Build

eosiocpp -o eosio.unregd.wast eosio.unregd.cpp

Setup

./setup.sh

The setup step will install one contract (besides the defaults ones):

eosio.unregd (empty)

You need to have nodeos running.

Dependecies

pip install bitcoin --user pip install requests --user sudo apt-get install python-pysha3

Test

./test.sh

The test step will:

0. Generate a new ETH address with a random privkey.

1. Add the ETH address (eosio.unregd::add) and transfers a random amount of EOS to the eosio.unregd contract. This is to simulate a user that contributed to the ERC20 but didn't register their EOS pubkey.

2. Call eosio.unregd::regaccount with:

   • A message ("$block_num,$block_prefix" of the current LIB)
   • A signature for that message generated with the ETH privkey
   • The pubkey (uncompressed) derived from the ETH privkey
   • A desired EOS account name (random in this case)

3. The function will :

• Verify that the destination account name is valid
• Verify that the account does not exists
• Extract block prefix/num from message
• Verify that the current TX has the same block prefix/num as message
• Calculate ETH address based on publickey
• Verify that the ETH address exists in eosio.unregd contract
• Calculate hash(message) and verify ETH signature against publickey
• Split contribution balance into cpu/net/liquid
• Generate EOS key based on signature's pubkey
• Calculate the amount of EOS to purchase 8k of RAM
• Build authority with just one k1 key
• Issue to eosio.unregd the necesary EOS to buy 8K of RAM
• Create account with the same key for owner/active
• Buy RAM for the account (8k)
• Delegate bandwith
• Transfer remaining if any (liquid EOS)
• Remove information for the ETH address from the eosio.unregd DB