Shahzeb Zafar's blog

2 posts

Bcrypt Max Password Length: The 72-Byte Limit Explained

If your Python app suddenly started throwing ValueError: password cannot be longer than 72 bytes, this is why. Originally published on BcryptGenerator.org. Bcrypt's maximum password length is 72 byte

Nov 13, 20269 min read

Nov 13, 2026
Nov 13, 20266 min read
Can You Decrypt a Bcrypt Hash? No, and Here Is What Works Instead
Every week someone asks how to "decrypt" a bcrypt hash. Here is the short answer, and what to do instead. Originally published on BcryptGenerator.org. No, a bcrypt hash can't be decrypted. Not online
6 min read

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Bcrypt Max Password Length: The 72-Byte Limit Explained

Can You Decrypt a Bcrypt Hash? No, and Here Is What Works Instead