utils library
This module exports a selection of commonly used encryption algorithms and tools.
Classes
- AccountGenerator
- Generator special address such as: 0x0000************************, Support address type: evm Return SpecialAccount
- AddressUtils
- Provides series of address validation methods, integrated within checkAddressValid.
- Base32
- Class for encode and decode base32.
- Bech32
- Bech32 is a dead simple wrapper around a Human Readable Part (HRP) and a bunch of bytes.
- Bech32Codec
- Class for decode and encode bech32.
- Bech32Decoder
- This class converts a String to a Bech32 class instance.
- Bech32Encoder
- Bech32Validations
- Generic validations for Bech32 standard.
- Blake2b
- Class for getting blake2b hex.
- EcdaSignature
- Provide EcdaSignature sign and verify.
- ED25519
- Provide ED25519 sign and verify.
- HDLedger
- HDWallet
-
Provide various methods to generate a hd wallet.
Include
bip32,bip39,ED25519_HD_KEY. - NumberUtil
- Handle number methods.
- Schnorr
- Provide Schnorr sign and verify.
- SpecialAccount
- Include mnemonic and address
- SR25519
- Provide SR25519 sign and verify.
Enums
- AddressType
- Supported address types in this repository.
- Base32Type
- Enum of base32 encoding type.
Constants
Properties
- secp256k1 → ECDomainParameters
-
final
Functions
-
asciiStringToByteArray(
String text) → List< int> -
bnToU8a(
BigInt number) → Uint8List -
bufferToInt(
Uint8List buf) → int - Converts a Uint8List to a int.
-
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.
-
complete0xHex(
String hex) → String - Function for add 0x prefix.
-
convertBit(
Uint8List buff) → Uint8List -
convertBits(
dynamic data, int from, int to, {bool strictMode = false}) → List< int> -
createChecksum(
String hrp, List< int> data, {String encoding = 'bech32'}) → List<int> -
decodeBigInt(
List< int> bytes, {Endian endian = Endian.little}) → BigInt - Function for decode Uint8List to BigInt.
-
dynamicToHex(
dynamic value) → String - String, List, Uint8List to 0x
-
dynamicToString(
dynamic value) → String - String, List, Uint8List to String
-
dynamicToUint8List(
dynamic value) → Uint8List - String, List, Uint8List to Uint8List
-
encodeBigInt(
BigInt number, {Endian endian = Endian.little, int? bitLength}) → Uint8List - Function for encode BigInt to Uint8List.
-
encodeBigIntBe(
BigInt input, {int length = 0}) → Uint8List -
encodeInt(
int number, int length) → Uint8List - Function for encode int.
-
fromSigned(
Uint8List signedInt) → BigInt - Interprets a Uint8List as a signed integer and returns a BigInt. Assumes 256-bit numbers.
-
generateRandomString(
) → String - Function for retrieve a random hexadecimal string.
-
getAddressType(
dynamic network) → AddressType - A method to get AddressType by network name(String).
-
getKeccakDigest(
Uint8List hash, [int length = 256]) → Uint8List -
getRIPEMD160Digest(
Uint8List hash) → Uint8List -
getSha244Digest(
Uint8List hash) → Uint8List -
getSHA256Digest(
Uint8List hash) → Uint8List -
getSHA3Digest(
Uint8List hash, [int length = 256]) → Uint8List -
getTypeName(
AddressType network) → String - AddressType enum to String
-
hexToBigInt(
String hex) → BigInt - Function for convert a hex String to BigInt.
-
hexToBn(
dynamic value, {Endian endian = Endian.big, bool isNegative = false}) → BigInt - Function for convert a hex String to BigInt.
-
hexToBytes(
String hexStr) → List< int> - Function for hex String to List
-
intToBytes(
BigInt i) → Uint8List -
isHexPrefixed(
String str) → bool -
isHexString(
String value, {int length = 0}) → bool - Is the string a hex string.
-
phraseToInt(
String phrase) → BigInt -
setLength(
Uint8List msg, int length, {bool right = false}) → Uint8List -
setLengthLeft(
Uint8List msg, int length, {bool right = false}) → Uint8List -
Left Pads an Uint8List with leading zeros till it has
lengthbytes. Or it truncates the beginning if it exceeds. -
setLengthRight(
Uint8List msg, int length) → Uint8List -
Right Pads an Uint8List with leading zeros till it has
lengthbytes. Or it truncates the beginning if it exceeds. -
strip0xHex(
String hex) → String - Function for delete 0x prefix.
-
toBytesPadded(
BigInt value, int length) → List< int> -
toEthChecksumAddress(
String address) → String - Check eth address with checksum.
-
toUint5Array(
dynamic data) → List< int> -
toUnsigned(
BigInt unsignedInt) → Uint8List - Converts a BigInt to an unsigned integer and returns it as a Uint8List. Assumes 256-bit numbers.
-
toWholeHex(
String hexString) → String - Function for get whole hex.
-
u8aToBn(
Uint8List u8a, {Endian endian = Endian.little, bool isNegative = false}) → BigInt - Function for convert a Uint8List to BigInt.
-
verifyChecksum(
String hrp, List< int> dataIncludingChecksum, {String encoding = 'bech32'}) → bool -
zeros(
int bytes) → Uint8List - Returns a buffer filled with 0s.