The use of a non-standard algorithm is dangerous because a determined attacker may be able to break the algorithm and compromise whatever data has been protected. Standard algorithms like ``++Argon2PasswordHasher++``, ``++BCryptPasswordHasher++``, ... should be used instead.


This rule tracks creation of ``++BasePasswordHasher++`` subclasses for Django applications.

include::../recommended.adoc[]

== Sensitive Code Example

----
class CustomPasswordHasher(BasePasswordHasher):  # Sensitive
    # ...
----

== See

* OWASP - https://owasp.org/Top10/A02_2021-Cryptographic_Failures/[Top 10 2021 Category A2 - Cryptographic Failures]
* OWASP - https://owasp.org/www-project-top-ten/2017/A3_2017-Sensitive_Data_Exposure[Top 10 2017 Category A3 - Sensitive Data Exposure]
* CWE - https://cwe.mitre.org/data/definitions/327[CWE-327 - Use of a Broken or Risky Cryptographic Algorithm]
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'''
== Implementation Specification
(visible only on this page)

include::../message.adoc[]

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