🔐 Bcrypt Hash Generator

About Bcrypt Hash Generator

Bcrypt is a password hashing function designed to be slow and computationally intensive, making it resistant to brute-force attacks. It's widely used for securely storing passwords in databases.

Features

• Generate Hashes: Create secure bcrypt hashes from passwords
• Verify Hashes: Check if a password matches a stored hash
• Adjustable Cost: Choose salt rounds from 4 to 12
• Client-Side: All processing happens in your browser for privacy
• Industry Standard: Uses the same algorithm as production systems

Understanding Salt Rounds

• 4-6 rounds: Fast but less secure (not recommended for production)
• 10 rounds: Recommended balance between security and performance
• 12 rounds: Very secure but slower (use for high-security applications)

Note: Each increment doubles the computation time. Higher is more secure but slower.

What is Bcrypt?

Bcrypt is a password hashing algorithm based on the Blowfish cipher. Unlike simple hash functions (MD5, SHA), bcrypt is designed to be slow, which makes it much harder for attackers to crack passwords through brute-force attacks.

Use Cases

• Developers: Test bcrypt implementation before using in production
• Security Testing: Generate test hashes for authentication systems
• Learning: Understand how bcrypt works and password security
• Verification: Check if passwords match existing bcrypt hashes

Bcrypt Hash Format

A bcrypt hash looks like: $2a$10$N9qo8uLOickgx2ZMRZoMyeIjZAgcfl7p92ldGxad68LJZdL17lhWy

• $2a: Bcrypt algorithm version
• $10: Cost factor (salt rounds)
• Next 22 chars: Salt
• Remaining chars: Hashed password

Security Tips

• Always use salt rounds of 10 or higher for production
• Never store passwords in plain text
• Use bcrypt instead of MD5 or SHA for password storage
• Increase salt rounds as computing power increases over time