Ethereum & EVM compatible

getEthereumSignedTransaction

The DCENT iOS SDK provides functions for signing transaction of coins.

This function is 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 - xdc 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
ethereumTransaction: (EthereumTransaction)ethereum transaction parameter

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

Refer to "D`CENT Firmware Update History" to determine which DCENT Biometric Wallet versions are supported on each network.

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 function is 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 - xdc 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
tokenTransaction: (TokenTransaction)erc20 token transaction parameter

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

Refer to "D`CENT Firmware Update History" to determine which DCENT Biometric Wallet versions are supported on each network.

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 function is 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 - xdc 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
messageSign: (MessageSign)evm message sign data parameter
isFull: (Bool) true for personal sign or eth_sign of EVM / false for signTypedData(EIP-712) of EVM

class MessageSign

Name	Type	Description
message	`String`	message for signing
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.getMessageSign(coin: .ETHEREUM, messageSign: messageSign, isFull: false) { (result, addr, sign) in
    if result == false {
        print("FAIL !!!")
    }else{
        print(addr)
	print(sign)
    }
}

getEthereumSignedTransaction​

Parameters​

class EthereumTransaction​

Returns​

Requirements​

getTokenSignedTransaction​

Parameters​

class TokenTransaction​

Returns​

Requirements​

getMessageSign​

Parameters​

class MessageSign​

Returns​

getEthereumSignedTransaction

Parameters

class EthereumTransaction

Returns

Requirements

getTokenSignedTransaction

Parameters

class TokenTransaction

Returns

Requirements

getMessageSign

Parameters

class MessageSign

Returns