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Everything about Bcrypt

Password-based key derivation function

bcrypt is a password-hashing function designed by Niels Provos and David Mazières. It is based on the Blowfish cipher and presented at USENIX in 1999. Besides incorporating a salt to protect against rainbow table attacks, bcrypt is an adaptive function: over time, the iteration count can be increased to make it slower, so it remains resistant to brute-force search attacks even with increasing computation power. Wikipedia →

🧭 Start here: a 6-step reading path

  1. Read the overview: BcryptA 5-minute orientation
  2. Skim a recent paper: Comparison of Argon2id and Bcrypt with Default Parameters in Performance and Security Aspect for Secure AuthenticationInfluential work since 2022
  3. Pick up a classic book: Password Authentication for Web and Mobile AppsThe most-reprinted book on the subject
  4. Read the landmark paper: Analysis Performance BCRYPT Algorithm to Improve Password Security from Brute ForceCited 15 times
  5. Go sideways: ScryptA closely related topic
  6. Go sideways: Crypt (C)A closely related topic

📖 Definitions

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🏆 Landmark papers (most cited)

🆕 Influential since 2022

📚 Books worth reading

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