![]() The cryptography library includes the Fernet recipe, a best-practices recipe for using cryptography. Symmetric key encryption Fernet – AES CBC + HMAC, strongly recommended Even then, you usually secure the application with a password, then exchange encrypted information using a key, perhaps one attached to the user account. Passwords are for when only an end-user needs access to the specific information. You can derive a key from a password, with a little care.īut for a web application or process running in a cluster without human attention to keep running it, you want to use a key. A key should not be human memorable, it is something you store in a secret location but machine readable, whereas a password often can be human-readable and memorised. Last but not least, when encrypting and decrypting, we talk about keys, not passwords. I also recommend that encryption and decryption applies to bytes encode text messages to bytes first stringvalue.encode() encodes to UTF8, easily reverted again using code(). For Python 3, that trusted library is cryptography. First of all, don’t re-invent the cryptography wheel, use a trusted cryptography library to handle this for you. ![]() You don’t need to do much work to implement a proper encryption scheme however. You also should take encrypted data storage serious trivial encryption schemes that one developer understands to be insecure and a toy scheme may well be mistaken for a secure scheme by a less experienced developer. ![]() Python has no built-in encryption schemes, no.
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