1. 25 Jun, 2015 2 commits
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    • Stephan Mueller's avatar
      crypto: jitterentropy - add jitterentropy RNG · bb5530e4
      Stephan Mueller authored
      The CPU Jitter RNG provides a source of good entropy by
      collecting CPU executing time jitter. The entropy in the CPU
      execution time jitter is magnified by the CPU Jitter Random
      Number Generator. The CPU Jitter Random Number Generator uses
      the CPU execution timing jitter to generate a bit stream
      which complies with different statistical measurements that
      determine the bit stream is random.
      The CPU Jitter Random Number Generator delivers entropy which
      follows information theoretical requirements. Based on these
      studies and the implementation, the caller can assume that
      one bit of data extracted from the CPU Jitter Random Number
      Generator holds one bit of entropy.
      The CPU Jitter Random Number Generator provides a decentralized
      source of entropy, i.e. every caller can operate on a private
      state of the entropy pool.
      The RNG does not have any dependencies on any other service
      in the kernel. The RNG only needs a high-resolution time
      Further design details, the cryptographic assessment and
      large array of test results are documented at
      CC: Andreas Steffen <andreas.steffen@strongswan.org>
      CC: Theodore Ts'o <tytso@mit.edu>
      CC: Sandy Harris <sandyinchina@gmail.com>
      Signed-off-by: default avatarStephan Mueller <smueller@chronox.de>
      Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>