Question 1

What is a cryptographic hash?

Accepted Answer

A cryptographic hash is a one-way mathematical function that converts input data into a fixed-length string. The same input always produces the same output.

Question 2

Is hashing the same as encryption?

Accepted Answer

No. Encryption is reversible with a key, while hashing is designed to be one-way and cannot be reversed back into the original data.

Question 3

Which hash algorithm should I use?

Accepted Answer

For modern applications, SHA-256 or stronger algorithms such as SHA-384 and SHA-512 are recommended. MD5 and SHA-1 should only be used for legacy compatibility.

Question 4

Is this Hash Generator secure?

Accepted Answer

Yes. All hashes are generated locally in your browser using the Web Crypto API and SparkMD5. Your data never leaves your device.

Question 5

Can I hash passwords with this tool?

Accepted Answer

This tool is suitable for testing and verification. For storing passwords in production, use dedicated password hashing algorithms such as Argon2, bcrypt or scrypt.

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