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time-memory trade-off [1 record]

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Record 1 1997-11-27

English

Subject field(s)
  • IT Security
CONT

The obvious method of attack is brute-force exhaustive search of the key space [which is time consuming] Later it was suggested that a rich and powerful enemy could build a special-purpose computer capable of breaking DES [Data Encryption Standards] by exhaustive search in a reasonable amount of time. Later, Hellman showed a time-memory trade-off that allows improvement over exhaustive search if memory space is plentiful, after an exhaustive precomputation. These ideas fostered doubts about the security of DES.

French

Domaine(s)
  • Sécurité des TI

Spanish

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