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Questions tagged [passlib]

passlib is a Python library for key derivation and hashing functions

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50 questions
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How does CryptContext hashing know what secret to use?

I have the following code snippet: from passlib.context import CryptContext pwd_context = CryptContext(schemes=["bcrypt"], deprecated="auto") pwd_context.hash(password) Which is described here. What i don't understand is, how can this be secure if…
supersick
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1 answer

Can't import passlib into python3

Trying to import passlib into python3 and it fails: $ pip freeze | grep lib passlib==1.6.5 $ python3 Python 3.4.2 (default, Oct 8 2014, 10:45:20) >>> import passlib Traceback (most recent call last): File "", line 1, in…
Aladine
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4
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1 answer

ModuleNotFoundError: No module named 'passlib' despite passlib already being installed

I have a python module that tries to import from passlib.hash import pbkdf2_sha256, however when running the module, I get the ModuleNotFoundError. I have tried running the module in my base environment, a venv, in a poetry shell, and I've tried…
Chris
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2 answers

Alembic not handling column_types.PasswordType : Flask+SQLAlchemy+Alembic

Background I'm trying to use a PostgreSQL back-end instead of Sqlite in this Flask + RESTplus server example. I faced an issue with the PasswordType db column type. In order to make it work, I had to change the following code in…
patlachance
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1 answer

Check password hash created by Django in Flask

I have a password hash generated by Django. I want to log in a user with this password hash from Flask. How can I verify the password in Flask? from django.contrib.auth import hashers hash = hashers.make_password('pasword') #…
Sung Jin O
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ModuleNotFoundError: No module named 'passlib', even after pip installing and pipenv installing

So I know, it seems this question has been asked before, but I do believe I have a unique situation. I'm developing a Flask app (specifics below). I've created a virtual environment with pipenv. But no matter what I try, I keep getting this…
Alex van Winkel
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1 answer

Is this a bug in the passlib base64 encoding?

I am trying to decode an re-encode a bytesytring using passlibs base64 encoding: from passlib.utils import binary engine = binary.Base64Engine(binary.HASH64_CHARS) s2 =…
HerpDerpington
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1 answer

Securely implementing two factor authentication in flask

I have flask-login and an SQLAlchemy db to authenticate user login attempts. But merging username and password inputs with a token-based totp has been the point of my problem. I'm using passlib to manage the totp authentication which has a token…
Dinil Fernando
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Use custom Base_64 dictionary for passlib.hash.scrypt

Is it possible to specify a custom Base_64 dictionary when encoding data within passlib? I have a requirement to generate 'scrypt' encoded passwords on a system that does not allow the '+' character within its configuration files. More specifically…
HazyMaze
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How to ensure RNG entropy pool is "secure and full" for generating passwords with passlib?

When looking at using Python's passlib module, the documentation[1] comes with a warning for generating passwords which reads.. Warning: Before using these routines, make sure your system’s RNG entropy pool is secure and full. Also make sure that…
gratz
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How to fix length of hashed value in passlib context python?

I am using below code for encrypting password. from passlib.context import CryptContext pwd_context = CryptContext( schemes=["pbkdf2_sha256"], default="pbkdf2_sha256", pbkdf2_sha256__default_rounds=30000 ) def…
Urvi Soni
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1
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1 answer

Using PassLib to Verify Hash from Flask User Passwords

I'm currently trying to migrate my Flask Users over to a Django Backend. However, when I'm using passlib to verify the hash, I can't figure out why it won't verify. Our flask app settings SECURITY_PASSWORD_HASH =…
yrekkehs
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1 answer

ValueError: malformed sha1_crypt hash (checksum must be exactly 28 chars)

I am new to programming and to learn I tried to make an authentification program that stores password and usernames in .txt files using passlib: But I am getting this error when I try to verify my hashed password in my password.txt file:`Traceback…
Thewizy
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1 answer

ValueError: not a valid sha256_crypt hash when verifying hashed password during login

I get a server 500 error in my flask-app when trying to verify the user password. I'm running two identical flask-apps one on my local ubuntu system and one on a linode server. On the local system I run it on the built in development server, on the…
RogerB
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expected sha256_crypt hash, got sha256_crypt config string instead

Im getting the following error expected sha256_crypt hash, got sha256_crypt config string instead. expected sha256_crypt hash, got sha256_crypt config string instead This is my code what am i doing wrong? code : @app.route('/login' ,…
Tim Boom
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