wGkzu7LDX8D7VscezX25NZYSHhDa but it is not contained of permission."

[ming871]

I try to sign transaction using:

` pKey, err := crypto.HexToECDSA(*wallet.Private) if err != nil { return nil, err }

for range contractList {
	signature, err := crypto.Sign(hash, pKey)

	if err != nil {
		return nil, err
	}

	tx.Transaction.Signature = append(tx.Transaction.Signature, signature)
}

result, err := trx.Client.Broadcast(tx.Transaction)

`

But I always get: "result error: Validate signature error: 9ea75e9c4248e28e88e890111ab57aad3e4e64e58e8c9c931dbb92329e78eb7e048c303a9461cefe67b0576bfd4f96ab3573879bd3dd6ca17d41e9cf89ff510901 is signed by TEjz16wGkzu7LDX8D7VscezX25NZYSHhDa but it is not contained of permission."

I have the same error, May be there is no "permissionId" when ”CreateTransaction“.

[kangbingbing]

I also encountered this problem. I cannot use multi-signature to operate proxy energy permissions. If there is a solution, please contact me and I will pay you.