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Release v0.3.0

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This commit is contained in:
Manu Herrera
2020-11-09 10:05:29 -03:00
parent 4e9aa7a3c5
commit 8107c4478b
1265 changed files with 440488 additions and 107809 deletions
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vendor/github.com/ltcsuite/ltcd/chaincfg/params.go generated vendored Normal file
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// Copyright (c) 2014-2016 The btcsuite developers
// Use of this source code is governed by an ISC
// license that can be found in the LICENSE file.
package chaincfg
import (
"errors"
"math"
"math/big"
"strings"
"time"
"github.com/ltcsuite/ltcd/chaincfg/chainhash"
"github.com/ltcsuite/ltcd/wire"
)
// These variables are the chain proof-of-work limit parameters for each default
// network.
var (
// bigOne is 1 represented as a big.Int. It is defined here to avoid
// the overhead of creating it multiple times.
bigOne = big.NewInt(1)
// mainPowLimit is the highest proof of work value a Litecoin block can
// have for the main network.
mainPowLimit, _ = new(big.Int).SetString("0x0fffff000000000000000000000000000000000000000000000000000000", 0)
// regressionPowLimit is the highest proof of work value a Litecoin block
// can have for the regression test network. It is the value 2^255 - 1.
regressionPowLimit = new(big.Int).Sub(new(big.Int).Lsh(bigOne, 255), bigOne)
// testNet3PowLimit is the highest proof of work value a Litecoin block
// can have for the test network (version 3). It is the value
// 2^224 - 1.
testNet3PowLimit = new(big.Int).Sub(new(big.Int).Lsh(bigOne, 224), bigOne)
// testNet4PowLimit is the highest proof of work value a Litecoin block
// can have for the test network (version 4).
testNet4PowLimit, _ = new(big.Int).SetString("0x0fffff000000000000000000000000000000000000000000000000000000", 0)
// simNetPowLimit is the highest proof of work value a Litecoin block
// can have for the simulation test network. It is the value 2^255 - 1.
simNetPowLimit = new(big.Int).Sub(new(big.Int).Lsh(bigOne, 255), bigOne)
)
// Checkpoint identifies a known good point in the block chain. Using
// checkpoints allows a few optimizations for old blocks during initial download
// and also prevents forks from old blocks.
//
// Each checkpoint is selected based upon several factors. See the
// documentation for blockchain.IsCheckpointCandidate for details on the
// selection criteria.
type Checkpoint struct {
Height int32
Hash *chainhash.Hash
}
// DNSSeed identifies a DNS seed.
type DNSSeed struct {
// Host defines the hostname of the seed.
Host string
// HasFiltering defines whether the seed supports filtering
// by service flags (wire.ServiceFlag).
HasFiltering bool
}
// ConsensusDeployment defines details related to a specific consensus rule
// change that is voted in. This is part of BIP0009.
type ConsensusDeployment struct {
// BitNumber defines the specific bit number within the block version
// this particular soft-fork deployment refers to.
BitNumber uint8
// StartTime is the median block time after which voting on the
// deployment starts.
StartTime uint64
// ExpireTime is the median block time after which the attempted
// deployment expires.
ExpireTime uint64
}
// Constants that define the deployment offset in the deployments field of the
// parameters for each deployment. This is useful to be able to get the details
// of a specific deployment by name.
const (
// DeploymentTestDummy defines the rule change deployment ID for testing
// purposes.
DeploymentTestDummy = iota
// DeploymentCSV defines the rule change deployment ID for the CSV
// soft-fork package. The CSV package includes the deployment of BIPS
// 68, 112, and 113.
DeploymentCSV
// DeploymentSegwit defines the rule change deployment ID for the
// Segregated Witness (segwit) soft-fork package. The segwit package
// includes the deployment of BIPS 141, 142, 144, 145, 147 and 173.
DeploymentSegwit
// NOTE: DefinedDeployments must always come last since it is used to
// determine how many defined deployments there currently are.
// DefinedDeployments is the number of currently defined deployments.
