Make a plan for Cardano Paribus token throws SwiftProtobuf.BinaryDecodingError error 2

[Balashov152]

To Reproduce
Steps to reproduce the behavior:
Xcode 15.2 / iOS
Token: https://cardanoscan.io/token/cc8d1b026353022abbfcc2e1e71159f9e308d9c6e905ac1db24c7fb650617269627573

Try to build CardanoSigingInput and update plan via input.plan = AnySigner.plan(input: input, coin: coinType)
I received the SwiftProtobuf.BinaryDecodingError error 2 with this this description

[libprotobuf ERROR */wallet-core/swift/protobuf/google/protobuf/wire_format_lite.cc:581] String field 'TW.Cardano.Proto.TokenAmount.asset_name' contains invalid UTF-8 data when serializing a protocol buffer. Use the 'bytes' type if you intend to send raw bytes. 
[libprotobuf ERROR */wallet-core/swift/protobuf/google/protobuf/wire_format_lite.cc:581] String field 'TW.Cardano.Proto.TokenAmount.asset_name' contains invalid UTF-8 data when serializing a protocol buffer. Use the 'bytes' type if you intend to send raw bytes. 
[libprotobuf ERROR */wallet-core/swift/protobuf/google/protobuf/wire_format_lite.cc:581] String field 'TW.Cardano.Proto.TokenAmount.asset_name' contains invalid UTF-8 data when serializing a protocol buffer. Use the 'bytes' type if you intend to send raw bytes. 

I filled in this way:

        CardanoTokenAmount.with {
            $0.policyID = asset.policyID // cc8d1b026353022abbfcc2e1e71159f9e308d9c6e905ac1db24c7fb6
            $0.assetNameHex = asset.assetNameHex // 50617269627573
            $0.amount = amount.serialize() // 01312d00
        }

Looks like the problem in the assetNameHex but I have no idea why ?
With other tokens everything is good.

[satoshiotomakan]

Hi @Balashov152, please make sure assetNameHex is a hexadecimal string, but not a byte array, eg

$0.assetNameHex = "50617269627573"

[Balashov152]

Hi @Balashov152, please make sure assetNameHex is a hexadecimal string, but not a byte array, eg

$0.assetNameHex = "50617269627573"

Yes, I tried to do it in that way. Just like raw data.
And also I tried to hardcode $0.assetName = "Paribus" instead of assetNameHex

Same problem :(

[satoshiotomakan]

@Balashov152 please provide a full example. From what I see, I don't have an idea what's wrong.
Please also refer to the examples in Swift:

wallet-core/swift/Tests/Blockchains/CardanoTests.swift

Line 117 in d136f01

$0.assetName = "SUNDAE"

wallet-core/swift/Tests/Blockchains/CardanoTests.swift

Line 160 in d136f01

$0.assetNameHex = "53554e444145"

[siblockchaina]

Hello, there is an update regarding this issue. The problem involves Cardano tokens whose names are implemented according to CIP-0067. The hex representation of these names does not encode correctly into a UTF-8 string.
The reproduction steps remain the same.

let token = CardanoTokenAmount.with {
            $0.policyID = "f0ff48bbb7bbe9d59a40f1ce90e9e9d0ff5002ec48f232b49ca0fb9a"
            $0.assetNameHex = "000de14064655f76696c6c69657273"
            $0.amount = Data(hexString: "04d3e8d9")!
}

[satoshiotomakan]

@siblockchaina @Balashov152 could you please provide the whole code from creating a SigningInput Protobuf message to using AnySigner.sign() function?
IMPORTANT leave privateKey empty to avoid funds loss.
It would be great if you could share a serialized SigningInput Protobuf message in hex as well, for example, like this:

let input = CardanoSigningInput.with {
  // TODO
}
let serializedInput = input.serializedData().hexString

[siblockchaina]

This is a complete example of a reproduced crash

        let toToken = CardanoTokenAmount.with {
            $0.policyID = "f0ff48bbb7bbe9d59a40f1ce90e9e9d0ff5002ec48f232b49ca0fb9a"
            $0.assetNameHex = "000de14064655f76696c6c69657273"
            $0.amount = Data(hexString: "01312D00")! // 20000000
        }
        var toTokenBundle = CardanoTokenBundle();
        toTokenBundle.token.append(toToken)
        
        // check min ADA amount, set it
        let inputTokenAmountSerialized = try toTokenBundle.serializedData()
        let minAmount = CardanoMinAdaAmount(tokenBundle: inputTokenAmountSerialized)
        
        var input = CardanoSigningInput.with {
            $0.transferMessage.toAddress = "addr1q92cmkgzv9h4e5q7mnrzsuxtgayvg4qr7y3gyx97ukmz3dfx7r9fu73vqn25377ke6r0xk97zw07dqr9y5myxlgadl2s0dgke5"
            $0.transferMessage.changeAddress = "addr1qxxe304qg9py8hyyqu8evfj4wln7dnms943wsugpdzzsxnkvvjljtzuwxvx0pnwelkcruy95ujkq3aw6rl0vvg32x35qc92xkq"
            $0.transferMessage.amount = minAmount
            $0.transferMessage.useMaxAmount = false
            $0.transferMessage.tokenAmount = toTokenBundle
            $0.ttl = 53333333
        }
        
        var utxo = CardanoTxInput.with {
            $0.outPoint.txHash = Data(hexString: "f074134aabbfb13b8aec7cf5465b1e5a862bde5cb88532cc7e64619179b3e767")!
            $0.outPoint.outputIndex = 2
            $0.address = "addr1q8043m5heeaydnvtmmkyuhe6qv5havvhsf0d26q3jygsspxlyfpyk6yqkw0yhtyvtr0flekj84u64az82cufmqn65zdsylzk23"
            $0.amount = 2000000
        }
        let token = CardanoTokenAmount.with {
            $0.policyID = "f0ff48bbb7bbe9d59a40f1ce90e9e9d0ff5002ec48f232b49ca0fb9a"
            $0.assetNameHex = "000de14064655f76696c6c69657273"
            $0.amount = Data(hexString: "04d3e8d9")!
        }

        utxo.tokenAmount.append(token)
        input.utxos.append(utxo)
        
        let serializedInput = try input.serializedData().hexString
        
        print(serializedInput)
        
        /*
       Serialized input hex:
       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
        */
        
        input.plan = AnySigner.plan(input: input, coin: .cardano) // Crash 
        
        if input.plan.error != .ok {
            //Do some
        }
        
        let output: CardanoSigningOutput = AnySigner.sign(input: input, coin: .cardano)

[satoshiotomakan]

Hi @siblockchaina, thank you for the code snippet. I found the problem. Looks like AnySigner.plan doesn't handle hexed assetName properly, and we don't even use it in our production environment, that's why we didn't know about it.
I'll make a fix this week as soon as I can