This patch introduces the commands `mmgen-seedsplit` and `mmgen-seedjoin`.
The first creates shares one at a time, while the second joins them to
recover the original seed. By default, the default wallet is operated upon.
Shares are ordinary MMGen wallets and as such may be saved in any MMGen wallet
format, with one minor limitation: only one share in a given split may be in
hidden incognito format, and it must be the master share in the case of a
master share split.
For usage information and examples, see:
mmgen-seedsplit --help
mmgen-seedjoin --help
Relevant tests:
test/test.py -e seedsplit
ls -lrt test/tmp23/* # list the created files
test/objtest.py SeedSplitSpecifier
Related commits:
7311f474 - seed splitting: seed-level infrastructure
237567bc - master shares
- provided as an alternative to MMGen's native mnemonic format
# Run the BIP39 unit test:
$ test/unit_tests.py -v bip39
# Generate a random 128-bit BIP39 seed phrase:
$ mmgen-tool mn_rand128 fmt=bip39
# Export your default wallet to BIP39 format:
$ mmgen-walletconv -o bip39
...
BIP39 mnemonic data written to file '98831F3A[256].bip39'
# Generate ten addresses from the exported wallet:
$ mmgen-addrgen '98831F3A[256].bip39' 1-10
...
Addresses written to file '98831F3A[1-10].addrs'
# Generate ten addresses directly from your BIP39 seed phrase:
$ mmgen-addrgen -q -i bip39 1-10
...
Addresses written to file '98831F3A[1-10].addrs'
# Export subwallet 10L of your default wallet to BIP39 format:
$ mmgen-subwalletgen -o bip39 10L
...
BIP39 mnemonic data written to file 'A17F8E90[256].bip39'
- activated for Ethereum only, but framework exists for all coins
- both session caching and persistent caching in the wallet are supported
- network-destined RPC calls are never repeated in a given invocation
- RPC balance lookups can be suppressed entirely with --cached-balances