DefinedDeployments
)
// Params defines a Litecoin network by its parameters. These parameters may be
// used by Litecoin applications to differentiate networks as well as addresses
// and keys for one network from those intended for use on another network.
type Params struct {
// Name defines a human-readable identifier for the network.
Name string
// Net defines the magic bytes used to identify the network.
Net wire.BitcoinNet
// DefaultPort defines the default peer-to-peer port for the network.
DefaultPort string
// DNSSeeds defines a list of DNS seeds for the network that are used
// as one method to discover peers.
DNSSeeds []DNSSeed
// GenesisBlock defines the first block of the chain.
GenesisBlock *wire.MsgBlock
// GenesisHash is the starting block hash.
GenesisHash *chainhash.Hash
// PowLimit defines the highest allowed proof of work value for a block
// as a uint256.
PowLimit *big.Int
// PowLimitBits defines the highest allowed proof of work value for a
// block in compact form.
PowLimitBits uint32
// These fields define the block heights at which the specified softfork
// BIP became active.
BIP0034Height int32
BIP0065Height int32
BIP0066Height int32
// CoinbaseMaturity is the number of blocks required before newly mined
// coins (coinbase transactions) can be spent.
CoinbaseMaturity uint16
// SubsidyReductionInterval is the interval of blocks before the subsidy
// is reduced.
SubsidyReductionInterval int32
// TargetTimespan is the desired amount of time that should elapse
// before the block difficulty requirement is examined to determine how
// it should be changed in order to maintain the desired block
// generation rate.
TargetTimespan time.Duration
// TargetTimePerBlock is the desired amount of time to generate each
// block.
TargetTimePerBlock time.Duration
// RetargetAdjustmentFactor is the adjustment factor used to limit
// the minimum and maximum amount of adjustment that can occur between
// difficulty retargets.
RetargetAdjustmentFactor int64
// ReduceMinDifficulty defines whether the network should reduce the
// minimum required difficulty after a long enough period of time has
// passed without finding a block. This is really only useful for test
// networks and should not be set on a main network.
ReduceMinDifficulty bool
// MinDiffReductionTime is the amount of time after which the minimum
// required difficulty should be reduced when a block hasn't been found.
//
// NOTE: This only applies if ReduceMinDifficulty is true.
MinDiffReductionTime time.Duration
// GenerateSupported specifies whether or not CPU mining is allowed.
GenerateSupported bool
// Checkpoints ordered from oldest to newest.
Checkpoints []Checkpoint
// These fields are related to voting on consensus rule changes as
// defined by BIP0009.
//
// RuleChangeActivationThreshold is the number of blocks in a threshold
// state retarget window for which a positive vote for a rule change
// must be cast in order to lock in a rule change. It should typically
// be 95% for the main network and 75% for test networks.
//
// MinerConfirmationWindow is the number of blocks in each threshold
// state retarget window.
//
// Deployments define the specific consensus rule changes to be voted
// on.
RuleChangeActivationThreshold uint32
MinerConfirmationWindow uint32
Deployments [DefinedDeployments]ConsensusDeployment
// Mempool parameters
RelayNonStdTxs bool
// Human-readable part for Bech32 encoded segwit addresses, as defined
// in BIP 173.
Bech32HRPSegwit string
// Address encoding magics
PubKeyHashAddrID byte // First byte of a P2PKH address
ScriptHashAddrID byte // First byte of a P2SH address
PrivateKeyID byte // First byte of a WIF private key
WitnessPubKeyHashAddrID byte // First byte of a P2WPKH address
WitnessScriptHashAddrID byte // First byte of a P2WSH address
// BIP32 hierarchical deterministic extended key magics
HDPrivateKeyID [4]byte
HDPublicKeyID [4]byte
// BIP44 coin type used in the hierarchical deterministic path for
// address generation.
