80 lines
2.3 KiB
JavaScript
80 lines
2.3 KiB
JavaScript
// https://en.bitcoin.it/wiki/List_of_address_prefixes
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// Dogecoin BIP32 is a proposed standard: https://bitcointalk.org/index.php?topic=409731
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var networks = {
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bitcoin: {
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magicPrefix: '\x18Bitcoin Signed Message:\n',
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bip32: {
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public: 0x0488b21e,
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private: 0x0488ade4
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},
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pubKeyHash: 0x00,
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scriptHash: 0x05,
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wif: 0x80,
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dustThreshold: 546, // https://github.com/bitcoin/bitcoin/blob/v0.9.2/src/core.h#L151-L162
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feePerKb: 10000, // https://github.com/bitcoin/bitcoin/blob/v0.9.2/src/main.cpp#L53
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estimateFee: estimateFee('bitcoin')
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},
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dogecoin: {
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magicPrefix: '\x19Dogecoin Signed Message:\n',
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bip32: {
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public: 0x02facafd,
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private: 0x02fac398
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},
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pubKeyHash: 0x1e,
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scriptHash: 0x16,
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wif: 0x9e,
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dustThreshold: 0, // https://github.com/dogecoin/dogecoin/blob/v1.7.1/src/core.h#L155-L160
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dustSoftThreshold: 100000000, // https://github.com/dogecoin/dogecoin/blob/v1.7.1/src/main.h#L62
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feePerKb: 100000000, // https://github.com/dogecoin/dogecoin/blob/v1.7.1/src/main.cpp#L58
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estimateFee: estimateFee('dogecoin')
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},
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litecoin: {
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magicPrefix: '\x19Litecoin Signed Message:\n',
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bip32: {
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public: 0x019da462,
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private: 0x019d9cfe
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},
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pubKeyHash: 0x30,
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scriptHash: 0x05,
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wif: 0xb0,
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dustThreshold: 0, // https://github.com/litecoin-project/litecoin/blob/v0.8.7.2/src/main.cpp#L360-L365
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dustSoftThreshold: 100000, // https://github.com/litecoin-project/litecoin/blob/v0.8.7.2/src/main.h#L53
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feePerKb: 100000, // https://github.com/litecoin-project/litecoin/blob/v0.8.7.2/src/main.cpp#L56
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estimateFee: estimateFee('litecoin')
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},
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testnet: {
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magicPrefix: '\x18Bitcoin Signed Message:\n',
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bip32: {
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public: 0x043587cf,
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private: 0x04358394
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},
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pubKeyHash: 0x6f,
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scriptHash: 0xc4,
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wif: 0xef,
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dustThreshold: 546,
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feePerKb: 10000,
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estimateFee: estimateFee('testnet')
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}
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}
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function estimateFee(type) {
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return function(tx) {
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var network = networks[type]
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var baseFee = network.feePerKb
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var byteSize = tx.toBuffer().length
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var fee = baseFee * Math.ceil(byteSize / 1000)
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if (network.dustSoftThreshold == undefined) return fee
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tx.outs.forEach(function(e){
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if (e.value < network.dustSoftThreshold) {
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fee += baseFee
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}
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})
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return fee
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}
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}
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module.exports = networks
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