Update from task a785e384-7b40-4407-9dda-f07d086c7aed

[duksh]

This PR was created by qwen-chat coder for task a785e384-7b40-4407-9dda-f07d086c7aed.

Summary by CodeRabbit

• New Features

  • Added secure buffer and string types for handling sensitive data, with automatic memory clearing when no longer needed.
  • Added support for creating, reading, modifying, extending, and transferring sensitive byte data.
  • Added a compatibility alias for the cryptography deprecation warning.

• Security

  • Improved protection of sensitive values by ensuring their contents are zeroized after use.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: f72e9720-be72-47dd-9395-a92b255c7954

📥 Commits

Reviewing files that changed from the base of the PR and between 6eab622 and dc46e00.

📒 Files selected for processing (6)

• .gitignore
• Cargo.toml
• src/cryptography/utils.py
• src/rust/cryptography-crypto/Cargo.toml
• src/rust/cryptography-crypto/src/lib.rs
• src/rust/cryptography-crypto/src/secret.rs

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📝 Walkthrough

Walkthrough

The change adds zeroized Rust secret types, exposes a deprecation-warning alias, adds the zeroize workspace dependency, and expands .gitignore coverage.

Changes

Rust secret handling

Layer / File(s)	Summary
Zeroization dependency and module exports Cargo.toml, src/rust/cryptography-crypto/Cargo.toml, src/rust/cryptography-crypto/src/lib.rs	The workspace and crate add zeroize. The crate exposes the secret module and re-exports zeroize.
Secret buffer and string APIs src/rust/cryptography-crypto/src/secret.rs	SecretBuffer and SecretString provide sensitive-data storage, access, conversions, and drop-time zeroization. Tests cover their behavior.

Deprecation compatibility

Layer / File(s)	Summary
Public warning alias src/cryptography/utils.py	Adds DeprecatedIn51 as an alias for CryptographyDeprecationWarning.

Repository ignore patterns

Layer / File(s)	Summary
Categorized ignore rules .gitignore	Expands ignore patterns for build artifacts, dependencies, environments, logs, editors, system files, coverage, and test outputs.

Estimated code review effort: 3 (Moderate) | ~20 minutes

Suggested reviewers: alex

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 inconclusive)

Check name	Status	Explanation	Resolution
Title check	❓ Inconclusive	The title identifies a task update but does not describe the main change, which adds zeroizing secret-handling types and dependencies.	Replace the task identifier with a concise summary of the secure secret-handling changes, such as “Add zeroizing SecretBuffer and SecretString types”.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches 💡 1

🛠️ Fix failing CI checks 💡

• Create stacked PR
• Commit on current branch

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch security-vulnerability-scan-c7aed

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