HDCoinType uint32
}
// MainNetParams defines the network parameters for the main Litecoin network.
var MainNetParams = Params{
Name: "mainnet",
Net: wire.MainNet,
DefaultPort: "9333",
DNSSeeds: []DNSSeed{
{"seed-a.litecoin.loshan.co.uk", true},
{"dnsseed.thrasher.io", true},
{"dnsseed.litecointools.com", false},
{"dnsseed.litecoinpool.org", false},
{"dnsseed.koin-project.com", false},
},
// Chain parameters
GenesisBlock: &genesisBlock,
GenesisHash: &genesisHash,
PowLimit: mainPowLimit,
PowLimitBits: 504365055,
BIP0034Height: 710000,
BIP0065Height: 918684,
BIP0066Height: 811879,
CoinbaseMaturity: 100,
SubsidyReductionInterval: 840000,
TargetTimespan: (time.Hour * 24 * 3) + (time.Hour * 12), // 3.5 days
TargetTimePerBlock: (time.Minute * 2) + (time.Second * 30), // 2.5 minutes
RetargetAdjustmentFactor: 4, // 25% less, 400% more
ReduceMinDifficulty: false,
MinDiffReductionTime: 0,
GenerateSupported: false,
// Checkpoints ordered from oldest to newest.
Checkpoints: []Checkpoint{
{1500, newHashFromStr("841a2965955dd288cfa707a755d05a54e45f8bd476835ec9af4402a2b59a2967")},
{4032, newHashFromStr("9ce90e427198fc0ef05e5905ce3503725b80e26afd35a987965fd7e3d9cf0846")},
{8064, newHashFromStr("eb984353fc5190f210651f150c40b8a4bab9eeeff0b729fcb3987da694430d70")},
{16128, newHashFromStr("602edf1859b7f9a6af809f1d9b0e6cb66fdc1d4d9dcd7a4bec03e12a1ccd153d")},
{23420, newHashFromStr("d80fdf9ca81afd0bd2b2a90ac3a9fe547da58f2530ec874e978fce0b5101b507")},
{50000, newHashFromStr("69dc37eb029b68f075a5012dcc0419c127672adb4f3a32882b2b3e71d07a20a6")},
{80000, newHashFromStr("4fcb7c02f676a300503f49c764a89955a8f920b46a8cbecb4867182ecdb2e90a")},
{120000, newHashFromStr("bd9d26924f05f6daa7f0155f32828ec89e8e29cee9e7121b026a7a3552ac6131")},
{161500, newHashFromStr("dbe89880474f4bb4f75c227c77ba1cdc024991123b28b8418dbbf7798471ff43")},
{179620, newHashFromStr("2ad9c65c990ac00426d18e446e0fd7be2ffa69e9a7dcb28358a50b2b78b9f709")},
{240000, newHashFromStr("7140d1c4b4c2157ca217ee7636f24c9c73db39c4590c4e6eab2e3ea1555088aa")},
{383640, newHashFromStr("2b6809f094a9215bafc65eb3f110a35127a34be94b7d0590a096c3f126c6f364")},
{409004, newHashFromStr("487518d663d9f1fa08611d9395ad74d982b667fbdc0e77e9cf39b4f1355908a3")},
{456000, newHashFromStr("bf34f71cc6366cd487930d06be22f897e34ca6a40501ac7d401be32456372004")},
{638902, newHashFromStr("15238656e8ec63d28de29a8c75fcf3a5819afc953dcd9cc45cecc53baec74f38")},
{721000, newHashFromStr("198a7b4de1df9478e2463bd99d75b714eab235a2e63e741641dc8a759a9840e5")},
},
// Consensus rule change deployments.
//
// The miner confirmation window is defined as:
// target proof of work timespan / target proof of work spacing
RuleChangeActivationThreshold: 6048, // 75% of MinerConfirmationWindow
MinerConfirmationWindow: 8064, //
Deployments: [DefinedDeployments]ConsensusDeployment{
DeploymentTestDummy: {
BitNumber: 28,
StartTime: 1199145601, // January 1, 2008 UTC
ExpireTime: 1230767999, // December 31, 2008 UTC
},
DeploymentCSV: {
BitNumber: 0,
StartTime: 1485561600, // January 28, 2017 UTC
ExpireTime: 1517356801, // January 31st, 2018 UTC
},
DeploymentSegwit: {
BitNumber: 1,
StartTime: 1485561600, // January 28, 2017 UTC
ExpireTime: 1517356801, // January 31st, 2018 UTC.
