coin_evm library

Classes

AccessListEntry
EIP-2930 access list entry.
Addr
Authorization
EIP-7702 authorization tuple. Authorizes a contract's code to execute on behalf of an EOA.
Bech32
BlobData
EIP-4844 blob data. 128 KiB chunks carried by type-3 transactions. KZG commitment/proof must be supplied externally (via a KZG library or precomputed values). computeVersionedHash derives the hash locally.
ERC-4337 bundler JSON-RPC client.
CacheMiddleware
CallBuilder
Chain
ChainReader
ChainWriter
CodecGate
CollectibleToken
ERC-721 interface.
CryptoVault
CurveGate
Implementations may use pure Dart math or native FFI/WASM bindings.
DelegatedAccount
ERC-4337 smart contract account that builds and signs UserOperations.
Denomination
DeployedContract
DerivedKey
DerivedKeyMaterial
DerivedPublicKey
DerivedSecretKey
DigestGate
EcdsaSig
Ed25519Gate
Pluggable backend for Ed25519 curve operations (Monero, etc.). All inputs/outputs are byte arrays so native backends avoid BigInt conversion.
Envelope
EnvelopeSigner
EvmAddr
EvmChain
EvmChains
ExTx
FundingPlan<T>
FungibleToken
ERC-20 interface.
GasSponsor
ERC-4337 paymaster -- sponsors gas so users can transact without ETH.
HardwareKeyAgent
Hardware signing device (Ledger, Trezor, etc.). The private key never leaves the device.
HdAccount
An account node m/purpose'/coinType'/account' bound to a ChainParams and a DerivationScheme.
HdWallet
A hierarchical-deterministic wallet root.
InputSig
DER-encoded ECDSA sig + sighash byte.
InvokeBuilder
KeyAgent
Signing interface: in-memory, hardware, or remote.
KeyForge
LedgerAgent
LegacyAddr
LegacyInput
LegacySigHasher
Legacy sighash (pre-segwit).
Locking
LoggingMiddleware
MessageSig
Middleware
MiddlewareChain
Mnemonic
MultichainNames
ENSIP-9 multi-coin address resolution.
MultiSig
M-of-N multisig: OP_M <keys...> OP_N OP_CHECKMULTISIG
MultiToken
ERC-1155 interface.
NameRecords
ENS text records and contenthash resolution.
NameResolver
ENS name resolution and reverse lookup.
Op
OpCode
Outpoint
P2pkhAddr
P2pkhInput
scriptSig = sig, pubkey
P2shAddr
P2shMultisigInput
P2wpkhAddr
P2wpkhInput
witness = sig, pubkey
P2wshAddr
ParsedAbi
PayToPubKeyHash
P2PKH: OP_DUP OP_HASH160 <20> OP_EQUALVERIFY OP_CHECKSIG
PayToScriptHash
P2SH: OP_HASH160 <20> OP_EQUAL
PayToTaproot
P2TR: OP_1 <32>
PayToWitness
Generic witness program (version 0-16).
PayToWitnessPubKey
P2WPKH: OP_0 <20>
PayToWitnessScript
P2WSH: OP_0 <32>
PersonalSign
EIP-191 personal message signing. Prefixes with "\x19Ethereum Signed Message:\n<length>" before keccak256.
PublicKey
PushData
PushDataMatcher
Matches any push of a given size, for pattern matching against scripts.
RawInput
RawLocking
RecoverableEcdsaSig
RetryMiddleware
Rlp
Recursive Length Prefix encoding for EVM.
SchnorrInputSig
Schnorr sig: 64 bytes, or 65 with non-default sighash.
SchnorrSig
Script
ScriptOp
SecretKey
SecretKeyAgent
In-memory key agent backed by a SecretKey.
SegwitAddr
SigHasher
SigHashType
SimpleDelegatedAccount
Simple EOA-owned smart account reference implementation.
SolAddress
20 bytes, left-padded to 32.
SolArray
Fixed-size T[N] or dynamic T[].
SolBool
SolBytes
Dynamic bytes.
SolCodec
SolError
SolEvent
SolFixedBytes
Fixed-size bytes1 .. bytes32.
SolFunction
SolInt
SolParser
SolString
SolTuple
SolType
SolUint
TapBranch
TapLeaf
Taproot
TaprootAddr
Taproot address (bech32m, witness v1).
TaprootKeyInput
Key-path spend; witness = schnorr_sig.
TaprootScriptInput
Script-path spend; witness = ...stack, script, controlBlock.
TaprootSigHasher
BIP-341 taproot sighash.
TapTree
TokenAmount
TokenGasSponsor
ERC-20 paymaster -- lets users pay gas in tokens instead of ETH.
TrezorAgent
Tx
TxBody
Components of a transaction body (everything after the version word), shared by Tx.fromReader and ExTx.fromReader.
TxInput
TxOutput
TypedPayload
EIP-712 typed structured data hashing and signing.
UnknownWitnessAddr
For witness versions 2-16 (future soft forks).
UserIntent
ERC-4337 UserOperation struct.
VaultKeeper
Call initialize once before using any crypto operations. Defaults to pure Dart backends; register FFI backends with register or registerAsync before calling initialize.
VerifyingGasSponsor
Verifying paymaster that checks a signature from a trusted off-chain signer.
WireMeasure
Counts serialized size without allocating.
WireReader
WireWriter
WitnessInput
WitnessSigHasher
BIP-143 witness v0 sighash.

Enums

DerivationScheme
BIP standard derivation schemes, each mapping to a single address type.
EnvelopeKind

Functions

base58Decode(String encoded) → Uint8List
base58Encode(Uint8List payload) → String
bytesEqual(Uint8List a, Uint8List b) → bool
checkInt32(int i) → void
checkUint16(int i) → void
checkUint32(int i) → void
checkUint64(BigInt i) → void
checkUint8(int i) → void
compareBytes(Uint8List a, Uint8List b) → int
concatBytes(List<Uint8List> parts) → Uint8List
copyCheckBytes(Uint8List bytes, int length, [String name = 'bytes']) → Uint8List
generateSecureBytes(int n) → Uint8List
hash160(Uint8List data) → Uint8List
hexDecode(String hex) → Uint8List
Accepts optional "0x" prefix.
hexEncode(Uint8List bytes) → String
hmacSha256(Uint8List key, Uint8List data) → Uint8List
hmacSha512(Uint8List key, Uint8List data) → Uint8List
initCoin() → Future<void>
keccak256(Uint8List data) → Uint8List
ripemd160(Uint8List data) → Uint8List
sha256(Uint8List data) → Uint8List
sha256d(Uint8List data) → Uint8List
sha512(Uint8List data) → Uint8List
taggedHash(String tag, Uint8List data) → Uint8List
wifDecode(String wif, Chain chain) → (Uint8List, bool)
wifEncode(Uint8List privKey, Chain chain, {bool compressed = true}) → String