import os

import numpy as np
import h5py

%matplotlib notebook
from matplotlib import pyplot as plt

print('hello ghpages')
print('Reference : https://jungsooyun.github.io/notebook/post-with-jupyter/')

def check_file_exists(file_path):
    if os.path.exists(file_path) == False:
        print("Error: provided file path '%s' does not exist!" % file_path)
        return False
    print("EXIST :", file_path)
    return True

fpath = 'trace.h5'

if check_file_exists(fpath):
    with h5py.File(fpath, 'r') as h5f:
        print(list(h5f.keys()))

        tr = h5f['trace'][:]
        pt = h5f['plaintext'][:]
        ct = h5f['ciphertext'][:]
        key = h5f['key']

        print(tr.shape, pt.shape, ct.shape, key.shape)

plt.plot(tr[0])
plt.show()