hashing
📖 ISTQB Glossary
Official ISTQB Definition
Transformation of a variable length string of characters into a usually shorter fixed-length value or key. Hashed values, or hashes, are commonly used in table or database lookups. Cryptographic hash functions are used to secure data.
3 Ways to Think About It
The Quick Take
Converting data into a fixed-size unique fingerprint.
Look Closer
One-way transformation that can verify data hasn't changed.
The Bottom Line
Creating digital fingerprints for password storage and data integrity.
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