def test_dense_range():
"""Equal ranges must yield 1-to-1 mapping"""
range_start = 0
range_end = 2**15
in_range = ValueRange(range_start, range_end)
out_range = ValueRange(range_start, range_end)
key = b'123'
cipher = OPE(key, in_range, out_range)
values = [0, 10, 20, 50, 100, 1000, 2**10, 2**15]
for v in values:
assert cipher.encrypt(v) == v
assert cipher.decrypt(v) == v
with pytest.raises(Exception):
OPE(key, ValueRange(0, 10), ValueRange(1, 2))
def homepage(request):
data = DatabaseData.objects.order_by('number')[:10]
if data:
encrypted_data = DatabaseData.objects.values(
'key', 'number').order_by('number')
cipher = OPE(b'mDErfp0Arn+noGTR+p0P9CmGU8+KKenk8ff+6aHxPi0=')
for x in encrypted_data:
x["number"] = cipher.decrypt(x["number"])
context = {'data': data, 'encrypted_data': encrypted_data}
else:
context = {}
return render(request, 'index.html', context)
def test_ope_encrypt_decrypt():
"""Encrypt and then decrypt"""
values = [-1000, -100, -20, -1, 0, 1, 10, 100, 314, 1337, 1338, 10000]
key = b'key'
in_range = ValueRange(-1000, 2**20)
out_range = ValueRange(-10000, 2**32)
# Client encrypts values
cipher = OPE(key, in_range, out_range)
encrypted_values = [cipher.encrypt(value) for value in values]
# Decryption at the peer side
cipher_dec = OPE(key, in_range, out_range)
for value, encrypted in zip(values, encrypted_values):
decrypted = cipher_dec.decrypt(encrypted)
assert value == decrypted, "Dec(Enc(P)) != P"
def test_dense_range():
"""Equal ranges must yield 1-to-1 mapping"""
range_start = 0
range_end = 2**15
in_range = ValueRange(range_start, range_end)
out_range = ValueRange(range_start, range_end)
key = b'123'
cipher = OPE(key, in_range, out_range)
values = [0, 10, 20, 50, 100, 1000, 2**10, 2**15]
for v in values:
assert cipher.encrypt(v) == v
assert cipher.decrypt(v) == v
with pytest.raises(Exception):
OPE(key, ValueRange(0,10), ValueRange(1,2))
def test_ope_encrypt_decrypt():
"""Encrypt and then decrypt"""
values = [-1000, -100, -20, -1, 0, 1, 10, 100, 314, 1337, 1338, 10000]
key = b'key'
in_range = ValueRange(-1000, 2**20)
out_range = ValueRange(-10000, 2**32)
# Client encrypts values
cipher = OPE(key, in_range, out_range)
encrypted_values = [cipher.encrypt(value) for value in values]
# Decryption at the peer side
cipher_dec = OPE(key, in_range, out_range)
for value, encrypted in zip(values, encrypted_values):
decrypted = cipher_dec.decrypt(encrypted)
assert value == decrypted, "Dec(Enc(P)) != P"
while True:
# Wait for a connection
print >>sys.stderr, 'waiting for a connection'
connection, client_address = sock.accept()
try:
# Receive the data in small chunks and retransmit it
while True:
data = connection.recv(32)
if data:
val = int(str(data).strip());
if val < 0:
break
try:
dec = cipher.decrypt(val)
answer = str(dec) + '\n'
connection.sendall(answer)
except:
print 'Invalid ciphertext:', val
connection.sendall('-1\n')
else:
print >>sys.stderr, 'no more data from', client_address
break
finally:
# Clean up the connection
connection.close()
break
sock.close()
# Benchmarks encryption via systemcall in java.
#
# Usage:
#
# python benchmarkSystemcall.py key value
# example: python benchmarkSystemcall.py Friday value
#
import sys
from pyope.ope import OPE
from pyope.ope import ValueRange
# store key
key = str(sys.argv[1])
inrange = ValueRange(0, 2**34 - 1)
outrange = ValueRange(0, 2**50 - 1)
cipher = OPE(key, inrange, outrange)
val = int(sys.argv[2])
enc = cipher.encrypt(val)
dec = cipher.decrypt(enc)
answer = '(' + str(enc) + ',' + str(dec) + ')'
print answer
# -*- coding: utf-8 -*-
import sys
from pyope.ope import OPE, ValueRange
cipher = OPE(b'key goes here' * 2,
in_range=ValueRange(-2**31, 2**31 - 1),
out_range=ValueRange(-2**53, 2**53 - 1))
input = sys.argv[1]
if " " in input:
for i in input.split():
print cipher.decrypt(int(i))
print 0
else:
print cipher.decrypt(int(input))
# Decrypts given integer value with given key. # # Usage: # # python decrypt.py key integerValue # example: python decrypt.py Friday 87072464 # import sys from pyope.ope import OPE from pyope.ope import ValueRange inrange = ValueRange(0, 2**34 - 1) outrange = ValueRange(0, 2**50 - 1) cipher = OPE(str(sys.argv[1]), inrange, outrange) print(cipher.decrypt(int(sys.argv[2])))