如何解决我正在尝试读取一个字符串,将其加密,然后将其保存到文本文件中,然后读取该文本文件,然后读取已加密的字符串,并在python中对其进行解密
我正在尝试读取一个字符串,将其加密,然后将其保存到文本文件中,然后再读取该文本文件,然后读取已加密的字符串,并在python中将其解密。字符串“]在开头和结尾,我还尝试将读取列表转换为二进制,但是将其作为b [” b'key'“],任何想法
def write_key(): #creating a key
key = Fernet.generate_key()
with open("key.key","wb") as key_file:
key_file.write(key)
def load_key(): #reading the generated key
return open("key.key","rb").read()
data = input()
data = bytes(data,'utf-8') #you cannot encrypt str do converting it to bytes
write_key() #creating the key
key = load_key() #loading the key
f = Fernet(key)
encrypted = f.encrypt(data) #encrypting the data
print(encrypted)
file = open("encrypted.txt","w") #writing the encrypted the data
file.write("%s\n" %(encrypted))
file.close()
with open("encrypted.txt","r") as f: #reading the encrypted the data
rdata = [line.rstrip('\n') for line in f] #removing \n as it is added while saving the txt file
print(rdata)
key = load_key()
f = Fernet(key)
decrypted_encrypted = f.decrypt(rdata)
print(decrypted_encrypted)
我得到的输出:
Enter the secret message: YOUR MESSAGE
Printing the encrypted message after encryption b'gAAAAABfWdNG64dvT-tpQA1EA-zYC8lsC4hL9EoZ0e008BMIWikfafT_FOmLyjWJh2dinGG8oi6VI16XCpwB1H4AZE2sk-ZgJQ=='
Printing the encrypted message after reading it from the txt file ["b'gAAAAABfWdNG64dvT-tpQA1EA-zYC8lsC4hL9EoZ0e008BMIWikfafT_FOmLyjWJh2dinGG8oi6VI16XCpwB1H4AZE2sk-ZgJQ=='"]
Traceback (most recent call last):
File "C:\Users\Documents\Projects\temp.py",line 31,in <module>
decrypted_encrypted = f.decrypt(rdata)
File "C:\Users\anaconda3\lib\site-packages\cryptography\fernet.py",line 74,in decrypt
timestamp,data = Fernet._get_unverified_token_data(token)
File "C:\Users\anaconda3\lib\site-packages\cryptography\fernet.py",line 85,in _get_unverified_token_data
utils._check_bytes("token",token)
File "C:\Users\anaconda3\lib\site-packages\cryptography\utils.py",in _check_bytes
raise TypeError("{} must be bytes".format(name))
TypeError: token must be bytes
解决方法
传递给decrypt
的数据应该是字节而不是字符串。因此,这个问题。
从encrypted.txt
进行读写时,请分别使用以下二进制模式。
def write_key(): #creating a key
key = Fernet.generate_key()
with open("key.key","wb") as key_file:
key_file.write(key)
def load_key(): #reading the generated key
return open("key.key","rb").read()
data = input()
data = bytes(data,'utf-8') #you cannot encrypt str do converting it to bytes
write_key() #creating the key
key = load_key() #loading the key
f = Fernet(key)
encrypted = f.encrypt(data) #encrypting the data
file = open("encrypted.txt","wb") #writing the encrypted the data
file.write(encrypted)
file.close()
with open("encrypted.txt","rb") as f: #reading the encrypted the data
rdata =f.read()
key = load_key()
f = Fernet(key)
decrypted_encrypted = f.decrypt(rdata)
print(decrypted_encrypted)
版权声明:本文内容由互联网用户自发贡献,该文观点与技术仅代表作者本人。本站仅提供信息存储空间服务,不拥有所有权,不承担相关法律责任。如发现本站有涉嫌侵权/违法违规的内容, 请发送邮件至 dio@foxmail.com 举报,一经查实,本站将立刻删除。