def shuffle(x, config=None, value_type=sgf2n, reverse=False):
""" Simulate secure shuffling with Waksman network for 2 players.
Returns the network switching config so it may be re-used later. """
n = len(x)
if n & (n - 1) != 0:
raise CompilerError('shuffle requires n a power of 2')
if config is None:
config = permutation.configure_waksman(permutation.random_perm(n))
for i, c in enumerate(config):
config[i] = [value_type(b) for b in c]
permutation.waksman(x, config, reverse=reverse)
permutation.waksman(x, config, reverse=reverse)
return config
def shuffle(x, config=None, value_type=sgf2n, reverse=False):
""" Simulate secure shuffling with Waksman network for 2 players.
Returns the network switching config so it may be re-used later. """
n = len(x)
if n & (n-1) != 0:
raise CompilerError('shuffle requires n a power of 2')
if config is None:
config = permutation.configure_waksman(permutation.random_perm(n))
for i,c in enumerate(config):
config[i] = [value_type(b) for b in c]
permutation.waksman(x, config, reverse=reverse)
permutation.waksman(x, config, reverse=reverse)
return config