Stories by Deeptiman Pattnaik on Medium · Jan 17, 2026
Understanding FIPS 202: The Design of Keccak, SHA-3, and SHAKE
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Cryptographic hash functions are foundational to the construction of practical cryptographic systems. A hash function transforms input data of arbitrary length into a fixed-length message digest that is easy to compute but impossible to invert. Once a digest is produced, recovering the original message is computationally infeasible. Hash functions are widely used in cryptographic applications,…
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