Bitcoin SegWit vanity address generator

This is a simple Bitcoin SegWit vanity address generator.

Inspired by the vanity address miner for the P2PKH non-SegWit addresses from the book "Mastering Bitcoin" by Andreas Antonopoulos. I put this code under public domain, you can do whatever you want with it.

For building you will need C++11 compatible compiler, CMake, libbitcoin and libsodium.

$ cmake .
$ make VERBOSE=1

Usage:

Usage: segvan [options] pattern
Options:
        -d      Enable debug output
        -i      Case insensitive matching
        -t num  Number of CPU threads to use (default 1)

Example:

$ time ./segvan 3Kids
Found vanity address! 3KidsZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ
Private key: KPKPKPKPKPKPKPKPKPKPKPKPKPKPKPKPKPKPKPKPKPKPKPKPKPKP

real    47m28.866s
user    44m58.046s
sys     2m30.354s

Then use Bitcoin Core 0.15.x console:

> importprivkey KPKPKPKPKPKPKPKPKPKPKPKPKPKPKPKPKPKPKPKPKPKPKPKPKPKP "Vanity test" false
(null)
> getaddressesbyaccount "Vanity test"
[
  "1ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ"
]
> addwitnessaddress 1ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ
3KidsZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