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未验证 提交 c0220570 编写于 作者: T Tao Luo 提交者： GitHub
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Merge pull request #7554 from gx-wind/develop 

move adversarial directory to PaddlePaddle model repo
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adversarial/README.md 已删除 100644 → 0
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# Advbox
Advbox is a Python toolbox to create adversarial examples that fool neural networks. It requires Python and paddle.
## How to use
1. train a model and save it's parameters. (like fluid_mnist.py)
2. load the parameters which is trained in step1, then reconstruct the model.(like mnist_tutorial_fgsm.py)
3. use advbox to generate the adversarial sample.
adversarial/advbox/__init__.py 已删除 100644 → 0
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# Copyright (c) 2017 PaddlePaddle Authors. All Rights Reserved
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""
A set of tools for generating adversarial example on paddle platform
"""
adversarial/advbox/attacks/base.py 已删除 100644 → 0
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# Copyright (c) 2018 PaddlePaddle Authors. All Rights Reserve.
#
#Licensed under the Apache License, Version 2.0 (the "License");
#you may not use this file except in compliance with the License.
#You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
#Unless required by applicable law or agreed to in writing, software
#distributed under the License is distributed on an "AS IS" BASIS,
#WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#See the License for the specific language governing permissions and
#limitations under the License.
"""
The base model of the model.
"""
from abc import ABCMeta, abstractmethod
class Attack(object):
"""
Abstract base class for adversarial attacks. `Attack` represent an adversarial attack
which search an adversarial example. subclass should implement the _apply() method.
Args:
model(Model): an instance of the class advbox.base.Model.
"""
__metaclass__ = ABCMeta
def __init__(self, model):
self.model = model
def __call__(self, image_label):
"""
Generate the adversarial sample.
Args:
image_label(list): The image and label tuple list with one element.
"""
adv_img = self._apply(image_label)
return adv_img
@abstractmethod
def _apply(self, image_label):
"""
Search an adversarial example.
Args:
image_batch(list): The image and label tuple list with one element.
"""
raise NotImplementedError
adversarial/advbox/attacks/gradientsign.py 已删除 100644 → 0
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# Copyright (c) 2018 PaddlePaddle Authors. All Rights Reserve.
#
#Licensed under the Apache License, Version 2.0 (the "License");
#you may not use this file except in compliance with the License.
#You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
#Unless required by applicable law or agreed to in writing, software
#distributed under the License is distributed on an "AS IS" BASIS,
#WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#See the License for the specific language governing permissions and
#limitations under the License.
"""
This module provide the attack method for FGSM's implement.
"""
from __future__ import division
import numpy as np
from collections import Iterable
from .base import Attack
class GradientSignAttack(Attack):
"""
This attack was originally implemented by Goodfellow et al. (2015) with the
infinity norm (and is known as the "Fast Gradient Sign Method"). This is therefore called
the Fast Gradient Method.
Paper link: https://arxiv.org/abs/1412.6572
"""
def _apply(self, image_label, epsilons=1000):
assert len(image_label) == 1
pre_label = np.argmax(self.model.predict(image_label))
min_, max_ = self.model.bounds()
gradient = self.model.gradient(image_label)
gradient_sign = np.sign(gradient) * (max_ - min_)
if not isinstance(epsilons, Iterable):
epsilons = np.linspace(0, 1, num=epsilons + 1)
for epsilon in epsilons:
adv_img = image_label[0][0].reshape(
gradient_sign.shape) + epsilon * gradient_sign
adv_img = np.clip(adv_img, min_, max_)
adv_label = np.argmax(self.model.predict([(adv_img, 0)]))
if pre_label != adv_label:
return adv_img
FGSM = GradientSignAttack
class IteratorGradientSignAttack(Attack):
"""
This attack was originally implemented by Alexey Kurakin(Google Brain).
Paper link: https://arxiv.org/pdf/1607.02533.pdf
"""
def _apply(self, image_label, epsilons=100, steps=10):
"""
Apply the iterative gradient sign attack.
Args:
image_label(list): The image and label tuple list of one element.
epsilons(list|tuple|int): The epsilon (input variation parameter).
steps(int): The number of iterator steps.