},
},
// Mempool parameters
RelayNonStdTxs: false,
// Human-readable part for Bech32 encoded segwit addresses, as defined in
// BIP 173.
Bech32HRPSegwit: "ltc", // always ltc for main net
// Address encoding magics
PubKeyHashAddrID: 0x30, // starts with L
ScriptHashAddrID: 0x32, // starts with M
PrivateKeyID: 0xB0, // starts with 6 (uncompressed) or T (compressed)
WitnessPubKeyHashAddrID: 0x06, // starts with p2
WitnessScriptHashAddrID: 0x0A, // starts with 7Xh
// BIP32 hierarchical deterministic extended key magics
HDPrivateKeyID: [4]byte{0x04, 0x88, 0xad, 0xe4}, // starts with xprv
HDPublicKeyID: [4]byte{0x04, 0x88, 0xb2, 0x1e}, // starts with xpub
// BIP44 coin type used in the hierarchical deterministic path for
// address generation.
HDCoinType: 2,
}
// RegressionNetParams defines the network parameters for the regression test
// Litecoin network. Not to be confused with the test Litecoin network (version
// 3), this network is sometimes simply called "testnet".
var RegressionNetParams = Params{
Name: "regtest",
Net: wire.TestNet,
DefaultPort: "18444",
DNSSeeds: []DNSSeed{},
// Chain parameters
GenesisBlock: &regTestGenesisBlock,
GenesisHash: &regTestGenesisHash,
PowLimit: regressionPowLimit,
PowLimitBits: 0x207fffff,
CoinbaseMaturity: 100,
BIP0034Height: 100000000, // Not active - Permit ver 1 blocks
BIP0065Height: 1351, // Used by regression tests
BIP0066Height: 1251, // Used by regression tests
SubsidyReductionInterval: 150,
TargetTimespan: time.Hour * 24 * 14, // 14 days
TargetTimePerBlock: time.Minute * 10, // 10 minutes
RetargetAdjustmentFactor: 4, // 25% less, 400% more
ReduceMinDifficulty: true,
MinDiffReductionTime: time.Minute * 20, // TargetTimePerBlock * 2
GenerateSupported: true,
// Checkpoints ordered from oldest to newest.
Checkpoints: nil,
// Consensus rule change deployments.
//
// The miner confirmation window is defined as:
// target proof of work timespan / target proof of work spacing
RuleChangeActivationThreshold: 108, // 75% of MinerConfirmationWindow
MinerConfirmationWindow: 144,
Deployments: [DefinedDeployments]ConsensusDeployment{
DeploymentTestDummy: {
BitNumber: 28,
StartTime: 0, // Always available for vote
ExpireTime: math.MaxInt64, // Never expires
},
DeploymentCSV: {
BitNumber: 0,
StartTime: 0, // Always available for vote
ExpireTime: math.MaxInt64, // Never expires
},
DeploymentSegwit: {
BitNumber: 1,
StartTime: 0, // Always available for vote
ExpireTime: math.MaxInt64, // Never expires.
},
},
// Mempool parameters
RelayNonStdTxs: true,
// Human-readable part for Bech32 encoded segwit addresses, as defined in
// BIP 173.
Bech32HRPSegwit: "bcrt", // always bcrt for reg test net
// Address encoding magics
PubKeyHashAddrID: 0x6f, // starts with m or n
ScriptHashAddrID: 0xc4, // starts with 2
PrivateKeyID: 0xef, // starts with 9 (uncompressed) or c (compressed)
// BIP32 hierarchical deterministic extended key magics
HDPrivateKeyID: [4]byte{0x04, 0x35, 0x83, 0x94}, // starts with tprv
HDPublicKeyID: [4]byte{0x04, 0x35, 0x87, 0xcf}, // starts with tpub
// BIP44 coin type used in the hierarchical deterministic path for
// address generation.
