crypto_utils library
By importing this library, you can access most of its functionalities, including： address generation, transaction assembly, address verification, etc.
Classes
- AbiUtil
- Function for encode eth function, support rawEncode, encodeSingle.
- Action
- near transaction action type, require Transfer or FunctionCall and enumValue.
- AddressUtils
- Provides series of address validation methods, integrated within checkAddressValid.
- ALEOChain
-
Provide default config for aleo, address type is AddressType.REGULAR, bip44 path is BTC_PATH.
Testnet and mainnet share the same setting. - ALPHChain
-
Provide default config for alph, address type is AddressType.BASE58, bip44 path is ALPH_PATH.
Testnet and mainnet share the same setting. Use mainnet to instantiate AlphCoin. - AlphCoin
-
Create a alph wallet using mnemonic or private key,
with a signature algorithm of EcdaSignature and an address type of
base58. - AlphTxData
- AlphTxData requires unsignedTx, txId, txId is the parameter to be signed.
- AlphTxSigner
- Require AlphTxData and wallet.
- APTOSChain
-
Provide default config for aptos, address type is AddressType.REGULAR, bip44 path is APTOS_PATH.
Testnet and mainnet share the same setting. Use mainnet to instantiate AptosCoin. - AptosCoin
- Create a aptos wallet using mnemonic or private key, with a signature algorithm of ED25519.
- AptosTxData
- AptosTxData requires to_sign_message, transaction, to_sign_message is the parameter to be signed.
- AptosTxSigner
- Require AptosTxData and wallet.
- ATOMChain
-
Provide default config for cosmos, address type is AddressType.BECH32, bip44 path is ATOM_PATH.
Testnet and mainnet share the same setting. Use mainnet to instantiate Cosmos. - BCHChain
-
Provide default config for bch, address type is AddressType.BTC, bip44 path is BCH_PATH.
Testnet and mainnet share the same setting. UseHDWalletto to instantiate wallet. - BELChain
-
Provide default config for bel, address type is AddressType.BTC.
Testnet and mainnet share the same setting. Use
HDWalletto to instantiate wallet. - BTCChain
-
Provide default config for btc, address type is AddressType.BTC, bip44 path is BTC_PATH.
Testnet and mainnet share the same setting. UseHDWalletto to instantiate wallet. - CKBChain
-
Provide default config for ckb, address type is AddressType.BECH32, bip44 path is CKB_PATH.
Testnet and mainnet share the same setting. Use mainnet to instantiate CkbCoin. - CkbCoin
- Create a ckb wallet using mnemonic or private key, with a signature algorithm of EcdaSignature and an address type of bech32
- CkbTxData
- CkbTxData requires version, hash, cellDeps, headerDeps, inputs, outputs, outputsData, witnesses getMessage is the parameter to be signed.
- CkbTxSigner
- Require CkbTxData and wallet.
- ConfChain
- To save config of chain, including mainnet wallet setting and testnet one. The name is a unique identification.
- Cosmos
- Create a cosmos wallet using mnemonic or private key, with a signature algorithm of EcdaSignature and an address type of bech32. Default create atom wallet.
- CosmosTxData
- CosmosTxData requires msgs, data, config, memo, fee msgs is the parameter to be signed.
- CosmosTxSigner
- Require CosmosTxData and wallet.
- Decoded
- DefaultChain
-
Provide default chain setting, address type is AddressType.NONE, bip44 path is BTC_PATH.
Testnet and mainnet share the same setting. - DOGEChain
-
Provide default config for doge, address type is AddressType.BTC, bip44 path is DOGE_PATH.
Testnet and mainnet share the same setting. UseHDWalletto to instantiate wallet. - DOTChain
-
Provide default config for dot, address type is AddressType.REGULAR, bip44 path is DOT_PATH.
Testnet and mainnet share the same setting. Use mainnet to instantiate DotCoin. - DotCoin
- Create a Dot wallet using mnemonic or private key, with a signature algorithm of SR25519 or ED25519.
- Eip1559TxData
- EIP712Domain
- For typed data EIP712 domain.
- EIP712TypedData
- For typed data V1
- ETHChain
-
Provide default config for eth, address type is AddressType.ETH, bip44 path is ETH_PATH.
Testnet and mainnet share the same setting. Use HDWallet to to instantiate wallet. - EthCoin
- Create a eth wallet using mnemonic or private key, with a signature algorithm of EcdaSignature and an address type of eth.
- EthTxData
- EthTxDataRaw
- EthTxSigner
- Require EthTxData and wallet.
- FILChain
-
Provide default config for filecoin, address type is AddressType.FIL, bip44 path is FILECOIN_PATH.
