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On this page
  • getEthereumSignedTransaction
  • Parameters
  • Returns
  • Requirements
  • getTokenSignedTransaction
  • Parameters
  • Returns
  • Requirements
  • getMessageSign
  • Parameters
  • Returns

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  1. D'CENT BIOMETRIC WALLET FOR Mobile
  2. dcent-biometric-sdk-ios

Ethereum & EVM compatible

getEthereumSignedTransaction

The D'CENT Android SDK provides functions for signing transaction of coins.

This function for :

  • .ETHEREUM - ethereum (ETH)

  • .ETH_CLASSIC - ethereum classic (ETC)

  • .ETH_KOVAN - ethereum kovan (ETHt)

  • .ETH_ROPSTEN - ethereum ropsten (ETHt)

  • .ETH_GOERLI - ethereum goerli (ETHt)

  • .ETH_RINKEBY - ethereum rinkeby (ETHt)

  • .FLR_COSTON - flare network coston (CFLR)

  • .RSK - rsk smart bitcoin (RBTC)

  • .RSK_TESTNET - rsk smart bitcoin testnet (RBTCt)

  • .XDC - xcd network (XDC)

  • .XDC_APOTHEM - xdc apothem (XDCt)

  • .BSC - binance smart chain (BNB)

  • .BSC_TESTNET - binance smart chain testnet (BNBt)

  • .POLYGON - polygon (MATIC)

  • .POLYGON_TESTNET - polygon testnet (MATICt)

  • .CHAN - other evm networks

Parameters

  • coinType: ethereum networks coin type

class EthereumTransaction

Name
Type
Description

addressPath

String

sign key path for ethereum transaction

nonce

String

account nonce for ethereum transaction

to

String

recipient's address of ethereum transaction

amount

String

amount of ether to be sent. ( wei unit value )

gasLimit

String

gas limit value of ethereum transaction

gasPrice

String

gas price for ethereum transaction

data

String

transaction data of ethereum transaction

chainId

String

chain id

symbol

String

symbol for ethereum transaction symbol value used for evm chain (.CHAN)

txType

String

(optional)Type of ethereum transaction

maxPriorityFpg

String

(optional)max_priority_fpg of ethereum transaction

maxFeePerGas

String

(optional)max_fee_per gas of ethereum transaction

accessList

String

(optional)access_list of ethereum transaction

Returns

  • result: (Bool) true if successful, false if error occurred

  • txData: signed transaction

Requirements

Example

let ethereumTransaction : EthereumTransaction = EthereumTransaction( addressPath:"", nonce:"", to:"", amount:"", gasLimit:"", gasPrice:"", data:"", chainId:"0" )
  
// test data
ethereumTransaction.addressPath = "m/44'/60'/0'/0/0"
ethereumTransaction.nonce = "14"
ethereumTransaction.to = "0xe5c23dAa6480e45141647E5AeB321832150a28D4"
ethereumTransaction.amount = "500000000000000"
ethereumTransaction.gasLimit = "21000"
ethereumTransaction.gasPrice = "6000000000"
ethereumTransaction.data = "0x"
ethereumTransaction.chainId = "1"
  
DcentMgr.getEthereumSignedTransaction(coinType:.ETHEREUM , ethereumTransaction:ethereumTransaction){ (result, txData) in
    print("Ethereum Transaction closure")
    if result == false {
        print("FAIL !!!")
    }else{
        print(txData)
    }
}

getTokenSignedTransaction

This fuction for :

  • .ERC20 - ethereum erc20 token

  • .ETC_ERC20 - ethereum classic erc20 token

  • .ERC20_KOVAN - ethereum kovan erc20 token(ETH

  • .ERC20_ROPSTEN - ethereum ropsten erc20 token

  • .ERC20_GOERLI - ethereum goerli erc20 token

  • .ERC20_RINKEBY - ethereum rinkeby erc20 token

  • .FLR20_COSTON - flare network coston token

  • .RRC20 - rsk smart bitcoin rrc20 token

  • .RRC20_TESTNET - rsk smart bitcoin testnet rrc20 token

  • .XRC20 - xcd network xrc20 token

  • .XRC20_APOTHEM - xdc apothem xrc20 token

  • .BEP20 - binance smart chain bep20 token

  • .BEP20_TESTNET - binance smart chain testnet bep20 token

  • .POLYGON_ERC20 - polygon erc20 token

  • .POLY_ERC20_TEST - polygon testnet erc20 token

  • .CH20 - other evm networks erc20 token

Parameters

  • coinType: erc20 type

class TokenTransaction

Name
Type
Description

addressPath

String

sign key path for ethereum transaction

nonce

String

account nonce for ethereum transaction

to

String

recipient's address of ethereum transaction

amount

String

amount of ether to be sent. ( wei unit value )

