def test_roundtrip():
"""AES file encryption/decryption roundtrip produces identical files."""
with open(infn, 'rb') as infile, open(encfn, 'wb') as outfile:
encrypt(infile, outfile, password)
with open(encfn, 'rb') as infile, open(outfn, 'wb') as outfile:
decrypt(infile, outfile, password)
with open(infn, 'rb') as original, open(outfn, 'rb') as copy:
assert original.read() == copy.read()
def test_roundtrip():
"""AES file encryption/decryption roundtrip produces identical files."""
with open(infn, 'rb') as infile, open(encfn, 'wb') as outfile:
encrypt(infile, outfile, password)
with open(encfn, 'rb') as infile, open(outfn, 'wb') as outfile:
decrypt(infile, outfile, password)
with open(infn, 'rb') as original, open(outfn, 'rb') as copy:
assert original.read() == copy.read()
def test_key_size():
"""Key sizes of 128, 192 and 256 bit produce valid ciphertexts."""
infile = BytesIO(plaintext.encode())
for key_size in AES.key_size:
cipherfile = BytesIO()
encrypt(infile, cipherfile, password, key_size=key_size)
infile.seek(0)
ciphertext = cipherfile.getvalue()
assert len(ciphertext) % 16 == 0
cipherfile.seek(0)
outfile = BytesIO()
decrypt(cipherfile, outfile, password, key_size=key_size)
decrypted = outfile.getvalue().decode('utf-8')
assert decrypted == plaintext
def test_key_size():
"""Key sizes of 128, 192 and 256 bit produce valid ciphertexts."""
infile = BytesIO(plaintext.encode())
for key_size in AES.key_size:
cipherfile = BytesIO()
encrypt(infile, cipherfile, password, key_size=key_size)
infile.seek(0)
ciphertext = cipherfile.getvalue()
assert len(ciphertext) % 16 == 0
cipherfile.seek(0)
outfile = BytesIO()
decrypt(cipherfile, outfile, password, key_size=key_size)
decrypted = outfile.getvalue().decode('utf-8')
assert decrypted == plaintext
abort = False
#on verifie que le destinataire a une clef
info_pk = generateurKeystore.exportSec(args.user_id)
if info_pk < 0:
abort = True
print "Destinaire n'a pas de clef"
fichier = open(args.in_info, "r")
lines=fichier.readlines()
cle_enc = ''.join(lines[:1])
message_crypte = ''.join(lines[1:])
fichier.close()
if abort is False and message_crypte == "":
abort = True
print "Le message crypté est vide"
if not abort:
sess_key = elgamal.decrypt(info_pk[2], cle_enc)
message_dec = aescrypt.decrypt(sess_key,message_crypte, "genereiv".encode('hex'))
fichier_out=open(args.out_info, "w")
fichier_out.write(message_dec)
fichier_out.close()
print "Message décrypté écrit dans "+args.out_info
else :
print("commande imcomprise")
def test_bad_decrypt():
"""Trying to decrypt invalid input raises ValueError."""
with BytesIO(plaintext[:256].encode()) as infile, BytesIO() as outfile:
decrypt(infile, outfile, password)
def test_bad_decrypt():
"""Trying to decrypt invalid input raises ValueError."""
with BytesIO(plaintext[:256].encode()) as infile, BytesIO() as outfile:
decrypt(infile, outfile, password)
