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PEP8: E225,E227

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Jouke Waleson
2014-11-23 21:23:05 +01:00
parent 8bcc875676
commit 2514d2635e
19 changed files with 43 additions and 43 deletions
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32
youtube_dl/aes.py
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@@ -24,8 +24,8 @@ def aes_ctr_decrypt(data, key, counter):
decrypted_data = []
for i in range(block_count):
counter_block = counter.next_value()
block = data[i *BLOCK_SIZE_BYTES: (i +1) *BLOCK_SIZE_BYTES]
block += [0] *(BLOCK_SIZE_BYTES - len(block))
block = data[i * BLOCK_SIZE_BYTES: (i + 1) * BLOCK_SIZE_BYTES]
block += [0] * (BLOCK_SIZE_BYTES - len(block))
cipher_counter_block = aes_encrypt(counter_block, expanded_key)
decrypted_data += xor(block, cipher_counter_block)
@@ -49,8 +49,8 @@ def aes_cbc_decrypt(data, key, iv):
decrypted_data = []
previous_cipher_block = iv
for i in range(block_count):
block = data[i *BLOCK_SIZE_BYTES: (i +1) *BLOCK_SIZE_BYTES]
block += [0] *(BLOCK_SIZE_BYTES - len(block))
block = data[i * BLOCK_SIZE_BYTES: (i + 1) * BLOCK_SIZE_BYTES]
block += [0] * (BLOCK_SIZE_BYTES - len(block))
decrypted_block = aes_decrypt(block, expanded_key)
decrypted_data += xor(decrypted_block, previous_cipher_block)
@@ -76,20 +76,20 @@ def key_expansion(data):
temp = data[-4:]
temp = key_schedule_core(temp, rcon_iteration)
rcon_iteration += 1
data += xor(temp, data[-key_size_bytes: 4 -key_size_bytes])
data += xor(temp, data[-key_size_bytes: 4 - key_size_bytes])
for _ in range(3):
temp = data[-4:]
data += xor(temp, data[-key_size_bytes: 4 -key_size_bytes])
data += xor(temp, data[-key_size_bytes: 4 - key_size_bytes])
if key_size_bytes == 32:
temp = data[-4:]
temp = sub_bytes(temp)
data += xor(temp, data[-key_size_bytes: 4 -key_size_bytes])
data += xor(temp, data[-key_size_bytes: 4 - key_size_bytes])
for _ in range(3 if key_size_bytes == 32 else 2 if key_size_bytes == 24 else 0):
temp = data[-4:]
data += xor(temp, data[-key_size_bytes: 4 -key_size_bytes])
data += xor(temp, data[-key_size_bytes: 4 - key_size_bytes])
data = data[:expanded_key_size_bytes]
return data
@@ -106,12 +106,12 @@ def aes_encrypt(data, expanded_key):
rounds = len(expanded_key) // BLOCK_SIZE_BYTES - 1
data = xor(data, expanded_key[:BLOCK_SIZE_BYTES])
for i in range(1, rounds +1):
for i in range(1, rounds + 1):
data = sub_bytes(data)
data = shift_rows(data)
if i != rounds:
data = mix_columns(data)
data = xor(data, expanded_key[i *BLOCK_SIZE_BYTES: (i +1) *BLOCK_SIZE_BYTES])
data = xor(data, expanded_key[i * BLOCK_SIZE_BYTES: (i + 1) * BLOCK_SIZE_BYTES])
return data
@@ -127,7 +127,7 @@ def aes_decrypt(data, expanded_key):
rounds = len(expanded_key) // BLOCK_SIZE_BYTES - 1
for i in range(rounds, 0, -1):
data = xor(data, expanded_key[i *BLOCK_SIZE_BYTES: (i +1) *BLOCK_SIZE_BYTES])
data = xor(data, expanded_key[i * BLOCK_SIZE_BYTES: (i + 1) * BLOCK_SIZE_BYTES])
if i != rounds:
data = mix_columns_inv(data)
data = shift_rows_inv(data)
@@ -155,14 +155,14 @@ def aes_decrypt_text(data, password, key_size_bytes):
data = bytes_to_intlist(base64.b64decode(data))
password = bytes_to_intlist(password.encode('utf-8'))
key = password[:key_size_bytes] + [0] *(key_size_bytes - len(password))
key = password[:key_size_bytes] + [0] * (key_size_bytes - len(password))
key = aes_encrypt(key[:BLOCK_SIZE_BYTES], key_expansion(key)) * (key_size_bytes // BLOCK_SIZE_BYTES)
nonce = data[:NONCE_LENGTH_BYTES]
cipher = data[NONCE_LENGTH_BYTES:]
class Counter:
__value = nonce + [0] *(BLOCK_SIZE_BYTES - NONCE_LENGTH_BYTES)
__value = nonce + [0] * (BLOCK_SIZE_BYTES - NONCE_LENGTH_BYTES)
def next_value(self):
temp = self.__value
@@ -270,7 +270,7 @@ def key_schedule_core(data, rcon_iteration):
def xor(data1, data2):
return [x^y for x, y in zip(data1, data2)]
return [x ^ y for x, y in zip(data1, data2)]
def rijndael_mul(a, b):
@@ -293,7 +293,7 @@ def mix_column(data, matrix):
def mix_columns(data, matrix=MIX_COLUMN_MATRIX):
data_mixed = []
for i in range(4):
column = data[i *4: (i +1) *4]
column = data[i * 4: (i + 1) * 4]
data_mixed += mix_column(column, matrix)
return data_mixed
@@ -320,7 +320,7 @@ def shift_rows_inv(data):
def inc(data):
data = data[:] # copy
for i in range(len(data) -1, -1, -1):
for i in range(len(data) - 1, -1, -1):
if data[i] == 255:
data[i] = 0
else: