czepluch/pysecp256k1

cffi wrapper for secp256k1

pysecp256k1's Issues

Port to Windows

I'm working on porting pyethapp to Windows. Can you help me with porting this package to Windows? Or help me finding a replacement?

performance test with random messages and keys

# very good results!
# (default) ~/dev/ethereum/pysecp256k1 (git)-[perftest] % python tests/test_secp256k1.py
# cffi took: 0.79secs / 79μs per op  / 12626 signs per sec
# cffi took: 1.28secs / 127μs per op  / 7821 recovers per sec

def rand32bytes():
    return ''.join(chr(random.randint(0, 255)) for i in range(32))


def perf(rounds=1000):
    privkeys = [rand32bytes() for i in range(rounds)]
    messages = [rand32bytes() for i in range(rounds)]
    # test sign
    signatures = []
    st = time.time()
    for priv, msg in zip(privkeys, messages):
        s = secp256k1_ecdsa_sign(msg, priv)
        signatures.append(s)
    elapsed = time.time() - st
    print 'cffi took: %.2fsecs / %dμs per op  / %d signs per sec' % \
        (elapsed, elapsed / rounds * 10**6, rounds / elapsed)

    # test recover
    pubs = []
    st = time.time()
    for sig, msg in zip(signatures, messages):
        p = secp256k1_ecdsa_recover(msg, sig)
        pubs.append(p)
    elapsed = time.time() - st
    print 'cffi took: %.2fsecs / %dμs per op  / %d recovers per sec' % \
        (elapsed, elapsed / rounds * 10**6, rounds / elapsed)

    # check
    for pub, privkey in zip(pubs, privkeys)[:100]:
        assert privtopub(privkey) == pub

if __name__ == '__main__':
    perf(10000)

pin last working commit of bitcoin lib to be downloaded

add secp256k1 dependencies

// Dependencies for c_secp256k1
$ sudo apt-get install libssl-dev
$ sudo apt-get install libffi-dev
$ sudo apt-get install libtool

make clean after uncomplete install gives error

make clean
rm -fr build/
rm -fr dist/
rm -fr .egg-info
rm -fr c_secp256k1/.so
rm -fr c_secp256k1/_c_secp256k1.py
rm -rf bitcoin-secp256k1-*
rm secp256k1.tar.gz
rm: secp256k1.tar.gz: No such file or directory
make: *** [clean-build] Error 1

include bitcoin secp256k1 as tarball instead of submodule

Git submodules are a pain in the ass to work with. Should just download a tarball instead.

add checkers for helpers