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License: MIT License
Deterministic Bitcoin Address Generator
License: MIT License
.
Hello,
I've taken the master public key from an electrum wallet and attempted to extract addresses from it:
irb(main):001:0> require 'bitcoin-addrgen'
=> true
irb(main):002:0> master_public_key = "xpub661MyMwAqRbcFTm4eJJRB4SvWGWGj8UC2Vajs7arYz4cJfDJS8nYi1pY51FDu65Z2JNFtqj4ZqxdceNueEobSkkNqGjn7aKXTv9yD6Yfycm"
=> "xpub661MyMwAqRbcFTm4eJJRB4SvWGWGj8UC2Vajs7arYz4cJfDJS8nYi1pY51FDu65Z2JNFtqj4ZqxdceNueEobSkkNqGjn7aKXTv9yD6Yfycm"
irb(main):003:0> first_ten_addresses = 10.times.collect do |address_index|
irb(main):004:1* BitcoinAddrgen.generate_public_address(master_public_key, address_index)
irb(main):005:1> end
Exception: Curve does not contain point
from /var/lib/gems/2.3.0/gems/bitcoin-addrgen-0.1.0/lib/bitcoin_addrgen/addrgen.rb:191:in `initialize'
from /var/lib/gems/2.3.0/gems/bitcoin-addrgen-0.1.0/lib/bitcoin_addrgen/addrgen.rb:311:in `new'
from /var/lib/gems/2.3.0/gems/bitcoin-addrgen-0.1.0/lib/bitcoin_addrgen/addrgen.rb:311:in `addr_from_mpk'
from /var/lib/gems/2.3.0/gems/bitcoin-addrgen-0.1.0/lib/bitcoin-addrgen.rb:7:in `generate_public_address'
from (irb):4:in `block in irb_binding'
from (irb):3:in `times'
from (irb):3:in `each'
from (irb):3:in `collect'
from (irb):3
from /usr/bin/irb:11:in `<main>'
irb(main):006:0>
if valid_bitcoin_address?(bitcoin_address)
GC.start
while (i <= limit and search_on)
search_on = ( bitcoin_address != BitcoinAddrgen.generate_public_address(mpk,i))
i += 1
end
if search_on
array = ['This address could not be verified.', 'Keep searching ? launch a new search to extend the search range.']
else
bitcoin_address = BitcoinAddrgen.generate_public_address(mpk,i-1)
array=['Address match : this bitcoin address is safe.', bitcoin_address]
end
else
array = ['This address is not a valid bitcoin address.', 'Please enter a valid bitcoin address.']
end
The script works fine locally but seems to exhaust memory when deployed to heroku:
Error R14 (Memory quota exceeded)
2013-08-14T14:02:02.535801+00:00 heroku[web.1]: Process running mem=1024M(100.0%)
2013-08-14T14:02:02.536011+00:00 heroku[web.1]: Error R14 (Memory quota exceeded)
2013-08-14T14:02:23.385206+00:00 heroku[web.1]: Process running mem=1024M(100.0%)
2013-08-14T14:02:23.385905+00:00 heroku[web.1]: Error R14 (Memory quota exceeded)
Most probably native gmp structures need to be explicitly freed.
Electrum generates Master Public Key not in hex format, but this code requires a hex. It would be great to have few words about how to transform electrum's mpk format to hex.
Hello is this for hierarchical or sequential deterministic wallet type?
*sorry I don't know where to ask.
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