Password Hash Generator

Generate secure password hashes using PBKDF2 with salt. Perfect for understanding password storage security.

Generate Password Hash

Password:

Show password

Algorithm:

Iterations:

Higher = more secure but slower

Verify Password

Password to Verify:

Stored Hash (combined format):

About Password Hashing

Password hashing is a one-way cryptographic function that transforms passwords into fixed-size strings. Proper password hashing includes salting and key stretching to protect against common attacks.

Security Principles:

Salting: Random salt prevents rainbow table attacks
Key Stretching: Multiple iterations slow down brute-force attacks
One-Way: Cannot reverse hash to get original password
Unique Salts: Each password gets its own random salt

Best Practices

Storage

Never store passwords in plain text
Always use salt (generated randomly)
Store algorithm and iteration count with hash
Use at least 100,000 iterations

Production Use

Use established libraries (bcrypt, Argon2)
Don't implement your own crypto
Increase iterations over time
Consider hardware acceleration

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