Testnet and mainnet share the same setting. Use mainnet to instantiate AlphCoin. - FileCoin
- Create a filecoin wallet using mnemonic or private key, with a signature algorithm of secp256k1.
- FilTransaction
- FilTxData
- FilTxData requires transaction, to_sign, to_sign is the parameter to be signed.
- FilTxSigner
- Require FilTxData and wallet.
- FunctionCall
- HNSChain
-
Provide default config for hns, address type is AddressType.BECH32, bip44 path is HNS_PATH.
Testnet and mainnet share the different setting. Use mainnet to instantiate HnsCoin. - HnsCoin
- Create a hns wallet using mnemonic or private key, with a signature algorithm of EcdaSignature and an address type of bech32
- ICPChain
-
Provide default config for icp, address type is AddressType.REGULAR, bip44 path is ICP_PATH.
Testnet and mainnet share the same setting. Use mainnet to instantiate IcpCoin. - IcpCoin
-
Create a icp wallet using mnemonic or private key,
with a signature algorithm of EcdaSignature and an address type of
base58. - IcpPem
- IcpTxData
- IcpTxData requires transaction, to_sign, to_sign is the parameter to be signed.
- IcpTxSigner
- Require IcpTxData and wallet.
- Input
- KASChain
-
Provide default config for kaspa, address type is AddressType.KAS, bip44 path is KAS_PATH.
Testnet and mainnet share the same setting. Use mainnet to instantiate KasCoin. - KasCoin
- Create a kas wallet using mnemonic or private key, with a signature algorithm of EcdaSignature and an address type of bech32 Default create kas wallet.
- KasTxData
- KasTxData requires version, inputs, outputs, lockTime, subnetworkId, allowOrphan inputs is the parameter to be signed.
- KasTxSigner
- Require KasTxData and wallet.
- KAVAChain
-
Provide default config for kava, address type is AddressType.BECH32, bip44 path is KAVA_PATH.
Testnet and mainnet share the same setting. Use mainnet to instantiate Cosmos. - KLSChain
-
Provide default config for karlsen, address type is AddressType.KAS, bip44 path is KLS_PATH.
Testnet and mainnet share the same setting. Use mainnet to instantiate KasCoin. - LegacyTxData
- LTCChain
-
Provide default config for ltc, address type is AddressType.BTC, bip44 path is LTC_PATH.
Testnet and mainnet share the same setting. UseHDWalletto to instantiate wallet. - NEARChain
-
Provide default config for near, address type is AddressType.REGULAR, bip44 path is NEAR_PATH.
Testnet and mainnet share the same setting. Use mainnet to instantiate NearCoin. - NearCoin
- Create a near wallet using mnemonic or private key, with a signature algorithm of ED25519.
- NearTransferType
- NearTxData
- NearTxData requires transaction, hash, hash is the parameter to be signed.
- NearTxSigner
- Require NearTxData and wallet.
- Output
- PreviousOutpoint
- Principal
- PublicKey
- SCChain
-
Provide default config for sc, address type is AddressType.REGULAR, bip44 path is BTC_PATH.
Testnet and mainnet share the same setting. Use mainnet to instantiate SiaCoin. - ScriptPublicKey
- SEIChain
-
Provide default config for sei, address type is AddressType.BECH32, bip44 path is ATOM_PATH.
Testnet and mainnet share the same setting. Use mainnet to instantiate Cosmos. - SiaCoin
- Create a sc wallet using mnemonic or private key, with a signature algorithm of ED25519.
- SOLChain
-
Provide default config for sol, address type is AddressType.REGULAR, bip44 path is SOL_PATH.
Testnet and mainnet share the same setting. Use mainnet to instantiate SolCoin. - SolCoin
- Create a sol wallet using mnemonic or private key, with a signature algorithm of ED25519.
- SolTxData
- SolTxData requires initTokenAddress, transaction, blockhash, lastValidBlockHeight, fee transaction is the parameter to be signed.
- SolTxDataV2
- Provide another way to get SolTxData
- SolTxSigner
- Require SolTxData and wallet.
- SolTxSignerV2
- Provide another way to sign sol message.
- SUIChain
-
Provide default config for sui, address type is AddressType.REGULAR, bip44 path is SUI_PATH.
Testnet and mainnet share the same setting. Use mainnet to instantiate SuiCoin. - SuiCoin
- Create a sui wallet using mnemonic or private key, with a signature algorithm of ED25519.
- TONChain
-
Provide default config for ton, address type is AddressType.REGULAR, bip44 path is SOL_PATH.
Testnet and mainnet share the same setting. - Transaction
- Transfer
- TRXChain
-
Provide default config for trx, address type is AddressType.REGULAR, bip44 path is TRX_PATH.
