key length

Definitions

Electronics

  • The length, in bits, of a key (6).
  • The total number of possible combinations arising from a given key length (1). The greater the key length, the greater the protection against a brute force attack. A 64-bit encryption key has over 1.8 × 1019 possible combinations, a 128-bit key over 3.4 × 1038, and a 256-bit key has over 1.1 × 1077 combinations.
  • synonymkey space
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