Hash Generator

What is a Hash?

A hash is a fixed-size string of characters generated from input data of any size. Hash functions are one-way operations that cannot be reversed to obtain the original data. They're commonly used for:

• Verifying data integrity (checksums)
• Storing passwords securely
• Creating unique identifiers for data
• Digital signatures and data authentication

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Using the Hash Generator Tool

Basic Usage

1. Choose Input Type: Select between text input or file input depending on what you want to hash.
2. Enter Your Data:
   • For text input: Type or paste the text you want to hash in the text area.
   • For file input: Upload the file you want to hash (maximum size: 5MB).
3. Select Hash Algorithms: Check the boxes for the hash algorithms you want to use. Multiple algorithms can be selected simultaneously.
4. Configure Options: Choose whether to output in lowercase and enable HMAC if needed.
5. Generate Hash: Click the "Generate Hash" button to create hash values.
6. View Results: Hash values will be displayed in a table with options to copy each hash to clipboard.

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Supported Hash Algorithms

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HMAC Functionality

HMAC (Hash-based Message Authentication Code) provides a way to verify both data integrity and authenticity by incorporating a secret key into the hash calculation.

When to Use HMAC:

• When you need to verify that data hasn't been tampered with
• For API request signing
• When creating authentication tokens

How to Use HMAC with this tool:

1. Check the "Enable HMAC" option
2. Enter your secret key in the HMAC Key field
3. Generate the hash as normal

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Security Considerations

• Hash Selection: For security-sensitive applications, avoid MD5 and SHA-1, and prefer SHA-256, SHA-512, or SHA3-256.
• Processing: All hash calculations are performed locally in your browser. No data is sent to our servers.
• Password Hashing: For password storage, specialized algorithms like bcrypt, Argon2, or PBKDF2 are recommended instead of simple hashes.