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# frozen_string_literal: true
require 'securerandom'
module Faker
class Blockchain
class Bitcoin < Base
class << self
# @private
PROTOCOL_VERSIONS = {
main: 0,
testnet: 111
}.freeze
##
# Produces a Bitcoin wallet address
#
# @return [String]
#
# @example
# Faker::Blockchain::Bitcoin.address
# #=> "147nDP22h3pHrLt2qykTH4txUwQh1ccaXp"
#
# @faker.version 1.9.2
def address
address_for(:main)
end
##
# Produces a Bitcoin testnet address
#
# @return [String]
#
# @example
# Faker::Blockchain::Bitcoin.testnet_address
# #=> "n4YjRyYD6V6zREpk6opqESDqD3KYnMdVEB"
#
# @faker.version 1.9.2
def testnet_address
address_for(:testnet)
end
protected
##
# Generates a random Bitcoin address for the given network
#
# @param network [Symbol] The name of network protocol to generate an address for
# @return [String] A Bitcoin address
def address_for(network)
version = PROTOCOL_VERSIONS.fetch(network)
packed = version.chr + Faker::Config.random.bytes(20)
checksum = OpenSSL::Digest::SHA256.digest(OpenSSL::Digest::SHA256.digest(packed))[0..3]
Faker::Base58.encode(packed + checksum)
end
end
end
end
end
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