HDCoinType: 1,
}
// TestNet4Params defines the network parameters for the test Litecoin network
// (version 4). Not to be confused with the regression test network, this
// network is sometimes simply called "testnet".
var TestNet4Params = Params{
Name: "testnet4",
Net: wire.TestNet4,
DefaultPort: "19335",
DNSSeeds: []DNSSeed{
{"testnet-seed.litecointools.com", false},
{"seed-b.litecoin.loshan.co.uk", true},
{"dnsseed-testnet.thrasher.io", true},
},
// Chain parameters
GenesisBlock: &testNet4GenesisBlock,
GenesisHash: &testNet4GenesisHash,
PowLimit: testNet4PowLimit,
PowLimitBits: 504365055,
BIP0034Height: 76,
BIP0065Height: 76,
BIP0066Height: 76,
CoinbaseMaturity: 100,
SubsidyReductionInterval: 840000,
TargetTimespan: (time.Hour * 24 * 3) + (time.Hour * 12), // 3.5 days
TargetTimePerBlock: (time.Minute * 2) + (time.Second * 30), // 2.5 minutes
RetargetAdjustmentFactor: 4, // 25% less, 400% more
ReduceMinDifficulty: true,
MinDiffReductionTime: time.Minute * 5, // TargetTimePerBlock * 2
GenerateSupported: false,
// Checkpoints ordered from oldest to newest.
Checkpoints: []Checkpoint{
{26115, newHashFromStr("817d5b509e91ab5e439652eee2f59271bbc7ba85021d720cdb6da6565b43c14f")},
{43928, newHashFromStr("7d86614c153f5ef6ad878483118ae523e248cd0dd0345330cb148e812493cbb4")},
{69296, newHashFromStr("66c2f58da3cfd282093b55eb09c1f5287d7a18801a8ff441830e67e8771010df")},
{99949, newHashFromStr("8dd471cb5aecf5ead91e7e4b1e932c79a0763060f8d93671b6801d115bfc6cde")},
{159256, newHashFromStr("ab5b0b9968842f5414804591119d6db829af606864b1959a25d6f5c114afb2b7")},
},
// Consensus rule change deployments.
//
// The miner confirmation window is defined as:
// target proof of work timespan / target proof of work spacing
RuleChangeActivationThreshold: 1512, // 75% of MinerConfirmationWindow
MinerConfirmationWindow: 2016,
Deployments: [DefinedDeployments]ConsensusDeployment{
DeploymentTestDummy: {
BitNumber: 28,
StartTime: 1199145601, // January 1, 2008 UTC
ExpireTime: 1230767999, // December 31, 2008 UTC
},
DeploymentCSV: {
BitNumber: 0,
StartTime: 1483228800, // January 1, 2017
ExpireTime: 1517356801, // January 31st, 2018
},
DeploymentSegwit: {
BitNumber: 1,
StartTime: 1483228800, // January 1, 2017
ExpireTime: 1517356801, // January 31st, 2018
},
},
// Mempool parameters
RelayNonStdTxs: true,
// Human-readable part for Bech32 encoded segwit addresses, as defined in
// BIP 173.
Bech32HRPSegwit: "tltc", // always tltc for test net
// Address encoding magics
PubKeyHashAddrID: 0x6f, // starts with m or n
ScriptHashAddrID: 0x3a, // starts with Q
WitnessPubKeyHashAddrID: 0x52, // starts with QW
WitnessScriptHashAddrID: 0x31, // starts with T7n
PrivateKeyID: 0xef, // starts with 9 (uncompressed) or c (compressed)
// BIP32 hierarchical deterministic extended key magics
HDPrivateKeyID: [4]byte{0x04, 0x35, 0x83, 0x94}, // starts with tprv
HDPublicKeyID: [4]byte{0x04, 0x35, 0x87, 0xcf}, // starts with tpub
// BIP44 coin type used in the hierarchical deterministic path for
// address generation.
