Python 从 Python 2 转换为 python 3 时出现加密 unicode 错误
Python encryption unicode error when converting from Python 2 to python 3
我找到了一些我想合并到我的 Python 加密程序中的代码。它应该加密代码同一目录中的文件,我希望它以一个目录为目标。但是,它是用 Python 2 编写的,当我更改一些代码以适应 Python 3 时,我收到以下错误:
Traceback (most recent call last):
File "/home/pi/Desktop/Projects/FyleCript/Dev Files/encryption.py", line 77, in <module>
encrypt(SHA256.new(password).digest(), str(Tfiles))
File "/usr/lib/python3/dist-packages/Crypto/Hash/SHA256.py", line 88, in new
return SHA256Hash().new(data)
File "/usr/lib/python3/dist-packages/Crypto/Hash/SHA256.py", line 75, in new
return SHA256Hash(data)
File "/usr/lib/python3/dist-packages/Crypto/Hash/SHA256.py", line 72, in __init__
HashAlgo.__init__(self, hashFactory, data)
File "/usr/lib/python3/dist-packages/Crypto/Hash/hashalgo.py", line 51, in __init__
self.update(data)
File "/usr/lib/python3/dist-packages/Crypto/Hash/hashalgo.py", line 69, in update
return self._hash.update(data)
TypeError: Unicode-objects must be encoded before hashing
但代码在 Python 中完美运行 2. 我尝试在 SO 和谷歌搜索上寻找类似的问题,但没有帮助。
代码:
def encrypt(key, filename):
chunksize = 64 * 1024
outFile = os.path.join(os.path.dirname(filename), "(encrypted)"+os.path.basename(filename))
filesize = str(os.path.getsize(filename)).zfill(16)
IV = ''
for i in range(16):
IV += chr(random.randint(0, 0xFF))
encryptor = AES.new(key, AES.MODE_CBC, IV)
with open(filename, "rb") as infile:
with open(outFile, "wb") as outfile:
outfile.write(filesize)
outfile.write(IV)
while True:
chunk = infile.read(chunksize)
if len(chunk) == 0:
break
elif len(chunk) % 16 !=0:
chunk += ' ' * (16 - (len(chunk) % 16))
outfile.write(encryptor.encrypt(chunk))
def decrypt(key, filename):
outFile = os.path.join(os.path.dirname(filename), os.path.basename(filename[11:]))
chunksize = 64 * 1024
with open(filename, "rb") as infile:
filesize = infile.read(16)
IV = infile.read(16)
decryptor = AES.new(key, AES.MODE_CBC, IV)
with open(outFile, "wb") as outfile:
while True:
chunk = infile.read(chunksize)
if len(chunk) == 0:
break
outfile.write(decryptor.decrypt(chunk))
outfile.truncate(int(filesize))
def allfiles():
allFiles = []
for root, subfiles, files in os.walk(os.getcwd()):
for names in files:
allFiles.append(os.path.join(root, names))
return allFiles
choice = input("Do you want to (E)ncrypt or (D)ecrypt? ")
password = input("Enter the password: ")
encFiles = allfiles()
if choice == "E" or 'e':
for Tfiles in encFiles:
if os.path.basename(Tfiles).startswith("(encrypted)"):
print("%s is already encrypted" %str(Tfiles))
pass
elif Tfiles == os.path.join(os.getcwd(), sys.argv[0]):
pass
else:
encrypt(SHA256.new(password).digest(), str(Tfiles))
print("Done encrypting %s" %str(Tfiles))
os.remove(Tfiles)
elif choice == "D" or 'd':
filename = input("Enter the filename to decrypt: ")
if not os.path.exists(filename):
print("The file does not exist")
sys.exit()
elif not filename.startswith("(encrypted)"):
print("%s is already not encrypted" %filename)
sys.exit()
else:
decrypt(SHA256.new(password).digest(), filename)
print("Done decrypting %s" %filename)
os.remove(filename)
else:
print("Please choose a valid command.")
sys.exit()
谁能帮我解决这个问题?我已经使用了 Python 2 到 3 工具,但它仍然没有用。
另外,能否请您解决目录问题?没必要,但我愿意。
编辑: 我已经用 bytes
和 bytearray
替换了 str
但它 returns 同样的错误。
您的 'password' 变量是一个字符串,但 SHA256.new
需要字节(例如,允许使用 unicode)。您需要的字节列在 Crypto.Hash.SHA256 documentation.
