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Authored by on Sep 2 2014, 4:32 AM.



From 6e04a47db68a0ae3947dbd5bfdb8c228ddb83c0e Mon Sep 17 00:00:00 2001
From: Stephan Mueller <>
Date: Mon, 1 Sep 2014 17:53:33 +0200
Subject: [PATCH v9 1/7] SP800-90A Deterministic Random Bit Generator

This is a clean-room implementation of the DRBG defined in SP800-90A.
All three viable DRBGs defined in the standard are implemented:

  • HMAC: This is the leanest DRBG and compiled per default
  • Hash: The more complex DRBG can be enabled at compile time
  • CTR: The most complex DRBG can also be enabled at compile time

The DRBG implementation offers the following:

  • All three DRBG types are implemented with a derivation function.
  • All DRBG types are available with and without prediction resistance.
  • All SHA types of SHA-1, SHA-256, SHA-384, SHA-512 are available for
  • the HMAC and Hash DRBGs.
  • All AES types of AES-128, AES-192 and AES-256 are available for the
  • A self test is implemented with drbg_healthcheck().
  • The FIPS 140-2 continuous self test is implemented.
  • Additional cipher primitives, such as Serpent or Twofish, can be
  • added to the DRBG without changing the implementation. The only
  • change necessary is to the DRBG definition given in the cores[]
  • array.

Signed-off-by: Stephan Mueller <>

random/drbg.c | 2364 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 2364 insertions(+)
create mode 100644 random/drbg.c

diff --git a/random/drbg.c b/random/drbg.c

new file mode 100644


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