gasLimit

String

gas limit value of ethereum transaction

gasPrice

String

gas price for ethereum transaction

data

String

transaction data of ERC20 transaction

chainId

String

chain id

symbol

String

symbol of fee account for ERC20 transaction

tokenName

String

token name of contract for ERC20 transaction

contractAddress

String

address of contract for ERC20 transaction

decimals

String

decimals of contract for ERC20 transaction

tokenSymbol

String

symbol of contract for ERC20 transaction

Returns

  • result: (Bool) true if successful, false if error occurred

  • txData: signed transaction

Requirements

Example

let erc20Transaction : TokenTransaction = TokenTransaction(addressPath: "", nonce: "", to: "", amount: "", gasLimit: "", gasPrice: "", data: "", tokenName: "", contractAddress: "", decimals: "", tokenSymbol: "")
  
// test data
erc20Transaction.addressPath = "m/44'/60'/0'/0/0"
erc20Transaction.nonce = "14"
erc20Transaction.to = "0xe5c23dAa6480e45141647E5AeB321832150a28D4"
erc20Transaction.amount = "60000000000000000"
erc20Transaction.gasLimit = "70000"
erc20Transaction.gasPrice = "3000000000"
erc20Transaction.data = ""
erc20Transaction.chainId = "1"
erc20Transaction.tokenName = "OmiseGO"
erc20Transaction.contractAddress = "0xd26114cd6ee289accf82350c8d8487fedb8a0c07"
erc20Transaction.decimals = "18"
erc20Transaction.tokenSymbol = "OMG"
  
DDcentMgr.getTokenSignedTransaction(coinType:.ERC20, tokenTransaction:erc20Transaction){ (result, txData) in
    print("ERC20 Token Transaction closure")
    if result == false {
        print("FAIL !!!")
    }else{
        print(txData)
    }
}

getMessageSign

Get the sign value of "EVM" message sign(personal_sign & signTypedData).

This fuction for :

  • .ETHEREUM - ethereum (ETH)

  • .ETH_CLASSIC - ethereum classic (ETC). ??

  • .ETH_KOVAN - ethereum kovan (ETHt)

  • .ETH_ROPSTEN - ethereum ropsten (ETHt)

  • .ETH_GOERLI - ethereum goerli (ETHt)

  • .ETH_RINKEBY - ethereum rinkeby (ETHt)

  • .FLR_COSTON - flare network coston (CFLR) ??

  • .RSK - rsk smart bitcoin (RBTC)

  • .RSK_TESTNET - rsk smart bitcoin testnet (RBTCt)

  • .XDC - xcd network (XDC)

  • .XDC_APOTHEM - xdc apothem (XDCt)

  • .BSC - binance smart chain (BNB)

  • .BSC_TESTNET - binance smart chain testnet (BNBt)

  • .POLYGON - polygon (MATIC)

  • .POLYGON_TESTNET - polygon testnet (MATICt)

  • .CHAN - other evm networks

  • .KLAYTN - klaytn mainnet (KLAY)

  • .KLAYTN_TESTNET - klaytn baobab (KLAYt)

Parameters

  • coinType: EVM coin type

  • isFull: (Bool) true for personal sign or the_sign of EVM / false for signTypedDatt(EIP-721) of EVM

class MessageSign

Name
Type
Description

message

String

message for sigining

key

String

sign key path for evm message sign

Returns

  • result: (Bool) true if successful, false if error occurred

  • addr: the address used to sign the data

  • sign: signed data

Example

let messageSign : MessageSign = MessageSign(message: "sign TEST!!", key: "m/44'/60'/0'/0/0")
DcentMgr.getMessgaeSign(coin: .ETHEREUM, messageSign: messageSign, isFull: false) { (result, addr, sign) in
    if result == false {
        print("FAIL !!!")
    }else{
        print(addr)
	print(sign)
    }
}
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Last updated 1 year ago

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ethereumTransaction: ()ethereum transaction parameter

Refer to "" to determine which D'CENT Biometric Wallet versions are supported on each network.

tokenTransaction: ()erc20 token transaction parameter

Refer to "" to determine which D'CENT Biometric Wallet versions are supported on each network.

messageSign: ()evm message sign data parameter

D`CENT Firmware Update History
D`CENT Firmware Update History
EthereumTransation
TokenTransation
MessageSign