Hashing vs. Encryption
Encryption is a two-way function intended for data retrieval with a decryption key. Hashing is a mathematically irreversible one-way function designed to verify authentication without exposing the plain text secret.
Salting Against Rainbow Tables
A salt is a cryptographically random value generated uniquely per user and appended to the password prior to hashing, rendering precomputed lookup tables completely useless.
Memory-Hard Algorithms: Scrypt and Argon2
Modern algorithms like Argon2 (winner of the Password Hashing Competition) require substantial RAM to calculate, neutralizing ASIC and GPU brute-force clusters.
About the Author & Editorial Standards
Osvaldo Luna
Lead Web Architecture & Software Security Specialist
Osvaldo Luna is a software engineer and web specialist with over 8 years of experience in high-performance client-side web applications, in-browser cryptography, and data privacy.
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