edoaltamura / btc-address-encoder

Cryptographic passphrase encoder for BTC protocol

This program can be used to recover mnemonic sentence for a target address having partially complete unordered word list.

Core functionality of this program is to

• Take an incomplete list of mnemonic words and fill it with all possible combinations of the remaining ones
• For each combination, loop over all permutations of the ordering
• For each permutation, check if the ordering yields a valid mnemonic based on the checksum
• If the mnemonic is valid, generate master private key and master public key
• Follow the BIP32 derivation path to obtain child private and public keys
• Calculate SegWit Pay-To-Witness-Public-Key-Hash Address and encode with BECH32
• Compare this address with the target address
• If it matches, print the mnemonic and end the program, else continue onto next permutation

Extended functionality

• Optional pasphrase can be added (currently configured to be one of the mnemonic words)

Setup

g++ -DNDEBUG -g2 -O2 -I . btcaddresscrack/btcaddresscollider.cxx -o ./btcaddresscollider btcaddresscrack/*.cpp ./cryptopp/libcryptopp.a
./btcaddresscollider

Dependencies

Cryptopp library

This needs to be pre-compiled after downloading and unzipping. Run $ make in the cryptopp directory and check that the libcryptopp.a file is generated.