Testnet and mainnet share the same setting. - TxData
- Provide signature related basic data in transaction data. message and signature filled in during the signing process for subsequent unified verification; isSigned indicates whether the transaction has been signed. toJson provides a way to print transaction data, and toBroadcast assembles the parameters required for broadcasting.
- TxNetwork
- TxSigner
- wallet contains the necessary tools for signing, such as private key, public key and signature scheme. txData includes the fields required for sending transactions. After sign, txData will includes serialized message and signature. Then, broadcast TxData.toBroadcast.
- TypedDataField
- For typed data field, require name and type.
- TypedDataUtil
- Utils for typed data.
- TypedMessage
- For typed data V3, V4
- WalletSetting
- WalletType
- XrpAmount
- XrpAmountType
- XRPChain
-
Provide default config for xrp, address type is AddressType.REGULAR, bip44 path is XRP_PATH.
Testnet and mainnet share the same setting. Use mainnet to instantiate XrpCoin. - XrpCoin
- Create a xrp wallet using mnemonic or private key, with a signature algorithm of EcdaSignature.
- XrpTokenAmount
- XrpTransactionType
- XrpTxData
- XrpTxData requires account, transactionType, destination, amount, limitAmount, sequence, fee, lastLedgerSequence XrpTxData is the parameter to be signed.
- XrpTxSigner
- Require XrpTxData and wallet.
Enums
- AddressType
- Supported address types in this repository.
- DotScheme
- Select dot signature algorithm.
- EthTxType
- TypedDataVersion
- data version include V1, V3 and V4.
- Wallet
- Here is provided a suite of methods for the swift generation of WalletType. You can utilize the Wallet enumerated to generate the corresponding wallets, either through a mnemonic or a privateKey.
Constants
- ALPH_ADDRESS_REG → const String
-
ALPH_ADDRESS_REG:
^[1-9A-HJ-NP-Za-km-z]+$ - ALPH_PATH → const String
- ALPH_PATH: m/44'/1234'/0'/0/0
- APTOS_ADDRESS_REG → const String
-
APTOS_ADDRESS_REG:
^0x[a-fA-F0-9]{64}$ - APTOS_PATH → const String
- APTOS_PATH: "m/44'/637'/0'/0'/0'";
- ATOM_PATH → const String
- ATOM_PATH: "m/44'/118'/0'/0/0";
- ATOM_PREFIX → const String
- ATOM_PREFIX: cosmos;
- BCH_PATH → const String
- BCH_PATH: "m/44'/145'/0'/0/0";
- BITCOINCASH_PREFIX → const String
- BITCOINCASH_PREFIX: bitcoincash;
- BTC_ADDRESS_REG → const String
-
BTC_ADDRESS_REG:
^([a-km-zA-HJ-NP-Z1-9]{27,34})|(bitcoincash:[a-z0-9]{42})|(bc[a-zA-Z0-9]{25,87})$ - BTC_PATH → const String
- BTC_PATH: "m/44'/0'/0'/0/0";
- CKB_PATH → const String
- CKB_PATH: "m/44'/309'/0'/0/0";
- CKB_PREFIX → const String
- CKB_PREFIX: ckb;
- COMMON_REG → const String
-
COMMON_REG:
^[?()=#~+%@.:\-_a-zA-Z0-9]+$ - DOGE_PATH → const String
- DOGE_PATH: "m/44'/3'/0'/0/0";
- DOT_ADDRESS_REG → const String
-
DOT_ADDRESS_REG:
^[1|5][a-zA-Z0-9]{46,47}$ - DOT_PATH → const String
- DOT_PATH: "m/44'/354'/0'/0'/0'";
- ETH_ADDRESS_REG → const String
-
ETH_ADDRESS_REG:
^0x[a-fA-F0-9]{40}$ - ETH_PATH → const String
- ETH_PATH: "m/44'/60'/0'/0/0";
- FILECOIN_MAINNET_REG → const String
-
COMMON_REG:
^[?()=#~+%@.:\-_a-zA-Z0-9]+$ - FILECOIN_PATH → const String
- FILECOIN_PATH: "m/44'/461'/0'/0/0";
- FILECOIN_PREFIX_EVM → const String
- FILECOIN_PREFIX_EVM: f1;
- FILECOIN_PREFIX_MAINNET → const String
- FILECOIN_PREFIX_MAINNET: f1;
- FILECOIN_PREFIX_TESTNET → const String
- FILECOIN_PREFIX_TESTNET: f1;
- FILECOIN_TESTNET_REG → const String
- HNS_PATH → const String
- HNS_PATH: "m/44'/5353'/0'/0/0";
- HNS_PREFIX → const String
- HNS_PREFIX: hs;
- ICP_ADDRESS_REG → const String
-
ICP_ADDRESS_REG:
^[0-9a-fA-F]{64}$ - ICP_PATH → const String
