spring-projects / spring-projects/spring-security

Consider using Bouncy Castle BCrypt implementation

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#16,880 2 comments 0 reactions 0 assignees View on GitHub

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for: team-attention type: enhancement
Dominant language
Java
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Description

BCryptPasswordEncoder currently uses an internal implementation of BCrypt.

We should consider removing the internal implementation and use Bouncy Castle's implementation instead.

NOTE: Argon2PasswordEncoder and SCryptPasswordEncoder already uses Bouncy Castle's implementation.

Related gh-16879

Contributor guide

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start with BCryptPasswordEncoder and compare its internal BCrypt implementation with the Bouncy Castle usage in Argon2PasswordEncoder and SCryptPasswordEncoder. Review related issue gh-16879, then determine whether the internal implementation can be removed while preserving BCrypt behavior.

Written by the indexing model from the issue text.

Assessment

Tech stack
java
Domain
security
Issue type
Refactor
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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