def test_sloth_empty_init():
s = sloth.Sloth()
assert s.data is None
assert s.bits == 2048
assert s.iterations == 50000
assert s.final_hash is None
assert s.witness is None
def test_sloth_compute():
s = sloth.Sloth(data=ValidSloth.INPUT,
bits=ValidSloth.BITS,
iterations=ValidSloth.ITERATIONS)
s.compute()
s.wait()
assert s.final_hash
assert s.witness
def verify_sloth(inp, out, witness, bits, iterations):
s = sloth.Sloth(data=inp,
final_hash=out,
witness=witness,
bits=bits,
iterations=iterations)
s.verify()
s.wait()
return s.valid
def test_sloth_verify_bad_witness():
s = sloth.Sloth(data=InvalidWitness.INPUT,
final_hash=InvalidWitness.OUTPUT,
witness=InvalidWitness.WITNESS,
bits=InvalidWitness.BITS,
iterations=InvalidWitness.ITERATIONS)
s.verify()
s.wait()
assert not s.valid
def test_sloth_compute_verify():
s = sloth.Sloth(data=ValidSloth.INPUT,
bits=ValidSloth.BITS,
iterations=ValidSloth.ITERATIONS)
s.compute()
s.wait()
s.verify()
s.wait()
assert s.valid
def test_sloth_predef_verify():
s = sloth.Sloth(data=ValidSloth.INPUT,
final_hash=ValidSloth.OUTPUT,
witness=ValidSloth.WITNESS,
bits=ValidSloth.BITS,
iterations=ValidSloth.ITERATIONS)
s.verify()
s.wait()
assert s.valid
def test_sloth_init():
s = sloth.Sloth(data=ValidSloth.INPUT,
final_hash=ValidSloth.OUTPUT,
witness=ValidSloth.WITNESS,
bits=ValidSloth.BITS,
iterations=ValidSloth.ITERATIONS)
assert s.data == ValidSloth.INPUT
assert s.bits == ValidSloth.BITS
assert s.iterations == ValidSloth.ITERATIONS
assert s.final_hash == ValidSloth.OUTPUT
assert s.witness == ValidSloth.WITNESS
def test_sloth_iteration_time():
import time
s = sloth.Sloth(data=b'test', bits=1024, iterations=1000)
start_t = time.time()
s.compute()
s.wait()
t_1000iter = time.time() - start_t
s = sloth.Sloth(data=b'test', bits=1024, iterations=2000)
start_t = time.time()
s.compute()
s.wait()
t_2000iter = time.time() - start_t
s = sloth.Sloth(data=b'test', bits=1024, iterations=5000)
start_t = time.time()
s.compute()
s.wait()
t_5000iter = time.time() - start_t
assert t_1000iter < t_2000iter < t_5000iter, "Increase in bits does not increase time!"
def test_sloth_bits_time():
import time
s = sloth.Sloth(data=b'test', bits=512, iterations=1000)
start_t = time.time()
s.compute()
s.wait()
t_512bits = time.time() - start_t
s = sloth.Sloth(data=b'test', bits=1024, iterations=1000)
start_t = time.time()
s.compute()
s.wait()
t_1024bits = time.time() - start_t
s = sloth.Sloth(data=b'test', bits=2048, iterations=1000)
start_t = time.time()
s.compute()
s.wait()
t_2048bits = time.time() - start_t
assert t_512bits < t_1024bits < t_2048bits, "Increase in bits does not increase time!"
def sloth_timing(bits, iterations):
sum_comp = 0
sum_veri = 0
for i in range(LOOPS):
print("Loop", i + 1, "of", LOOPS)
s = sloth.Sloth(data=urandom(64), bits=bits, iterations=iterations)
sum_comp += timed_task(s, 'compute')
assert s.final_hash is not None
for _ in range(VERIFICATION_LOOPS):
sum_veri += timed_task(s, 'verify')
if not s.valid:
print("NOT VALID", "\n{}\n{}".format(s.final_hash, s.witness))
print("USED INPUT ->", s.data)
avg_comp = sum_comp / LOOPS
avg_veri = sum_veri / (LOOPS + VERIFICATION_LOOPS)
print("Avg. time:\n\tcomputation -> {}\n\tverification -> {}".format(
avg_comp, avg_veri))
if TIME_LOG:
with open(TIME_LOG, 'a+') as logf:
print(",{},{}".format(avg_comp, avg_veri), file=logf)