HDCoinType: 1,
}
// SimNetParams defines the network parameters for the simulation test Litecoin
// network. This network is similar to the normal test network except it is
// intended for private use within a group of individuals doing simulation
// testing. The functionality is intended to differ in that the only nodes
// which are specifically specified are used to create the network rather than
// following normal discovery rules. This is important as otherwise it would
// just turn into another public testnet.
var SimNetParams = Params{
Name: "simnet",
Net: wire.SimNet,
DefaultPort: "18555",
DNSSeeds: []DNSSeed{}, // NOTE: There must NOT be any seeds.
// Chain parameters
GenesisBlock: &simNetGenesisBlock,
GenesisHash: &simNetGenesisHash,
PowLimit: simNetPowLimit,
PowLimitBits: 0x207fffff,
BIP0034Height: 0, // Always active on simnet
BIP0065Height: 0, // Always active on simnet
BIP0066Height: 0, // Always active on simnet
CoinbaseMaturity: 100,
SubsidyReductionInterval: 210000,
TargetTimespan: time.Hour * 24 * 14, // 14 days
TargetTimePerBlock: time.Minute * 10, // 10 minutes
RetargetAdjustmentFactor: 4, // 25% less, 400% more
ReduceMinDifficulty: true,
MinDiffReductionTime: time.Minute * 20, // TargetTimePerBlock * 2
GenerateSupported: true,
// Checkpoints ordered from oldest to newest.
Checkpoints: nil,
// Consensus rule change deployments.
//
// The miner confirmation window is defined as:
// target proof of work timespan / target proof of work spacing
RuleChangeActivationThreshold: 75, // 75% of MinerConfirmationWindow
MinerConfirmationWindow: 100,
Deployments: [DefinedDeployments]ConsensusDeployment{
DeploymentTestDummy: {
BitNumber: 28,
StartTime: 0, // Always available for vote
ExpireTime: math.MaxInt64, // Never expires
},
DeploymentCSV: {
BitNumber: 0,
StartTime: 0, // Always available for vote
ExpireTime: math.MaxInt64, // Never expires
},
DeploymentSegwit: {
BitNumber: 1,
StartTime: 0, // Always available for vote
ExpireTime: math.MaxInt64, // Never expires.
},
},
// Mempool parameters
RelayNonStdTxs: true,
// Human-readable part for Bech32 encoded segwit addresses, as defined in
// BIP 173.
Bech32HRPSegwit: "sltc", // always lsb for sim net
// Address encoding magics
PubKeyHashAddrID: 0x3f, // starts with S
ScriptHashAddrID: 0x7b, // starts with s
PrivateKeyID: 0x64, // starts with 4 (uncompressed) or F (compressed)
WitnessPubKeyHashAddrID: 0x19, // starts with Gg
WitnessScriptHashAddrID: 0x28, // starts with ?
// BIP32 hierarchical deterministic extended key magics
HDPrivateKeyID: [4]byte{0x04, 0x20, 0xb9, 0x00}, // starts with sprv
HDPublicKeyID: [4]byte{0x04, 0x20, 0xbd, 0x3a}, // starts with spub
// BIP44 coin type used in the hierarchical deterministic path for
// address generation.
HDCoinType: 115, // ASCII for s
}
var (
// ErrDuplicateNet describes an error where the parameters for a Litecoin
// network could not be set due to the network already being a standard
// network or previously-registered into this package.
ErrDuplicateNet = errors.New("duplicate Litecoin network")
// ErrUnknownHDKeyID describes an error where the provided id which
// is intended to identify the network for a hierarchical deterministic
// private extended key is not registered.
ErrUnknownHDKeyID = errors.New("unknown hd private extended key bytes")
)
var (
registeredNets = make(map[wire.BitcoinNet]struct{})
pubKeyHashAddrIDs = make(map[byte]struct{})
scriptHashAddrIDs = make(map[byte]struct{})
bech32SegwitPrefixes = make(map[string]struct{})
hdPrivToPubKeyIDs = make(map[[4]byte][]byte)
)
// String returns the hostname of the DNS seed in human-readable form.
func (d DNSSeed) String() string {
return d.Host
}
// Register registers the network parameters for a Litecoin network. This may
// error with ErrDuplicateNet if the network is already registered (either
// due to a previous Register call, or the network being one of the default
// networks).