解决方案是在散列之前将密码编码为字节。这几乎就是错误消息所说的(如果您知道 python 3 中的所有字符串都是 unicode 对象):
TypeError: Unicode-objects must be encoded before hashing
解决方案是例如使用 utf8 编码:
SHA256.new(password.encode('utf8')).digest()
我找到了一些我想合并到我的 Python 加密程序中的代码。它应该加密代码同一目录中的文件,我希望它以一个目录为目标。但是,它是用 Python 2 编写的,当我更改一些代码以适应 Python 3 时,我收到以下错误:
Traceback (most recent call last):
File "/home/pi/Desktop/Projects/FyleCript/Dev Files/encryption.py", line 77, in <module>
encrypt(SHA256.new(password).digest(), str(Tfiles))
File "/usr/lib/python3/dist-packages/Crypto/Hash/SHA256.py", line 88, in new
return SHA256Hash().new(data)
File "/usr/lib/python3/dist-packages/Crypto/Hash/SHA256.py", line 75, in new
return SHA256Hash(data)
File "/usr/lib/python3/dist-packages/Crypto/Hash/SHA256.py", line 72, in __init__
HashAlgo.__init__(self, hashFactory, data)
File "/usr/lib/python3/dist-packages/Crypto/Hash/hashalgo.py", line 51, in __init__
self.update(data)
File "/usr/lib/python3/dist-packages/Crypto/Hash/hashalgo.py", line 69, in update
return self._hash.update(data)
TypeError: Unicode-objects must be encoded before hashing
但代码在 Python 中完美运行 2. 我尝试在 SO 和谷歌搜索上寻找类似的问题,但没有帮助。
代码:
def encrypt(key, filename):
chunksize = 64 * 1024
outFile = os.path.join(os.path.dirname(filename), "(encrypted)"+os.path.basename(filename))
filesize = str(os.path.getsize(filename)).zfill(16)
IV = ''
for i in range(16):
IV += chr(random.randint(0, 0xFF))
encryptor = AES.new(key, AES.MODE_CBC, IV)
with open(filename, "rb") as infile:
with open(outFile, "wb") as outfile:
outfile.write(filesize)
outfile.write(IV)
while True:
chunk = infile.read(chunksize)
if len(chunk) == 0:
break
elif len(chunk) % 16 !=0:
chunk += ' ' * (16 - (len(chunk) % 16))
outfile.write(encryptor.encrypt(chunk))
def decrypt(key, filename):
outFile = os.path.join(os.path.dirname(filename), os.path.basename(filename[11:]))
chunksize = 64 * 1024
with open(filename, "rb") as infile:
filesize = infile.read(16)
IV = infile.read(16)
decryptor = AES.new(key, AES.MODE_CBC, IV)
with open(outFile, "wb") as outfile:
while True:
chunk = infile.read(chunksize)
if len(chunk) == 0:
break
outfile.write(decryptor.decrypt(chunk))
outfile.truncate(int(filesize))
def allfiles():
allFiles = []
for root, subfiles, files in os.walk(os.getcwd()):
for names in files:
allFiles.append(os.path.join(root, names))
return allFiles
choice = input("Do you want to (E)ncrypt or (D)ecrypt? ")
password = input("Enter the password: ")
encFiles = allfiles()
if choice == "E" or 'e':
for Tfiles in encFiles:
if os.path.basename(Tfiles).startswith("(encrypted)"):
print("%s is already encrypted" %str(Tfiles))
pass
elif Tfiles == os.path.join(os.getcwd(), sys.argv[0]):
pass
else:
encrypt(SHA256.new(password).digest(), str(Tfiles))
print("Done encrypting %s" %str(Tfiles))
os.remove(Tfiles)
elif choice == "D" or 'd':
filename = input("Enter the filename to decrypt: ")
if not os.path.exists(filename):
print("The file does not exist")
sys.exit()
elif not filename.startswith("(encrypted)"):
print("%s is already not encrypted" %filename)
sys.exit()
else:
decrypt(SHA256.new(password).digest(), filename)
print("Done decrypting %s" %filename)
os.remove(filename)
else:
print("Please choose a valid command.")
sys.exit()
谁能帮我解决这个问题?我已经使用了 Python 2 到 3 工具,但它仍然没有用。
另外,能否请您解决目录问题?没必要,但我愿意。
编辑: 我已经用 bytes
和 bytearray
替换了 str
但它 returns 同样的错误。
您的 'password' 变量是一个字符串,但 SHA256.new
需要字节(例如,允许使用 unicode)。您需要的字节列在 Crypto.Hash.SHA256 documentation.
解决方案是在散列之前将密码编码为字节。这几乎就是错误消息所说的(如果您知道 python 3 中的所有字符串都是 unicode 对象):
TypeError: Unicode-objects must be encoded before hashing
解决方案是例如使用 utf8 编码:
SHA256.new(password.encode('utf8')).digest()