Return:
numpy.ndarray: The adversarail sample generated by the algorithm.
"""
assert len(image_label) == 1
pre_label = np.argmax(self.model.predict(image_label))
gradient = self.model.gradient(image_label)
min_, max_ = self.model.bounds()
if not isinstance(epsilons, Iterable):
epsilons = np.linspace(0, 1, num=epsilons + 1)
for epsilon in epsilons:
adv_img = image_label[0][0].reshape(gradient.shape)
for _ in range(steps):
gradient = self.model.gradient([(adv_img, image_label[0][1])])
gradient_sign = np.sign(gradient) * (max_ - min_)
adv_img = adv_img + epsilon * gradient_sign
adv_img = np.clip(adv_img, min_, max_)
adv_label = np.argmax(self.model.predict([(adv_img, 0)]))
if pre_label != adv_label:
return adv_img
adversarial/advbox/models/__init__.py 已删除 100644 → 0
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# Copyright (c) 2017 PaddlePaddle Authors. All Rights Reserved
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""
Paddle model for target of attack
"""
adversarial/advbox/models/base.py 已删除 100644 → 0
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# Copyright (c) 2018 PaddlePaddle Authors. All Rights Reserve.
#
#Licensed under the Apache License, Version 2.0 (the "License");
#you may not use this file except in compliance with the License.
#You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
#Unless required by applicable law or agreed to in writing, software
#distributed under the License is distributed on an "AS IS" BASIS,
#WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#See the License for the specific language governing permissions and
#limitations under the License.
"""
The base model of the model.
"""
from abc import ABCMeta
import abc
abstractmethod = abc.abstractmethod
class Model(object):
"""
Base class of model to provide attack.
Args:
bounds(tuple): The lower and upper bound for the image pixel.
channel_axis(int): The index of the axis that represents the color channel.
preprocess(tuple): Two element tuple used to preprocess the input. First
substract the first element, then divide the second element.
"""
__metaclass__ = ABCMeta
def __init__(self, bounds, channel_axis, preprocess=None):
assert len(bounds) == 2
assert channel_axis in [0, 1, 2, 3]
if preprocess is None:
preprocess = (0, 1)
self._bounds = bounds
self._channel_axis = channel_axis
self._preprocess = preprocess
def bounds(self):
"""
Return the upper and lower bounds of the model.
"""
return self._bounds
def channel_axis(self):
"""
Return the channel axis of the model.
"""
return self._channel_axis
def _process_input(self, input_):
res = input_
sub, div = self._preprocess
if sub != 0:
res = input_ - sub
assert div != 0
if div != 1:
res /= div
return res
@abstractmethod
def predict(self, image_batch):
"""
Calculate the prediction of the image batch.
Args:
image_batch(numpy.ndarray): image batch of shape (batch_size, height, width, channels).
Return:
numpy.ndarray: predictions of the images with shape (batch_size, num_of_classes).
"""
raise NotImplementedError
@abstractmethod
def num_classes(self):
"""
Determine the number of the classes
Return:
int: the number of the classes
"""
raise NotImplementedError
@abstractmethod
def gradient(self, image_batch):
"""
Calculate the gradient of the cross-entropy loss w.r.t the image.
Args:
image_batch(list): The image and label tuple list.
Return:
numpy.ndarray: gradient of the cross-entropy loss w.r.t the image with
the shape (height, width, channel).
"""
raise NotImplementedError
adversarial/advbox/models/paddle.py 已删除 100644 → 0
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# Copyright (c) 2018 PaddlePaddle Authors. All Rights Reserve.
#
#Licensed under the Apache License, Version 2.0 (the "License");
#you may not use this file except in compliance with the License.
#You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
#Unless required by applicable law or agreed to in writing, software
#distributed under the License is distributed on an "AS IS" BASIS,
#WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#See the License for the specific language governing permissions and
#limitations under the License.
from __future__ import absolute_import
import numpy as np
import paddle.v2 as paddle
import paddle.v2.fluid as fluid
from paddle.v2.fluid.framework import program_guard
from .base import Model
class PaddleModel(Model):
"""
Create a PaddleModel instance.
When you need to generate a adversarial sample, you should construct an instance of PaddleModel.
Args:
program(paddle.v2.fluid.framework.Program): The program of the model which generate the adversarial sample.
input_name(string): The name of the input.
logits_name(string): The name of the logits.
predict_name(string): The name of the predict.
cost_name(string): The name of the loss in the program.
"""
def __init__(self,
program,
input_name,
logits_name,
predict_name,
cost_name,
bounds,
channel_axis=3,
preprocess=None):
super(PaddleModel, self).__init__(
bounds=bounds, channel_axis=channel_axis, preprocess=preprocess)
if preprocess is None:
preprocess = (0, 1)
self._program = program
self._place = fluid.CPUPlace()
self._exe = fluid.Executor(self._place)
self._input_name = input_name
self._logits_name = logits_name
self._predict_name = predict_name
self._cost_name = cost_name
# gradient
loss = self._program.block(0).var(self._cost_name)
param_grads = fluid.backward.append_backward(
loss, parameter_list=[self._input_name])
self._gradient = dict(param_grads)[self._input_name]
def predict(self, image_batch):
"""
Predict the label of the image_batch.
Args:
image_batch(list): The image and label tuple list.
Return:
numpy.ndarray: predictions of the images with shape (batch_size, num_of_classes).
"""
feeder = fluid.DataFeeder(
feed_list=[self._input_name, self._logits_name],
place=self._place,
program=self._program)
predict_var = self._program.block(0).var(self._predict_name)
predict = self._exe.run(self._program,
feed=feeder.feed(image_batch),
fetch_list=[predict_var])
return predict
def num_classes(self):
"""
Calculate the number of classes of the output label.
Return:
int: the number of classes
"""
predict_var = self._program.block(0).var(self._predict_name)
assert len(predict_var.shape) == 2
return predict_var.shape[1]
def gradient(self, image_batch):
"""
Calculate the gradient of the loss w.r.t the input.
Args:
image_batch(list): The image and label tuple list.
Return:
list: The list of the gradient of the image.
"""
feeder = fluid.DataFeeder(
feed_list=[self._input_name, self._logits_name],
place=self._place,
program=self._program)
grad, = self._exe.run(self._program,
feed=feeder.feed(image_batch),
fetch_list=[self._gradient])
return grad
adversarial/fluid_mnist.py 已删除 100644 → 0
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# Copyright (c) 2018 PaddlePaddle Authors. All Rights Reserve.
#
#Licensed under the Apache License, Version 2.0 (the "License");
#you may not use this file except in compliance with the License.
#You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
#Unless required by applicable law or agreed to in writing, software
#distributed under the License is distributed on an "AS IS" BASIS,
#WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#See the License for the specific language governing permissions and
#limitations under the License.
"""
CNN on mnist data using fluid api of paddlepaddle
"""
import paddle.v2 as paddle
import paddle.v2.fluid as fluid
def mnist_cnn_model(img):
"""
Mnist cnn model
Args:
img(Varaible): the input image to be recognized
Returns:
Variable: the label prediction
"""
conv_pool_1 = fluid.nets.simple_img_conv_pool(
input=img,
num_filters=20,
filter_size=5,
pool_size=2,
pool_stride=2,
act='relu')
conv_pool_2 = fluid.nets.simple_img_conv_pool(
input=conv_pool_1,
num_filters=50,
filter_size=5,
pool_size=2,
pool_stride=2,
act='relu')
logits = fluid.layers.fc(input=conv_pool_2, size=10, act='softmax')
return logits
def main():
"""
Train the cnn model on mnist datasets
"""
img = fluid.layers.data(name='img', shape=[1, 28, 28], dtype='float32')
label = fluid.layers.data(name='label', shape=[1], dtype='int64')
logits = mnist_cnn_model(img)