- ICP_PATH : "m/44'/223'/0'/0/0";
- KAS_PATH → const String
- KAS_PATH: "m/44'/111111'/0'/0/0";
- KAS_PREFIX → const String
- KAS_PREFIX: kaspa;
- KAVA_PATH → const String
- KAVA_PATH: "m/44'/459'/0'/0/0";
- KAVA_PREFIX → const String
- KAVA_PREFIX: kava;
- KLS_PATH → const String
- KLS_PATH: "m/44'/121337'/0'";
- KLS_PREFIX → const String
- KLS_PREFIX: karlsen;
- LTC_PATH → const String
- LTC_PATH: "m/44'/2'/0'/0/0";
- NEAR_ADDRESS_REG → const String
-
NEAR_ADDRESS_REG:
^[0-9a-fA-F]{64}$ - NEAR_PATH → const String
- NEAR_PATH: "m/44'/397'/0'";
- SC_ADDRESS_REG → const String
-
SC_ADDRESS_REG:
^[a-z0-9]{76}$ - SEI_PREFIX → const String
- SEI_PREFIX: sei;
- SOL_ADDRESS_REG → const String
-
SOL_ADDRESS_REG:
^([1-9A-HJ-NP-Za-km-z]{44})$ - SOL_PATH → const String
- SOL_PATH: "m/44'/501'/0'/0'";
- SUI_ADDRESS_REG → const String
-
SUI_ADDRESS_REG:
^0x[0-9a-f]{64}$ - SUI_PATH → const String
- SUI_PATH: "m/44'/784'/0'/0'/0'";
- TRANSACTION_TYPE → const int
- TRX_ADDRESS_REG → const String
-
TRX_ADDRESS_REG:
^T[a-zA-Z0-9]{33} - TRX_PATH → const String
- TRX_PATH: "m/44'/195'/0'/0/0";
- XRP_ADDRESS_REG → const String
-
XRP_ADDRESS_REG:
^r(?![IOl])[0-9a-km-zA-HJ-NP-Z]{25,35}$ - XRP_PATH → const String
- XRP_PATH: "m/44'/144'/0'/0/0";
Properties
-
chainConfigs
→ List<
ConfChain> -
Chain config list supported in this repository.
final
-
KAS_DECODE
→ List<
int> -
Prefix of kas address.
final
-
KLS_DECODE
→ List<
int> -
Prefix of kls address.
final
- TRANSACTION_TYPE_BUFFER → Uint8List
-
final
Functions
-
checkBase58(
String address, {int length = 25}) → bool - Check base58 address with checksum, such as btc.
-
checkBech32(
String address, {String prefix = ''}) → bool - Check bech32 address with prefix, such as ckb.
-
checkRFC4648Base32(
String address, String prefix) → bool -
checkStandardBase32(
String address) → bool - Check base32 address, such as bitcoincash.
-
checksumToArray(
int checksum) → List< int> -
concatSig(
Uint8List r, Uint8List s, Uint8List v) → String -
concatSigCompact(
Uint8List r, Uint8List s) → String -
decode(
Uint8List input, [bool stream = false]) → dynamic -
encode(
dynamic input) → Uint8List -
encodeLength(
int length, int offset) → Uint8List -
getAddressType(
dynamic network) → AddressType - A method to get AddressType by network name(String).
-
getChainConfig(
String name) → ConfChain -
Obtain chain configuration through unique index
name. -
getCrc32(
Uint8List buf) → dynamic -
getMnemonicWallet(
String coin, String mnemonic) → Future< WalletType> -
getPrivateKeyWallet(
String coin, String privateKey) → WalletType -
getTypeName(
AddressType network) → String - AddressType enum to String
-
getWallet(
dynamic coin) → Wallet -
intToBuffer(
dynamic i) → Uint8List - Converts an int or BigInt to a Uint8List
-
intToHex(
dynamic i) → String - Converts a int into a hex String
-
padToEven(
String value) → String - Pads a String to have an even length
-
polymod(
List< int> data) → int -
processMessage(
dynamic message) → Uint8List - delete message prefix 0x9c
-
safeParseInt(
String v, [int base = 10]) → int -
signToCompact(
{required Uint8List message, required Uint8List privateKey}) → String -
signTypedData(
{required Uint8List privateKey, required String jsonData, required TypedDataVersion version}) → String - Sign typed data, support all versions
-
signTypedDataCompact(
{required Uint8List privateKey, required String jsonData, required TypedDataVersion version}) → String - Sign typed data compact, support all versions
-
supportCrypto(
) → List< String> -
toEthChecksumAddress(
String address) → String - Check eth address with checksum.