//
// Network parameters should be registered into this package by a main package
// as early as possible. Then, library packages may lookup networks or network
// parameters based on inputs and work regardless of the network being standard
// or not.
func Register(params *Params) error {
if _, ok := registeredNets[params.Net]; ok {
return ErrDuplicateNet
}
registeredNets[params.Net] = struct{}{}
pubKeyHashAddrIDs[params.PubKeyHashAddrID] = struct{}{}
scriptHashAddrIDs[params.ScriptHashAddrID] = struct{}{}
hdPrivToPubKeyIDs[params.HDPrivateKeyID] = params.HDPublicKeyID[:]
// A valid Bech32 encoded segwit address always has as prefix the
// human-readable part for the given net followed by '1'.
bech32SegwitPrefixes[params.Bech32HRPSegwit+"1"] = struct{}{}
return nil
}
// mustRegister performs the same function as Register except it panics if there
// is an error. This should only be called from package init functions.
func mustRegister(params *Params) {
if err := Register(params); err != nil {
panic("failed to register network: " + err.Error())
}
}
// IsPubKeyHashAddrID returns whether the id is an identifier known to prefix a
// pay-to-pubkey-hash address on any default or registered network. This is
// used when decoding an address string into a specific address type. It is up
// to the caller to check both this and IsScriptHashAddrID and decide whether an
// address is a pubkey hash address, script hash address, neither, or
// undeterminable (if both return true).
func IsPubKeyHashAddrID(id byte) bool {
_, ok := pubKeyHashAddrIDs[id]
return ok
}
// IsScriptHashAddrID returns whether the id is an identifier known to prefix a
// pay-to-script-hash address on any default or registered network. This is
// used when decoding an address string into a specific address type. It is up
// to the caller to check both this and IsPubKeyHashAddrID and decide whether an
// address is a pubkey hash address, script hash address, neither, or
// undeterminable (if both return true).
func IsScriptHashAddrID(id byte) bool {
_, ok := scriptHashAddrIDs[id]
return ok
}
// IsBech32SegwitPrefix returns whether the prefix is a known prefix for segwit
// addresses on any default or registered network. This is used when decoding
// an address string into a specific address type.
func IsBech32SegwitPrefix(prefix string) bool {
prefix = strings.ToLower(prefix)
_, ok := bech32SegwitPrefixes[prefix]
return ok
}
// HDPrivateKeyToPublicKeyID accepts a private hierarchical deterministic
// extended key id and returns the associated public key id. When the provided
// id is not registered, the ErrUnknownHDKeyID error will be returned.
func HDPrivateKeyToPublicKeyID(id []byte) ([]byte, error) {
if len(id) != 4 {
return nil, ErrUnknownHDKeyID
}
var key [4]byte
copy(key[:], id)
pubBytes, ok := hdPrivToPubKeyIDs[key]
if !ok {
return nil, ErrUnknownHDKeyID
}
return pubBytes, nil
}
// newHashFromStr converts the passed big-endian hex string into a
// chainhash.Hash. It only differs from the one available in chainhash in that
// it panics on an error since it will only (and must only) be called with
// hard-coded, and therefore known good, hashes.
func newHashFromStr(hexStr string) *chainhash.Hash {
hash, err := chainhash.NewHashFromStr(hexStr)
if err != nil {
// Ordinarily I don't like panics in library code since it
// can take applications down without them having a chance to
// recover which is extremely annoying, however an exception is
// being made in this case because the only way this can panic
// is if there is an error in the hard-coded hashes. Thus it
// will only ever potentially panic on init and therefore is
// 100% predictable.
panic(err)
}
return hash
}
func init() {
// Register all default networks when the package is initialized.
mustRegister(&MainNetParams)
mustRegister(&TestNet4Params)
mustRegister(&RegressionNetParams)
mustRegister(&SimNetParams)
}