cost = fluid.layers.cross_entropy(input=logits, label=label)
avg_cost = fluid.layers.mean(x=cost)
optimizer = fluid.optimizer.Adam(learning_rate=0.01)
optimizer.minimize(avg_cost)
accuracy = fluid.evaluator.Accuracy(input=logits, label=label)
BATCH_SIZE = 50
PASS_NUM = 3
ACC_THRESHOLD = 0.98
LOSS_THRESHOLD = 10.0
train_reader = paddle.batch(
paddle.reader.shuffle(
paddle.dataset.mnist.train(), buf_size=500),
batch_size=BATCH_SIZE)
place = fluid.CPUPlace()
exe = fluid.Executor(place)
feeder = fluid.DataFeeder(feed_list=[img, label], place=place)
exe.run(fluid.default_startup_program())
for pass_id in range(PASS_NUM):
accuracy.reset(exe)
for data in train_reader():
loss, acc = exe.run(fluid.default_main_program(),
feed=feeder.feed(data),
fetch_list=[avg_cost] + accuracy.metrics)
pass_acc = accuracy.eval(exe)
print("pass_id=" + str(pass_id) + " acc=" + str(acc) + " pass_acc="
+ str(pass_acc))
if loss < LOSS_THRESHOLD and pass_acc > ACC_THRESHOLD:
break
pass_acc = accuracy.eval(exe)
print("pass_id=" + str(pass_id) + " pass_acc=" + str(pass_acc))
fluid.io.save_params(
exe, dirname='./mnist', main_program=fluid.default_main_program())
print('train mnist done')
if __name__ == '__main__':
main()
adversarial/mnist_tutorial_fgsm.py 已删除 100644 → 0
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# Copyright (c) 2018 PaddlePaddle Authors. All Rights Reserve.
#
#Licensed under the Apache License, Version 2.0 (the "License");
#you may not use this file except in compliance with the License.
#You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
#Unless required by applicable law or agreed to in writing, software
#distributed under the License is distributed on an "AS IS" BASIS,
#WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#See the License for the specific language governing permissions and
#limitations under the License.
"""
FGSM demos on mnist using advbox tool.
"""
import paddle.v2 as paddle
import paddle.v2.fluid as fluid
import matplotlib.pyplot as plt
import numpy as np
from advbox.models.paddle import PaddleModel
from advbox.attacks.gradientsign import GradientSignAttack
def cnn_model(img):
"""
Mnist cnn model
Args:
img(Varaible): the input image to be recognized
Returns:
Variable: the label prediction
"""
#conv1 = fluid.nets.conv2d()
conv_pool_1 = fluid.nets.simple_img_conv_pool(
input=img,
num_filters=20,
filter_size=5,
pool_size=2,
pool_stride=2,
act='relu')
conv_pool_2 = fluid.nets.simple_img_conv_pool(
input=conv_pool_1,
num_filters=50,
filter_size=5,
pool_size=2,
pool_stride=2,
act='relu')
logits = fluid.layers.fc(input=conv_pool_2, size=10, act='softmax')
return logits
def main():
"""
Advbox demo which demonstrate how to use advbox.
"""
IMG_NAME = 'img'
LABEL_NAME = 'label'
img = fluid.layers.data(name=IMG_NAME, shape=[1, 28, 28], dtype='float32')
# gradient should flow
img.stop_gradient = False
label = fluid.layers.data(name=LABEL_NAME, shape=[1], dtype='int64')
logits = cnn_model(img)
cost = fluid.layers.cross_entropy(input=logits, label=label)
avg_cost = fluid.layers.mean(x=cost)
place = fluid.CPUPlace()
exe = fluid.Executor(place)
BATCH_SIZE = 1
train_reader = paddle.batch(
paddle.reader.shuffle(
paddle.dataset.mnist.train(), buf_size=500),
batch_size=BATCH_SIZE)
feeder = fluid.DataFeeder(
feed_list=[IMG_NAME, LABEL_NAME],
place=place,
program=fluid.default_main_program())
fluid.io.load_params(
exe, "./mnist/", main_program=fluid.default_main_program())
# advbox demo
m = PaddleModel(fluid.default_main_program(), IMG_NAME, LABEL_NAME,
logits.name, avg_cost.name, (-1, 1))
att = GradientSignAttack(m)
for data in train_reader():
# fgsm attack
adv_img = att(data)
plt.imshow(n[0][0], cmap='Greys_r')
plt.show()
#np.save('adv_img', adv_img)
break
if __name__ == '__main__':
main()
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