def setUp(self):
ctx = FakeContext()
secret_key = ctx.generate_keys()
tape = Tape()
tape_indices = tape.generate_tape(2, ctx, secret_key)
utils.flag = Number.from_plaintext(1, ctx, secret_key, size=1)
utils.one = Number.from_plaintext(1, ctx, secret_key, size=1)
utils.zero = Number.from_plaintext(0, ctx, secret_key, size=1)
# Initial state of machine
data_ptr = Number.from_plaintext(0, ctx, secret_key)
instruction_ptr = Number.from_plaintext(0, ctx, secret_key)
# Defines instructions
inc_data_ptr = Number.from_plaintext(1, ctx, secret_key)
inc_data_cell = Number.from_plaintext(2, ctx, secret_key)
dec_data_ptr = Number.from_plaintext(3, ctx, secret_key)
dec_data_cell = Number.from_plaintext(4, ctx, secret_key)
mark_loop = Number.from_plaintext(5, ctx, secret_key)
loop_back = Number.from_plaintext(6, ctx, secret_key)
instruction_set = {
"+":inc_data_cell,
"-":dec_data_cell,
">":inc_data_ptr,
"<":dec_data_ptr,
"[":mark_loop,
"]":loop_back
}
instructions, instruction_indices = VirtualMachine.compile("++[>+++<-]", instruction_set, ctx, secret_key)
self.blind_machine = VirtualMachine(
tape,
tape_indices,
instruction_indices,
instruction_set,
instructions,
instruction_ptr,
data_ptr
)
self.context = ctx
self.secret_key = secret_key
self.tape = tape
def run(code, tape_size=2):
ctx = NUFHEContext()
#ctx = FakeContext()
secret_key = ctx.generate_keys()
# Create tape with size of 2
tape = Tape()
tape_indices = tape.generate_tape(tape_size, ctx, secret_key)
utils.flag = Number.from_plaintext(1, ctx, secret_key, size=1)
utils.one = Number.from_plaintext(1, ctx, secret_key, size=1)
utils.zero = Number.from_plaintext(0, ctx, secret_key, size=1)
# Initial state of machine
data_ptr = Number.from_plaintext(0, ctx, secret_key)
instruction_ptr = Number.from_plaintext(0, ctx, secret_key)
# Defines instructions
inc_data_ptr = Number.from_plaintext(1, ctx, secret_key)
inc_data_cell = Number.from_plaintext(2, ctx, secret_key)
dec_data_ptr = Number.from_plaintext(3, ctx, secret_key)
dec_data_cell = Number.from_plaintext(4, ctx, secret_key)
mark_loop = Number.from_plaintext(5, ctx, secret_key)
loop_back = Number.from_plaintext(6, ctx, secret_key)
instruction_set = {
"+": inc_data_cell,
"-": dec_data_cell,
">": inc_data_ptr,
"<": dec_data_ptr,
"[": mark_loop,
"]": loop_back
}
instructions, instruction_indices = VirtualMachine.compile(
code, instruction_set, ctx, secret_key)
blind_machine = VirtualMachine(tape, tape_indices, instruction_indices,
instruction_set, instructions,
instruction_ptr, data_ptr)
blind_machine.run()
pprint.pprint(tape.decrypt_tape(secret_key))
