- 1 year ago
Decrypt Secure Strings in Windows DPAPI using Python
To decrypt Secure Strings in Windows DPAPI using Python, you can utilize the win32crypt
module. Here's an example code that demonstrates the decryption process:
pythonimport win32crypt
def decrypt_secure_string(encrypted_data):
decrypted_data = win32crypt.CryptUnprotectData(encrypted_data, None, None, None, 0)[1]
return decrypted_data.decode('utf-16')
# Example usage
encrypted_string = b'\x01\x00\x00\x00\x58\x00\x00\x00\x0e\x00\x00\x00\xd6\xe5\x72\x12...'
decrypted_string = decrypt_secure_string(encrypted_string)
print(decrypted_string)
In the above code, the decrypt_secure_string
function takes an encrypted Secure String as input (encrypted_data
). It then uses the CryptUnprotectData
function from the win32crypt
module to decrypt the data. The resulting decrypted data is returned as a UTF-16 encoded string.
To use this code, you need to have the pywin32
package installed. You can install it using pip
:
bashpip install pywin32
Replace the encrypted_string
variable with your actual encrypted Secure String. Running the code will decrypt the Secure String and print the decrypted value.
Please note that this code is specific to Windows and relies on the pywin32
package, which provides access to the Windows API. It will work only on Windows systems and requires appropriate permissions to access and decrypt the Secure String using the Windows DPAPI.