> For the complete documentation index, see [llms.txt](https://openai.gitbook.io/code-cheatsheets/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://openai.gitbook.io/code-cheatsheets/all/cs_fundamentals/password_hashing.md).

# Password Hashing

Recommendation: Argon2, won 2014-2016 password hashing contest

<https://guptadeepak.com/comparative-analysis-of-password-hashing-algorithms-argon2-bcrypt-scrypt-and-pbkdf2/>

1. **Argon2**: Likely to see increased adoption as the new standard for password hashing. Its flexibility and security make it well-positioned for future cryptographic needs.
2. **bcrypt**: Will continue to be widely used due to its established presence and simplicity. However, it may gradually be replaced by Argon2 in high-security applications.
3. **scrypt**: Will remain relevant, especially in cryptocurrency and other memory-hard applications. However, it may lose ground to Argon2 in general use cases.
4. **PBKDF2**: Due to its widespread implementation and FIPS compliance, PBKDF2 will continue to be used, but it's likely to be phased out in favor of more secure alternatives for password hashing.