flutter_ethers
library
Functions
bytesToHex (List <int bytes , {bool include0x = false , int ?forcePadLength , bool padToEvenLength = false → String
Converts the bytes given as a list of integers into a hexadecimal
representation.
bytesToInt (List <int bytes → BigInt
Converts the bytes from that list (big endian) to a (potentially signed)
BigInt.
bytesToUnsignedInt (Uint8List bytes → BigInt
compressPublicKey (Uint8List compressedPubKey → Uint8List
Given a byte array computes its compressed version and returns it as a byte array,
including the leading 02 or 03
decompressPublicKey (Uint8List compressedPubKey → Uint8List
Given a byte array computes its expanded version and returns it as a byte array,
including the leading 04
ecRecover (Uint8List messageHash , MsgSignature signatureData → Uint8List
Given an arbitrary message hash and an Ethereum message signature encoded in bytes, returns
the public key that was used to sign it.
https://github.com/web3j/web3j/blob/c0b7b9c2769a466215d416696021aa75127c2ff1/crypto/src/main/java/org/web3j/crypto/Sign.java#L241
generateNewPrivateKey (Random random → BigInt
Generates a new private key using the random instance provided. Please make
sure you're using a cryptographically secure generator.
getChecksumAddress (String address → String
hexToBytes (String hexStr → Uint8List
Converts the hexadecimal string, which can be prefixed with 0x, to a byte
sequence.
hexToDartInt (String hex → int
Converts the hexadecimal input and creates an int .
hexToInt (String hex → BigInt
Takes the hexadecimal input and creates a BigInt .
intToBytes (BigInt number → Uint8List
isHexString (String value , {int ?length → bool
isValidSignature (Uint8List messageHash , MsgSignature signatureData , Uint8List publicKey → bool
Given an arbitrary message hash, an Ethereum message signature encoded in bytes and
a public key encoded in bytes, confirms whether that public key was used to sign
the message or not.
keccak256 (Uint8List input → Uint8List
keccakAscii (String input → Uint8List
keccakUtf8 (String input → Uint8List
mnemonicToSeed (String mnemonic → Uint8List
padUint8ListTo32 (Uint8List data → Uint8List
privateKeyBytesToPublic (Uint8List privateKey → Uint8List
Generates a public key for the given private key using the ecdsa curve which
Ethereum uses.
privateKeyToCompressedPublic (BigInt privateKey → Uint8List
privateKeyToPublic (BigInt privateKey → Uint8List
Generates a public key for the given private key using the ecdsa curve which
Ethereum uses.
publicKeyToAddress (Uint8List publicKey → Uint8List
Constructs the Ethereum address associated with the given public key by
taking the lower 160 bits of the key's sha3 hash.
sign (Uint8List messageHash , Uint8List privateKey → MsgSignature
Signs the hashed data in messageHash using the given private key.
strip0x (String hex → String
If present, removes the 0x from the start of a hex-string.
uint8ListFromList (List <int data → Uint8List
unsignedIntToBytes (BigInt number → Uint8List
Exceptions / Errors
RPCError
Exception thrown when an the server returns an error code to an rpc request.
