def mult_prod_str(
G, key, elements
): #not actually used in commit_str, but could be potentially useful. Be careful that it was potentially causing segmentation fault.
#G,key=ck
bvec = _FFI.new("EC_POINT * []", len(elements))
for i in xrange(len(elements)):
bvec[i] = key[i].pt
evec = _FFI.new("BIGNUM * []", len(elements))
for i in xrange(len(elements)):
evec[i] = Bn.from_decimal(str(elements[i])).bn
comm = EcPt(G)
_C.EC_POINTs_mul(G.ecg, comm.pt, _FFI.NULL, len(elements), bvec, evec,
_FFI.NULL)
return comm
def mult_prod(G, key, elements):
#G,key=ck
bvec = _FFI.new("EC_POINT * []", len(elements))
for i in xrange(len(elements)):
bvec[i] = key[i].pt
evec = _FFI.new("BIGNUM * []", len(elements))
for i in xrange(len(elements)):
try:
evec[i] = elements[i].bn
except AttributeError:
#does this even work properly?
evec[i] = Bn(elements[i]).bn
comm = EcPt(G)
_C.EC_POINTs_mul(G.ecg, comm.pt, _FFI.NULL, len(elements), bvec, evec,
_FFI.NULL)
return comm
